garageGT research, testing & development

Tarzan driving for Japan @ Circuit Battles

2011-04-11T18:10:00.000-07:00

Firebird International Raceway

Phoenix, AZ

04/10/11

After 3 days of planning and 4 weeks of prep time, a street driven EVO X was transformed into a competitive track car to race against America's best at Circuit Battles. Tarzan Yamada accepted our invitation despite the unfortunate earthquake in Japan and wanted to take the opportunity to represent Japan and ask for help from the motorsports spectators in USA.

The Japan relief fund is accepting your donations,

text REDCROSS to 90999 to donate $10

Please help Japan !

Official video: Tarzan driving for Japan

Race recap:

The Pro Track Challenge teams were looking impressive during practice, topping 170MHP at the end of the start/finish straight, which is actually used for drag racing. Our EVO X setup was simple and effective, but it was no match to the top teams.

Circuit Battle teams http://www.redlinetrackevents.com/?page_id=540

Tarzan Yamada got behind the wheel of garageGT / Yokohama EVO X and got it out on the track for the practice session in the morning. But due to oil spill, the session was cancelled. The car going to driven at high pace during qualifying as shakedown. Tarzan managed a best lap of 1:08.905, placing 6th.

Qualifying sesion results

During lunch break, we were trying to figure out a fuel cut out issue per Tarzan's complaint about low rpm range pick up. While Mitch was studying engine logs, Anthony got in the car and turned the traction control off ! It was a fun moment :) We sent Tarzan out for Seeding race (5 lap Super session) thinking how much faster he would be after getting freed up from the electronics.

Super session video part 1

Super session video part 2

The rolling start after the pace laps was a must see !

We finished 5th, and was happy with our new best time of 1:05.282. We were against 4th place finisher, the K&N Engineering twin turbo g35 for round 1 of Circuit Battles.

Super Session results

Driven by Paul Brown, the K&N Engineering g35 had major advantage on the main straight, but we showed good potential matching its cornering speeds.

Circuit Battles Round 1 Video

Tarzan vs Paul Brown

We swapped a fresh set of Yokohama A005 slicks to the front and were ready for the next opponent; ABF Tech division Mini. 700HP monster !

Tarzan had a lot of fun battling Dez Ballard and the finish was close. Epic battle...!

Circuit Battles Round 2 Video

Tarzan vs Dez Ballard

Overall, we were happy with the performance of the car. We know we have a good base, this car will be more competitive with more time. We would like to thank our sponsors; Yokohama, MP Tuning and Muellerized for excellent support throughout the project.

As for the final, after all the dogfights, Lou Gigliotti of LG Motorsports won the last battle against Mike Cronin Jr., driving the Fontana 350Z. It was a breathtaking fender to fender finish, we can't wait to see the full coverage.

Final Results

Stay tuned for the airing date of Circuit Battles Phoenix round on VERSUS TV.

more info on http://www.redlinetrackevents.com/

picture update:

garageGT & Tarzan to race against America's Best

2011-03-25T19:31:00.000-07:00

The biggest challenge yet.. We are taking the opportunity of facing the fastest road racing cars in U.S.

Redline Track Events created a unique format of road racing similar to special stages of WRC and D1 grand prix, but avarage lap speeds trapping over 100mph ! Finally, the motorsports spectators will see the madness and we just couldn't stay out of trouble and contacted Redline Track Events to be a part of Circuit Battles. We are entering a 2008 EVO X that had never been tested before, but We trust our setup and driver Tarzan, who is representing Japan for the 1st time since the devastating earthquake. Our prayers are with them..

PRESS RELEASE

Stay tuned on Redline Track Events for 1st airing date announcement on VERSUS TV.

garageGT / Yokohama EVO X
C-West front & rear bumpers / APR front splitter / Aeromotions rear wing
Volk TE37SL 18x9.5 wheels / Yokohama Advan A005 250/650R18 tires
Mullerized Ohlins DFT suspenion / Cusco sway bars
Carbonetic blade clutch / Girodisc 2 piece rotors & race pads
ATP GTX3076R stock frame turbo
garageGT downpipe / test pipe / Tomei Expreme Ti exhaust
garageGT 100mm intake / garageGT intercooler piping / ETS intercooler core
garageGT no surge fuel kit w/800cc injectors / walbro & bosch fuel pumps
Stock block / Stock head with Tomei TypeR camshafts
MPTuning AEM EMS & Mitch tune
460WHP @ 24psi / 2950lbs

2011 season starts with the GTX series

2011-01-14T08:48:00.000-08:00

Holiday season is over and 2011 looks promising.. We will make more power with the new GTX units !

here is a single scroll GTX3582 tial Vband setup we did for a customer...

The Key elements for Super Lap Battle

2010-11-25T11:16:00.000-08:00

It wouldn't be possible without these key elements to podium at Super Lap Battle two years in a row. We can't wait for 2011...! It will be another exciting season.

Big thanks to:
Cenk Ocakoglu - Founder/CEO/Driver, garageGT
Jeramya Witters - Head Mechanic, garageGT
Mitch Pederson - Head Tuner, garageGT / founder, MP Tuning
Eiji "Tarzan" Yamada - Driver, The Time Attack Sensei
Jeff Milton - Track crew chief, garageGT
Daiji Takashima - Race director / Manager, C-West USA
Taka and Sono from Tomei Powered USA

And to our sponsors:
Yokohama Tire
Tomei Powered
Cusco
Carbonetic
C-West

Stay tuned !

Super Lap Battle pictures from www.driftfotos.com

2010-11-18T14:16:00.000-08:00

Larry Chen, also the photographer from speed hunters, sent us some cool pictures of the WRX today !

enjoy !

Super Lap Battle Supra action pictures

2010-11-17T11:28:00.000-08:00

Supra looked good as well !

Super Lap Battle WRX action pictures

2010-11-17T11:16:00.000-08:00

VanHap photography sent us the action pictures from the track, enjoy !

The Finals, Part 3: Super Lap Battle

2010-11-13T21:06:00.000-08:00

11/10/10
Super Lap Battle day @ Buttonwillow

We were ready for action wednesday morning, qualifying laps put the WRX in group B and the Supra in group D, Supra needed to get faster, it had only lapped a 2:01 on practice day.

WRX went out in group B and laid a fast time of 1:57.159 in the 1st Time attack session. We were still behind the AMS EVO X and R35 GT-R running 1:56s...It was time for the new tires ! and Tarzan asked for more power, ok, another 2 psi..Supra was out again looking for some fast times fighting with the cold track surface ! Mitch from MPT was doing fine adjustments all day..

Video: WRX morning session

part 1 from speedhunters.com
octane report coverage
urbanracer coverage

We swapped the new set of Yokohama sponsored Advan Neovas and Tarzan went out to beat the AMS cars. The ignition problem we had in the morning was getting worse, new spark plugs didn't seem to help. Tarzan was only able to lap a 1:57.850. Supra was still struggling with grip, yet lapping a 1:58.

Video: WRX Time Attack session 2

speedhunters part 2

Still can't figure the ignition problem... session 3 was slower. Finished 3rd behind the AMS EVO X and AMS R35 GT-R. Supra went out for the last session hoping to get a little faster but didnt have enough laps.

WRX last chance video
Supra Video: Time Attack 3

We had the chance but couldn't take it, lessons learned ! I can't wait for next year !

speedhunters part 3

Results:

The Finals, part 2: Import Tuner/Continental tire EVO vs STi Shootout

2010-11-12T20:23:00.000-08:00

11/9/10
EVO vs STi Shootout
& Super Lap Battle practice @ Buttonwillow

After the willow springs event, we headed back to LA with Mitch and the Ward'o's. I checked into the Holiday inn at LAX, Mitch met with his guests from Holland, and Ward'o's drove back to San Diego. Monday, I met with Daiji and our driver for SLB finals, Tarzan Yamada and had lunch with them at Adanus @ Lake Forest. Then I went to Mitch’s shop did some emails and drove the garageGT EVO to see APC @ Avalon, we rocked hard, then headed to Buttonwillow. Arrived at midnight, 5 minutes behind Daiji and Tarzan. Yokohama tire sponsored garageGT WRX and Supra had already arrived, Ready for SLB practice & EVO/STi shootout !

Wheel & Tire:

Speed Ventures EVO/WRX challenge: 18x9 / 245/40/18 Toyo RA1 (100 treadwear)
Import Tuner/Continental EVO/STi Shootout: 17x9.5 265/40/17 Continental (340 treadwear)

Car Setup:
Tomei 2.3L stroker kit
Tomei typeR camshafts
OE exhaust manifold (not ported)
GT3076R .82 A/R turbo & 44mm tial wastegate
garageGT FMIC intercooler
garageGT downpipe & test pipe
Tomei prototype Expreme Ti cat-back exhaust
4" (100mm) intake pipe, HKS 100mm filter & custom airbox
HKS SSQV recirculated blowoff valve
MP Tuning AEM EMS v2 #0001
HKS Hipermax II Pro coilovers & Swift springs
Cusco front & rear sway bars
Performance Friction rotors & race pads
Carbonetic single carbon blade clutch & OE flywheel
Full interior / 3180lbs (1445kg) / OE bumper & wing
450 ftlb (62kgm) Wheel torque / 405 WHP
600 ftlb (82kgm) Flywheel torque / 540 BHP

Personal best time of 2:01.311 was clocked at round 6 of EVO/WRX Challenge on October 24. I went out to beat it on harder compound tires, relying on the KAPS ACD Conrtoller, and lapped a 2:03.4XX in the morning practice using the Tarmac fast setting at warm up pace.

In the time attack session, I switched to Tarmac Slippery mode, and dropped lap times to 2:01.4XX. The hairpin, turn #2 was where I felt the most drastic change. The Continentals were losing grip..

20 min time attack Video

I was planning to swap tires around before the 5 lap battle, but the practice schedule for the WRX and Supra did not allow us to fully concentrate on the EVO. I went out with tortured front tires and got a 2:01.6XX clocked.

5 Lap time attack Video

GarageGT EVO IX laid the 5th fastest time of the day among the 12 competitors. AMS EVO X ran a super fast time of 1:55.6XX on the Continentals (285s), winning the shootout and showed teeth against our WRX for SLB time attack day.

We would like to thank to our sponsors, Tomei Powered, MPT Tuning, Carbonetic, Perofmance Friction and KAPS Transmission. The combination seems to be working :) Thank you !

Practice day for SLB went fairly smooth, The WRX lapped a lazy 1:58.5XX, Tarzan asked for a +2 kg front spring rate increase, Daiji talked to Tein, and they pulled the springs right off their truck ! . We were targeting 1:55s with improved Aero and brake upgrade (new pads!) and beat our time 1:57.188 which won the street AWD class last year.

Tarzan was jumping from WRX into the Supra throughout the day..

WRX 1.58.5XX Run

Wednesday was looking to be a crazy day going off track with Supra, when looking for grip on the cold surface of Buttonwillow.

Supra no grip video

We left the cars at the garage and headed out to Barbeque Ranch @ Buttnwillow which is our regular spot..

We relaxed at night with a lot of beer and hookah !! Tarzan loved it :)

The Finals, part 1: EVO/WRX challenge round 7

2010-11-12T10:23:00.000-08:00

11/07/10
EVO/WRX challenge @ streets of willow

Our 2nd place finish for the 2010 championship was secure, so we took the chance to practice on the wheel & tire setup for the upcoming Import tuner/modified magazine EVO/STi shootout. Continental tire sponsors the event every year, and tuners are invited to run on Continental extreme grip (340 treadwear) tires. We decided to maximize grip with 17x9.5 wheels borrowed from our customer, Patrick Ward.

After we received the invitation from the magazine, we talked to KAPS transmission about their ACD computer which adjusts torque split based on driver preference. They sponsored our EVO IX and it was ready for the test day at Streets of willow running 265/40/17 Continental tires. We wanted to use the advantage of ACD controller to offset the effect of the hard compound street tire compared to our Toyo RA1 set we had used at Buttonwillow.

We ran with the stock ACD controller in the morning sessions, lap times are below.

Video: Run group: Red 2 – OEM ACD

1:31.023
1:30.515
1:29.538
1:28.630*
1:28.711

Video: Run group: Red 3 – OEM ACD

1:30.888
1:29.089
1:29.555
1:28.711
1:27.596*
1:27.916
1:28.205
1:28.331

Then we switched to the KAPS ACD Controller, and used the base Tarmac maps provided by them. I can’t say I utilized the system perfectly, having less front grip makes it harder to get the car in turn in and throttle out. Ambient termps were under 60F all day, dropping to 50s in the afternoon, freeeezing cold!

Run group: Red 4 – Tarmac technical

We had a chance to run bumper to bumper with EVO/WRX challenge mod class contender, Isamu. His EVO VIII is well built, and runs on 255 Nitto NT01s (100 treadwear semi slick). I only had advantage at corner exits and straight lines with more power, and Isamu had better entry and mid-corner speed, carrying more speed, thus lapping 1:26.250 against my 1.27:004. We also had the Good-Win Racing Miata pushing behind us and running a 1:24.555 after getting around the EVOs.

Video: Battle with Isamu
Video: Isamu's view

1:28.019
1:27.402
1:27.012
1:27.004*
1:27.421
1:27.427

Run group: Red 5 – Tarmac Fast & Tarmac slippery (last 3 laps)
I went out again and used the other 2 tarmac base maps and got some more time shaved off despite the drop in temperature. But can’t deny the fact that the car was faster with cooler air.

Video: Last session, fastest of the day

1:32.212
1:27.814
1:27.099
1:26.323*
1:26.476
1:27.405
1:43.250

Patrick Ward was also on the track with his 05 STi, he lapped a 1:24.400 by the end of the day.
Pictures coming soon..

Video: Wardo STi

Overall, it was a fun speed Ventures EVO/WRX challenge as usual, cars were matched equally running within tenths of seconds, just like we had planned this event for ! The 2010 season had reached the end. We will make couple of rule changes and get more cars and have more fun for 2011 !!

Speed Ventures 2010 EVO/WRX Challenge summary
EVO/WRX Challenge rule discussions before season

Patrick's STi takes 3rd place unlimited @ GTGP Laguna Seca

2010-10-25T14:26:00.000-07:00

Patrick and his Porsche club buddies did the Global Tuner Grand Prix (GTGP) past weekend. His 2005 STi was the only Subaru out there ! See what Patrick Ward had to say about the event, comment posted !

Videos:

Practice day

Time attack day

Octane report event coverage:

http://octanereport.com/racing/2010/10/25/global-tuner-grand-prix-hits-laguna-seca.html

event pictures:

http://mclassimages.com/2010/10/24/global-tuner-grand-prix/

EVO/WRX Challenge @ Buttonwillow

2010-10-25T13:59:00.000-07:00

This was race # 6 of 2010 season.. We finished 2nd in mod class and secured our 2nd place finish for the year. It was a great day at Buttonwillow and we managed to pull a best time of 2.01:300 in the last session of the day.

Videos:
Session 1 (2:04.078)
Session 2 (2:03.083)
Session 3 (2.02:214)
Session 4 (2.01:311)

Subiefest 2010

2010-10-11T15:11:00.000-07:00

We had major fun overall We just swapped a new upgraded set of axles from driveshaftshop and threw the car on the track for the 1st time since the AWD street class win of 2009 superlap battle finals Tarzan Yamada. Oh, also had a brand new set of rotors and pads

The WRX started the day with problems, but we managed to get it on the track about 11AM, and did 2 practice sessions before the time attack sessions started. I havent driven it since subiefest 2009, so was pretty exciting to get back behind the streering wheel. I did ok, but should have done better in the last session. Lesson learned :)

Although Crawford's STi was an unlimited class car, Subiefest organizers let it run in our class with a tire swap. We are not sure what tires they ran, but doesn't really matter as we already know it is one of the top 3 unlimited AWD cars in US. Crawford also had a very good day, taking 1st place for unlimited and street/mod classes. Its always fun to be with hardcore subaru guys and see them push the limits. Cobb should have been running on 265 Hankook RS3s (140 treadwear), and we were on 255 Yokohama AD08s (180 treadwear).

DrivingsportsTV coverage

Carbonetic interview

Street/Mod class results:

1- Crawford Performance STi 1:26.XXX
2- Cobb Tuning STi 1:30.020
3- GarageGT WRX 1:30.630

In the Unlimited class, JC Meynet of AQ Motorsports went off track at turn 9 as he was pushing for RTA class record in the last time attack session. You can see the dust cloud in our Time attack 3 video. I'm sure he will be back soon on the track, luckly he didnt damage the frame. Video & pictures

Local guys from South Coast Subaru (team SCS) took the street class, Vincent (who also runs EVO/WRX challenge with us) got 1st place with a blazing fast time of 1:34.3XX. It will be fun to watch EVO/WRX street class competition as there is only buttonwillow and streets of willow left on the calendar.

I would like to thank to all Subaru owner who ran on the track, it was good to see the community making the effort to get into track world. We had our customers with us, racing and hanging out throughout the day.
Glenn Hendee won 2nd place for the driver's challenge,
Dennis Harp won 1st place for best 06-07 impreza.
Patrick Ward with his 05 STi had a personal best time of 1:31.233,
Glenn Hendee dropped his lap times to 1:42s from a sluggish time of 1:55 with a tire upgrade,
Gilbert & Ted were lapping 1:43s as well having fun on the track for the 1st time in their lives, and Andre, the crazy russian finally broke into 1:42s with his powerful but no so grippy STi ! A lot of fun lessons learned at Subiefest !

Practice 1 (1:33.578)
Practice 2 (1:31.752)
Time Attack 1 (1:30.608)
Time Attack 2 (1:30.873)
Time Attack 3 (1:31.XXX)

Actions pictures uploaded !!!!!!!

More action pictures & videos uploaded !

Patrick time attack video running 1:32s consistently

JC's crash video

Tomei Expreme Ti Exhaust Test fitment

2010-10-07T09:46:00.000-07:00

We received the new Tomei Expreme Ti cat-back exhaust for Subaru Impreza WRX/STi 02-07 and test fitted on a 05 USDM STi. The fitment is flawless and exhaust sounds crazy. The thin wall effect is obvious, sound is crisp and deep. The total weight is about 9lbs (4.2kg).

We installed the exhaust along with factory catted downpipe. There is an exhaust leak when the factory donut gasket is removed. The 2nd test was with aftermarket hi flow catted downpipe, and there is no leak when it is used with the donut gasket. We also test fitted the prototype Tomei downpipe which has a 3" flat 2 bolt flange which seals with the catback flange perfectly using a crush type 3" 2 bolt gasket.

2005 STi
OEM headers
OEM turbo
1) OEM downpipe with Factory cat
2) Aftermarket Catted downpipe

The list price will be $1280, retailing around $1150, and we expect to see the 1st shipment by January 2011.

Test fit / sound video

Auto Club Speedway Track day Recap

2010-08-24T13:46:00.000-07:00

We had been to Auto Club speedway for Redline Time Attack back in 2008, but the methanol setup on the WRX had given us nothing but problems, and we had to pull out of the track after blowing the oil drain plug because of excessive crank case pressure.

This time, we took the EVO IX to Auto Club Speedway for the 2010 EVO/WRX Challenge and ran it in the fastest group with some socal supercars. Tomei 2.3L stroker EVO IX, also running the typeR Tomei cams, did pretty well against a Noble M400. We finished 3rd in modified class and held onto our 2nd overall position for the 2010 championship.

Noble M400

V6 3.0L twin turbo

425BHP / 2337lbs

GarageGT / Tomei EVO IX

2.3L GT3076R turbo

460BHP @ 18psi / 3180 lbs

Noble M400 vs GarageGT EVO IX video

We also had a chance to take our Supra to the track for the 1st time in 3 years. It ran smooth without any issues..

3.4L stroker SP74 turbo

700BHP @ 12psi / 3200lbs

Supra Test session

GT-R testing: Switzer P800 kit

2010-08-07T10:53:00.000-07:00

We had chance to dyno test a GT-R equipped with Switzer P800 turbo kit. The previous setup was similar to HKS 570 kit, produced about 550BHP. Based on previous stock GT-R dyno runs averaging 425WHP on our DynoDynamics dynometer, we are assuming the drivetrain loss on GT-Rs are about %15-16.

Results:
Stock GT-R: 425WHP (~500BHP)
Turboback exhaust & Cobb AP tune: 464WHP (~550BHP)
P800 & Cobb AP tune: 589WHP (~700BHP)

GT3076R / 3582R Single scroll vs Twin scroll testing: EJ257

2010-07-29T19:26:00.000-07:00

We had chance to test the single scroll and twin scroll kits on our customers' cars.

test 1: GT3582R Tial 0.82 A/R vs GT3582R T3 TS 0.82 A/R

2005 STi
garageGT spec EJ257
OE heads w/Tomei poncams
Tomei Equal lenght headers for both setups, TS being smaller ID
garageGT GT uppipe
Unknown custom 3" TBE
Unknown intercooler setup
AEM EMS MPT tuned
RC 750cc injectors
* tuned for single scroll, twin scroll run was untuned base run. see log for details.

test 2: GT3076R Tial 0.63 A/R vs GT3076R T3 TS 0.78 A/R

2007 STi
garageGT spec EJ257
OE heads w/Tomei poncams
Tomei Equal lenght headers for both setups, TS being smaller ID
garageGT GT uppipe
garageGT downpipe
Invidia racing cat-back exh
garageGT R3 intercooler setup
AEM EMS MPT tuned
RC 750cc injectors
* tuned for twin scroll, single scroll runs wre untuned base runs. see log for details.
* this test was towards gauging consistency, cool downs were limited to 45-60 seconds.

We realized a peak boost drop about 1-1.5 psi on top end, when we switched to twin scroll on both setups. Both setups are capable of reaching similar peak power levels, but the twin scroll setup will be more consistent as it creates a more balanced flow. Twin scroll is also easier on the engine under extreme racing conditions, proved by the hard driven 2007 STi, clocking 10,000 miles on the prototype v1.0 3076R twin scroll kit. Twin scroll should be the choice of tuners for high revving powerband setups, but the piping size, exhaust housing design and A/R is very critical. We highly recommend single scroll Tial v-band housing setups for mid range powerbands, especially engines with factory cams. Also note that AVCS plays a major factor for twin scroll low end powerband. EJ207 JDM/Euro engine is the ideal powerplant for the twin scroll setups. The EJ257 doesnt like high revs as much, so tuners have to be careful with powerband setups as the engine bearings suffer oil starvation on top end and face extreme heat.

We also finalized our test fitments on different chassis for our single and twin scroll kits. The prototypes will be shipped to Japan for production.

Mitsubishi owner's day - MOD 2010

2010-07-13T16:28:00.000-07:00

We attended the show with Tomei Powered USA, displaying our EVO IX MR.

More info about our EVO IX MR on Tomei blog

After prototyping the new Expreme Ti cat-back exhaust on our car, it was time to display the 1st production model in US !

event coverage on socalevo.net

Twin Scroll vs Single Scroll testing: EJ205

2010-07-03T14:05:00.000-07:00

In the search of useable street powerbands, we had a chance to test the following setups on our head mechanic's 2005 USDM WRX.

Variables:
Tomei Equal lenght twin scroll headers/uppipe & Tomei 7760 TS turbo
Tomei Equal lenght single scroll headers/uppipe & Tomei 7760 SS turbo
Tomei UnEqual lenght single scroll headers/uppipe & Tomei 7760 SS turbo

Constants:
Stock EJ205 motor w/60,000 miles
76mm/3" garageGT bellmouth downpipe

HKS carbonTi 76mm/3" catback exhaust

garageGT Spec Grill mount intercooler kit
RC650cc injectors
HKS DLI II
NGK iridium spark plugs
Stock ECUflash tune
Target boost: 20psi on 91 octane (Manual boost controller)
Target AFR: 11.5:1

Equal lenght TS (4x35mm ID to 2x39mm ID)

Equal lenght SS (4x39mm ID to 1x55mm ID)

UnEqual lenght SS (4x39mm to 1x55mm ID)

M7760 SS turbo

Tomei M7760 TS turbo

The below graph is for a 2002 WRX with 112,000 miles, mods are cold air intake and catback exhaust, 193WHP is about 250BHP. You can see tuned vs untuned for referance before we present any numbers for our test.

We installed the Tomei Equal Lenght TS headers/uppipe & M7760 TS turbo and started tuning.. The initial results showed that the twin scroll setup wanted to build 8psi of boost as early as 4000RPMs, but the lack of AVCS resulted in a lazy boost curve, hitting target boost of 20psi at 5600RPMs. Since this is not the hi-rev EJ207 motor, the power curve on top end did not benefit from this setup. The motor & cylinder head design did not flow enough after 6000RPMs with a combined uppipe diameter of 2x39mm compared to 55mm for the single scroll version. Also note that the turbo exhaust housing ports are narrowing down to about 33mm. The best graph we got for the TS setup was run #25 which was done when the intercooler and engine was fairly cold. So we installed the Tomei Equal lenght single scroll headers/uppipe & M7760 SS and contiuned tuning. The next graph shows the comparison between these two setups (tuned vs tuned). Please note the single scroll run was a hot run. The TS setup is making more low end power but it cannot keep up with single scroll on the top end.

Below are the runs for tuning purposes.

#23 cold TS run

#24 hot TS run
#25 cold TS run

Then we switched to UnEqual lenght headers and ran the car on the dyno without adjusting fuel/ignition or boost. For referance, we still have the TS run on the graph.

The UnEqual lenght heades shifted the powerband to the left, the low end power is about same as TS setup. 8 psi of boost is built at 4000RPMs, but the target boost (20psi) is reached at 4900RPMs instead of TS hitting the same boost at 5600RPMs. Thus the UnEqual SS setup makes more power at midrange. Please note that run #35 and #41 are hot runs. When the motor/intercooler was cooled down, the flow characteristics become more obvious.

The Equal lenght header setup pushes the powerband to the top end as expected. The UnEqual lenght headers are awesome at low end. We decided to keep the UnEqual lenght SS setup on the car. Until we get the JDM EJ207 AVCS motor, we are not going back to Twin Scroll. We think the hi revving engine design along with bigger head ports and AVCS are factors for the TS system to work properly. We will be testing M7760 SS vs TS on GRB USDM STi soon. We will also be testing the new upcoming bigger ID TS header. Stay tuned.

Final setup & powerband for EJ205: UnEqual lenght headers/uppipe & M7760 SS turbo @ 20psi

We installed the OE WRX headers & STi uppipe to check the low end powerband behaivor. It spooled up faster but the restriction on top end is pretty serious ! Due to high EGTs caused by OE header pipe diameter, we only tuned the motor for 19 psi range. We ran the car 1 more time on Perrin Equal lenght headers (small runner, same as OE, but longer pipe design), but the top end loss is still there, and the spool difference with Tomei is ignorable. We will be switching to Tomei headers for final setup. The last run is done with the shootout mode. Even the correction factor was 0.98, the car still made more power compared to tune mode, CR set at 1.15.

Before we took the Perrin headers off, we ran the car 1 last time to see what the Perrin headers would do at 20psi. The boost tapered to 19psi and topped at 288WHP.

Final run of this test was the Tomei headers ran at 18psi compared

Subaru Summer Solstice 2010

2010-06-28T16:03:00.000-07:00

Great day for Subaru owners ! the event was in home town, San Diego..

We displayed 11 Subarus, here are some of them....

event coverage pictures on facebook

part 1

part 2

Carbonetic releases single disc carbon blade clutch for WRX & STi

2010-06-25T10:28:00.000-07:00

Our sponsor, Carbonetic, just released the carbon blade clutch for WRX & STi, they are ready to ship !

5spd WRX MSRP $814.80

6spd STI MSRP $888.80

click for special promotion pricing

Tomei-GT project1: GarageGT 3076R Twin Scroll uppipe v.2.1 received

2010-06-20T12:47:00.000-07:00

We received the prototype v.2.1 from Tomei. Pictures speak for the one of a kind twin scroll uppipe.

We are ready for the last test fit !

garageGT EVO IX MR new engine setup

2010-06-14T14:21:00.000-07:00

We decided to boost up the EVO project a bit and did a new engine & turbo setup on our 2006 EVO IX MR to be more competitive at the EVO/WRX challenge. Tomei Powered USA helped us with 2.3L stroker kit and typeR camshafts. To complete the track spec powerband, we picked the stock location GT3076R 0.82 A/R and bolted it on the OEM exhaust manifold (not ported), fabbed up a v-band 3" (76mm)downpipe and modded our intake system for the 4" (100mm) turbo compressor housing. We trusted carbonetic single plate blade carbon clutch & OE flywheel combination against estimated high torque numbers. After initial start up and camshaft break in with MP Tuning in control of the ECU through windows remote desktop, did an oil change and threw the car on the dyno. Tune went smooth with us making pulls based on Mitch's requests and him logging and doing changes at his house in L.A. Target of 400WHP was achieved at 22psi, and our godsent OE radiator did fine (special thanks to Randy @ Ball Mitsubishi!).

Got off the dyno at 1030PM saturday night and arrived to Lancester about 2AM. Sunday track day was awesome as usual, hanged out with our friends and ran the cars hard. It was a pretty nice willow springs day with ambient temps of 90F (32C) and rare breezes. Car ran smooth with zero issues. Performance Friction rotors and race pads did not even have hard time, intake temps allowed us to run 10-15 consistent laps. This power upgrade showed the impovement in lap time by 100BHP with same driver/chassis/suspension/tires. R compound tires are the next and final mod for our EVO/WRX challenge setup. We finished 2nd in mod class with 1.34.672 and took over 2nd place overall.

Thanks to our sponsors; Tomei Powered USA, Carbonetics, Performance Friction and MP Tuning.

setup:

Tomei 2.3L stroker kit

Tomei typeR camshafts

OE exhaust manifold (not ported)

GT3076R .82 A/R turbo & 44mm tial wastegate

garageGT FMIC intercooler

garageGT downpipe & test pipe

Tomei prototype Expreme Ti cat-back exhaust

4" (100mm) intake pipe, HKS 100mm filter & custom airbox

HKS SSQV recirculated blowoff valve

MP Tuning AEM EMS v2 #0001

HKS Hipermax II Pro coilovers & Swift springs

Cusco front & rear sway bars

Performance Friction rotors & race pads

Carbonetic single carbon blade clutch & OE flywheel

18x9 wheels & 255/35/18 Toyo R1Rs (140 trearwear)

Full interior / 3180lbs (1445kg) / OE bumper & wing

engine output:
450 ftlb (62kgm) Wheel torque / 405 WHP
600 ftlb (82kgm) Flywheel torque / 540 BHP

videos:

practice session 1 on pump gas / 18psi (1.2bar) / best time 1:35.500

http://www.youtube.com/watch?v=53c9lAkElwo

http://www.youtube.com/watch?v=j0ncVs4RJPc

practice session 2 on race gas / 22psi (1.5bar) / best time 1:34.830

http://www.youtube.com/watch?v=RnVTykGN-Ks

http://www.youtube.com/watch?v=SS6vWivHNis

time attack session on race gas / 22psi (1.5bar) / best time 1.34.672

http://www.youtube.com/watch?v=pfmHfka9r2o

Tomei Expreme Ti prototoype test fit GDA/B/C WRX/STi

2010-06-10T09:50:00.000-07:00

Prototype v2 was test fitted on 2005 STi and it was sent back to Japan with fitment confirmation. The product is ready for manufacturing ! expect to see a release in fall 2010. This will be the lightest, best performing cat-back at a reasonable MSRP of $1290, retailing around $1150-1200.

Tomei considered our recommendation and used a flat 3" (76mm) 2 bolt flange with no choke at the flange to allow superior flow when used with 3" (76mm) aftermarket downpipes.

Garrett T3 0.82 A/R vs Tial v-band 0.82 A/R testing

2010-05-12T11:28:00.000-07:00

We started the testing with base line pulls on the GT3582R T3 0.82 A/R setup. This was a re-freshed engine with only 1 dyno-break in session with non-synthetic oil. The setup made 388WHP @ 15psi in the morning tune session on fresh synthetic oil.

2005 STi

garageGT spec EJ257
OE heads w/Tomei poncams
GT3582R T3 0.82 A/R

Unknown Equal lenght headers

Unknown custom 2.5" T3 uppipe w/tial 44mm wg (atm dump)

Unknown custom 3" TBE

Unknown intercooler setup

AEM EMS MPT tuned

RC 750cc injectors

morning tune session video:
1 warm up partial throttle pull & 2 full-throttle pulls
http://www.youtube.com/watch?v=3dcROnY3jHE

Then we chopped off T3 flange on the 2.5" uppipe, and used a 2.25" stepper sleeve to accomodate the 2.25" Tial v-band flange and installed the Tial 0.82 A/R housing, did some changes to the downpipe to fit properly and ran the car on the dyno again.

evening tune session video (with bonus Supra tune):

1 warm up partial throttle pull & 2 full-throttle pulls
http://www.youtube.com/watch?v=4-0cB_Md-EQ

The comparison of run #2s on both setups is below.

The next step is fabricating a 2.25" ID uppipe to create a better flow for low end, and maintain peak HP on top end. The third step will be using a Tomei unEqual lenght header (4-into-1) instead of the Unknown Equal lenght header. Stay tuned..

bonus: supra dyno result for 12psi (0.8bar) boost

update - the new v-band uppipe is fabricated, here are measurements and comparison with the old uppipe.

Unkown Equal lenght header collector flange ID: 44.76mm
T3 uppipe lower 2 bolt flange ID: 58.00mm
T3 uppipe ID: 60.00mm
Stepper sleeve ID: 53.00mm
Tial v-band flange (welded on stepper ) ID: 50.00mm

Tomei UnEqual lenght header collector flange ID: 55.00mm (step 3)
Tial v-band uppipe lower 3 bolt flange ID: 55.00mm (step 3) - current testing will be done on 2 bolt 58.00mm ID flange.
Tial v-band uppipe ID: 53.00mm
Tial v-band flange ID: 50.00mm

above is run 2 & 3 for Tial v-band 53mm uppipe.

T3 0.82 A/R & 60mm uppipe vs Tial v-band 0.82 A/R & 53mm uppipe

The last graph is Tial v-band 0.82 A/R & 60mm uppipe vs Tial v-band 0.82 & 53mm uppipe..
The comparetive engine logs will be posted soon.. For now these are the dyno results of the uppipe test...

Tomei-GT project2: garageGT single scroll GT3582R prototype finished

2010-04-29T17:16:00.000-07:00

We are just done with fabricating the new single scroll GT3582R setup on our race car..We utilized the new Tial stainless steel V-band 0.63 A/R exhaust housing. The ID of this V-band housing is 48mm. Tomei uppipe starts with a 56mm iID after the manifold collector and gradually decreases to 48mm for superior flow. The garageGT uppipe bolts onto the single scroll Tomei headers using 3 bolts . We expect to see a crazy low end power curve, but a little worried about the peak HP. The car is going on the dyno tomorrow..We will be comparing this setup to Full-Race twin scroll T4 1.06 A/R exhaust housing. Already excited ! stay tuned..

So we tested the setup today, results were impressive !

old setup:
Full-Race twin scroll GT3582R 1.06 A/R
garageGT spec EJ257 shortblock

DPR EJ257 heads w/Tomei custom cams
MPtuning AEM EMS
550BHP @ 22psi
GrupN 1-4 dogbox / Cusco tarmac gear / Cusco LSDs
Carbonetic twin plate carbon clutch

We only changed the exhaust manifold to a Tomei unEqual lenght single scroll manifold, we swapped the turbo hotside to the new Tial V-band 0.63 A/R housing. Nothing else was changed. We achieved an incredible bottom end with this new housing, dyno charts are below. The torque gain at the wheels was 126 ftlb @ 4300 RPMs. Also peak torque was pulled back to 4300RPMs from 5600RPMs peak for the old setup. Turbo spool is 500 RPMs sooner with better peak HP ! very unusual but impressive ! This is a torque monster, very promising for upcoming races..This kit will be in production soon, stay tuned..

Final output:
441WHP/456ftlb torque @ 22psi (MS109)
~ 580BHP/84kgm torque @ 1.5bar (MS109)

dyno session videos
http://www.youtube.com/user/garagegt#p/a/u/0/okzBDZtrxZA
http://www.youtube.com/user/garagegt#p/a/u/1/PVolbBoRchc

track video for old setup, 1:57.188 @ buttonwillow CW13
http://www.youtube.com/watch?v=x8K_Heyqwww

Tomei Expreme Ti EVO X dyno testing

2010-04-15T08:28:00.000-07:00

Base car: 2008 EVO X GSR
Mods: intake. intercooler piping, Hi-Flow cat, 3" Cobb cat-back

with dual exit canister
Boost: 25 psi
Baseline pull: 309 WHP

test1 (hi-flow cat + cobb exh VS hi-flow cat + tomei exh)
Aftermarket (cobb 76mm) dual exit exhaust created more

backpressure than the single exit (tomei) exhaust.

Therefore, dual exit makes more bottom end power

compared to Tomei exhuast. But Tomei Expreme Ti

makes more top end power, about 7WHP (9.3 crank HP)

at 6000RPM range. Also note that the engine was

tuned for Cobb exhaust.

test2 (oe cat + oe exh VS tomei test pipe + tomei exh)

at 25psi boost level, tomei test pipe & expreme Ti makes

27WHP more power than the OE cat & OE catback combination.

test3 (hiflow cat + tomei exh VS tomei test pipe + tomei exh)
you can see the the test pipe starts making top end power after

5000RPMs. But the bottom end is about the same as the hiflow cat.

Maybe we should look into the bottle neck on the test pipe,

it might be restrictive.

test4 is to see the silencer affect.

video: http://www.youtube.com/watch?v=SItZOzBMbJA

Tomei-GT project1: GarageGT 3076R Twin Scroll uppipe v.2.0

2010-02-20T09:06:00.000-08:00

We completed the v.2.0 of the Tomei-GT 3076R Twin Scroll turbo kit. Prototype will be sent to Japan this week for production. This kit is designed around the Tomei Equal lenght headers, next projects are single scroll 3076R/3582R and Twin scroll 3582R.

Tomei ARMS 7960 turbo testing & tuning

2010-02-19T14:00:00.000-08:00

We installed the new Tomei ARM 7960 turbo upgrade for Lancer EVO VIII & IX.

Our test car is 2006 EVO IX MR.

Baseline:
OE EVO IX turbo @ 22psi

OE airbox w/panel filter

o2 housing and 3" (76mm) exhaust piping

AEM EMS tune

The only change we did was installing the Tomei turbo. It spools 100RPMs later than the OE turbo, it makes about 35WHP more HP and 40lbft more torque at 4200RPM range. Also reaches 300PS (about 230WHP) level at 3900RPMs, about 400RPMs sooner than the OE turbo. 400PS (300WHP) level is achieved at 5600RPMs which is 500RPMs quicker than the OE turbo. Great turbo for responsive setups !

http://www.youtube.com/profile?user=garagegt#p/a/u/2/TMappyaoCjA

http://www.youtube.com/profile?user=garagegt#p/a/u/1/JGorxZLuqO0

Battle with 997TT

http://www.youtube.com/profile?user=garagegt#p/a/u/0/w41uGF5fMfE

Proper intercooler choice

2010-02-12T10:15:00.000-08:00

We had a chance to tune a 2008 STi with the following mods;

OE intake

OE turbo

Tomei single scroll unequal lenght headers

3" turboback exhaust

"Unknown" front mount intercooler kit

The intercooler was oversized for the factory turbocharger, about 4 times the volume of OE intercooler. Restrictive 2" (50mm) intercooler piping along with unknown efficiency of the core resulted in 6-7 psi pressure drop. Throttle response did not exist, and it did not make much power, topping @ 248WHP/330BHP. The blowoff valve was also removed, probably an attempt to help with response, but would have resulted in a turbo failure.

We decided to install the factory top mount and blowoff valve, and re-tuned the car @ 265WHP/353BHP. We gained as much as 32WHP & 48ftlb of torque at 3000-3500RPM range.

Tomei Power channel press release

2010-01-27T09:37:00.000-08:00

Tomei Power channel #84 releases Superlap Battle 2009 coverage for TomeiGT project.

http://www.tomeiusa.com/webcatalogus/index.asp

Tomei-GT WRX Super Lap Battle "action" photos

2009-11-19T18:19:00.000-08:00

We received the action pictures from vanhap photography today..

enjoy !

Tomei-GT WRX takes 1st place for Street AWD class at Super Lap Battle 2009

2009-11-12T20:53:00.000-08:00

garageGT WRX 2009 racing schedule had ended with Subiefest, and we prepared the WRX for the new Tomei-GT special project. Tomei helped us with Cusco suspension and we brought Eiji "Tarzan" Yamada into the equation to make the garageGT WRX competitive. The new Tomei-GT WRX driven by Tarzan Yamada took 1st place at Super Lap Battle finals with a 1:57.188, almost setting a record for Buttonwillow street AWD class.

Tarzan went through our front brake pads unexpectedly fast and we had to send him out with %10 pad material left trying to beat the clock for the 1st place street class AWD. Tarzan had lapped a 1:57.805 right behind HBspeed/Cobb/Robispec EVO X @ 1:57.630 and Stoptech EVO X @ 1:57.699 before the final session of the day.

Tomei-GT WRX ran a 1:57.188 with the help of 2psi extra boost to compansate for early braking and took 1st place for 2009 Super Lap battle finals at Buttonwillow raceway.

Setup:

garageGT spec EJ257 shortblock

DPR EJ257 heads w/Tomei custom cams

garageGT spec GT3582R turbo setup

MPtuning AEM EMS

550BHP/3000lbs

GrupN 1-4 dogbox / Cusco tarmac gear / Cusco LSDs

Carbonetic twin plate carbon clutch

Cusco/Tomei Zero3 coilovers

Yokohama Neova 255/35/18

event results

event coverage by speedhunters.com

VIDEOS:

practice sessions:

http://www.youtube.com/watch?v=PhcwzwPNgSs

http://www.youtube.com/watch?v=AB955S-0jw8

run group qualifier

http://www.youtube.com/watch?v=9EZXFV54P1I

http://www.youtube.com/watch?v=B2r8NHtogTI

http://www.youtube.com/watch?v=t3OuDwz6rtw

time attack session 1

http://www.youtube.com/watch?v=z7Oxva2eUx8

http://www.youtube.com/watch?v=OweNlo4phL8

time attack final session / winning lap 1:57.118

http://www.youtube.com/watch?v=x8K_Heyqwww

Driving to the track, we received a message from up above !

Tomei-GT WRX is ready for testing..

Redshape provided the extra boost with his new song "garageGT"...

http://www.shapedworld.com/

http://soundcloud.com/2sheep4coke/redshape-garage-gt

At the end of the practice day, we fed Tarzan really good getting ready for Time attack day..

And new OEM axle came in from South Coast Subaru @ Costa Mesa, replaced the broken Driveshaftshop rear left axle..and got ready for time attack session !

Patrick's STi with Tomei Poncams

2009-11-04T08:32:00.000-08:00

We got Patric's new track project STi with no motor, bought a used complete longblock, rebuild it with wiseco pistons, pauter rods, new crank, new bearings, used Tomei poncams with NO port/polish work on the heads. Added some safety pieces such as arp headstuds, cosworth oil pump, cosworth timing belt tensioner, cosworth oil pan baffle, oil cooler etc. Kept the 35R & intercooler setup same as before.

Went through 3 heat cycles at idle, put it on the dyno yesterday made 0-3 psi pulls to break it in.. We are running AEM plug & play EMS.started with %25 throttle low boost pulls.. made about 300WHP @ 9psi / %50 throttle final results before we ran out of injector duty cycle: 480WHP @ 18psi 110 octane.. we lowered it down to 15psi, made 409WHP..

Since then, car did 6 track days with this setup running with absolutely no problems.. The last one was at springmountain. Tomei Poncam powerband !

dyno tune session

Spring Mountain 15psi run

Subiefest 2009

2009-10-19T07:47:00.000-07:00

Subiefest 2009 was at willowsprings raceway, CA. There was a lot of subarus !!! Everybody had a fun day..

Highlights:
- Car show
- Time attack
- ESX drag car demo
- Crawford drfit car demo
- Track caravan (500+ subarus)

Some pictures of the day..

GarageGT WRX had also a good day despite the warn out tires..

Best time: 1:30.207

Track videos:

Tomei-GT 3076R twin scroll kit tested...

2009-10-08T21:38:00.000-07:00

Our new prototype TGT 3076R twin scroll turbo kit for EJ257 results were impressive. Setup was also be tested at subiefest 2009 at willowsprings raceway, CA. Racing instructor / ex porsche racer Otto (ottosvenice.com) was very impressed with the response after driving the car for a morning time attack session. He said "this car can put you in trouble!".

test car: 2007 STi
Built 2.5L shortblock OE heads w/Tomei poncams
Tomei equal lenght twin scroll headers w/TGT 3076R
GGT R3 intercooler 750cc RC injectors & AEM EMS PnP by GGT

Results:
350TQ / 340WHP @ 18psi / 91 octane
420TQ / 396 WHP @ 22psi / 109 octane

Dyno run video

Low boost Road test video

Hi boost Road test video

COBB Accessport testing on 2009 WRX

2009-08-04T09:21:00.000-07:00

Below is the dyno chart for a 2009 WRX running on Cobb AP. As clearly seen, the cold air intake causes a lean condition and is very dangerous to run on the stage 1 & 2 maps. Its needs fine tuning via the 'street tuner' software.

The Real Monster: GT3076R 2009 WRX

2009-07-13T11:45:00.000-07:00

We finished the 91 octane tune on the 2009 WRX GT3076R setup. We are on stock engine, and transmission pushing 18psi, making 316WHP / 319TQ. After upgrading the transmission, we will tune for race gas and run about 24psi targeting 400WHP on stock engine. The car is very responsive, full boost is about 3500RPMs. Engine response over 4000RPMs is amazing !

Setup:
GT3076R single scroll turbo 0.63 A/R
Tial 44mm wastegate
HKS SSQV blowoff valve
Custom uppipe & downpipe
Tomei unequal-lenght headers
Custom 3" exhaust
Custom intercooler w/reversed intake manifold for best response
Custom oil cooler Koyo radiator
Custom fuel system w/RC750cc injectors, walbro fuel pump
Carbonetic twin plate carbon clutch
Vipec EMS - now plug & play !

Dyno run & road test video

EVO X pushed beyond 600BHP

2009-06-30T18:19:00.000-07:00

We completed initial testing & tuning for the EVO X GT3582R AEM EMS setup. Next is heat isolation, airbox fabrication, and cosmetic finish for piping. We will also need a 6piston big brake kit asap!

AEM 1050 box was used as piggback running fuel/ignition/cam timing/boost control. Stock canbus ECU is controlling drive-by-wire and everything else.

Setup:

GT3582R T4 twinscroll turbo kit

Cosworth cams

Stock bottom end

3" turboback custom dual titanium exhaust

Ultimate racing walbro fuel pump kit

RC750cc injectors

AEM EMS - NO MAF!

We boosted 15psi initially, made 352WHP on 91 octane. But pushed it to 385WHP @ 19psi and finalized pump gas / low boost tune.

We achieved 465.9WHP @ 24psi boost on race gas! This is over 600BHP assuming %25 drivetrain loss. We will see how long the motor holds under extreme race conditions, this car will be doing time attack at 2010 season.

Videos:

track tests will follow, stay tuned !

Redline Time attack round2 Willowsprings May 30-31 2009

2009-06-01T14:01:00.000-07:00

We are back from the Redline Time Attack round2 at Willowsprings, the big track!

After breaking the ring & pinion at round1, Kearny Mesa Subaru setup the new rear end and it was pulletproof! We had exhaust manifold issues but managed to place 7th in the street class. Before the last Time attack session, we were only 1.5 seconds away from 3rd place, rushed to weld to cracked manifold with the help of Fontana Nissan but didn't make it at the grid on time..

Here is a summary of the 2 day event;
Satuday practice session1 - 1:38.750
Satuday practice sesson2 - 1:36.710
Saturday practice session3 - no times due to exhaust manifold leak
Sunday practice session2 - 1:36.450
Sunday Time attack session1 - 1:33.749

Results

We missed 3rd place by 1.2 seconds.. We could have ran 1:31s with more practice, this was our 1st time on this track. Owner/Driver Cenk has a total of 6hrs of track time experience, with more practice we should be more competitive! Stay tuned..

Thanks to our sponsors; Kearny Mesa Subaru, DPR Racing and C-West.

Videos:
Saturday practice session3 - no times due to exhaust manifold leak
Sunday practice session2 - 1:36.450
Sunday Time attack session1 - 1:33.749

GGT Front Mount intercooler kit for 2008 STi now available

2009-05-21T17:12:00.000-07:00

Our new front mount intercooler setup is now available for the 08 STi.

The intercooler core is from Precision turbo and rated at 575 crank HP. ATP turbo supplies aliminum piping, silicone couplers & Tbolt clamps and we do fabrication & welding in house. Powder coating is optional.

Key features:
- Anti-clockwise air flow; charge side piping always stays cool
- Mostly 45 degree bends; Turbo lag compared to top mount intercooler kit is only 200RPMs
- Stealth look; best for those who wants to fly low

Notes:
- Half size battery must be used; optima yellow top recommended
- Bumper beam must be removed or modified to fit the core; beam modification is recommended
- Does not come with blowoff valve flange; customer must weld flange of choice

Dyno sheet & more info

Retail price: $1400

options:
- Brushed raw aliminum finish: $100
- powdercoating bright red or black: $250
- HKS blowoff valve flange welded: $50

Please allow 7-10 business days for delivery, all kits are special order.

Contact:
5155 Convoy St.
San Diego, CA 92111
Tel: 858-505-8030
Sales@garagegt.com

2008 STi Test & Tune with Tomei ARMS 7760 turbo, Custom FMIC kit & Cosworth intake manifold

2009-05-16T17:34:00.000-07:00

We had installed an AEM EMS back in Sept. 2008 on this 2008 STi. Customer asked for more power with minimal turbo lag and we recommended a Tomei ARMS 7760 turbo along with RC750cc injectors & re-tune. Below is the dyno graph for both setups. We achieved 306WHP peak HP compared to 274WHP on OE turbo both running 17psi boost. The spool characteristic of the ARMS 7760 turbo is similar to OE but maintains 17psi at the redline.

After looking at the air intake temperatures (sensor located right on the Top mount intercooler), we decided to switch to a front mount intercooler as the temps climbed up to 190F. When cold, sensor was reading 70F, by the end of the run it was at 170F-190F range. We custom fabricated a front mount intercooler kit after looking at the options that were on the market. We managed to cut some corners and the turbo lag compared to TMIC was only 200RPMs!!

We gained 55ftlb torque & 50WHP at 4000RPM (see above dyno graph), and 9WHP peak HP and hit 315WHP.

Intake temperature issue was also solved (the sensor is now right on the charge pipe 2" away from throttle body) with minimal turbo lag.

Upon delivery of the car, customer was not happy with how his OE intake manifold looked compared to the bright red intercooler piping, decided to order a Cosworth intake manifold and have it powdercoated bright red to match piping. After install, we had to retune the car, it ran richer unexpectedly, and we had to take about 8-10% fuel and the power above 3500 RPM dropped about 20-25WHP. Cosworth manifold would have made extra power if we were running a GT30R or bigger turbo along with headwork. Looks like this is not a good choice for OE or smaller bolt on turbos.

One thing to look at is the 225WHP (300 crank HP) mark on the dyno charts. Subaru USA states car makes 305 crank HP @ 6000RPMs.

our 225WHP tests:
OE turbo + TMIC 5000RPMs
Tomei turbo + TMIC 4300RPMs
Tomei turbo + FMIC 3700RPMs
Tomei turbo + FMIC + Cossy int.manifold 4000RPMs

2009 WRX Test & Tune

2009-05-14T15:10:00.000-07:00

We had chance to work on a 2009 WRX and the results are amazing. Subaru did a great job on this new model. Its a lot different than the 2008 version. Rated at 265HP, the new WRX is running a STi turbo. Combined with 2.5L engine, its a response monster.

Setup:
Tomei unequal-lenght header & uppipe
Invidia downpipe
Agency Power exhaust
injen intake
Perrin Top Mount i/c
HKS blowoff valve kit
Custom oil cooler
ECUflash tune

30mph-145mph Test

http://www.youtube.com/watch?v=ZGjxlTfkowE&feature=channel_page

We had done this setup back in January 2009 when the car had 1200 miles, now customer wants more power after putting another 2500miles on it.

We will be fabricating a GT30R turbo kit along with a custom intercooler setup. Stay tuned!

Gauge mounting solutions for 08+ Impreza WRX/STi

2008-12-27T14:38:00.000-08:00

We did some custom gauge pods for the 2008 WRX & STi.

Came out pretty clean!

Tomei to release EVO bolt on turbo

2008-12-10T15:51:00.000-08:00

We just received the new Tomei Arms 7960 turbo for Mitsubishi Lancer EVO VII & IX. We will release techincal data and dyno results once the turbo officially hits the market in January 2009.

Very excited to see results after testing the 7760 turbo for the Subaru Ej20/25. We had full boost at 2400RPMs and it was stable all the way to the redline producing 320WHP @ 18 psi.

Stay tuned!

GarageGT WRX new setup test & tune at Buttonwillow

2008-09-30T09:37:00.000-07:00

We tested our new setup at Buttonwillow raceway CW13. Best time was 2:05.201.
Air intake temps at the intake manifold were about 120F, coolant temps were upto 220F and we had to take it easy towards the end of the day.
Car runs consistent 2:06s on 245/40/18 street tires, looks like 2:02s are doable. Race tires should put us under 2min mark.

Thanks to;
Kearny Mesa Subaru for the EJ257 shortblock,
And DPR racing for the amazing headwork and custom cams!

videos:
http://www.youtube.com/watch?v=xPzRVfC_ZX4
http://www.youtube.com/watch?v=zeeF6Y8wQX0
http://www.youtube.com/watch?v=5lkAypssb90