GT Motorsports: GTM Stage 2 TT G37 Coupe, GTM 3" Cat-Back, GTM Flash, 611RWHP/474RWTQ
 

Christian has given us the honor to work on his twin turbo G37 project and we are very happy to do so. This car made it's way down to our shop from Maryland and we went to work right away so we can get the car back to its owner ASAP. We are very pleased with the results to say the least and are sure Christian will be as well. This car puts down serious power for a stock block and it feels great, definitely one of the better G37's we have turned out. (Doesn't hurt that this was a 6MT, all the others have been A/T so far :)) What makes this car unique are the choice of the components Christian choose from; the 3" down pipes/external waste gates, down to the OS Giken clutch, really helped us accomplish our 500rwhp goal.

Although our goal started off at 500rwhp, the car made that very easily. We made a phone call to the customer to see if he wanted to go past the 10PSI mark, he gave us the OK and we cranked the boost up a little more. At only 12 PSI we broke 600rwhp and decided to stop at that point, not to mention the fuel system is pretty much at full capacity around this power level.

The combination of the larger displacement (3.7L) and VVEL really allow this engine to make some serious power with minimal boost, also the higher compression is a factor. Drive ability is STOCK, the car feel as it did when it came in but with double the power output. These new lines of VQ are truly amazing and are great boost candidates.

As you can see from the pictures this car is equipped with the ICC, and it is still fully functional with our turbo kit. The GTM ICC Supplement kit relocates the ICC as shown below and it retains full functionality; although it must be re-calibrated via the Consult III. Only this car we also did some custom molding of the bumper to achieve that OEM look which is not included in the standard kit.




GTM Stage 2 Turn-Key Twin Turbo System
GTM 3" Turbo Cat-back exhaust
GTM 3" Downpipes w/ External waste gates
GTM ICC Supplement relocation kit
GTM Stainless Braided Clutch line
GTM ECU reflash via Osiris
OS Giken Twin Plate Dampened clutch/flywheel kit
Blitz SBC Boost Controller
PLX Devices Monitoring System

:bowdown::bowdown:
talk about sleeper!!

cant wait for the z version to be finalized

that's really neat that you made the ICC fit in the fake side grille....really nice touch


but wow......600+ hp and 470+ lbs...very serious
time to upgrade those stock BBK's


have any dyno vids of the 12 PSI run ????

We have videos coming just for you guys, we know how you like your vids! :D

-George
GT Motorsports

just curious, could the VQ engine be pushed even more ??
with stock compounds, like block and pistons....etc

Sweet jesus

Hot damn!!!!

Nice build guys

in for updates!!!

damn......time to get a 370 up there. thats awesome. ridiculous power. whats the ICC thing in the front bumper?

the ICC is for cruise control

thats hot

The 370 is next ;)

Expect similar results.

-George
GT Motorsports

Updated with video!

YouTube - GTMPOWER.COM Stage 2 Twin Turbo G37

-George
GT Motorsports

Very nice!!!

Nice work guys! That is some sick power you guys are making.

+1 on the ultimate sleeper. If that car rolled up on me and he said he had 600 to the wheels I'd laugh my *** off.... then he'd rip me a new one!

Wow..... 600 hp!

A few technical questions: 1) the low boost dyno runs say 93 octane. Ive never seen anything but 91 at normal stations in Cali. Did you mix 91 with a 100 octane botique fuel to get 93? 2) the runs cut off at 7200 rpm. Did you lower the fuel shutoff rpm? If so, why? 3) The a/f ratio seems to be creeping up in the higher rpms, but is doing it on low boost and high boost runs. Is this the fuel system maxing out, or did you program it that way? And 4) since engines are just air pumps, to double your power you need to double the air in and fuel in... So doesn't that imply you need at least 1 bar of boost?

Thanks,

-Phim

The car was from Maryland, so no problems with fuel quality there. Also, it's not the pressure that matters, its the cfm.

amazing! Sleeper or not that G needs wider rubber to make use of all that power:tup:

Good news = no ICC issues over here:p

holy shat man!! sweet numbers for how little you have done... mmm ... methinks a TT is in the future... cant wait to get my hands on a reliable DD and then skys the limit :)

Thanks for the kind words guys, this should give you an idea of what to expect out of your 370. Altough I would keep it around 500rwhp or less for higher reliability.

Only time will tell how well these engines hold up, although so far they are doing great!

-George
GT Motorsports

Hey George I look forward to having this kit on my Z!!! Me and Sharif have some great plans and we will be shooting for a magazine cover :D hopefully with your system and 600+ hp as well ;) Keep us updated :D also check out your exhaust GB thread I have a few questions over there :D

GL

Mike

wow looks so clean and inconspicuous.. 0.0

True, but I would continue laughing after seeing all the badging on the back of the car.

Quick question. The 3.5 couldn't take more than about 480rwhp before having to build the motor. What makes the 3.7 any stronger?

Wow super nice! Just a couple questions. What fuel pump and injectors did you use? Also, what are using adjusting air/fuel ratio's?

That would be true in the ideal otto cycle. However, with all the work they did with the car they improved the VE of the engine allowing them to achieve double the power with less than double the absolute pressure.

Beautiful! I love the way it sounds... not ricey or raspy, but it brought back the old feeling of turbo cars in the early '90s. When that happens, I'll jump in my dad's '90 Z32 twin turbo.

Anyone?

I don't think anyone has popped an HR/VHR motor yet with this kit so no one knows how much they can take. Perhaps you are thinking of the threshold for the DE engine? The newer HR/VHR internals are significantly stronger than the previous DE internals. In addtition, the torque curves are also significantly different between the two ... less torque out of the HR/VHR also helps engine/drivetrain life.

Even though the VHR was tuned to over 600+ WHp, it will still be recommended to keep the boost down for increased reliability.

Keep in mind the biggest factor in engine life is HOW the car is driven. A motor can be tuned to 1000 WHp and last quite a long time if the driver is not boosting from light to light.

IIRC, Sharif@Forged already dissected the motor from a G37 and compared various components to the HR and DE. Such components were strengthened to handle the higher revs.

people, sorry for my ignorance, but what is this????

http://i313.photobucket.com/albums/l...O/P1080062.jpg

I believe that's the advanced warning sensor to prevent you from following too close.

It is the sensor for the Intelligent Cruise Control (ICC).

ok!!!, thanks man

yup, it used to be in the center of the center grille, but the rad and pipes made it move to the left grille...it had to be recalibrated also.

ICC just applies the brake when cruising

I might have missed it on this site...whats the price?

turn key stage 2 = $9495.00 msrp

^^ not bad, for all the stuff you get

does that included installation from them??