GT Motorsports: G37S VHRTT, GTM HR Turbo Kit, FCon VPro, Stock Block Testing

[Slidefox]

With much anticipation we have finally made some time to work on our GTM TT G37S. These are preliminary numbers at just 8 psi of boost, very impressed so far to say the least. We are making good power on the top end with a flat torque thanks to the VVEL, although it can be tricky to work with, we have overcome quite a few challenges (with the help of the CONSULT III) to keep the car happy and make everything work well together.

We will keep posting more updates as time permits, looks like you guys will be seeing a 600rwhp stock block GTM TT VQ37VHR pretty soon here

Specs:
2008 Infiniti G37S Coupe

VQ37VHR w/ VVEL
Completely Stock Block
Blitz SBC Boost Controller
850cc Denso Injectors
Walbro 255 lph fuel pump
JWT FMU
HKS FCon VPro Standalone EMS
GReddy EVO TT exhaust
Innovate Dual LC-1 wideband feedback
GTM HR Prototype Twin Turbo System featuring:
-Dual Core, Bar & Plate Intercooler
-Twin Garret GT2861RS Water cooled Ball Bearing Turbos
-Twin 38mm TiAL external waste gates
-3" Down Pipes
-Mandrel Bent Stainless Steel turbo piping

8 PSI, 93 Octane



Overlay of stock power vs. stock block twin turbo power:

Rod Comparison, from left to right: HR Rod, VHR Rod, and DE rod. As you can see the VHR has the strongest rod, we have already made 568rwhp but had to stop due to a coupler popping off and boost controller issue. We feel this engine will take 600rwhp no problem.

A few pictures of the project:

Update: 3/4/2008 - New dyno video

Clutch Slipping:

Did some more tuning on the car today, we are currently at 549 rwhp with 502rwtq and the stock clutch started to slip, we were hoping to break the 600rwhp mark, so far the car has demonstrated awesome performance in all aspects, very stable, and very responsive to boost. All these runs and boost have not seemed to phase the car in any shape or form, we will confirm when we tear down the engine. Since the clutch will have to be replaced at this point, we are going to proceed to the second phase of testing (4.5L Stroked N/A high compression engine) we will see what we can get out of the engine in N/A form with no boost. After that we will test our 4.5L Stroked turbo car with twin Garret GT35R's and some other goodies

-George
GT Motorsports

[RCZ]

wow, thats some pretty serious power for a stock block. I am very impressed. How does the response feel on the low end? Any loss in driveability at low speeds?

I'm liking the amount of power too. Are you going to be selling something similar for the Z? Any guesstimates on the price range? I'm very interested

[FABG37]

thats some crazy power, with an upgraded block this motor + twin turbo this engine can approach 700+ horsepower it looks like

[AK370Z]

wow! That's amazing! Possibility with the VQ37VHR is endless. With many new technology coming out, it'll only be easier to get more HP out of engine. Can't wait to see the first TT 370Z. Hopefully it'll be one of our members

[RCZ]

Yeah, being first is risky though

[Slidefox]

Originally Posted by RCZ

Yeah, being first is risky though

Some has to lead the expedition...

[ultrablue]

Very impressive!

[|samu]

Trolls from the beginning.