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EQT GT3071R Upgraded Turbo GT-R

Posted by Ed Susman on

This is a 2010 GT-R that we did a mild build on over a year ago. Back then the customer wanted to run 9's on the stock turbos so we built a nice strong block and left the heads untouched. The car ended up running a 9.8 on that setup with stock turbos. Now the customer decided it was time to get some more power into the car with a mild turbo upgrade shooting for about 800whp on our dyno while retaining great response and drivability. 

 We took this as a prime opportunity to try out our soon to be released EQT GT3071 stock manifold turbos. These turbos use the stock manifolds and housings for discreet and simple installation and a great price point. The housings are CNC machined to fit a genuine Garret GT3071R ball bearing cartridge and wheels. This will be our entry level turbo upgrade for the GT-R, so it was very aporpriate to test it on a nice mild setup like this.

We left most of the setup exactly as it was on the stock turbos and added our turbos along with supporting fuel mods. Here is the complete setup as it sits:

EQT Built Shortblock (Manley Pistons and Rods, Balanced and Blueprinted)
EQT GT3071R Stock Manifold Turbos with 18psi Wastegate Actuators
Shep Transmission
ETS Street Intercooler Upgrade
Ported Stock Intake Manifold and Throttle Bodies
SBD Turbo Inlet Pipes and Intakes
SBD Downpipes, Midpipe, and Exhaust
ID1700x Fuel Injectors
T1 Fuel Rails, Lines, Flex Fuel Kit
Visconti Billet Fuel Pump Basket with 2 Walbro 450lph pumps
Visconti Fuel Pump Hardwire Kit
AMS 4 Bar MAP sensor
GotBoost Speed Density Kit
EQT Custom Tune Using Cobb AccessPort
** Stock Heads and Cams
** Stock Intercooler Piping and BPVs

We tuned the car on E85 hitting 29psi peak, tapering to 27psi by 7500RPM. Even with the really simple setup and potential restrictions, the car put down an easy 815whp on our dyno with the low reading mustang dyno calibration. On the native Dynocom calibration, that came out to 959whp! This is really incredible power for completely stock heads and cams. We were very pleased with the results and how well the turbos spool up. FYI, we are running the car in RWD only on the dyno which impacts the spool of the turbos. On the road they spool about 500RPM sooner!

Here is the dyno chart on E85 (Mustang Dyno Calibration):

And here is the same chart using the native Dynocom calibration which reads similar to Dynojets:

And a dyno video:

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