After completing our first GT-R on E85 tuning about a month ago we were very curious to see what the effects of E85 would have on a stock turbo GT-R. It's easy to assume the gains are significant when looking at the results of a GT-R with turbo upgrades. However, would this change in fuel really have that great of an effect on a stock turbo GT-R? We needed a test car to try this out on. The test car for this project was my very own 2009 GTR. It's a big sacrifice, but someone's got to do it :lmfao: We previously made 491 whp on 93 octane on our heartbreaker Dyno Dynamics dyno. For those of you not familiar with our dyno, a stock GTR usually baselines around 380-390 whp. We were blown away by the results. We were able to make
525 whp and
578 wtq at 20 psi boost. This was about
35 whp gain and
85 wtq gain with no added modifications, just switching from 93 octane to E85. It's safe to say the turbo's are maxed out and are just blowing hot air up top. The power gains were significant down low, but power dropped off up top as the turbo's had nothing left to give. A set of intakes, IC's and IC piping is in the near future for this GT-R, but we don't expect much more power out of her until the turbo's are upgraded. Pictures and Dyno graph's are posted below. We're happy to report another successful project here at Forged Performance :cheers:
Modification List:
Cobb AccessPort
AMS 90MM Catless Downpipe
CBRD 90MM Y-Pipe
Mines Silence VX Pro Titan II Exhaust
Mines Titanium Suction Pipe Kit
Forge Actuators
Injector Dynamics 1000cc's
HKS M-Series Spark Plugs
Walbro 255 Twin Pump Assembly
E85 Fuel
Ryan's Forged Performance R35
On the Dyno!
E85 Dyno
E85 Dyno (red) vs 93 Octane (gray)
Ryan