We just reported that Boost Logic currently has the highest horsepower GT-R, but SP Engineering isn’t far behind. Boost Logic made a very impressive 823 wheel horsepower, but SP Engineering made 816 wheel horsepower, and 770 ft lbs of torque. SP Engineering could have surpassed the 823 made by Boost Logic, but they had problems with a slipping clutch.

According to SP Engineering:

At 1.7 BAR, we’ve reached 816 ALL wheel hp / 770 Torque from a baseline of 395-400. As our previous setup 4-5 months back we’ve accomplished 780 All wheel hp on Q16. This proves the Greddy turbo kit produces great numbers from 3500 RPM at 360 AWHP, 4000 RPM at 520 AWHP and so on. Massive turbo response and power all the way up to 850 awhp is what you will receive from this kit. With the help of aftermarket cams, stroker kit, etc, power levels will definitelly be greater.

We wouldn’t leave you without a video of this beast, so check it out:

Here is a dyno graph of this run:

Engine Modifications:

Greddy Twin Turbo Kit
Greddy Intercooler
CP Pistons With Coating (Standard Size)
Carrillo Rods
1000cc Injectors
SP Engineering Custom Dual Fuel Pump 255 LPH + FPR
Titek titanium race mid pipe
Titek titanium race exhaust
Haltech ECU

Transmission: Stock

[Source: NAGTROC.org]