SL65 AMG Dyno Twin Turbo V-12 Relentlessrpm.com
The graph is a little bit messed up because the max power is in 4th gear, and because the top of 4th is above 155mph, the car limited itself, thus causing the drop in power in 4th gear. Despite this, the numbers were still: MaxTQ=648.3ft/lbs and MaxHP=approximately 440whp. Once we get the limiter removed, the car should put down 500 hp and 700+ft/lbs of torque.
Renntech SL65 vs Ferrari 458
The Ferrari is stock. My SL65 has the stage three Renntech package. That's the ECU, TCU, wheels, tires, suspension module, Exhaust, toe links, Intercooler pump upgrade, and carbon fiber airbox upgrade. It's making 730hp and 930tq. We had two races. The first one was from 40-130 and the Ferrari didn't hear my three honks. He took of a bit late letting me get out front early in the race, and that's where I stayed. During the second race, I got all the way into the throttle a little too early resulting in massive tire spin to about 70mph. By then, the Ferrari was way out front, and all I could do was sit back and watch. Overall, in a straight line, we both decided that this was a pretty even match up. In my opinion, the slight nod would probably go to the 458. BTW, if you haven't smelled the interior of a 458 yet, it by itself is worth the price of admission!
MERCEDES SL65 AMG BLACK SERIES ON DYNO
Recent Dyno-Comp tune, the Mercedes SL65 AMG Black Series. Dyno-Comp is located in Scottsdale Arizona. For more information view the blog post here: http://Dyno-comp.com/blog/2010/09/merce des-sl65-amg-black-series-Dyno-run/
Mercedes Benz SL65 AMG on the dyno
Final numbers: 660 horsepower and 872 torque at the wheels. Using an 18% correction for RWD and auto trans, the numbers are 779 horsepower and 1,028 ft-lbs of torque at the crank! Free flowing downpipes, muffler delete, 3" intakes, Renntech cooling package, ECU and TCU tune.