i am planning on trading in on a 06 LBZ, and i was lookin at the ppe xcellerator for it and it says that it will be 300hp at the crank, how much will that be at the real wheels??, and will that tune be enough to smoke up a 2 lane highway???--Thanks
Here is information that I gathered and I placed on a different post. Generally speaking if a manufacturer posts HP/Torque levels at the crank, you will loose 25 - 30 % of the power through the drive train. I am not a mathematician, but I have compiled some numbers from several companies and computed them out for Rear Wheel Horse Power and Torque Levels. These are not exact, but are very close. I will resubmit the post here.
I have been doing a lot of research on tuners. Some rate their HP/Torque at the crank or flywheel, and others at the rear wheel (RWHP). PPE from everything I have heard and seen appears to be a very nice tuner as reflected by many on this forum. They post their figures at the crank or flywheel. They state you lose about 25-30% of the HP/Torque through the drive train. Diablo Sport reflects their HP/Torque at the rear wheel. If you hand calculate these figures out using a 25% figure you see quite a difference.
Diablo Sport Predator:
45/100 (RWHP/Torque) is equal to 56/125 at the the crank.
Contrasted to PPE figures:
40 HP/85 ft-lbs of torque at the crank equates to 30/64 at the rear wheel.
My point being, is that there should be some kind of standard set to post figures, most predominately figures where it counts, at the rear wheel. Comparing apples to apples: RWHP/Torque figures.
PPE _______________Diablo Sport
A forum community dedicated to Chevrolet and GMC diesel truck owners and enthusiasts. Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more!