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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
 

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Better do something to that tranny before you start thinking about smoking 2 lane highways. JMO.
 

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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.
65/140 _______________________81/175
85/170 _______________________106/212
120/250 ______________________150/312

Contrasted to PPE figures:

40 HP/85 ft-lbs of torque at the crank equates to 30/64 at the rear wheel.
90/160 ____________________________________67/120
160/290 ___________________________________120/217
225/390 ___________________________________169/292

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
30/64_______________45/100
67/120 _____________65/140
120/217 ____________85/170
169/292 ____________120/250

Very interesting huh?
 

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Smoke is unburned fuel and in most cases a bad thing. The less unburned fuel you have the better the tuning from what I have read. Trans will be the weak link as always and need to upgraded.
 
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