Quote:
Originally Posted by Truck Norris
Ford has a long history of under rating their horsepower ratings. It may be rated at 20 hp difference at the crank but it is more if you compare how much of it makes it to the ground.
After searching youtube I found that most stock GT500's are putting down 600whp vs 520-550whp for ZR1's on a chassis dyno.
|
My understanding is that solid axles eat up less power than IRS set ups do.
Either way, if the engine is SAE rated, it can't be underrated much if at all.