Quote:
Originally Posted by native1
Roush says motor should make around 540 hp at crank mine made 450 rwhp. Would love to see 500 rwhp Has anyone done these mods to their BDR? How many ponies is it worth?
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... not worth as many as you think. You're getting
really good numbers. My aluminum 427 Windsor (TKO-600, 3.73's) dyno'd at 612 hp/615 tq, but it made ~ 458 hp/tq at the wheels... and that IS with 2" custom headers. I think you'd be VERY VERY hard-pressed to squeeze 500 whp out of your setup... there are just too many factors. Yes, the headers & sidepipes are lossy... so is the transmission & the IRS rear end. A drivetrain loss of less than 10% is unheard of in these cars. 15-30% is more realistic.
Save your money... and enjoy your car. Just quote everyone the flywheel horsepower/torque figures and tell them it's a 427.