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Thanks for your replies.Bill,I have some data and would like your and others opinion.The data sheet Roush sent with the motor shows 497.9 C Pwr C_Hp at 6000 rpm and 435 CTorq C_FtLb at the same rpm. The engine redline is 6500 rpm so I would assume that the Roush advertised 515 hp is correct. I am not so sure,however,about the 500 lbft torque number. I had the car dynoed several months after purchase on a dynojet.
We did 3 pulls with the following hp/torque results:378.03/389.6, 382/393.01, 385.43/393.34.
As the car did not have rev limiter at the time{does now}, I was shutting it off at ~6300-6400rpm.If I take a 20% reduction in the hp numbers, I should be pulling around 412hp at the rear wheels and 400 lbft of torque. A 15% reduction should result in 437.75hp and 425lbft of torque.
Any thoughts?
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