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Laurent Gauthier · 04-25-07, 03:12 PM

Hello,

I just got the numbers from Roush on my new engine (to go into a SPF GT40 Mk1). It's a 351W - 427IR. All alloy.

RPM Tque HP
3000 441 252
3500 485 323
4000 462 352
4500 527 451
5000 527 502
5500 514 538
6000 478 547

Given the dip in torque around 3800 rpm, there seems to be a huge increase in power between 4 and 4.5k rpm: 350 to 450hp. I guess I'll need a light foot.

04-25-07, 03:12 PM	#1 (permalink)
Laurent Gauthier LOG Rookie Join Date: Dec 2006 Location: New York GT40: SPF P/2198 Posts: 32 Rep Power: 2	Roush dyno test Hello, I just got the numbers from Roush on my new engine (to go into a SPF GT40 Mk1). It's a 351W - 427IR. All alloy. RPM Tque HP 3000 441 252 3500 485 323 4000 462 352 4500 527 451 5000 527 502 5500 514 538 6000 478 547 Given the dip in torque around 3800 rpm, there seems to be a huge increase in power between 4 and 4.5k rpm: 350 to 450hp. I guess I'll need a light foot.