View Single Post
Old 12-17-2011, 01:07 PM   #22
tranzformer
Delights in pure handling
 
tranzformer's Avatar
 
Join Date: Apr 2011
Drives: Zoom Zoom
Location: KS
Posts: 4,854
Thanks: 0
Thanked 15 Times in 14 Posts
Mentioned: 1 Post(s)
Quote:
Originally Posted by ZDan View Post
Those engines revved to 9000 rpm or close to it.
Power = torque * rpm
There hasn't been any new tech over the past 10 years to give radically greater torque per liter, 75 lb-ft/liter is still about it.
So, 2.0 liters limited to 7400rpm, power peak at ~7000?
150 lb-ft * 7000rpm/5252 = 200hp, about all you can expect. Sounds like it's pretty well "tuned" close to the max from the factory.
The Porsche 911 GT3 RS 4.0 gets 85 lb-ft/liter but that relies on Porsche tech from the RSR. It is possible to get more than 75 but it costs $$$.
tranzformer is offline   Reply With Quote