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Old 11-16-2009, 11:15 AM   #2
Superfan1
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Smile Re: Ford cj hp question

Quote:
Originally Posted by FED 387 View Post
With all the talk on this site about the NEW 2008 or 09/10 Mustang CJ horsepower ratings---Not being a Ford follower what engine did the Factory use to create this engine ? & what is the factory HP rating for the UNBLOWN engine as well as the Factory HP rating for the CJ engine--- Do not care if the CJ rating is bogus just trying to see how much of a power increase was achieved by putting the blower on as opposed to a unblown engine---now I understand that cams were changed and valve sizes etc.really not rying to stir anything up just trying to see/understand how much HP increase can be achieved on an/any engine by supercharging it---thanx Comp 387
The CJ engine was not based on an unblown engine; Ford based this engine on the Shelby GT 500 engine which is the same size as the CJ (5.4 liters) and is blown. Prior to 2009, the Shelby GT 500 was rated at 500HP; for 2009 it is rated at 540hp. The 2008 CJ was rated at 425HP from the factory, it was recently factored to 439HP. The 2010 CJ will be rated at 475 HP.
Bill Seabrooks - superfan1
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