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Jeff Chambers · 02-05-2005, 08:20 AM

Engine builder is probably right, you're probably wrong. I don't mean that to be offensive, it would just seem that your engine builder probably knows more about this type of thing than you do.

For an engine slapped together from off-the-shelf, out-of-the-box components, the best estimate is probably around 1.15-1.25 HP per cubic inch, normally aspirated. If you listen to your experience builder and take the advice of other experienced racers, you could probably hope for 1.5 HP per cubic inch. Go all out, break the bank and do some R&D and 2.0 HP per cubic inch is not out of the question. My best guess give the little information above is 450-465hp at the crank.

02-05-2005, 08:20 AM	#5
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Re: is my engine builder on drugs? Engine builder is probably right, you're probably wrong. I don't mean that to be offensive, it would just seem that your engine builder probably knows more about this type of thing than you do. For an engine slapped together from off-the-shelf, out-of-the-box components, the best estimate is probably around 1.15-1.25 HP per cubic inch, normally aspirated. If you listen to your experience builder and take the advice of other experienced racers, you could probably hope for 1.5 HP per cubic inch. Go all out, break the bank and do some R&D and 2.0 HP per cubic inch is not out of the question. My best guess give the little information above is 450-465hp at the crank. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"