Quote:
Originally Posted by fastgoat
Has anyone out there made 2 hp/cu in. with a stock block normally aspirated Pontiac on race gas? Or with an aftermarket block? Documented (dyno sheets)?
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We made 860HP for 440 cubes with a stock block in 1982. It went 146mph in a 3450 lb car for back up calculations. This was with old chassis efficiency heavy wheels, tires, anladder bars heavy drums, cast iron heads, no flow bench. With just fuel we have today we would have gotten at least 880 for 2HP per cubic inch. This was a stock block and we shifted at 9600 RPM.
We used this same block and crank in Stacy's Grand Am until 2010.
The new RAV engine being done must be 2.9HP per cubic inch to be on top 2.7 to be competitive. With our existing ports 2.7 for this engine is very capable, we must work very hard to get 2.9. We will post this project as it happens.
I think a mild set of RAV heads on a stock block 400 is worth 2HP per cubic inch.