which valves springs?

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01-21-2008, 07:00 PM

#16

The Engineer

Registered User

Join Date: Jan 2005

Location: Moore Oklahoma

Posts: 1,388

Quote:

Originally Posted by pkozera

My question is why are you trying to spin that cam above what comp says its rpm range is witch is 2200 to 6200 rpms?

Taking it to slightly over 6500, with a rating of 6200 RPM really isn't really that significant (only 300 additional RPM), also my heads are a factor. Additionally, the Comp rating of 6200 RPM is probably on the conservative side. If I was going for 7K, that would be an issue.

WD

01-21-2008, 07:14 PM

#17

speed_demon24

Registered User

Join Date: Mar 2002

Location: Ocala, Florida

Posts: 3,245

Quote:

Originally Posted by The Engineer

Your extra 46 cubic inches also shifts the power band down alot over a 350 c/i motor. A stock cube motor wouldn't be able to rev high enough to take advatange of that cam with the stock pcm, and thats assuming you can control the valvetrain.