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Old 11-30-2009, 01:00 PM
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Default cam lift

Is there any real benefit to running more lift on a blower (centri) car? The cam I have is .550/ .550 with 1.7 rockers. What would be the benefits (if any) to running more lift verus have less lift. I know obviously less lift is easier on the valvetrain but is there a significant increase in power running more lift? The full specs on the cam in question are 232/240 .550/.550 117+3. Thanks for the help, just trying to get a better understanding of how cams work.
Old 11-30-2009, 07:03 PM
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A lot depends on the heads you are using and how they flow at higher lifts. If your heads continue to flow at higher lifts then using that extra lift will help mostly in the upper rpm range. If you can change to 1.8 rockers you will get a 2-4 degree duration bump at the valve in addition to the higher lift. I like to maximize the lift I get out of a cam - as much as possible while still remaining reliable. I do expect to change my valvesprings about every 3 years or 20K miles.

Jim
Old 12-25-2009, 04:48 AM
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So is more lift better for a PD blower or not?
Old 12-25-2009, 06:03 AM
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Originally Posted by Bullitt4110
Is there any real benefit to running more lift on a blower (centri) car? The cam I have is .550/ .550 with 1.7 rockers. What would be the benefits (if any) to running more lift verus have less lift. I know obviously less lift is easier on the valvetrain but is there a significant increase in power running more lift? The full specs on the cam in question are 232/240 .550/.550 117+3. Thanks for the help, just trying to get a better understanding of how cams work.
Take a look at the power we made with this LS3 Corvette with 8 psi of boost and our blower camshaft. http://www.exoticperformanceplus.com...Car.php?car=59 Bob
Old 12-26-2009, 03:31 PM
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Are you running stock heads?

Jim



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