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Would I need to get my car tuned if I changed rockers?

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Old 11-14-2004, 09:05 PM
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Default Would I need to get my car tuned if I changed rockers?

Hey guys, I have the Hotcam in my car, and I want something bigger but I don't want to go through another cam swap right now. I can get a sweet deal on some SLP 1.85 rockers, and I was wondering would I need a tune with them? I know I would have to change the springs again, and I read that 03+ LS6 springs are good to .570 lift? I think the Hotcam + 1.85 rockers would come in just under that. I already paid for a dyno tune once, and if I would have to do it again I would just hold off until I go for a bigger cam. Thanks guys!
Old 11-15-2004, 06:57 PM
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u shouldn't need a new tune, ur duration numbers will only go up by 2 degrees at the most... ur lift will go up to .571" tho, so i would go to a comp 918 spring or similar...
Old 11-15-2004, 07:20 PM
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Originally Posted by someday
u shouldn't need a new tune, ur duration numbers will only go up by 2 degrees at the most... ur lift will go up to .571" tho, so i would go to a comp 918 spring or similar...
Hmm... wouldn't letting that much more air in require more fuel too? Also, should I upgrade my retainers?




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