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Discussion Starter #1
Ok, not very good with cam math. Trying to determine total lift with the following information.

From cam card:
Gross valve lift Intake .577 Exhaust .587
Duration @ .050 Intake 227 Exhaust 239
LSA 112*
Camcard:


Now factor in the 2010 Challenger SRT8 6.1L.

What would be the total Intake/Exhaust valve lift?
 

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Just multiply your lobe lift ratio by the rocker arm ratio. Now the real number will be ever so slightly less as some is lost in the lifter/pushrod/rocker/valve tip geometry.
 

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Discussion Starter #4

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Discussion Starter #7
My tuner needs these numbers .577/.587 instead of the ratio x rocker lift? Maybe that's why it's running poorly. I'm no expert, thus the post since I'm getting conflicting information.

Thx for the responses.. hope to have it all worked out soon!!
 

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Discussion Starter #9 (Edited)
Only way to smooth it out is to disconnect the PVC tube from the top of the intake. Gotta be tune related due to the volume of air now. Herd it's a @#$% to try and tune aggressive cams.

Can't drive it at the moment... surges and dies after revving.
 
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