- Nov 9, 2021
- Reaction score
I have a 94GT that I’m putting together parts for a rebuild with GT40P heads with 1.72 SVO rockers, and cobra GT40 intake. I’m doing a lot of research into cams for my combo. I’d like it to run at least without a tune initially and I know people say stick to Lobe separation angles 114 and above generally. Since I already have 1.72 rockers I was looking specifically at cams designed for 1.7’s. The Comp XE264hr or XE270hr fit the bill, but the versions of those cams when designed for a 1.7 rocker drop down from a 114 to a 112 LSA. The LSA is litally the only change comp makes to them when designed for 1.6(114LSA) or 1.7(112LSA) My question is why is this? And will that affect the ability of the sn95 computer to run it? maybe someone with more valvetrain knowledge can explain why you need less LSA with a higher ratio rocker?