Is my cam pushing it?

[Dbunch9]

Originally Posted by acammer

Likewise - there are definitely off the shelf grinds that offer even more lift and duration on a tighter LSA that still have acceptable PTV clearance. The GPI stick going in my car this month has more lift that OPs cam, and more duration than the BTR STG4 on a tighter LSA than either of them. Still maintains acceptable PTV clearance on stock heads without the need to flycut.

It's what I would consider a "max effort" without pulling the heads kind of cam that doesn't absolutely shred the valve-train. GPI has a proprietary cam lobe that is designed to work with the stock lifters/rockers and BTR .660 Platinum springs. So - all that said to really say that the cam the OP has isn't a monster stick, and shouldn't be a major concern for tearing up the valve-train - just keep an eye on the springs.

Sounds like we have the same cam going in. Definitely the biggest compared to other shelf cams I was looking at, long duration doesn't seem bad and high lift doesn't seem bad but when I saw the specs of my ss3 I was like damn lol this has to be cutting it close

[acammer]

Originally Posted by Dbunch9

Sounds like we have the same cam going in. Definitely the biggest compared to other shelf cams I was looking at, long duration doesn't seem bad and high lift doesn't seem bad but when I saw the specs of my ss3 I was like damn lol this has to be cutting it close

Yep - I reached out to validate PTV clearance - Ryan's confident in it even with a .040" head gasket. Those guys know what's up - so I'm comfortable with that. Makes a lot of these other "stage 3" cams look more like a stage 2.

[frankwjr]

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