Also a stock rocker will put out about .030 deflection on a LS6 spring, and about .025 on a 105 spring.... which puts a .600 lift back around the 570
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11-23-2011
Also a stock rocker will put out about .030 deflection on a LS6 spring, and about .025 on a 105 spring.... which puts a .600 lift back around the 570
11-23-2011
Oh, so it is just a guess.Originally Posted by darkhorizon
Cool.
11-23-2011
No, my precision and lack of ability to test vs a cam/rocker/pushrod was what was limiting me from making specific factual observations. It is not easy to measure things like this in precision +-.005, and frankly it was not needed for what I was trying to prove. all I needed to know was that a 1.6 roller had SIGNIFICANTLY less peak lift than a stock rocker, and that a 1.8 rocker had similar peak lift to a stock rocker.
11-23-2011
I've read your posts,
So that means everyone has been doing it wrong all these years milling valve guides when running ANYTHING more than .550" lift.
Guess so.
11-23-2011
Soooo... 1.6 stock rockers are better than 1.6 rollers??? Just doesn't seem right to me....
11-23-2011
I just can't see how 1.9 rrs would work with an s1x or xp, especially if we are referring to stock heads. Maybe with stg3 ported heads and 130# springs I can see running 1.8s, but seriously 1.9s??
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