is 38.5 degrees too much advanced timing?
#1
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i put my cam in and put instead of doing it dot to dot. i just put the new T1 cam where the old one was before because i had no way of turning the crankshaft over so i could find its dot. i put it exactly where the old one was though. i'm getting 38.5 degrees of timing and 0.0kr. thanks for the help
#3
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Are you SURE you're at WOT? 38.5 degrees of timing at WOT is WAY too much for an LS1! I also would not have installed the cam without putting the #1 cylinder at TDC. Lining up the dots is pretty common by most guys that install their cams, but even then, you still don't know exactly where the cam is installed. I personally wouldn't feel comfortable with the install. How did you get the crank pulley off? Why didn't you put the old crank bolt in and turn the engine over with a wrench?
#6
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I'm pretty sure he has to be talking about NON-wot. I don't think you could get 38.5 degrees with absolutely no knock retard. I found that when I was hitting like 29-30 degrees (stock cam ported MAF, a lil lean) I would occassionally get 1-2 degrees of KR. However I (and I'm sure everyone else) see some crazy timing numbers at part throttle.
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#7
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Lower rpm timing is like 35-42 degrees, but WOT for a stock car is like 27 degrees.
I currently run 31 degrees of timing at WOT.
When you do heads/cam, you might need to add timing down low to help driveability.
I currently run 31 degrees of timing at WOT.
When you do heads/cam, you might need to add timing down low to help driveability.