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How much of a difference in the way your car drove, did going from +4 to +2 make? I'm trying to decide how to install mine. The guy who will be installing my cam says I should run it without any advance, and thunder racing says I should install it with +4 advance. Any opinions?
How much of a difference in the way your car drove, did going from +4 to +2 make? I'm trying to decide how to install mine. The guy who will be installing my cam says I should run it without any advance, and thunder racing says I should install it with +4 advance. Any opinions?
I've messed with cam timing on SBCs before. So I have a feel for what to expect. First, if the cam is too big/small, then the advance/retard adjustment doesn't make enough of a difference to correct it. Second, if you choose an optimum designed cam for your goals, then it should be installed "straight up". If it is not optimum and a little too much low-end biased then retard it 2 degrees. Too much high-end biased, advance it 2 degrees. Anything more, then I would reconsider the cam choice.
To be fair to the off-the-shelf cams, I can see why they are designed with 4 deg advanced. 2 degrees of advance will usually get eaten up in stock chain slop. The other 2 degrees is to help those guys that pick a little too big of cam than optimum.
I think highly of that 216 cam for a street/strip A4 setup. Should give a strong mid-range. To me I think you would be on the edge of needing to run headers with that cam. Just my opinion of course.
NocturnalSS, what else is done to your car???i noticed that you made 375 tq. I only made 352 but i think its good for just a small cam and longtubes.
When I got my 2002 Camaro SS dyno, the only thing I had done with it was a 3200 stall, since than I put LT Pacesetter Headers and high flow cats on my car.Maybe it was on the high side because the dyno numbers are STD rather than SAE. I was told there was not that big of a differance.
To be fair to the off-the-shelf cams, I can see why they are designed with 4 deg advanced. 2 degrees of advance will usually get eaten up in stock chain slop. The other 2 degrees is to help those guys that pick a little too big of cam than optimum.
I like the way you put that and I'm with you on this train of thought.
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