Ok, I had my Cam Gears dialed in on a dyno last week. It had ony a stock B-Pipe, a axle back exhaust and a few bolt ons..
Today I got a new B-Pipe, 2 1/4".
Now my question is, should I advance my timing or retard it, or leave it alone.. I really dont want to go back to the dyno and spend another $75..
What is the general practice?. For bigger free flowing exhaust, do you advance more or retard more?
Thanks....

 

Can anyone help me out?..
Thanks

 

Be fore warned that, I concluded this information after about a year of butt dyno, some other info from others, and some deduction. It may or may not be the same with your car. But i have messed around with about 4 of my others freinds cars, gsr, 2k si two of them and mine which is a ls motor in hatch. Check it out:

--intake == more torque, ++intake == more midrange
++exhaust == more hp (top end), -- exhaust == more midrange

for every degree you advance the intake cam, you advance the ignition 2 degrees.

Good luck hope this helps.

 

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Wait are speaking of ignition timing or cam timing? I thought you were talking about cam timing considering you took it to the dyno