We all know that advancing ignition timing makes a difference. My question is if I should advance mine more.

Heres the situation:

I used to have my ignition timing set at 18 degrees, and it had slight pinging, that was when my knock sensor was broken. I set timing back to 15 to be safe. Now that I fixed my knock sensor, i brought timing to 18 degrees and there is no pinging at all. Should i advance more? I heard that You should not go above 18 degrees. Thanks for all input.

 

If you had pinging when your knock sensor was gone, then now your knock sensor must be pulling back the timing just enough to prevent it. So advancing any farther probably won't do any good, because the knock sensor will continue to pull it back to where its not pinging.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JimBlake &raquo;</TD></TR><TR><TD CLASS="quote">If you had pinging when your knock sensor was gone, then now your knock sensor must be pulling back the timing just enough to prevent it. So advancing any farther probably won't do any good, because the knock sensor will continue to pull it back to where its not pinging.</TD></TR></TABLE>

 

the only way to really tell is to get your car on the dyno. with b motors 17-18 deg is usually all they will take before detonation starts.

 

I wouldnt advance it anymore than 18º running pump gas and no fuel upgrades. Your not going to gain much of any hp you might actually lose some if you advance it way to much. Your button end will take a dump on you

 

how much advancing can a d series take theoretically?