What will happen going from *25 to *15 timing?

Fett

New Member
Nov 2, 2004
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Yea....oops.

When I replaced my junkyard dizzy with an Excel one, I set my timing at *15....or so I thought. You can see my times in my sig, after I set the timing. I was getting detonation at 5200+rpms, but I figured the 99* heat had something to do with it. I ran consistant 13.2 @ 102mph, with a 1.7/1.8 60'.

Last week I started missing, so after looking at my cap I decided to replace it with an MSD cap. At that time a friend of mine told me that he just found out his timing light is off....this is the one I used to set my timing. So I replaced my cap and checked my timing with a new timing light. With the plug out, I was at 25* advanced.

Needless to say I brought it down to 15* and put the plug back in. Everything seems to be running fine.

My question is, what will happen to my times? I am not sure if having such an advanced spark helped or hurt my times the last time out. I don't know what to expect now, will the corrected time hurt, help, or make no difference in my ET and speed?
 
There's a point even before audible detonation where power drops off. It sounds like you were off the backside of that hill and in the valley.

I'm surprised you could run that much advance in that kind of heat Chris. I dont know what to expect for you time-wise.

Good luck.