EDIT The picture has been swaped out with the actual correct numbers for easier use/verification. If some part of the thread doesn't make sense, now you know why EDIT

The old setting is what the car had always been run at, ever since I bought it.
I bought a timing light and advanced the timing, to this setting. The pic explaines all. I tried 4* but when I gassed it and then let off (in first gear) I heard a quick noise from the exhaust. It sounded like a backfire? Not sure really. So I set it here, at ~2* and it feels great. From a roll of 5-10mph when I give it WOT it'll spin the tires, it never had that power before! I put in 91 octane gas....everything sound good? I was afraid of going with the 4* advanced because I did'nt want detonation. Maybe the car had been driven 150,000+ miles with 2* retarded timing and coulden't get used to a 6* change? Just wanted to be sure everything's ok here.....Thanks.

 

That's probably ~2-3*. Halfway up that first peak is 2* the peak is 4* the valley is 6*...etc.

 

Ah....so it was really retarded before then...no wonder it feels so much better...

 

Yeah, from the picture that looks like about 6* retarded.

 

The only thing is....I'm in park, idle is at 750rpm and i'll step on the gas a bit, real quick and bring the rpms up to ~3000 and let off....when it comes back down it'll stop at ~1500 for a second then slowly come back to idle...Is that normal?

 

Thats about right.

 

Great, thanks guys!

 

Thats the IAC motor working.

 

That picture is awesome! Seriously I'm adding this thread to one of the stickies at the top, that picture will help SO many people figure out where to set the timeing in their cars! As far as the thread itself, this does belong in the tech/general board, so off it goes... Thanks nidyanazo!

Bruce (90RS305)

 

Glad I could help, but it was you guys that solved my question. So thank you guys.