timing advanced or left alone

[DMAN302]

My set up is found in my sig, my question is what advantage is there to be had (performance wise) in advancing my timing from the 12* it's been at during break in, to 16* as I've heard is ideal. reason I ask rather than try is the car is sleeping till spring, so I have to ask from those of you who are in the know.
Thanks,
Derek.

 

[strtracer442]

Advancing your timing(without getting into detonation) allows your motor to start building cylinder pressure sooner, thus having more push when it starts the power(down) stroke. Bump your timing 2 degrees and drive it, make sure you've got no detonation, if that works, try 16.

 

[HISSIN50]

Advancing your timing(without getting into detonation) allows your motor to start building cylinder pressure sooner, thus having more push when it starts the power(down) stroke. Bump your timing 2 degrees and drive it, make sure you've got no detonation, if that works, try 16.

hmmmm. i think you are thinking of mechanical advance (i.e. degreeing a cam). advancing ignition timing simply changes how soon (or late) the spark ignites the mixture. i could be missing something though.....

 

[DMAN302]

Yes ignition timing is what I am inquiring about, I found mostly stock the timing had little noticable diference going from 10-14*. Now with a more agressive setup than I was previously running I was wondering if there would be a more noticable gain in running higher advance(say 16* rather than 12). Again I'd go try it for myself but tis the season to be parked in the garage. Oh by the way Hissin I couldn't help but notice you were making a new freind over on the other tread..he seems nice eh?

 

[HISSIN50]

Yes ignition timing is what I am inquiring about, I found mostly stock the timing had little noticable diference going from 10-14*. Now with a more agressive setup than I was previously running I was wondering if there would be a more noticable gain in running higher advance(say 16* rather than 12). Again I'd go try it for myself but tis the season to be parked in the garage. Oh by the way Hissin I couldn't help but notice you were making a new freind over on the other tread..he seems nice eh?

it really is a feel thing, i think. as you know, one can advance too far and while perhaps not hearing detonation, performance can suffer a smidge. i still just advance till i get some ping and back it off till i dont. short of tuning, logging, etc, im not sure one could discern a difference. perhaps Joe's SOTP test would work for all practical purposes.

i run anywhere from 10-15* (10* timing in 110* ambient temps, 15* in winter = 60-80*F ambient temps. i live a quarter mile from the sun) and dont know that i notice a difference. i think it is in my head.

i think my new friend likes Michael more than me.

 

[TrickStang37]

i saw that too LOL as for the timing, basically what HISSIN50 said. Also, usuallly, people that run aluminum heads can run a few degrees more without detonation. usually aluminum headed peeps run about 16-18.