89GTnoob

Okay I read the tech article on how to, but it didn't explain why. If the truth is running higher octane gas doesn't improve power, then what makes timing make more power? I understand the basics of timing and how octane works, but I'm wondering how much power you can gain by taking it up a few degrees.

luckythirteen13

increasing timing starts the burn process sooner in the compression stroke creating more cylinder pressure and thus, more power. higher octane burns slower and resists detonation better allowing you to run more timing

rmodel65

in addition to more low end and mid ranger power you can gain MPG(if you can keep your foot out of it) and also cooler engine temps

89GTnoob

Ah, thanks guys.

projectresto83

because its a proven fact that our cars make more power with more advanced timing (12-14*) even on 87 octane

89GTnoob

I knew that it did make more power, just didn't understand how

Bubba 95SN

Try retard timing, then drive car. After that experience you can appreciate advancing the timing...

nitrous_bob

because they work EXACTLY opposite

you add octane for a lean condition... but yet you want to be lean as you can SAFELY be for optimum power. more octane or less timing makes u safer

octane reduces combustability chemically, so it retards detonation, just like less timing does mechanically

get it now ???? if not.... i'll explain as best as i can

89GTnoob

I understood what everyone else said, but when you brought air/fuel ratio into this, it went over my head. If you have a lean condition, you'd want to add more fuel, not higher octane...... ?

redemption

+1 on what lucky said