90Mustangfan

If i bump the timing to 14* do I have to use permium gas 92 or can I still use 87 gas?

JustinBHR

You'll need to use premium or you'll knock

nemethjames1

hell you should always use premium, it just runs better i think... and my cars mostly stock, and i notice a little bit of a gain off premium... thats just my opinion though

86HOGT

Uh...I have mine at 13 and run 87, doesn't knock at all. I'm sure 1 degree wouldn't do anything either. When gas is 1.94 a gallon, you sort of have to.

Jugador

no you shouldn't. use what the manufacturer says. octane does not equal performance. octane allows more performance.

bobby

what u want to do is set it at like 12 degrees, take it out for a full throttle test, cpme back and bump it up another degree, take it back on the road, keep doing this until u hear any knocking or pinging, when u do retard the timing 1 degree or maybe 2 to be really safe, hope this helps

91GT50

I Bumped my Timming to 14 also but I can't tell if it's a knocking noise or my new exaust cuz I did both at the same time!!

bobby

what kind of noise could ur exhaust be making, its prolly ur timing

91GT50

I mean cuz it's noisy I'm not sure if it's actualy at knocking noise or just crazy *** air flow going through my pipes ?? Hard to tell inside the car but I'm pretty sure it's knowcking.... I'll find out tonight I'mm ganna bring it down a degree or two.

bobby

ya man bring it down a couple just to be safe, im pretty sure u would rather sacrifice a couple horsepower over burning up ur pistons, LOL