bumped timing

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10-30-2006, 05:33 PM

#21

MEM 302 5.0L

3rd Gear Member

Join Date: Aug 2006

Location: MO

Posts: 805

RE: bumped timing

doesnt what timing and wat kind of gas you have also depend on where u live...cold weather or warm weather.....in the cold u can get away with lower octane and higher timing, denser air, denser fuel......am i right?

10-30-2006, 05:36 PM

#22

7upedition

5th Gear Member

Join Date: May 2005

Location: Central New York

Posts: 3,850

RE: bumped timing

well the fuel changes with climate... ny's getting winterized gas now, but in the summer it should all be very very similar

10-30-2006, 05:37 PM

#23

MEM 302 5.0L

3rd Gear Member

Join Date: Aug 2006

Location: MO

Posts: 805

RE: bumped timing

OH YEAH i forgot about that...i was wondering why 91 and 89 octane isnt for sale nemore....haha thanks

10-30-2006, 05:40 PM

#24

P Zero

5th Gear Member

Join Date: Jun 2005

Location: Michigan

Posts: 3,986

RE: bumped timing

Quote:

ORIGINAL: MEM 302 5.0L

doesnt what timing and wat kind of gas you have also depend on where u live...cold weather or warm weather.....in the cold u can get away with lower octane and higher timing, denser air, denser fuel......am i right?

Itll make some differnce. 14* is as far as I can go with pump gas. I am @ 11:1 compression though.
-P.

10-30-2006, 07:53 PM

#25

MustangMadness7

4th Gear Member

Join Date: Apr 2006

Location: Maryland

Posts: 1,261

RE: bumped timing

I run 18* with 93 all the time. Iv never tried running it with lower octane, it might work on 91, but just to be safe i always run 93.

10-30-2006, 08:49 PM

#26

LCBlackDep183

3rd Gear Member

Join Date: Jul 2006

Location: Baltimore, MD

Posts: 958

RE: bumped timing

Different things can cause pinging, something as little as clogged cats or carbon buildup on the pistons & valves can change the pressure in the cylinder and cause pingging, also miles have a effect on it...