Another gas, timing, related ?
01-03-2005, 12:53 PM
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Car: 1989 RS
Engine: 2.8L MPFI Bored 30 over (Rebuilt DEC 2004)
Transmission: 5 - SPD With 3.42 open rear end
Another gas, timing, related ?
I did a serach, but it doesnt seem to work right now so....I just built my engine,( 2.8L ) bored it 30 over and stock cam. I set the timing at 8 for the first 500 miles. Will this cause an engine to use more gas? Also i have not got a SES light. And yes i do have a scanner. Thanks
-Buck
-Buck
01-03-2005, 04:16 PM
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Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
I don't think it'd use more gas to notice; 2 degrees isn't a heck of a lot to be off. If you were overadvanced by a lot then it might cause detonation and hurt the new motor, but I think all that would happen by being 2 degrees off is that you'd have a bit less power.
01-03-2005, 04:31 PM
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Car: 1989 RS
Engine: 2.8L MPFI Bored 30 over (Rebuilt DEC 2004)
Transmission: 5 - SPD With 3.42 open rear end
So what do you think would cause this engine to use more gas than normal. Being bored out a little should not make it do this right? I am not sure.
-Buck
-Buck
01-04-2005, 12:29 AM
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Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
You're right, 0.030" shouldn't cause it to use up a ton of gas... have you pulled any spark plugs to see what they look like (carbon'd up, running hot, etc)?
01-04-2005, 08:12 AM
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Car: 1989 RS
Engine: 2.8L MPFI Bored 30 over (Rebuilt DEC 2004)
Transmission: 5 - SPD With 3.42 open rear end
No i havent cause it runs real good, better than i expected. My only concern is this thing really loves to rev. It is nothing to see 5 grand in 1st and 2nd gear without realizing your doing it. Anyway this car set for like 8 years before it was brought back to life and i was wondering what sensors may cause this engine to use more gas. I know the o2 will, but it think it is fine. Any suggestions?
-Buck
-Buck
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