V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

3.1 airpump delete, what belt?

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Old 06-09-2016, 03:36 PM
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Car: 1991 Pontiac Firebird convertible
Engine: 3.1 soon to be 3.4/3100
Transmission: 700r4
Axle/Gears: original gears, for now
3.1 airpump delete, what belt?

What serpentine belt part number did you use after deleting your air pump? The no-a/c belt is way way to long
Old 06-10-2016, 12:36 AM
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Car: 1991 Pontiac Firebird convertible
Engine: 3.1 soon to be 3.4/3100
Transmission: 700r4
Axle/Gears: original gears, for now
Re: 3.1 airpump delete, what belt?

Never mind



I figured it out.
Old 06-10-2016, 02:06 AM
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Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: 3.1 airpump delete, what belt?

should just be the stock 2.8 belt as they dont have air pumps
Old 06-10-2016, 10:59 AM
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Re: 3.1 airpump delete, what belt?

2.8s did have an option for an air pump, I pulled mine off when I got it (1988)
Old 06-10-2016, 11:54 AM
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: 3.1 airpump delete, what belt?

Originally Posted by drdave88
2.8s did have an option for an air pump, I pulled mine off when I got it (1988)


thinking about it now my 2.8 had an idler pulley in the air pump location
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