3100 compression

jweir22

Join Date: Oct 2003

Posts: 111
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#1

3100 compression

10-23-2004, 02:43 PM

Just wondering what would be good solid numbers for compression on a 3100 engine.Is 160 to 180 good.And what would be stock.Thanks jeremy

1995 Cutlass Supreme 3100 SFI
Cold Air K&N Filter
58mm TB
Dynomax Duel Exhaust with Performance Catalytic Converter
FFP Underdrive Crank Pulley
1/4 mile 15.65 at 90.8 mph
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TheProfessor

Join Date: Oct 2003

Posts: 869
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#2

10-31-2004, 11:55 PM

sounds about right

I Like V660s
Does Chevy make beer
~Jayme~
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kill_them_all

Join Date: Jul 2004

Posts: 96
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#3

11-04-2004, 07:47 PM

I think the spec on the 3100 for my car was 20% variation from the highest cylinder.
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dbtk2

Join Date: Feb 2004

Posts: 349
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#4

11-04-2004, 08:42 PM

GM spec is within 20% IIRC and over 100.

90 Grand Prix STE 3.1 Intercooled Turbo-3100 Hybrid
K&N, Magnaflows, No Cat, Chip, FFP Pulley, H260 Cam, No EGR.
99 Grand Prix GT
K&N|No Cat/ubend/res|160 tstat|shift kit|UD ALT & WP Pulleys|XP Cam|Stage 2 I/C|Pacesetters|MPS|2.9"|Custom PCM
12.665 @ 110.44 w/2.018 60', STREET TIRES, PUMP GAS!
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