Dropping Pulley Size

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Feb 13, 2009 | 07:16 PM

#26

greygoose08

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Joined: 02-04-09

Posts: 302

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From: WI

that helps alot thank. so i bought the 42#injectors tonite and also now am getting the bug with a a zzp 3" pulley and gm belt. should be ok now right?

Feb 14, 2009 | 05:19 PM

#27

06SS ALL DAY

Senior Member

Joined: 10-01-08

Posts: 4,790

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From: Philthydelphia, PA

you still need to buy a pcm from ottp or get a dyno tune at a local shop before you put in the injectors. if u put the injectors before the tune. ehh not so smart

Feb 14, 2009 | 05:37 PM

#28

greygoose08

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Joined: 02-04-09

Posts: 302

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From: WI

what is the problem going to be? when i bought the injectors and w/e else i am getting a reflash code that i take to the gm dealership and have them reflash the pcm. rite?

Feb 14, 2009 | 09:14 PM

#29

cobalt ss/sc

New Member

Joined: 01-30-08

Posts: 187

Likes: 1

From: Fort Wayne Indiana

is there any way to watch my air fuel mixture more closely without getting a wideband?[/QUOTE]

no

Quote:

Originally Posted by 06SS ALL DAY

you still need to buy a pcm from ottp or get a dyno tune at a local shop before you put in the injectors. if u put the injectors before the tune. ehh not so smart

buddy in a saturn ion ran 42s without a tune

Last edited by cobalt ss/sc; Feb 14, 2009 at 09:14 PM. Reason: Automerged Doublepost

Feb 14, 2009 | 10:24 PM

#30

rukkee

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Joined: 08-21-06

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From: Western NY

Quote:

Originally Posted by falke401

I would think you would go lean a bit faster than others closer to sea level.

Nope , exact opposite , lower the leaner ...higher richer . I would say your safe at 5K feet to run a 3.1 , that might put you at stock boost level's that high up (12.5). Just watch it if you take a trip to lower alt's or sea level.