stage 1 tune ?
10-22-2008, 11:24 AM
#1
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stage 1 tune ?
i know this has been covered in the faq. But is the stage 1 and 2 tune the same . Can anyone confirm this for sure. and has anyone bought a stage 1 and just added a 3.0 pulley and belt later thanks.
run a 3.1 pulley
10-22-2008, 12:44 PM
#4
majority of people that know what they're doing do it this way. I think the difference is the stage 2 comes with bigger injectors, so you can't go too small of a pully with the stock injectors.
10-22-2008, 12:54 PM
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thats why i was asking if anyone personaly has bought a gm stage 1 kit with injectors and tune and at a later date added smaller pully and belt making it a stage 2
10-22-2008, 01:00 PM
#6
(TRABSAM197781) I bought the GM Stage 1 kit first then later on bought the GM Stage 1 to Stage 2 upgrade kit. GM Stage 1 comes with 42 lb/hr injectors and the tune. Most people don't realize that the only diff. between Stage 1 & Stage 2 is the Pulley. Same exact tune .... same exact injectors.
10-22-2008, 01:07 PM
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yea its completely possible...
the only thing your going to notice is a small power gain from the pulley when u put it on... other than that, the tune will give you a little bit of power till the pulley is put on.
no you dont have to return anything....
you just... install the pulley...
the only thing your going to notice is a small power gain from the pulley when u put it on... other than that, the tune will give you a little bit of power till the pulley is put on.
no you dont have to return anything....
you just... install the pulley...
Last edited by ShortStack; 10-22-2008 at 01:07 PM. Reason: Automerged Doublepost
10-22-2008, 01:15 PM
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I bought stage one then a used hub ,stg2 pulley and a new belt. In the stage instructions it says when installing the stage 1 to 2 upgrade that if you havent yet installed stage 1 then you need to have the stage 1 tune in order to install the stage 1 to 2 upgrade. The instructions make it clear that there is only one tune
10-22-2008, 01:26 PM
#11
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I had stage one and 3" pulley for a while without any issues, and to the chap with the info on the stg1 to stg2 instructions, good find and answered a londtime question I had.
10-22-2008, 02:43 PM
#14
Like what RUKKEE said .... There is only 1 tune with the GM Stage kits (except for GM Stage 3). There is no such thing as a GM Stage 2 "tune". If you have GM Stage 1 you can drop down to the Stage 2 pulley or Stage 3 pulley with no problems. That's what I did.
10-22-2008, 02:59 PM
#15
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I have a custom tune now and can run w/ STAGE 2 cars ..... no problem
10-22-2008, 05:37 PM
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injectors
10-22-2008, 05:43 PM
#17
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my bad I meant 42lb injectors....
here is the original thread for this
https://www.cobaltss.net/forums/front-page-news-17/2-0l-ecotec-gets-boost-gm-performance-parts-stage-kits-16834/
here is the original thread for this
https://www.cobaltss.net/forums/front-page-news-17/2-0l-ecotec-gets-boost-gm-performance-parts-stage-kits-16834/
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