Thread: performance shift

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Scott B performance shift 06-26-2008, 08:26 PM
archemedes Re: performance shift 06-26-2008, 10:19 PM
Preotic Re: performance shift 06-26-2008, 11:14 PM
TCO Re: performance shift 06-27-2008, 02:15 PM
IndeedSS Re: performance shift 06-27-2008, 03:18 PM
blowfishRus6 Re: performance shift 06-26-2008, 11:23 PM
GeddyLee Re: performance shift 06-27-2008, 12:59 AM
IndeedSS Re: performance shift 06-27-2008, 07:33 AM
GeddyLee Re: performance shift 06-27-2008, 07:51 AM
Sabrewings Re: performance shift 06-27-2008, 08:47 AM
Reptile Re: performance shift 06-27-2008, 09:38 AM
GeddyLee Re: performance shift 06-27-2008, 11:36 AM
GTP00Matt Re: performance shift 06-27-2008, 12:33 PM
Myprixxx Re: performance shift 06-27-2008, 04:36 PM
Ninjo Re: performance shift 06-28-2008, 09:41 PM
Sabrewings Re: performance shift 06-28-2008, 09:49 PM
Ninjo Re: performance shift 06-29-2008, 07:26 PM
IndeedSS Re: performance shift 06-29-2008, 08:19 PM
IndeedSS Re: performance shift 06-29-2008, 08:37 PM
IndeedSS Re: performance shift 06-29-2008, 08:40 PM
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  1. #1 Re: performance shift 
    Donating Users GeddyLee's Avatar
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    You will see the words PERFORMANCE SHIFT inside your DIC on most newer GPs. You have to turn on the settings in the PCM and get a shift lever that has the PS button on it or you can rig up a switch somewhere else on your console to make it work.

    The benefits are nice in the fact that you can have your daily driver tranny setup in nonperformance mode and then have your track or jackin around settings setup for when you select the Performance Shift mode.

    Its something well worth looking into. I made a write up for it on our how to section.

    http://www.grandprixforums.net/perf_shift.php

    James Shafer
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  2. #2 Re: performance shift 
    SS-DD Level Member IndeedSS's Avatar
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    Most people find performance shift settings great for daily driiving, and leave it on all of the time. I think having a switch though would be nice though.

    Do the OSID's on GTPs without Performance Shift have the Performance Shift tables setup up? On the Impalas, Performance Shift and Normal have identical values in the tables.

    Nevermind: I just looked at a stock 2002 GTP bin and they do have different values. The Performance Shift tables are not that aggressive, but they are different than Normal.
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  3. #3 Re: performance shift 
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    Quote Originally Posted by IndeedSS View Post
    Most people find performance shift settings great for daily driiving, and leave it on all of the time. I think having a switch though would be nice though.

    Do the OSID's on GTPs without Performance Shift have the Performance Shift tables setup up? On the Impalas, Performance Shift and Normal have identical values in the tables.

    Nevermind: I just looked at a stock 2002 GTP bin and they do have different values. The Performance Shift tables are not that aggressive, but they are different than Normal.
    Well yeah GM is not gonna put massively different settings in the peformance shift. I think they mostly took off the speed limiter, and changed some shift points to hint at more spirited shifting, but nothing crazy.

    Of course you are gonna seek out people in the community who have redone their tranny tunes and get their profiles to make a better performance shift tune. I have Chris O's tune he uses on his GTP, different shift points and such beyond what the stock performance shift has to offer

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  4. #4 Re: performance shift 
    GrandPrix Junkie Sabrewings's Avatar
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    I like my more crisp shifts for normal driving. Less wear and tear on the clutches plus higher line pressure is a lower duty cycle (less wear) for the dreaded pressure control solenoid.
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  5. #5 Re: performance shift 
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    Quote Originally Posted by GeddyLee View Post
    Well yeah GM is not gonna put massively different settings in the peformance shift. I think they mostly took off the speed limiter, and changed some shift points to hint at more spirited shifting, but nothing crazy.
    Partially right. The speed limiter is set up in the spark and fuel tables, not the transmission settings.
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  6. #6 Re: performance shift 
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    Quote Originally Posted by Reptile View Post
    Partially right. The speed limiter is set up in the spark and fuel tables, not the transmission settings.
    DOH! Spanks for pointing that out sir...........

    Speaking of spark................plugs......................


    James Shafer
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    2005 Nissan Pathfinder SE 4x4 (The baby hauler )
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    1.9 Modified Rockers, TOGs, 180 Tstat, PRJ 10.4 Wires, P/P Gen 3, SLP Ram Air Hood/Wizaired CAI, Gen 1 Spoiler, 3.4 ZZP Pulley, Desert Fox Tranny Cooler, Thrasher Shift Kit, 18" TSW Mondellos w/ AGX Struts, SSC Gen II Springs
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  7. #7 Re: performance shift 
    SE Level Member GTP00Matt's Avatar
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    Quote Originally Posted by Preotic View Post
    They don't have the performance shift after 99.......
    My '00 GTP has it right on the shifter like normal.

    Quote Originally Posted by Reptile View Post
    Partially right. The speed limiter is set up in the spark and fuel tables, not the transmission settings.
    So forgive me, I'm new i guess only owned it for 2 months, when on performace shift there is no speed limiter? Or is it just raised up higher? Don't really need to go that fast but just curious.
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  8. #8 Re: performance shift 
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    Speed limiter is there based off your stock tire speed rating. Going to performance shift wouldn't magically swap tires on your car, so I highly doubt GM upped the overall speed limiter for performance shift. They may have extended some shift points, but I doubt your final limiter was lifted.
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