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  • 1 Post By dsmuts

2003 grand prix towing

This is a discussion on 2003 grand prix towing within the General Tech Discussion forums, part of the W Body Tech category; ok i know this isnt normal but i want to increase my GP towing capacity. i know that i would ...

  1. #1
    SE Level Member David Austin's Avatar
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    Default 2003 grand prix towing

    ok i know this isnt normal but i want to increase my GP towing capacity. i know that i would have to get a better trans cooler and possibly upgrade suspension to something like air ride but does any one else know the major weak points in these cars to increase to towing capacity on my 2003 GP. please no criticizers. trying to only own my grand prix and not have to get another truck for a small camper orvtrailer. jusdt curious on what others have found out. thanks in advance guys and gals for input.

  2. #2
    WHERES THE LAMB SAUCE?!?! Matt Palm's Avatar
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    Default Re: 2003 grand prix towing

    make sure your stut mounts arent all rusted out
    dhp tune, sd lip, shiny stuffs, retros, gen 2 spoiler, gpo's, pregens
    http://www.grandprixforums.net/palm-tree-random-things-showing-up-75198.html

  3. #3
    I live here. dsmuts's Avatar
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    Default Re: 2003 grand prix towing

    Get a built trans.
    98 GTP 230K miles scrapped
    04 Comp G 180*, HAI, poly db's, zzp stb's, UMI ta's, Speedbuilt sways, DNA springs, Port and polished heads, S1X, sd headers.

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    GT Level Member Utter99's Avatar
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    These trannys are a very weak point in the gp's . 4 th clutch hub would probably be the first to go
    MY LUGNUTS REQUIRE MORE TOURQE THAN YOUR HONDA PUTS OUT!!!

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    GXP Level Member slick2500's Avatar
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    Default Re: 2003 grand prix towing

    How big a camper? Like one of those pop out jobs?
    And iirc the 03s had the hardened 4th in them.
    If its a GTP remove the supercharger belt when towing.
    SMGPFC Member #14
    Silver 2001 GTP - Bottom Swapped, SD Headers, hi flow cat, AEM dryflow HAI, Green Bastard ported M90, Autolite 104's.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower

  6. #6
    GrandPrix Junkie gtpeddie's Avatar
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    Default Re: 2003 grand prix towing

    get some stiffer springs and maybe some spring blockers

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    I want a Volvo. Fivefingerdeathpunch's Avatar
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    Default Re: 2003 grand prix towing

    Why would you remove the supercharger belt?

    What if he had to get up to speed quicker than normal and hit PE, would dump fuel and have no air there, that would hurt the motor.

    I believe the manaul says the towing capacity and I wouldnt go above that, unless the trans was built up more.

    The 03+ does have the hardend 4th gear shaft so that helps alot.

    SMGPFC Member #1

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    I live here. dsmuts's Avatar
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    Default Re: 2003 grand prix towing

    Quote Originally Posted by slick2500 View Post
    If its a GTP remove the supercharger belt when towing.
    WHAAA???? I wouldn't do that.
    98 GTP 230K miles scrapped
    04 Comp G 180*, HAI, poly db's, zzp stb's, UMI ta's, Speedbuilt sways, DNA springs, Port and polished heads, S1X, sd headers.

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    WHERES THE LAMB SAUCE?!?! Matt Palm's Avatar
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    Default Re: 2003 grand prix towing

    Quote Originally Posted by Fivefingerdeathpunch View Post
    the brodon does have the hardend shaft so that helps alot.
    you are to funny cam
    dhp tune, sd lip, shiny stuffs, retros, gen 2 spoiler, gpo's, pregens
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    I want a Volvo. Fivefingerdeathpunch's Avatar
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    Default Re: 2003 grand prix towing

    Not sure how thats funny, you clearly edited what I really said.

    SMGPFC Member #1

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    GXP Level Member slick2500's Avatar
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    Default Re: 2003 grand prix towing

    I have been told that you should not pull anything with a GTP because it will mess up the supercharger and if you do need to tow something to remove the supercharger belt.
    SMGPFC Member #14
    Silver 2001 GTP - Bottom Swapped, SD Headers, hi flow cat, AEM dryflow HAI, Green Bastard ported M90, Autolite 104's.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower

  12. #12
    I live here. dsmuts's Avatar
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    Default Re: 2003 grand prix towing

    Quote Originally Posted by slick2500 View Post
    I have been told that you should not pull anything with a GTP because it will mess up the supercharger and if you do need to tow something to remove the supercharger belt.
    Gibberish. It won't hurt the supercharger in the slightest
    98 GTP 230K miles scrapped
    04 Comp G 180*, HAI, poly db's, zzp stb's, UMI ta's, Speedbuilt sways, DNA springs, Port and polished heads, S1X, sd headers.

  13. #13
    GT Level Member Green97GTP's Avatar
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    Default Re: 2003 grand prix towing

    lol,

    1. f-body brakes. with braided lines.
    2. trans cooler.
    3. trans temp gauge.
    4. springs in the rear to hold the weight.

  14. #14
    GXP Level Member slick2500's Avatar
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    Default Re: 2003 grand prix towing

    It was one of the mods on here that said that. Someone had asked about pulling a small trailer with their gtp.
    SMGPFC Member #14
    Silver 2001 GTP - Bottom Swapped, SD Headers, hi flow cat, AEM dryflow HAI, Green Bastard ported M90, Autolite 104's.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower

  15. #15
    SE Level Member David Austin's Avatar
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    Default Re: 2003 grand prix towing

    thanks guys. i was planning on doing air ride at least in the back and upgrading trans cooler to start and thanks for the 4th gear upgrade advice and im not removing the belt on the supercharger. doing that would cause a daming effect and allow less air to get into the engine then a NA 3800. i believe the main reason that towning isnt allowed on the GTP is because of the gear ratio difference between the se GT and the GTP

  16. #16
    GT Level Member Utter99's Avatar
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    I mistaken 2003 trannys have hardened 4 th clutch hub so your good to go. Now it's the forward bands to worry about
    MY LUGNUTS REQUIRE MORE TOURQE THAN YOUR HONDA PUTS OUT!!!

  17. #17
    GT Level Member tc300's Avatar
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    Default Re: 2003 grand prix towing

    I wouldnt tow anything with a grand prix...

  18. #18
    SE Level Member David Austin's Avatar
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    Default Re: 2003 grand prix towing

    i dont think im gonna tow anything just got back from a RV show and was curious. good to know about the 4th clutch hub thanks Utter99

  19. #19
    I live here. Scottydoggs's Avatar
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    Default Re: 2003 grand prix towing

    rv show, hell get a tow dolly for the gp and use it as a tow car. problem solved lol

    if you do get a trailer to tow. make sure it had trailer brakes, and hook them up, makes a huge difference when stopping. you can feel the trailer slowing you down.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails and a bone stock engine. http://www.grandprixforums.net/scott...-gs-47574.html

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