Thread: 3.8 super charger conversion

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  1. #1 3.8 super charger conversion 
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    Hello. New to the site and new the world of grand prix's so I thought id join so i can start to learn about these great cars. First question I have is I found a 98 grand prix body real good condition but has a bad 3.8 non-super engine. How hard would it be to add a super charged engine for the replacement? What other parts would I need other then of course the engine all the help I can get would be great. Oh the car is for sale for $700 but im sure I can talk the guy down due to prolly having to tow it home.
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  2. #2 Re: 3.8 super charger conversion 
    GXP Level Member JoRoW99's Avatar
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    Whats wrong with the engine in it? And i dont think it would be too bad, you will nee either an L67 (supercharged engine) wiring harness or a map sensor extension which you can find and wbodystore or zzperfomance. You will also need a custom tune since the gear ratio in the GT transmission is different from the one programmed into the GTP PCM.
    '01 GT - Top swapped. ported SC/Heads/TB, SD headers, open cone, HPTuners, 3.4 MPS, 60#'s, E85.______________________SMGPFC #99_______________________
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  3. #3 Re: 3.8 super charger conversion 
    Moderator dsmuts's Avatar
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    I have a L67 i'd sell you. Complete except fuel injectors.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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