Thread: Question about current topswap

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  1. #1 Question about current topswap 
    GTP Level Member BlackGT97's Avatar
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    I am currently topswapping my 98GT, I have it down to the block right now. But it seems that from 97-99 they used the same MAP sensor for both the SC and NA motors, but in 2000 they switched the Map sensor for the SC version. So is it ok to run the MAP sensor off of my NA motor?
    1997 Grand prix GT Black Coupe- The beater
    1998 Grand prix GT Black coupe- Top swapped, XP cam
    2008 Grand prix Midnight blue- The slow but nice car
    1999 Chevrolet Silverado red ext. Cab
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  2. #2 Re: Question about current topswap 
    I live here. MoarkatsINmuhtrailer's Avatar
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    No.
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  3. #3 Re: Question about current topswap 
    Moderator dsmuts's Avatar
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    pretty sure the map sensor is different from sc to na.
    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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  4. #4 Re: Question about current topswap 
    GTP Level Member BlackGT97's Avatar
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    Well the part numbers from autozone are the same, but i checked again and they do have the 1 bar map listed for the SC model too so IDK lol
    1997 Grand prix GT Black Coupe- The beater
    1998 Grand prix GT Black coupe- Top swapped, XP cam
    2008 Grand prix Midnight blue- The slow but nice car
    1999 Chevrolet Silverado red ext. Cab
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  5. #5 Re: Question about current topswap 
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    then that parts listing is probably incorrect.

    The L67 received the brick 2 bar MAP.

    The L36 had one in the UIM.

    You need the right MAP for the BIN that's on your PCM.
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  6. #6 Re: Question about current topswap 
    GTP Level Member BlackGT97's Avatar
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    Coming straight from the man at zzp, the 1 bar MAP WILL read boost, up to around 7 pounds so idk
    1997 Grand prix GT Black Coupe- The beater
    1998 Grand prix GT Black coupe- Top swapped, XP cam
    2008 Grand prix Midnight blue- The slow but nice car
    1999 Chevrolet Silverado red ext. Cab
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  7. #7 Re: Question about current topswap 
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    A 1 bar MAP cannot read past 1 bar absolute, which is zero boost.

    Find out what bin will be on your pcm, then buy the MAP sensor for that car.
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