Thread: Performance lacking?

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  1. #21 Re: Performance lacking? 
    Moderator dsmuts's Avatar
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    with ported heads and a cam you should easily be able to run at the very least a 3.4
    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
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  2. #22 Re: Performance lacking? 
    The Blue One blueguy's Avatar
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    Quote Originally Posted by Z34Phoenix View Post
    or stay with the 3.5 and run more timing in the tune.
    There is a point where your maxing out the WOT advance...and you aren't gaining anymore power...think, 23-25* on a blower car.

    I ran 23*...car pulled like a rabbid ass ape.

    On a 3.0"...

    Regardless, I'd run a 3.2"~ pulley and 18-20* at WOT...that way you should be able to put down a solid...what...40-ish TQ dropping a quarter of an inch in pulley size.
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  3. #23 Re: Performance lacking? 
    GTX Level Member TEK310's Avatar
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    Quote Originally Posted by bluegtp91 View Post
    There is a point where your maxing out the WOT advance...and you aren't gaining anymore power...think, 23-25* on a blower car.

    I ran 23*...car pulled like a rabbid ass ape.

    On a 3.0"...

    Regardless, I'd run a 3.2"~ pulley and 18-20* at WOT...that way you should be able to put down a solid...what...40-ish TQ dropping a quarter of an inch in pulley size.

    anyone else have anything to chime in on this?

    my stock fueling system should be able to handle a 3.2 correct?
    2012 Competition Orange Boss 302 #1769 438rwhp 391rwtq
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  4. #24 Re: Performance lacking? 
    The Blue One blueguy's Avatar
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    I ran a 3.25" on stock injectors no problem...if that helps.

    Every car is a little different...some cars have run static on a 3.25", hell...some on a 3.4" with aggresive enough tuning...then other cars have ran a 3.1".

    It's hit and miss.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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    '89 Ford Mustang LX Notchback - LM7 5.3, 4L80, 9", HX40
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