speed limiter with 3.73's - FirebirdV6.com/CamaroV6.com Message Board

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  • speed limiter with 3.73's

    at what MPH will that be?
    1999 White Ford SVT Lightning.<br /><br />Hoping to dyno @ 450hp/550tq by the end of \'04.

  • #2
    depends on what ur car is programmed for- 3.08, 3.23, or 3.42 just subtract the difference between the two (ie 3.73-3.08=.65) and then divide that by the original (.65/3.08) and that gives about a 21% speedo error, so if it says 100, youre doing 79. if it says 118, youre actually doing 94, if you had 3.08s to begin with.
    3.23's would be 100 on the dot and 342s would be around 107 or 108
    98 Jeep Grand Cherokee 5.9 Limited<br /><br /><br />MODS:<br />180* t-stat, K&N FIPK, mopar ECU,<br />mike leach long tube headers+3\" y-pipe, 3\" all the way out flowmaster 50 series, mopar magnum 2bbl m1 intake manifold, APS 52mm throttle body, powerslots, 2 JL 10w3\'s

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    • #3
      i run anywhere between 98 and 102 depending on if im goin down hill or not...i had 3.23's stock
      <b>Black</b> 1998 Pontiac <i>Firebird</i> A-4 swap<br />271.4rwhp/259.4rwtq NA<br />13.30@102.44 <br /><a href=\"http://www.freewebs.com/wickedsix98\" target=\"_blank\">www.freewebs.com/wickedsix98</a>

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      • #4
        i went to 3.73's from 3.08 and my speed limiter hits at about 85
        you can\'t get off if you don\'t get on

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        • #5
          has anybody tried the slp speed calibrator? Would that fix the speed limiter issue?

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          • #6
            i bought it thinking it may but it only fixes the speedo and odometer...
            <b>Black</b> 1998 Pontiac <i>Firebird</i> A-4 swap<br />271.4rwhp/259.4rwtq NA<br />13.30@102.44 <br /><a href=\"http://www.freewebs.com/wickedsix98\" target=\"_blank\">www.freewebs.com/wickedsix98</a>

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