Those who went from 3.42 to 3.73... - FirebirdV6.com/CamaroV6.com Message Board

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  • #1

    Those who went from 3.42 to 3.73...

    Do you feel it even better? I've been debating whether or not to do this. Maybe if I hear some feedback I might become convince.

    Mostly I would like to hear what the advantages and disadvantages. I know it will mess up your speedo and gas mileage but by how much?

    Thanks guys

    1998 Firebird . 1989 Firebird XS . 1986 Fiero GT
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  • #2
    I felt a little difference. I'd say it was worth about .15 at the track
    Keith - Chicago<br /><a href=\"http://www.hptuners.com\" target=\"_blank\">HP Tuners - PCM Reprogramming</a><br /><a href=\"http://www.dxsoftware.com/magnus/\" target=\"_blank\">97 Firebird V6 to LS1 swap</a><br /><b>V8 9.967@132.78</b> 1.322 60\' NA Heads/Cam<br /><b>V8 10.295@128.48</b> 1.363 60\' NA Cam Only<br /><b>V8 10.987@119.31</b> 1.422 60\' NA Stock Internals<br /><b>V6 13.674@98.22</b> NA<br /><b>V6 12.394@104.91</b> N20 100HP

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    • #3
      Well, I do not have experience from 342's to 373's but I do have 342's to 323's and there was a significant difference.
      The main thing is 1 gear ratio change either way.
      I would guess that it would be a noticable gain in the buttometer.
      Race car - gone but not forgotten - 1997 firebird V6
      nitrous et & mph: 12.168 & 110.95 mph, n/a 13.746 & 96.38 mph
      2013 Dodge Challenger SRT8: 12.125, 116.45
      2010 Ford Taurus SHO: no times yet

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