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Thread: With my mods, which gear ratio should I go with? 3.27 or 3.45

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    Beyond Help JonnyG2132's Avatar
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    Default With my mods, which gear ratio should I go with? 3.27 or 3.45

    What do you guys think? Also where can I get what you recommend?

    Thanks
    Jon
    2008 NA G8 GT

    1/4 mile = 10.93 @ 123
    60' = 1.47
    DA = 500


    Naturally Aspirated-230/242 Cam-.030 Milled Heads-Valve Job-New Era Performance ECM/TCM tune-New Era Performance Ported Throttle Body-Vararam CAI-Rick Crawford Modified Intake Manifold-VMS HSRK-UD Pulley-MSD Plugs-4" MAF-Ram Air Plate-Circle D Triple Disk 4000-4200 245mm Converter-3.45 gears-1 7/8 American Racing Headers-Magnaflow mid muffler-SLP Lowering Springs in Rear-M&H Skinnies-Mickey Thompson ET Street Radials 295/45/17-Dark Star Rims

    - ARANGO AUTOMOTIVE & TOWING SERVICES, WEBSTER NY

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    Another stock mustang wnt2gofst's Avatar
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    I went 3.45s..I ordered from Greg@pace.. they are back ordered though..3/27 are availible..others with cams have got the 3.45s also..Devilish, charlie
    2014 Harley Davidson Street Bob-Vance and Hines Short Shot staggered.

    2013 F150 Ecoboost- Loaded and stock.

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    5OH TERMIN8R Devilish34's Avatar
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    2.92 to 3.27 isn't much of a jump so I'd say 3.45.

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    Beyond Help JonnyG2132's Avatar
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    how much do the 3.45s run?
    2008 NA G8 GT

    1/4 mile = 10.93 @ 123
    60' = 1.47
    DA = 500


    Naturally Aspirated-230/242 Cam-.030 Milled Heads-Valve Job-New Era Performance ECM/TCM tune-New Era Performance Ported Throttle Body-Vararam CAI-Rick Crawford Modified Intake Manifold-VMS HSRK-UD Pulley-MSD Plugs-4" MAF-Ram Air Plate-Circle D Triple Disk 4000-4200 245mm Converter-3.45 gears-1 7/8 American Racing Headers-Magnaflow mid muffler-SLP Lowering Springs in Rear-M&H Skinnies-Mickey Thompson ET Street Radials 295/45/17-Dark Star Rims

    - ARANGO AUTOMOTIVE & TOWING SERVICES, WEBSTER NY

  5. #5
    Moderator, Retired -Ray-'s Avatar
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    Quote Originally Posted by Devilish34 View Post
    2.92 to 3.27 isn't much of a jump so I'd say 3.45.
    ^This
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    5OH TERMIN8R Devilish34's Avatar
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    Quote Originally Posted by JonnyG2132 View Post
    how much do the 3.45s run?
    pm Greg from pace for shipping cost but mine was 1050+45 to ship
    Retiring as the undefeated Cam only Record Holder 11.454@120

    Come and get the title bitches it's up for grabs

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    5OH TERMIN8R Devilish34's Avatar
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    Quote Originally Posted by G8 Ray View Post
    ^This
    Ray other than sorting out the shift points so far so good. I ran a 11.82 at 116.9?? launched around 1k to a 1/2-3/4 throttle flash then rolled in to it the rest of the way. 60' was 1.75ish..1-2 shifted mid to upper 6k blah 2-3 shifted pre 6k blah not sure where the 3-4 hit be I wasn't watching the tach any more. I'd say just with the poor shifts there is another .2 and another .1 with a full flash at the line
    Retiring as the undefeated Cam only Record Holder 11.454@120

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    Senior Member SS DAVE's Avatar
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    go the 3.45,s although its only worth a tenth on the strip.the car is a lot more lively out of the corners.id have a look at ls1.com.au the 3.45 diffs come up for sale quite often as complete assemblies for 500 dollars with low miles,they are the standard diff with a manual and those guys usually go 3.7 or 3.9.it would be a cheaper way to go and you have the option of selling your diff or putting it back in the car when you sell it .

  9. #9
    Beyond Help JonnyG2132's Avatar
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    ok sounds good. Thanks. So gear with gear changes, people are only seeing a tenth at the track? I was thinking more like 2-3?
    2008 NA G8 GT

    1/4 mile = 10.93 @ 123
    60' = 1.47
    DA = 500


    Naturally Aspirated-230/242 Cam-.030 Milled Heads-Valve Job-New Era Performance ECM/TCM tune-New Era Performance Ported Throttle Body-Vararam CAI-Rick Crawford Modified Intake Manifold-VMS HSRK-UD Pulley-MSD Plugs-4" MAF-Ram Air Plate-Circle D Triple Disk 4000-4200 245mm Converter-3.45 gears-1 7/8 American Racing Headers-Magnaflow mid muffler-SLP Lowering Springs in Rear-M&H Skinnies-Mickey Thompson ET Street Radials 295/45/17-Dark Star Rims

    - ARANGO AUTOMOTIVE & TOWING SERVICES, WEBSTER NY

  10. #10
    Smells of Bacon... GeorgeInNePa's Avatar
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    Do I have to say it?
    2011 Kona Blue 5.0 Auto -->(Livernois 93Tune and DR only-11.880 @ 118.11, 1.827) - Lund Racing Tune - BOSS Intake - JPC LTs&OTA, O/R-X, GT500muffs - CircleD 4500 - DSS shaft - DA QA1s - J&M LCAs - JPC UCA/BMR mount - 295/50/16 MT DRs - JLT Catch Can (awaiting install UPR K, TSS oil pump gears)

    '08 Black on Black G8GT--> 12.166 @ 113.13, 1.723 Bolt 0ns and Converter --Gone, but not forgotten.--
    http://img.photobucket.com/albums/v3...a/gr_devil.gif
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