Gear Ratio

Discussion in 'PSI Superchargers Tech Questions' started by Neil Favro, Feb 22, 2004.

  1. Neil Favro

    Neil Favro New Member

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    New to the TA/FC business so i need alot of help.
    I will be runing a 4.5 stroke 4.310 Bore with BAE 5 heads and a PSI D. I still haven't picked up a Trans and I'm not sure about what Gear Ratio i would use. I'll be runing in DIV 7. So i really need some help!
     
    #1
    Neil Favro, Feb 22, 2004
  2. tmfc274

    tmfc274 super comp

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    did you get a bible with the psi.
    its all in there .
     
    #2
    tmfc274, Feb 22, 2004
  3. Neil Favro

    Neil Favro New Member

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    No i bought the PSI used so no book!
     
    #3
    Neil Favro, Feb 22, 2004
  4. Harry Rydbom

    Harry Rydbom Member

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    Neil;I run 4:30 rear,1:55 low gear in trans.It depends on what the air is!!!! ;)
     
    #4
    Harry Rydbom, Feb 22, 2004
  5. Tommy

    Tommy Super Comp

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    HOPE U HAVE A LOT OF CLUCH DISKS
     
    #5
    Tommy, Feb 22, 2004
  6. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    1.64-1.68 should get you started. hard to say without knowing alot of other factors.

    i'm not a funny car guy, but those ratios should allow you to hop it up for a good track and back it down for a bad track.

    maybe a fc guy could help out more!
     
    #6
    Will Hanna, Feb 22, 2004
  7. Gerry Woz

    Gerry Woz Comp Eliminator

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    1.55....all I can say is "WOW"...what did you run before the blower overdrive restrictions? [​IMG]
     
    #7
    Gerry Woz, Feb 24, 2004
  8. M Tigges

    M Tigges TAFC

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    160 to 164 if you no how,156 div tracks..we gone 5.85 with the roots with 1.72
     
    #8
    M Tigges, Feb 25, 2004
  9. Dave Germain

    Dave Germain New Member

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    Somewhere between 1.60 and 1.72 with a 4.30 rear gear and Hoosier tires. The lower the number for the looser the race track.
     
    #9
    Dave Germain, Mar 12, 2004

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