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Gsr Or Si Tranny For B18b

Discussion in 'Engine Building' started by Unjockable, May 3, 2003.

  1. Unjockable

    Unjockable Junior Member

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    Is the GSR or SI tranny better for a LS motor? I heard the SI tranny is too short for the powerband of the LS but the GSR is perfect. SI tranny has short gears for acceleration but is it that much quicker then the GSR?
     
  2. Unjockable

    Unjockable Junior Member

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    :sleep:
     
  3. pissedoffsol

    pissedoffsol RETIRED

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    who ever told you that is wrong.
    get the Si, or better, the ITR tranny and if you can afford it, get a limited slip diff.
     
  4. JDMilan

    JDMilan Senior Member

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    Going NA you will want either a Si/ITR tranny, the problem with the Si is not LSD and also a smaller differential than 1.8 liter trannies. Go in this order for NA

    factory trannies

    1.JDM ITR (lsd)
    2.USDM ITR (lsd)
    3.JDM SiR (lsd)
    4.USDM Si/DelSol both from DOhc's
    4.JDM GSR (lsd)
    5.USDM GSR

    Better yet you can go with a this.

    Type R tranny
    Quaife 5.1 Final Drive
    Spool differential
    Custom Kaaz Gearing
    but, i don't think you want to spend over 4k

    don't go with anything else for a NA setup, the gearing is too long then.


    Milan
     
  5. pills_PMD

    pills_PMD Super Moderator

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    why would you buy a type R tranny if you are going to tear everything out of it anyway??
     
  6. lsvtec

    lsvtec GNU/Linux Evangelist

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    So you can donate the guts of the ITR tranny to science (me) and we can find out if the hydro internals work in a cable bell housing. :)
     
  7. JDMilan

    JDMilan Senior Member

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    Well you could part out the parts to get some funding back, I know the oem R gearing and lsd are worth some coin on the market, but i get your point :)

    Donating to science is logical also.


    Milan
     
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