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Thread: Final drives

  1. #1
    Join Date
    Feb 2001
    Posts
    154

    Default Final drives

    Anyone got good info and contact numbers on what final drive to get for 90 crx?----OPM,KAAZ etc.?---4.6 --4.7 something.We run the midwest tracks--but I am more concerned with a final drive that works well at Road America--Road Atlanta.Or is the 4.6 to 4.7 span not that much of a difference?

    Help me

    Volante
    crx
    mid-div

  2. #2
    Join Date
    Sep 2002
    Location
    NS NY US
    Posts
    134

    Default

    CALL ANTHONY @914-669-9679 I HAVE FINALS IN STOCK FOR YOU CAR

  3. #3
    Join Date
    Sep 2001
    Posts
    241

    Default

    As an aside, I always thought 4.9:1 was the hot setup for CRX's, but I am coming to realize that 4.7:1 is the only commonly available "size".... is that correct?

    Jon

  4. #4
    Join Date
    Jun 2002
    Location
    Union, KY
    Posts
    7

    Default

    Back years ago when custom final drives were still pretty new, I knew a guy who had a 4.9 but said it was buzzing the hell out of his engine. He quickly switched to the 4.7 that mnost of the rest of us ran soon thereafter. I was always happy with the 4.7 at midwestern tracks so that is what I got for the EP/FP car.

  5. #5
    Join Date
    Feb 2001
    Location
    Medina ,Ohio
    Posts
    49

    Default

    Mr. Volante-
    I use the 4.73 final drive. I know that Dave Beyersdorf (nee King car), has a 4.73 final and owns the Lap record at RA.
    I challenged him on his ratio not long ago and when he told me he set the track record there with the 4.73 and I verified that, I dropped the topic.
    I use a Quaife (dealer), and the 4.73, OPM motorsports has the gears for 1000.00 right now. I just ordered one for a 89 crx si that is in my shop currently getting those two items.
    I hope this helps dispell the myth of the ratio rational...it will work good at Blackhawk where you like to run as well.
    Chris Stiffler
    (866) 438-3966
    Call me if you need any help Dave.



    ------------------
    http://www.Street-N-Track Autosports- owner
    ITA CRX Si #21
    Central Division SCCA

  6. #6
    Join Date
    Feb 2001
    Posts
    154

    Default

    I talked to Anthony in New York-He has the 4.73 that he pretty much started(OPM gets there's from him)I can send him my tranny and he will correctly install the gear,check everything else on it and send it back for about 1000 bucks,give or take.

    Dave Volante

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