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Thread: S2000 gearing

  1. #1
    Old timer craZee's Avatar
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    Default S2000 gearing

    What are you S2000 guys running for rearend gears at the track? I have a 3:90 in my Datsun now but have a chance to pick up a 4:3X. I would think with a lower torque engine and 6 speed transmission that the lower diff gearing would be beneficial.

    Thoughts?

    Motor, transmission all in place. I have a friend bringing his S2000 over this weekend so I can see what some stuff is supposed to go to

    craZee
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  2. #2
    "Shoe"
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    Get the 4.3X

    The stock S2K has a 4.10 Final drive. What year motor/trans do you have?

    AP1:

    1st: 3.133
    2nd: 2.045
    3rd: 1.481
    4th: 1.161
    5th: 0.970
    6th: 0.810
    - better for track.
    Secondary gear reduction: 1.160
    Final drive: 4.100
    Reverse: 2.800

    AP2:

    1st: 3.133
    2nd: 2.045
    3rd: 1.481
    4th: 1.161
    5th: 0.943
    6th: 0.763
    - Better fuel economy/lower RPM on freeway.
    Secondary gear reduction: 1.208
    Final drive: 4.100
    Reverse: 2.800


    4.44's are popular while 4.77s will be more beneficial on track, it will compromise the cruising RPM which might or might not be worth it for you.



    Billy

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    Hey Billy -

    I tried to send you a PM with this question, but your PM Inbox is full here.

    I just bought the JRZ RS Pro double-adjustable coil overs with remote reservoirs for my AP1, with 750 lb./sq.in. springs Square and top hats.

    I was told that you think this is a great set-up for the S2K. Is that true?

    I haven't had it installed in the car yet. It's on its way here from Holland and Darrin at West End Alignment will be doing the installation, set-up and alignment.

    Thanks. Sorry you didn't get to drive at the 24 hours at Sebring.
    The deposed former Sheriff of trackHQ . . .

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    Captain Planet tq3z's Avatar
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    Quote Originally Posted by Richard EVO View Post
    Hey Billy -

    I tried to send you a PM with this question, but your PM Inbox is full here.

    I just bought the JRZ RS Pro double-adjustable coil overs with remote reservoirs for my AP1, with 750 lb./sq.in. springs Square and top hats.

    I was told that you think this is a great set-up for the S2K. Is that true?

    I haven't had it installed in the car yet. It's on its way here from Holland and Darrin at West End Alignment will be doing the installation, set-up and alignment.

    Thanks. Sorry you didn't get to drive at the 24 hours at Sebring.
    Pair it with a large front sway bar and I think you'll be set Richard! Looks pretty solid to me!

    Also run non-staggered =P
    Do you understand?

  5. #5
    Old timer craZee's Avatar
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    Default S2000 gearing

    Thanks for the info. It is an AP2 motor and transmission

    craZee

  6. #6
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    Quote Originally Posted by Richard EVO View Post
    Hey Billy -

    I tried to send you a PM with this question, but your PM Inbox is full here.

    I just bought the JRZ RS Pro double-adjustable coil overs with remote reservoirs for my AP1, with 750 lb./sq.in. springs Square and top hats.

    I was told that you think this is a great set-up for the S2K. Is that true?

    I haven't had it installed in the car yet. It's on its way here from Holland and Darrin at West End Alignment will be doing the installation, set-up and alignment.

    Thanks. Sorry you didn't get to drive at the 24 hours at Sebring.
    Email me at FXMDBilly@gmail.com.

    Is that Mr. Novak's setup? Will you have a wing/which one? What tire compound and size? Power level?


    Billy

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    momofoolio Racing momofoolio's Avatar
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    Billy, so 4.77 is more beneficial on track than 4.44?
    does that mean I will be taking buttonhook in 3rd gear and 6th gear after riverside before magic mtn??
    probably even top out at acs???
    momofoolio Racing - http://momofoolio.webs.com

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  8. #8
    "Shoe"
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    Quote Originally Posted by momofoolio View Post
    Billy, so 4.77 is more beneficial on track than 4.44?
    does that mean I will be taking buttonhook in 3rd gear and 6th gear after riverside before magic mtn??
    probably even top out at acs???
    In general: if you don't top out, go with the tallest final drive you can. It's all torque multiplication and rear end gears are with you at every second of acceleration. There might be some situations where topping out is worth the tradeoff, as well as other occasions where taller final drive will hurt you, but the overwhelming majority: increasing final drives is good. The S2K has good gear spreads so go for it. Other cars aren't as good due to focus of fuel economy.

    Not sure if buttonhook will be in 3rd - have to do the math with tire diameter, gear ratio and final drive.

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