View Poll Results: lower rpm for efficiency or higher RPM for power?

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  • low rpm

    3 75.00%
  • high rpm

    1 25.00%
Results 1 to 6 of 6
  1. #1

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    Transmission ratio

    My Question is to ask if anyone knows how to determine what ratios a 4t60 or 4t60e tranmission has, if they are indicated on the tranmission plate or spid?
    The reason i ask is that my:
    91 Lumina Euro ran 2000 rpm at 60 mph (god rest it's hulk)
    92 Lumina Sedan runs 2000 rpm at 72 mph(w Euro cluster)
    94 CS S runs 2000 rpm at 72mph 4t60e
    95 CS SL runs 2000 at 60 mph. 4t60e

    And needing a transmission for a 91 CS... I'd like to get the higher drive ratio 4t60 tranny from a junk car, (with no way to test drive):?

    I want the more efficient one, but also have no way to determine the deceased tranny's ratio


    BUILDER AND DESTROYER OF FINE(?) AMERICAN CARS.

  2. #2

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    Transmission ratio

    Why don't you just look at the RPO codes to decipher what was in the car.

    www.rpocodes.com
    <br />&#39;89 Olds Cutlass Ciera International coupe --&gt; L67 - M90 + 60-1 = <br />turbo conversion thread --&gt; http://www.w-body.com/forum/index.php/topic,54582.0.html<br />376whp/371wtq on 14 psi!!!

  3. #3

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    cool beans. thanks, and one follow up question too.

    Hey, I reviewed those once before, but I read them this time and discover:
    F16 : RATIO, TRANSAXLE FINAL DRIVE 2.53
    F17 : RATIO, TRANSAXLE FINAL DRIVE 2.84
    F25 : RATIO, TRANSAXLE FINAL DRIVE 3.32
    F29 : RATIO, TRANSAXLE FINAL DRIVE 2.82
    F47 : AXLE FRONT, 2 73 RATIO
    F62 : RATIO TRANSAXLE FINAL DRIVE 2.39
    F67 : RATIO, TRANSAXLE FINAL DRIVE 3.19
    F68 : RATIO, TRANSAXLE FINAL DRIVE 3.45
    F75 : RATIO, TRANSAXLE FINAL DRIVE 3.18
    F77 : RATIO, TRANSAXLE FINAL DRIVE 3.73
    F79 : RATIO, TRANSAXLE FINAL DRIVE 2.97
    FP0 : RATIO, TRANSAXLE FINAL DRIVE 2.55
    FP1 : RATIO, TRANSAXLE FINAL DRIVE 2.72
    FP2 : RATIO, TRANSAXLE FINAL DRIVE 3.58
    FP3 : RATIO, TRANSAXLE FINAL DRIVE 2.73
    FP5 : RATIO, TRANSAXLE FINAL DRIVE 2.95
    FP6 : RATIO, TRANSAXLE FINAL DRIVE 3.54
    FP7 : RATIO, TRANSAXLE FINAL DRIVE 3.73
    FP8 : RATIO, TRANSAXLE FINAL DRIVE 3.54
    FQ1 : AXLE FRONT, STD RATIO
    FQ2 : RATIO, TRANSAXLE FINAL DRIVE 3.48
    FQ6 : RATIO, TRANSAXLE FINAL DRIVE 4.12
    FQ8 : RATIO, TRANSAXLE FINAL DRIVE 2.96
    FQ9 : RATIO, TRANSAXLE FINAL DRIVE 3.21
    FV0 : RATIO, TRANSAXLE FINAL DRIVE 3.67
    FV1 : RATIO, TRANSAXLE FINAL DRIVE 3.72
    FV3 : RATIO, TRANSAXLE FINAL DRIVE 3.11
    FV4 : RATIO, TRANSAXLE FINAL DRIVE 3.71
    FVO : RATIO, TRANSAXLE FINAL DRIVE 3.67
    FW2 : RATIO, TRANSAXLE FINAL DRIVE 3.06
    FW3 : RATIO, TRANSAXLE FINAL DRIVE 4.02
    FW4 : RATIO, TRANSAXLE FINAL DRIVE 3.89
    FW5 : RATIO, TRANSAXLE FINAL DRIVE 4.10
    FW6 : RATIO, TRANSAXLE FINAL DRIVE 3.42
    FW7 : RATIO, TRANSAXLE FINAL DRIVE 3.83
    FW8 : RATIO, TRANSAXLE FINAL DRIVE 4.28
    FW9 : RATIO, TRANSAXLE FINAL DRIVE 3.43
    FWS : RATIO, TRANSAXLE FINAL DRIVE 4.10
    FX1 : RATIO, TRANSAXLE FINAL DRIVE 3.94
    FX2 : RATIO, TRANSAXLE FINAL DRIVE 2.66
    FX4 : RATIO, TRANSAXLE FINAL DRIVE 3.35
    FX8 : RATIO, TRANSAXLE FINAL DRIVE 3.61
    FY1 : RATIO, TRANSAXLE FINAL DRIVE 2.36
    FY3 : RATIO, TRANSAXLE FINAL DRIVE 3.79
    FY5 : RATIO, TRANSAXLE FINAL DRIVE 3 52
    GX3 : RATIO,TRANSAXLE FINAL DRIVE 3.33
    GYS : RATIO TRANSAXLE FINAL DRIVE 3.65

    thats what I'm hoping for! Kick asss! however...... If i go to the boneyard and they have loose tranies....... does anyone know if the metal tag on the trannywould tell you on it too?
    -ken
    Sadly most of my spid are absent, time to contact gm for those


    BUILDER AND DESTROYER OF FINE(?) AMERICAN CARS.

  4. #4

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    Transmission ratio

    Don't bother contacting GM about your SPID, just go to your local dealer and they'll print you off a detailed sheet for free.
    1994 Pontiac Grand Prix SE sedan

  5. #5

    Transmission ratio

    Oops.....double post
    1999 Dodge Neon R/T: Is MINE now.........WTF?? Maybe I DO have a working car for autoxing after all!<br /><br />1997 Honda Prelude SH: Still going tap-tap, and still being abused......8000rpm is good for it, I SWEAR.<br /><br />1993 Nissan Sentra SE-R: The parts and organ donor has appeared but has yet to be used.<br /><br />1992 Nissan NX2000: Rusting quietly while I try to figure out if a Bluebird long-block is really worth it.<br /><br />1991 Pontiac Grand Prix: Currently in 4th gear due to a shift-cable malfunction, but I&#39;m so lazy it may NEVER get resurected AGAIN.

  6. #6

    Transmission ratio

    I'll bet plenty of cash that all 4 of your cars have a 3.33 axle ratio (what all 4T60/60-E LHO's and L82's got).....................

    The rpm differences are probably due to differences in the state of TC lockup.
    1999 Dodge Neon R/T: Is MINE now.........WTF?? Maybe I DO have a working car for autoxing after all!<br /><br />1997 Honda Prelude SH: Still going tap-tap, and still being abused......8000rpm is good for it, I SWEAR.<br /><br />1993 Nissan Sentra SE-R: The parts and organ donor has appeared but has yet to be used.<br /><br />1992 Nissan NX2000: Rusting quietly while I try to figure out if a Bluebird long-block is really worth it.<br /><br />1991 Pontiac Grand Prix: Currently in 4th gear due to a shift-cable malfunction, but I&#39;m so lazy it may NEVER get resurected AGAIN.

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