1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Final Drive

Discussion in 'Engine Building' started by YangpaNemsay, May 26, 2003.

  1. YangpaNemsay

    YangpaNemsay Senior Member

    Messages:
    682
    Likes Received:
    0
    Joined:
    Nov 12, 2002
    Location:
    Okinawa, Japan
    I know that Final Drives are supposed to increase acceleration while lowering the top speed of a vehicle, but is it the higher final drive the more acceleration or the lower final drive the more acceleration?
     
  2. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

    Messages:
    30,015
    Likes Received:
    3,945
    Joined:
    Sep 28, 2002
    Location:
    CT
    higher number faster acceleration
     
  3. Viperlocc_B18C1

    Viperlocc_B18C1 Senior Member

    Messages:
    115
    Likes Received:
    0
    Joined:
    Mar 3, 2003
    Location:
    Madison, WI
    u ever play GT2 or 3? and how if u get a full customization tranny/lsd? well that game is supposed to be as close as the real thing as possible. but the lower the nbr the faster accel, and the higher the nbr the more top end youll get. and im not just saying that because its in a game but from actually research and rebuilding of tranny
     
  4. chet

    chet Senior Member

    Messages:
    888
    Likes Received:
    0
    Joined:
    Sep 30, 2002
    Location:
    st petersburg, florida
    viperlocc: i think you are confused.

    typically, for the best acceleration you want to be at the top of 4th gear at the end of the 1/4 mile. at least this is what several fo my friends who drag race competively say is the best for honda b-series setups.

    the higher the final drive ie 4.7 gives the motor better mechanical advantage over 4.4 final drive. while this is almost always good when using bigger wheels/tires this can also work against the driver if the setup has too much torque. then there will be wheelspin and too much mechanical advantage.
     
  5. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

    Messages:
    30,015
    Likes Received:
    3,945
    Joined:
    Sep 28, 2002
    Location:
    CT
    heres some comparisons for you:
    same trannys different final drives


    Integra Type R U.S. spec & Civic Si (stock 4.400 final drive)
    .........RPM........ Gear........ Final........ Km/h........ Mile/h
    5th... 8,000..... 0.8480..... 4.4000.... 236.31..... 146.87


    Integra Type R U.S. spec & Civic Si with ATS 4.929 final drive
    .........RPM........ Gear........ Final........ Km/h........ Mile/h
    5th... 8,000..... 0.8480..... 4.9290.... 210.95..... 131.10



    (information from ATS USA, inc )
     
Verification:
Draft saved Draft deleted

Share This Page