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

what power does the s3 lose through the transmission?

Discussion in 'A3/S3 Forum (8L Chassis)' started by edward_harris, Mar 23, 2007.

  1. edward_harris
    Offline

    edward_harris s3 gone now a shiney red evo 6

    Joined:
    Jan 11, 2007
    Messages:
    1,061
    Likes Received:
    2
    [Mar 23, 2007]
    i no my mates scooby runs 330 bhp and 230bhp at the wheels so he is loosing 100bhp what does the s3 lose?
    #1
  2. Ads

    Ads

    [Oct 21, 2014]

  3. ChriS3
    Offline

    ChriS3 hud at ye bam

    Joined:
    Jan 25, 2006
    Messages:
    2,235
    Likes Received:
    13
    [Mar 23, 2007]
    Its vairable with revs - the more rpm, the higher the transmission losses. At about 5500-6000rpm you'll loose about 70-80bhp, it then starts to climb. I have 110bhp losses at 6600rpm.
    #2
  4. edward_harris
    Offline

    edward_harris s3 gone now a shiney red evo 6

    Joined:
    Jan 11, 2007
    Messages:
    1,061
    Likes Received:
    2
    [Mar 23, 2007]
    wow!! so if there was traction and you were giving it some would it go to 4wd? other wise on a dry day wih loads of traction it would just stay fwd and you wouldnt lose so much would you?
    #3
  5. ChriS3
    Offline

    ChriS3 hud at ye bam

    Joined:
    Jan 25, 2006
    Messages:
    2,235
    Likes Received:
    13
    [Mar 23, 2007]
    If you have a look at the bottom line of my dyno plot, you can see the transmission loses building up with the revs.

    [​IMG]
    #4
  6. simch
    Offline

    simch Active Member

    Joined:
    Feb 22, 2004
    Messages:
    2,028
    Likes Received:
    1
    [Mar 23, 2007]
    Its so confusing, hence many 4wds are set up in 2wd mode. I saw a RR day at AMD, (RIP!!) and the R32 owners were so miffed that their power at the wheels was only like 135hp! Stock PD150s were making 140+!
    #5
  7. A3-frankie
    Offline

    A3-frankie Member

    Joined:
    Aug 30, 2006
    Messages:
    118
    Likes Received:
    0
    [Mar 23, 2007]
    When i whent to a rolling road day they said a general rule is around 30%. Dont know if thats just FWD or not.
    #6

Share This Page