discuss close v wide ratio g/boxes

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  • Sleeper_Avant
    S2Forum Fiend
    • Mar 2009
    • 2372
    • Country: England

    #1

    discuss close v wide ratio g/boxes

    out of interest, whats your views on wide ratio v close ratio gearboxes?

    pro`s and con`s on both fronts

    my A4 runs 2.5TDi very long lazy ratios 6 sp and on a spreadsheet will do 226mph in 6th @ 7000rpm

    although this is amazing for long hauls and crossing the 1/4 mile in 3rd but dunno.......... hmmmmmmmm

    my URS4 1st was useless and may have just not been there IMO

    discuss
    1993 URS4 Avant Emerald Green 350+bhp
    1991 Ford Sierra Sapphire 4x4 in Magenta
    BoooOOOSSSSSTTTT BANG BANG CHIRP CHIRP
  • Jonnybravo
    S2Forum Fiend
    • Aug 2008
    • 2051
    • Country: United Kingdom

    #2
    Although the c/r 6 speed box has a close 1st gear I really don't find the other ratios "that" close, I suspect an ideal gearbox would be a mismatch of ratios as none really offer the perfect combination in standard form. That said a lot of it comes down to the power of the engine as relatively tall ratios don't seem that long on a 550hp motor as an example.

    Comment

    • herald
      S2Forum Fanatic
      • Apr 2011
      • 76
      • Country: United Kingdom

      #3
      Some of the modern 8 speed autos run nearly 50mph per 1000 rpm. *It gives massively better economy on a run. *I'd love a much taller 6th on my RS2, but happy with the first 5.

      Comment

      • 20Vcqdriver
        S2Forum Maniac
        • Jun 2007
        • 829
        • Country: United Kingdom

        #4
        My 3TDi 6 speed ratios are the worst I have come across on an Audi
        1st just about gets you to 20mph, 2nd no-where near 50. 3rd little more than 60, then a jump to 100 in 4th then another big gap to get you to 30mph/1000rpm in 5th and in 6th it jumps up again to achieve the 38mph/1000rpm. Wish I'd gone for the Auto version now. Rarely use 1st gear as I can actually get to 40 quicker starting in 2nd?!!!
        1986 Coupe q - 2281cc 3B, chargecooler, 2.75" exh & downpipe, ported head, water injection, CGR box, modified MD357 turbo, 440cc injectors, high power coil.
        2004 A4 2.5TDi convertible, re-mapped to 180bhp
        2011 A5 sportback 3TDi-Backbox delete, remap

        Comment

        • speeding-g60
          S2Forum Extremist
          • Aug 2008
          • 1186
          • Country: United States

          #5
          i ran the Euro TDI gearbox in the 1/4 and even revving to 8800+ i still had to shift to 4th gear. i could squeak by a 1/4 mile in third if i took 3rd gear to 9300, still trapped >137 this way. 10.05 @ 138-139 my best with it shifting to 4th. 600-650 AWHP 20v 4cyl big turbo 32psi Coupe Quattro.

          and all the 01E trans that i know of share the same exact first/second gearset, at 3.50 - 1.89.

          Comment

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