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Thread: 2.2S Engine Rebuild Opinions Wanted

  1. 12-21-2006, 10:20 PM #51
    gulf908
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    Chaps,

    All this talk about short gears makes me dizzy !!
    Why not just change the diff from 7:31 (?) to something shorter ?
    Wouldn't this close all the gears up and provide better acceleration and minimise the torque issue ?
    Years ago I read an article in Sports Car Graphic(May '63) on 356 gearing and two diffs were available - the standard 7:31 and a 6:31.
    Is something similar available on the 911 parts shelf?
    The days of doing over 200 kph here and in the US on public roads are gone forever - maybe gearing for 110 / 120 mph is more practical ?
    Just think of the sweet music !!

    Cheers,
    Dennis.
    1970 914-6 - materialised from the 'Lotto' garage into reality
    1971 2.2 911 S - now back in the UK - sob!
    1975 Carrera Targa (ROW) - missed.
    One of us is fast becoming a valuable antique.
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  2. 12-21-2006, 10:29 PM #52
    kenikh
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    Shorter gears are fine and dandy, but I many of us are also looking for better splits. AFMSZ is crap regarding gear splits regardless of differential, although a 6:31 on this gearset would mask deficiencies by making the car signicantly more lively.
    Kenik
    - 1969 911S
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  3. 12-21-2006, 10:37 PM #53
    schmidt
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    You need to hold a 6:31 pinion gear in your hand. It is the most frightening looking thing you have ever seen. No suprise they would fail in a 912 with 90hp, doubling the horsepower wont help. Gears are not for everyone.
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  4. 12-21-2006, 11:25 PM #54
    OliveR
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    6:32 was available for 911R
    #rennfrog
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  5. 12-22-2006, 10:05 AM #55
    schmidt
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    That is right, my mistake, a 6:32 not a 6:31. That makes it even worse.
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