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  1. #11
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    Quote Originally Posted by Mirek View Post
    Back in 1970' everything was different. 4WD cars were forbidden in rallying, everybody used sports cars and the air-cooled engines of Porsches were good for endurance events. Just one little thing was enough to make things upside down - to allow 4WD.
    I think the big change was the thing that created the need for dividing up the power and spreading it out to 4 wheels, and that change was this:




    Saab could not compete on equal footing with the all conquering Group 4 Ford Escorts with the great Cosworth BDG even with their 16v head---only 235 bhp vs 252-262 for BDG---mainly they figured from having a much heavier car so they added one of these:
    (lurking behind the waste-gate)


    And made TONS more torque....and then discovered very quickly that the housing for the gearbox was far far far too weak..
    I am good friends with the engine builder at Saab from those days and have staying at his house several times.
    Massive torque drove the need for more than 2 wheels driving..

    Only then did the extra weight and problems of 4wd make sense.

    Whatever the history, regarding these refugees from the circuits, I don't understand the fascination. They are clearly way way in excess of what is needed..too brutal delivery and so guys driving are too timid. They could de-tune a bit and go faster.
    Last edited by janvanvurpa; 3rd September 2015 at 16:40.
    John Vanlandingham
    Sleezattle WA, USA
    Vive le Prole-le-ralliat

  2. Likes: Gregor-y (3rd September 2015),Jarek Z (3rd September 2015),Jeppe (3rd September 2015),lewalcindor (3rd September 2015),Mirek (3rd September 2015),pantealex (3rd September 2015),stefanvv (3rd September 2015)

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