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Thread: Steel xflow

  1. #1
    Bodger

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    Steel xflow

    Theoretical questions
    probably been asked a million times,on a standard 1600 xflow if I were to go all steel rods crank and forged Pistons what ideally would be the maximum rpm limit I should put?
    standard bottom end is ok for 6500?
    What size crank do I need I.e from burton or Wilcox etc is it the wide journal 77.65mm?
    and the Conroe size 5.23 wide?
    cheers

  2. #2
    Mechanic

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    Re: Steel xflow

    Short stroke xflow engines were revved to 10.000 rpm in the hot rod era !

    What is it for ?

  3. #3
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    Re: Steel xflow

    with good rod bolts even a standard bottom end will live with 7000 for a long while,

    an all steel engine should cope fine with 9-10K although you probably wont get any power that high up the rev range

  4. #4
    Bodger

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    Re: Steel xflow

    so an a8 camshaft would suit an all steel set up? any other cams that would go to around 9 k ?
    whats the difference between i section and h section rods?
    and 6 hole and 12 hole crank?
    thanks

  5. #5
    Spanner Monkey Mkdu's Avatar

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    Re: Steel xflow

    thisprofile are old school one, I had a A6, up to 8k.
    But nowadays, more modern profile exists said the engine builders...
    my steel crank has 6 bolts and 2 inserts

  6. #6
    Spanner Monkey

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    Re: Steel xflow

    Isn't the A8 the old hot rod profile, won't do a lot under 4500 if I remember correctly

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    Racer Decade Plus User Forest_rallying's Avatar

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    Re: Steel xflow

    A lot of the top Hot Rod engines in the late 70's had the Cosworth A8 profile cam in their engines.

  8. #8
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    Re: Steel xflow

    What do you want to use it for?

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