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Thread: Technical specs for the cam in the M30??

  1. #1
    Join Date
    Dec 2003
    Posts
    1,639

    Default Technical specs for the cam in the M30??

    Does anyone have the technical specifications for the stock M30 b35 camshaft?

    Bill - is this Boring Guy Stuff?

    I'm looking for the following:

    intake and exhaust lobe valve opening angles for 050 lift
    intake and exhaust lobe valve closing angles for 050 lift
    degrees of lobe separation
    not as important but interesting - max valve lift

    I'm assuming these are symmetric lobes, correct?

    Thanks!

    Jeff
    Bellevue WA
    90 535iM - not much stock remains. 3.7 liters, ported head, cammed, 3.73 diffy, M5 brakes, MAFed, yadda yadda yadda
    86 Porsche 951 - Track Toy

  2. #2
    Join Date
    Jan 2004
    Posts
    4,148

    Default Nope, I don't have it in the boring guy stuff, but if you find out let me

    know too if you don't mind.... intake lift, exhaust lift, duration intake and exhaust, overlap exhaust, and they look like symmetric lobes to me... If you guys have a spare cam you could degree it out yourselves and meaure the lift and duration....All you need would be to mark off the cam gear in degrees, some v Blocks to set the cam in on a flat surface and a dial indicator that would measure in .001 inches up to say 1 inch of travel...






    Quote Originally Posted by Jeff N.
    Does anyone have the technical specifications for the stock M30 b35 camshaft?

    Bill - is this Boring Guy Stuff?

    I'm looking for the following:

    intake and exhaust lobe valve opening angles for 050 lift
    intake and exhaust lobe valve closing angles for 050 lift
    degrees of lobe separation
    not as important but interesting - max valve lift

    I'm assuming these are symmetric lobes, correct?

    Thanks!

    Jeff

  3. #3
    Join Date
    Dec 2003
    Posts
    1,639

    Default No spare cam...

    Someone's got to have them...I'll see what the UUCdigest guys might suggest for resources....
    Bellevue WA
    90 535iM - not much stock remains. 3.7 liters, ported head, cammed, 3.73 diffy, M5 brakes, MAFed, yadda yadda yadda
    86 Porsche 951 - Track Toy

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