NHRA Legal MSD Timing Control

Discussion in 'Manton Push Rods Top Alcohol Tech Questions' started by nitrohawk, Dec 2, 2006.

  1. Beal TAD519

    Beal TAD519 Member

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    Re-read your post. Two lines above the bold part says "2007 IHRA updates" not the NHRA.
     
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  2. Sportsman

    Sportsman TA/FC

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    Oops, this is what NHRA says:



    CONTROL OF STARTING LINE RPM IS PROHIBITED BY THE FIFTH SENTENCE OF THE SECOND PARAGRAPH OF THE TRANSMISSION SECTION OF TAD (WHICH ALSO APPLIES TO TAFC); PAGE 150 OF THE 2007 RB, PAGE 146 OF THE 2006 RB. THIS IS IN A PARAGRAPH THAT DEALS PRIMARILLY WITH TORQUE CONVERTER EQUIPPED CARS BUT IT APPLIES TO ALL CARS. IF YOU DESIRE THE 8971 MSD CAN PROVIDE IT WITH THE RPM LIMITING DEVICE DISABLED. HOWEVER; IT DOES NOT HAVE AS MUCH CAPABILITY AS THE 8973.
     
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  3. bryanbrown

    bryanbrown Member

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    so, we can't use the rev limiter at the launch? would a converter itself be considered a rev limiter? how is nhra going to police which functions of the 8973 are used? that's gonna be a little difficult
    bryan
     
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  4. Mike Canter

    Mike Canter Top Dragster

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    I can tell you this...on our blown ProMod there is no doubt that it is on a rev limiter on launch. It is going blat, blat, blat, blat. It would be hard to hide.
     
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  5. Nitrofish4700

    Nitrofish4700 New Member

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    #45

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