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Thread: do i need a mag?

  1. #1
    Senior Member SENIOR BUILDER
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    do i need a mag?

    BBC427, methanol injected, nat asp. 1/4 mile drag,

    do i need a magneto? :wink:

  2. #2
    Senior Member RACING JUNKIE
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    Nope you need a MSD unit with, anything from a 6AL to a 7AL3 box. More fire power and less HP drain than a Mag.

    JMO

    Zip.

  3. #3
    Senior Member SENIOR BUILDER
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    Quote Originally Posted by zipper06
    Nope you need a MSD unit with, anything from a 6AL to a 7AL3 box. More fire power and less HP drain than a Mag.

    JMO

    Zip.
    do you run methanol and a MSD unit? which box? no problems?

  4. #4
    Senior Member SENIOR BUILDER
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    I run a 7AL2 with a pro power coil on a 15:1 alky injected 434. On a couple of occasions it has fired a 15% tip of the can without issues.

  5. #5
    Senior Member SENIOR BUILDER
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    Quote Originally Posted by ccperf721p
    I run a 7AL2 with a pro power coil on a 15:1 alky injected 434. On a couple of occasions it has fired a 15% tip of the can without issues.
    what sparkplugs? how much gap?

  6. #6
    Senior Member RACING JUNKIE
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    Quote Originally Posted by maxpower671
    Quote Originally Posted by zipper06
    Nope you need a MSD unit with, anything from a 6AL to a 7AL3 box. More fire power and less HP drain than a Mag.

    JMO

    Zip.
    do you run methanol and a MSD unit? which box? no problems?
    With my 582 and alky injection, I ran a 6al, 7al2,7al3 and 7530t digital. No difference in et with any and they all did just fine.
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines
    www.apdracing.com

  7. #7
    Senior Member SENIOR BUILDER
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    thanks David....thats the kind of info i was looking for! gonna get my box checked out...

  8. #8
    Senior Member RACING JUNKIE
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    Quote Originally Posted by maxpower671
    Quote Originally Posted by ccperf721p
    I run a 7AL2 with a pro power coil on a 15:1 alky injected 434. On a couple of occasions it has fired a 15% tip of the can without issues.
    what sparkplugs? how much gap?
    NGK 8's set @ .024 gap, with a 6AL, same setting with 7AL2. I've never ran a 7AL3, so i don't know the difference.

    Zip.

  9. #9
    Senior Member SENIOR BUILDER
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    I run an autolite AR3934 @ .030

  10. #10
    Senior Member RACING JUNKIE
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    Quote Originally Posted by maxpower671
    Quote Originally Posted by ccperf721p
    I run a 7AL2 with a pro power coil on a 15:1 alky injected 434. On a couple of occasions it has fired a 15% tip of the can without issues.
    what sparkplugs? how much gap?
    AR3910s gapped at 30, Extended tip plugs, A lot of engines miss without them.
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines
    www.apdracing.com


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