Blown 540 spark plugs?
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Blown 540 spark plugs?

  1. #1
    Senior Member Smallblocksperry's Avatar
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    Default Blown 540 spark plugs?

    can anyone recommend a good set of spark plugs to use

    just got my motor all done, minus having to pull it back out saturday for an oil driveshaft issue that should be resolved this weekend

    wondering how hot of a plug to run

    540 9-1 short block
    .650" solid roller .252/[email protected] 114
    brodix BB2 alum. heads
    7-10lbs of boost/intercooled
    pump gas
    locked out timing 31 degrees
    MSD 6m ignition

    26' cat with 1.36 gear swinging a 4 blade 30P prop

    also oil, i planed on running valvoline VR1 20-50, i used a moroso billet one piece built in pickup oil pump
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  3. #2
    Some guy obnoxious001's Avatar
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    Probably an NGK 8

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    The above is probably correct, my engine is very similar, runs NGK 9. A bit cold but no fouling at idle and the engine is run under boost for long periods of time, so I continue to use them.

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    steelcomp was here
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    Quote Originally Posted by Smallblocksperry View Post
    can anyone recommend a good set of spark plugs to use

    just got my motor all done, minus having to pull it back out saturday for an oil driveshaft issue that should be resolved this weekend

    wondering how hot of a plug to run

    540 9-1 short block
    .650" solid roller .252/[email protected] 114
    brodix BB2 alum. heads
    7-10lbs of boost/intercooled
    pump gas
    locked out timing 31 degrees
    MSD 6m ignition

    26' cat with 1.36 gear swinging a 4 blade 30P prop

    also oil, i planed on running valvoline VR1 20-50, i used a moroso billet one piece built in pickup oil pump
    Uh oh...
    Last edited by scott foxwell; 08-09-2013 at 05:26 AM.
    If God is your co-pilot, change seats!
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    Some guy obnoxious001's Avatar
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    Quote Originally Posted by SFOcean View Post
    The above is probably correct, my engine is very similar, runs NGK 9. A bit cold but no fouling at idle and the engine is run under boost for long periods of time, so I continue to use them.
    I would say 9's are good for extended periods of time like yours.

    I have a turbo engine currently running almost daily at Parker, made 1075 HP on pump gas on the dyno, he switched to 8's after initially running 9's, but I suggested he switch to a set of 9's if he enters a race with a fast skier.

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    Member D Johnson's Avatar
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    Teague runs NGKR5671A-9 in my motors. I am changing them this weekend, last time they were changed was 2010 and only reason I am changing is I want to just because...
    Last edited by D Johnson; 08-08-2013 at 12:56 PM.

  9. #7
    Senior Member Smallblocksperry's Avatar
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    Quote Originally Posted by steelcomp View Post
    Uh oh...


    Uh oh ? Care to elaborate...

  10. #8
    steelcomp was here
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    Quote Originally Posted by Smallblocksperry View Post
    Uh oh ? Care to elaborate...
    You said the "VR1" word...
    If God is your co-pilot, change seats!
    Acts 2:38, the perfect answer to the perfect question.

  11. #9
    gn7
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    Quote Originally Posted by steelcomp View Post
    You said the "VR1" word...
    He could have said worse. At least he didn't add...'the best racing oil ever"



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  12. #10
    steelcomp was here
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    Quote Originally Posted by gn7 View Post
    He could have said worse. At least he didn't add...'the best racing oil ever"
    If God is your co-pilot, change seats!
    Acts 2:38, the perfect answer to the perfect question.

  13. #11
    Senior Member Smallblocksperry's Avatar
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    Quote Originally Posted by gn7 View Post
    He could have said worse. At least he didn't add...'the best racing oil ever"
    whats wrong with VR1? what would you recommend?

  14. #12
    gn7
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    Quote Originally Posted by Smallblocksperry View Post
    whats wrong with VR1? what would you recommend?
    Nothing is wrong with it. So long as you understand it is a 5.00 a qt conventional oil and not some extreme oil that some try to make it to be.



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  15. #13
    Led
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    i have ran VR1 before, no its not the best, but it was on the shelf in the shop, i run brad penn now
    if you have it run it,

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