roller cam gear.... which one do i need?

Discussion in 'Technical' started by mean_maverick, Apr 22, 2008.

  1. mean_maverick

    mean_maverick Senior Member

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    just got back from the machine shop where they pointed out that the roller cam gear would NOT fit my old distrbutor shaft. what is everyone running in their late model engine???
     
  2. newtoford

    newtoford Member

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    someone told me to go to autozone and get a 1985 manual mustang dizzy for $55+core. it works with the roller cam and the DSII ignigtion already in the car
     
  3. Corbin Johnson

    Corbin Johnson Member

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    I was running a bronze gear because that was all that was available when I did the swap, but that wore out pretty fast. They now make the hardened steel gears to use with the roller cam and the original distributor and this is what I am running now. I believe the one I have is this one: http://store.summitracing.com/partdetail.asp?part=MSD-85833&view=1&N=700+150+
    A few different companies make them.
    -Corbin
     
  4. svthauln

    svthauln Member

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  5. scooper77515

    scooper77515 No current projects.

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  6. Halebopp

    Halebopp Member

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  7. mean_maverick

    mean_maverick Senior Member

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    i just ordered a dizzy for an '85 Stang from the local Advance.... Thanks guys! :)
     
  8. dmhines

    dmhines Dixie Maverick Boy

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  9. Halebopp

    Halebopp Member

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    Can somoone tell my a roller cam is better than a regular cam? sorry a bit off topic but I'm tryign to figure why they are so popular
     
  10. Mavman72

    Mavman72 Gone backwards but lookin' forward

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    Faster lift rates(valve opening/closing)Less frictional losses in valve train due to roller components.More stability at higher rpm due to less friction(less valve stability though)Need valve springs that can handle the opening and closing rates.godd for engines you want to rev above 6000 rpm.
     
  11. Halebopp

    Halebopp Member

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    I'm very confused on this what you described makes me think of roller tips for rockers, but that's not what you are saying right, What are the roller components? Someone told me my 89 motor is a roller motor, but then someone said that doesn't mean roller rocker tips?? Soprry to be so dull on this but I am just tryign to get a handle on this.
     
  12. maverick1970

    maverick1970 MCG State Rep

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    Roller motor means it has roller lifters.
     
  13. Halebopp

    Halebopp Member

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    the lifters have a roller on them? picts?
     
  14. maverick1970

    maverick1970 MCG State Rep

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  15. Mavman72

    Mavman72 Gone backwards but lookin' forward

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    Yes the bottom of the lifter has a wheel on it(roller)instead of being flat like a regular lifter.Same concept as a roller rocker.Roller cams have a different lobe configuration to work with the roller lifter as well.You cant interchange the lifters and cams with non roller cams/lifters.The roller designe allows the cam and valvetrain to accelerate faster than a conventional cam would.Hence the hi perf aspect of it.
     

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