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Thread: cam for a turbo motor?

  1. #1
    Join Date
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    Question cam for a turbo motor?

    ok so i got my motor running and im just not real happy with the cam it is a bullet cam 226/224 586/578 115 and it just doesnt seem to be right i was wondering yall guys opinion on a good cam its a fully built lq9 with 8.8:1 compression with 2.05 intake and 1.8 exhast valves. With manley duel springs and comp pro magnum rockers 1.75 ratio the turbo is a 76 mm. im just wanting something a little bigger because it just seems small.

    Junkyard 5.3 milled heads 200 shot, built 4l80e with circle D 4000 multi disc converter
    EPS cam 23x/23x 600/603 112lsa
    KP 6 link bagged with Accuair E-Level
    http://www.nitrousexpress.com/

  2. #2
    ff_jeff Guest
    the lift on that cam with 1.75 rockers is .603/.595. I would say that it is not a small cam.

  3. #3
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    Have you measured how much boost you're making?

    Can you give us the timing events of the cam?

    Bullet cam? Is that the former UltraDyne company?

  4. #4
    Join Date
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    Stock cams with their high LSA usually make very nice turbo cams.
    I would look into an '02 Z06 cam

    If you really want to maximize cam potential you need a custom cam, period.
    Check out LSM Engineering. Expensive, but worth it. IMO.
    2002 Tahoe 4.8 - soon to be turbo'd - SOLD
    1989 Mustang - LX Vert - 351W-TT - 2inches of dust covering it
    2012 Raptor - 497rwhp at 10psi
    If you aint breaking - you aint going fast enough

  5. #5
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    Quote Originally Posted by Madd Maxx View Post
    Have you measured how much boost you're making?

    Can you give us the timing events of the cam?

    Bullet cam? Is that the former UltraDyne company?

    im at 6 psi right now but will slowly be steping it up to about 20

    what do you mean by timing event

    and not sure but i dont think they were ultradyne

    Junkyard 5.3 milled heads 200 shot, built 4l80e with circle D 4000 multi disc converter
    EPS cam 23x/23x 600/603 112lsa
    KP 6 link bagged with Accuair E-Level
    http://www.nitrousexpress.com/

  6. #6
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    329
    Quote Originally Posted by dropem View Post
    what do you mean by timing event
    The opening/closing events of the intake/exhaust valves. You should have received a card with the cam that shows these events for degreeing the cam during installation.


    Quote Originally Posted by dropem View Post
    and not sure but i dont think they were ultradyne
    OK, I didn't state the question very well. What I was trying to ask is, didn't Bullet and UltraDyne merge not too long ago?

  7. #7
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    While I'm asking questions, is your turbo a Turbonetic T76?

  8. #8
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    Quote Originally Posted by r.barn View Post
    Stock cams with their high LSA usually make very nice turbo cams.
    I would look into an '02 Z06 cam

    If you really want to maximize cam potential you need a custom cam, period.
    Check out LSM Engineering. Expensive, but worth it. IMO.
    I just got an 02 z06 cam and springs. I can't wait to see how she does!

  9. #9
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    Quote Originally Posted by Madd Maxx View Post
    While I'm asking questions, is your turbo a Turbonetic T76?
    yeah it is. ill have to find out the timing events of the came but to me it just doesnt seem like it has enough duration in it but thats just me

    Junkyard 5.3 milled heads 200 shot, built 4l80e with circle D 4000 multi disc converter
    EPS cam 23x/23x 600/603 112lsa
    KP 6 link bagged with Accuair E-Level
    http://www.nitrousexpress.com/

  10. #10
    Join Date
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    Houston
    Posts
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    Quote Originally Posted by dropem View Post
    yeah it is. ill have to find out the timing events of the came but to me it just doesnt seem like it has enough duration in it but thats just me
    It's an N/A cam, with bigger intake duration vs. exhaust.
    Turbo cams are the opposite or a single pattern with like a 117 LSA

    Get a custom cam or run a stock with high ratio rocker arms.

    226 is a bit short duration for a 6.0L too. The longer stroke needs more
    valve open time to fill bigger cubes.

    My 5.8L TT mustang with custom LSM turbo cam runs like 240+ duration
    but thumps pretty good too.
    2002 Tahoe 4.8 - soon to be turbo'd - SOLD
    1989 Mustang - LX Vert - 351W-TT - 2inches of dust covering it
    2012 Raptor - 497rwhp at 10psi
    If you aint breaking - you aint going fast enough

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