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new cam install no idle

This is a discussion on new cam install no idle within the Internal Engine forums, part of the LSx Technical Help Section category; ...

  1. #1
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    black
    1998 trans am

    new cam install no idle

    Just finished cam install in 98. 228r and all the goods, seemed to go well but won’t idle at all, pulling the PCM to send to frost for tune….cars an a4 full bolt-on with 3600 stall. I thought I would at least be able to get this small a cam to idle on stock tune (never intended to leave it that way but would like to get it up to temp and check for leaks)

  2. #2
    Veteran 0rion's Avatar
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    98 Formula
    06 duramax

    hard to get it to idle on the stock tune with that cam. I have the same cam and I did get mine to idle but just barely and it would only idle for a minute or so before dying.

  3. #3
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    black
    1998 trans am

    got my pcm back (form frost), and installed. good idle, cant wait to get it out...thanks

  4. #4
    Member robs98mysticZ's Avatar
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    Mystic Teal Metallic:320c
    1998 Camaro Z/28

    im about to install that cam what lsa are you running 114? benefit for me is access to hptuners for immediate tune

  5. #5
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    112, I picked the cam for the torque curve and lsa because I like choppy cams (just me). Cam seems tame little chop but not bad. without the tune the car would only idle long enough to see oil pressure. good luck with the build everything went pretty easy no major hang-ups just had to make a few tools (holding up lifters dowels, air-fitting to hold up valves, and tool to remove and install dampener); I purchased the valve spring compressor.

  6. #6
    Veteran 0rion's Avatar
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    Quote Originally Posted by robs98mysticZ View Post
    im about to install that cam what lsa are you running 114? benefit for me is access to hptuners for immediate tune
    I have this same cam.....when you get ready I can send you my tune if you wanted to cheat a little.

  7. #7
    Veteran 0rion's Avatar
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    Quote Originally Posted by seweber View Post
    got my pcm back (form frost), and installed. good idle, cant wait to get it out...thanks
    glad you got it back running.....good street cam.

  8. #8
    dbl clutch'n like i shld WICKEDLS1's Avatar
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    sebring silver
    Y2K SS CAMARO

    had the same cam in my ss and loved it. i had a previous dyno tune so mine idled fine but would load up like an older carbed car when you drove at the same hw speed for an alloted amount of time. it put down 389 rwhp through a 3400 convertor and 3.42's so i was impressed
    2000 ss camaro, forged lq9 370 short block, stage 3 PRC 243 heads, fast 102 w, big mouth throttle body, MS3 cam, 1.7 roller rockers, stage 3 t-56, monster stage 3, pro 5.0, 4.10's with moser axles, bmr tq arm, lca's, phb. SOLD (thankfully)!!!

    New project: 1968 step-side, partial restore, ls/th400 swap. hopefully boosted pics and more info to come!!!


    Having a small cam is like having a small dick, everytime you go to use it you wish it was bigger

  9. #9
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    what length pushrod did you guys run on your 228r cams, stock heads?

  10. #10
    dbl clutch'n like i shld WICKEDLS1's Avatar
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    sebring silver
    Y2K SS CAMARO

    7.4 no need to change the size

  11. #11
    Member robs98mysticZ's Avatar
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    Mystic Teal Metallic:320c
    1998 Camaro Z/28

    Quote Originally Posted by 0rion View Post
    I have this same cam.....when you get ready I can send you my tune if you wanted to cheat a little.
    alright sounds good shortcuts are always nice...much appreciated ill let you know then

  12. #12
    Member robs98mysticZ's Avatar
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    Mystic Teal Metallic:320c
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    ive got the 7.4s still in a box tho

  13. #13
    dbl clutch'n like i shld WICKEDLS1's Avatar
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    sebring silver
    Y2K SS CAMARO

    did you not replace them when you changed the cam? if not then tear that motor back down before it bends or breaks a stocker because that can really f some stuff up

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