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  1. #1
    Member
    Join Date
    Mar 2009
    Location
    minnesota
    Posts
    18
    Corvette(s)
    black 1984 4t3 Z-51
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    Default Cam,ECM compatable

    While I have my 84 apart for head work I am looking at putting a better cam into the animal. I am "old school" and am still learning about computers. I have built seveal drag race motors in my past but have never messed with computers at all. I also am looking at putting that renegade manifold on also. (thanks buckeneer)!
    I have done some research on getting a bigger cam that is ecm friendly.
    This is what I have come up with that is suppose to be ecm friendly Does anyone have a word or two of advice for me?

    Specs:
    Intake duration@ .050 204
    Exhaust duration @ .050 214
    Advertised intake duration 262
    Advertised exhaust duration 272
    Valve lift
    Intake .420
    Exhaust .442
    Lobe sepuration 112 degrees

    Hydrolic lifts

    I have already installed 1.6 roller tip rockers on the car and that adds about .030 extra lift to the valve.

    My 84 has the 4+3 manual tranny in it.
    I am not looking to make a screamer out of it at all. I am just getting board with it and I promised my wife it would not turn into another drag car!

    Thanks all for the help and kind words that I have recieved since I have joined here....

    Ron
    Big Cock Chassis, you either have one, or you want one.
    You and me and the devil make three

  2. #2
    Member
    Join Date
    Jan 2004
    Location
    Not in Kansa anymore
    Posts
    1,560
    Corvette(s)
    1990
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    Default

    I don't see a problem with that one.It is duration more than lift that starts to screw the ECM up.
    The dur figures on that are not that far from stock cam

  3. #3
    Member mseven's Avatar
    Join Date
    Mar 2005
    Location
    motor city
    Posts
    23
    Corvette(s)
    90 coupe, 396ci. all mods
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    Default

    I'm not trying to discourage you, but my advice is I don't think the gains (if any, or very small) would be worth all the effort needed to swap cams. If you are going to do all that work to install a new cam put one that canl make some better gains. Don't be afraid to get a tune or have some one do it.

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