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Thread: Timing Chain And Gears Help

  1. #1
    Lovin my 302
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    Timing Chain And Gears Help

    I sprung a leak in my front engine cover in gasket were water pump ports are. So I figured since i'm going to be so close to my timing chain I'm going to change my chain and gears. I bought a Cloyes timing chain and gear set, now that I got it and I'm looking and reading the directions the cam gear has 3 marks for timing. 1 for stock cam timing another for advanced cam timing for to increase bottom end HP and 1 mark to retard the cam timing to increase the topend HP. My questions is I would like to advance my cam timing to get the bottom end gain, but I'm running all stock engine componts. Does anybody forsee any problems with doing this? Thanks guys

  2. #2
    Senior Member Killercanary's Avatar
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    Don't advance it, the 5.0L doesn't need any more low end. A stock 5.0L is all done by about 4800-5000rpm anyway. If anything retard it and gain a little top end. The valve springs may be a very limiting factor though depending on the age/mileage of them, as well as the stock intake manifold.

    If you don't plan to change valve springs, intake, etc just install it straight up and be done with it.
    -Paul

    1995 GT 'vert
    Best times on old 302 combo:
    12.03 at 112.5mph NA
    Best time with 9:1 compression NA dart block 331 setup:
    11.50 at 121mph
    Dyno'd: 415rwhp/410rwtq


    2004 Z16 commemorative edition Z06
    100% stock: 11.9 at 118mph




  3. #3
    Senior Member 95gts's Avatar
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    hey i was wondering kinda same thing...i got a ford motorsports timing set it has advance 2-4-6-8 and retard 2-4-6-8... im runnin f-cam , cobra intake, 75mm tb, 30#'s,and a set of alum heads, plus zex dry kit... bottom end is stock but really good shape.
    95 Mustang gts... Cobra intake,GT40P heads, F-cam, sds efi, 60lb injectors, Garrett turbo 11lb's!!!

  4. #4
    Senior Member 95gts's Avatar
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    ??????
    95 Mustang gts... Cobra intake,GT40P heads, F-cam, sds efi, 60lb injectors, Garrett turbo 11lb's!!!

  5. #5
    Lovin my 302
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    Quote Originally Posted by Killercanary View Post
    Don't advance it, the 5.0L doesn't need any more low end. A stock 5.0L is all done by about 4800-5000rpm anyway. If anything retard it and gain a little top end. The valve springs may be a very limiting factor though depending on the age/mileage of them, as well as the stock intake manifold.

    If you don't plan to change valve springs, intake, etc just install it straight up and be done with it.

    Thank you, Thats pretty much what i figured but i thought it mite be worth asking someone who knows for sure. Thank you

  6. #6
    Senior Member White5.0's Avatar
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    what you really should do is get a degree wheel and degree your camshaft

  7. #7
    Lovin my 302
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    Quote Originally Posted by White5.0 View Post
    what you really should do is get a degree wheel and degree your camshaft
    What would that allow me to do?

  8. #8
    Senior Member White5.0's Avatar
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    Quote Originally Posted by 955.0 View Post
    What would that allow me to do?
    it allows you to make sure the cam is installed to spec, the way it was meant to be.

    because of manufacturing tolerances, even you can install a cam dot-to-dot on a timing chain, when you actually measure it with a degree wheel, it can be a few degrees retarded or advance.

    when you degree you are checking for both the true TDC on all cylinders, and checking to see if your valve timing events match those of the cam card.

    even if you are using the stock cam, there isnt perfection in anything mass produced, so you are best to check it anyways, especially with an aftermarket timing chain - it may be slightly different than the stock timing chain



    BUT, that being said, going dot-to-dot wont hurt anything. it will most likely still be close to the valve timing events anyways. and unless you are trying to squeeze every last drop of HP out of it, it wont matter. im assuming you arent building a NASCAR engine or NHRA engine, so you will be fine lol
    Last edited by White5.0; 02-02-2010 at 04:47 PM.

  9. #9
    Lovin my 302
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    Question

    Quote Originally Posted by White5.0 View Post
    it allows you to make sure the cam is installed to spec, the way it was meant to be.

    because of manufacturing tolerances, even you can install a cam dot-to-dot on a timing chain, when you actually measure it with a degree wheel, it can be a few degrees retarded or advance.

    when you degree you are checking for both the true TDC on all cylinders, and checking to see if your valve timing events match those of the cam card.

    even if you are using the stock cam, there isnt perfection in anything mass produced, so you are best to check it anyways, especially with an aftermarket timing chain - it may be slightly different than the stock timing chain






    BUT, that being said, going dot-to-dot wont hurt anything. it will most likely still be close to the valve timing events anyways. and unless you are trying to squeeze every last drop of HP out of it, it wont matter. im assuming you arent building a NASCAR engine or NHRA engine, so you will be fine lol

    Well I'm going to see were I can buy one and take your advise and do this proper. Thank you I really appricate your knowledge and advise

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