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Thread: timing
          
   
   

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  1. #1
    Superjim427's Avatar
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    timming

     



    I HAVE A CHEVELLE WITH A 427 ENGINE WITH THE FOLLOWING PARTS. WORLD OVAL HEADS RPM INTAKE 11-1 COMPRESION 2 INCH HEADERS EDELBROCK 800 CARB AND A COMP EXTREME ENERGY 284 CAM.THE CAR WILL ONLY RUN RIGHT WITH 16 DEGREES OF INITAL TIMMING, 24 WITH THE ADVANCE HOOKED UP AND 41 TOTAL IS THAT TO MUCH TIMMING?

  2. #2
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    at 38 total timing what does the motor do, just lazie or poping and miss firing ?
    Mike
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  3. #3
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    if your damper ring has slipped, the cost effective way to fix this without buying a full damper is a damper cover... they run about $25, give you very accurate readable numbers, the bolts go thru them, and they're a single piece... so you never have to worry about it slipping or anything

  4. #4
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    Red face

     



    "Sallee Chevrolet does not recommend that you get the chromed covers. We have determined that it is near impossible to time an engine with this version and a timing light. "


    neat!! though ........
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    If your wondering how I'm doing I'm > " I'm still pick'N up the shinny stuff and passing open windows "

  5. #5
    Superjim427's Avatar
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    the damper is new and ifi set the timming at 8 or ten degrees inital it will stall in gear

  6. #6
    lt1s10's Avatar
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    Originally posted by Superjim427
    the damper is new and ifi set the timming at 8 or ten degrees inital it will stall in gear
    then you might need to idle you carb. up accordingly.
    Mike
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  7. #7
    thesals's Avatar
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    and yall thought i was just bullshitting you .... and yeah sadly they're only chevy so far... hopefully they make a ford one sometime soon, my balancer has slipped off pretty bad... i have to just time by ear and feel... which isn't the most effective method, but its decent

  8. #8
    Superjim427's Avatar
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    The problem was overlooked the timmed vac port was getting constant vacume and taking inital timming from 10 degrees to 20 at idle. I idled the carb down the most i could but the throtle blades were still open at idle. i decide just to lockout the vac advance and it runs perfect

  9. #9
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    good deal.... now you might want to look into getting that advance fixed to keep your performance up to its best

  10. #10
    Superjim427's Avatar
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    do i need the advance at all

  11. #11
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    The old story is that you "need" a vacuum advance for street driving. However it is supposed to aid in fuel economy which is not high on my list of concerns. :-) My engine (see post around here somewhere) ramps way up on the advance - much more the savage beast without it. I normally stop using a vacuum advance around the .280 mark on a small block because fuel mileage is no longer a concern.

  12. #12
    thesals's Avatar
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    advance increases fuel economy, but it also can help generate that little bit of extra power at higher RPMs... i personally reccomend using an advance.... mecahnical or vaccuum? well thats a different story

  13. #13
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    i think my mechanical advance from a petronix distributor is 24 with 12 inital that will take me to 36. has anyone had a problem with the timmed vacume port on a edelbrock carb. i would like to run my vac advance.

  14. #14
    Superjim427's Avatar
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    ille even go with just mechanical advance since the port keeps getting vac do ineed to get my distributor recurved to get 38 degrees of timming at 3,000 rpm

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