timing

Discussion in 'PSI Superchargers Tech Questions' started by hotrodharlkey, Nov 23, 2010.

  1. hotrodharlkey

    hotrodharlkey New Member

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    where would be my best timing for start-up on my new built engine?engine specs below;

    building a 540bbc blown alcohol engine
    11.8 static comp.
    731/726 lift roller //114 lobe center //running dur 322--326//dur at .050 284--288
    brodix heads flowed to 372cfm on intake at 700 lift
    12-71 blower 25%OD
    big&ugly injector hat
    port nozzles
    990 pump
    fuel system flowed by spud miller

    trans;;pg with brake
    1;80 straight cut gears
    10 disc high gear

    4;30 gears
    car estimated at 2800 lbs
    32x14.5x15 slicks

    don
    badtoyzz racing
    775-738-3964
     
    #1
  2. Wildcatracing

    Wildcatracing Member

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    Hi Don, 28-30 degrees is where we started with our BB Chev, its plenty safe but is enough to get the thing running OK. Cheers
     
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  3. SoDak

    SoDak Active Member

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    I would expect 31-35 will be your max HP. I'm assuming its a big chamber like 119 cc's?
     
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  4. hotrodharlkey

    hotrodharlkey New Member

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    yes heads are 119cc's
     
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  5. BUTCH

    BUTCH Member

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    BBC Timing to start

    Don,
    I ran a real close set up, we started off at 30 and worked are way up to 35 degrees, I would never go over 36. Just to be safe. I hope this helps!!!

    Butch
     
    #5
  6. hotrodharlkey

    hotrodharlkey New Member

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    thanks everyone;;i'll start at 30 then;;just want as safe and easy start to run engine on run stand till i get car ready for it;;
     
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