good troublershooters needed

Old 12-18-2007, 10:06 PM
  #11  
chevysteve2
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Default good troubleshooter needed part 2

I installed the springs and the car did the same thing. I called MSD tech and was told it could be electro magnetic interferance. I disconnected the alternator wire and belt did the car did the same thing. I put foil on the magnetic pick up wire, didn't work either. I am going to try to rev it up to about 4000 and cut the fuel pump when the weather permits, to see if that is causing interferance. I have a spare BBC with a bad crank if all else fails I will build my spare motor and drop it in the car, at least I will know if it is a mechanical problem. because I have had 3 carbs on the motor already. If anybody Knows of a race shop with a excellent reputation in southern calif. send me a PM. By the way the car did this before I changed the cam.

thanks for all your help
steve
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Old 12-18-2007, 11:59 PM
  #12  
binderman
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Could it possibly be fuel reversion?
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Old 12-19-2007, 05:00 AM
  #13  
johnracer
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Does it have a full exhaust system on it? Could be restricted cat or mufflers....
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Old 12-19-2007, 05:18 AM
  #14  
gimmemud
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Have you changed out the rev limit chip in the msd box, I have seen a few of those go bad.
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Old 12-19-2007, 06:28 AM
  #15  
gs97s10chevy
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If your stall is to tight it will cause this problem.
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Old 12-19-2007, 02:58 PM
  #16  
27keith
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As posted before, Whatever you are using for an "ON switch" change it. Painless rocker switch, toggle switch, anything its a 5 or 10 dollar fix!!!! I chased a bad Painless switch for 4 weeks. Racecar idled fine and you could roll into throttle till a certain rpm before it started missing. If you matted the thing it was breaking up terribly from the get go. Would not have believed it till I had it happen to myself.
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Old 12-20-2007, 05:46 AM
  #17  
jayss10
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check your balencer to make sure it hasent spun ,i had a new 1 do it on first run,it was 22 deg. off it took me a 1/2 season to find the problem ,it was a new, bhj :?
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Old 12-22-2007, 07:52 AM
  #18  
kw89425
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what is your valve lash setting?
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Old 03-27-2008, 07:07 PM
  #19  
chevysteve2
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Default update

The car has been sitting through the winter. But I tried messing with it a little. The converter is a nitrous holeshot that flashes out about 2900 rpm with this motor. The cam is a hydralic roller I have set the preload from 1/2 to 1 turn. My next plan is to borrow a friends distrubeter and wire up a second battery that is just dedicated to running it. That should take all electrical gremlins out of the equation. I have changed the electrical switch. The exaust is 3 inch flowmaster that dumps right before the rear axle. The blancer has not slipped on the elasometer. I have changed the areomotive return fuel system, to a dead head system. I do apprecate all the input from everone, and can't wait to flog my car above 5000rpm. :twisted: :shock: :lol: :twisted:
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Old 04-08-2008, 03:37 PM
  #20  
adragrcr
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I'd check engine ground and wire guage on voltage supply and terminals connecting the wiring.
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