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Old 08-01-2008, 06:45 PM
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chevy 383/nitrous/timing

Hi guys and gals, one question ! Ok. We are using a chevy 383 for racing its compression is 12.5 good set of aluminum heads cam that is 255 deg.@0.50 and a 150 hp nitrous kit. this cam is probably not the best for nitrous, it is 110 lobe separation and has same lift numbers in and out ,we use 119 oct. race fuel. does anybody know what timing degrees would be safe ? we installed a timing control unit in it so at any given rpm it retards it self and that was hooked to the nitrous kit so when the retards activates the nitrous comes in. This is a short time full throttle racing, in a 3500 pound four wheel off road racing truck. so when the pedal hits the floor it must accelerate as fast as a drag car ! And one more thing, after full throttle with the nitrous spraying the engine stumble and stalls when we release the pedal from the floor ? we run it with total timing of 32 deg. with nitrous spraying. you thing its the carb or timing ? or ?? .. http://www.youtube.com/watch?v=eNELn...eature=related
check this one out,, for fun and to see what im talking about.
Thanks and best regards. Kristofer.

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Old 08-01-2008, 07:51 PM
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Wow I checked out the Vid that is just insane
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