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I was inside my car and it sounded like a M80. I was glad you figured it out.
Hope you enjoyed your time up north here in the Great NW.
I would like to make it down south next year and race some of you guys, maybe even Bill or Al.

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NOS is for kids and girls!

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Guess you got lucky , i sprayed a 300 shot pulling too much timing for the distributor , blew the throttle bades & boosters right off the carb mid track , set fire to the bulk head wiring & fried the hood , have since fitted a 'cap adapt'.

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Guess you got lucky , i sprayed a 300 shot pulling too much timing for the distributor , blew the throttle bades & boosters right off the carb mid track , set fire to the bulk head wiring & fried the hood , have since fitted a 'cap adapt'.

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When spraying you should phase your rotor to what the timing will be on the spray or this is what can happen.

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Guess you got lucky , i sprayed a 300 shot pulling too much timing for the distributor , blew the throttle bades & boosters right off the carb mid track , set fire to the bulk head wiring & fried the hood , have since fitted a 'cap adapt'.

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When spraying you should phase your rotor to what the timing will be on the spray or this is what can happen.

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too pull too much timing wouldn't it have to be extream?a friend ran 50 NOS jet and ran 8* timing.[on a motorcycle]

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Guess you got lucky , i sprayed a 300 shot pulling too much timing for the distributor , blew the throttle bades & boosters right off the carb mid track , set fire to the bulk head wiring & fried the hood , have since fitted a 'cap adapt'.

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When spraying you should phase your rotor to what the timing will be on the spray or this is what can happen.

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Yea i know , was only pulling 13* on a stock cap which should be good for around 20* of retard (MSD), since then have gone for a larger cap with two piece rotar , no problems since , cylinder pressure can be a killer.

It's difficult to phase a stock cap pulling 13* of retard to fire right where the rotor meets the cap terminal , with high cylinder pressures the rotor will prefer the easiest route , hence the next cylinder whilst the intake valve is still open , either a crank trigger or adapt a cap is the easiest way to avoid this happening , had to modify the valve cover to fit the 'adapt a cap'.

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I don't see how a crank trigger alone would solve an out of phase rotor. It
signals the MSD box, MSD delays spark but, rotor still has to be oriented
correctly for the retarded spark.

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It won't , if using a crank trigger a normal cap will suffice , just need to phase rotor/cap terminal with trigger.

Did'nt think i needed a long winded post to explain it , sorry.

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I'm no electrical or nitrous whiz but, if the problem with intake
explosions were directly related to the nitrous, which I assume is
when you retard the timing, I'd think you'd want to phase the rotor
whereever the ignition was most retarded.

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Just went through this with a friend we put the spring loaded pressure relief valve on his SM tunnel ram, get one of these it will save you money in the long run!
Bill

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