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Nirous Backfire HELP NEEDED..........Serios replies please

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Old Aug 5, 2008 | 01:24 AM
  #21  
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better late than never
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Old Aug 5, 2008 | 03:48 AM
  #22  
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The spark and nitrous performance, Quite often, factory type, wide-gap, projected nose spark plugs
will produce a detonation condition after a few seconds of nitrous use. The solution to the problem is to install
spark plugs that have a colder heat range and proper ground strap design for nitrous use. Consult your preferred
spark plug manufacturer to ensure you install the correct plugs for the nitrous level you choose to run. Also, due
to the cooler and denser inlet air charge that nitrous creates, it may be necessary to close-up your spark plug gaps
to eliminate any misfiring. i think, .030 to .035 in. spark plug gaps typically will ensure proper
ignition. You may be able to run a wider gap, or you may have to close them up, just be aware of this if you start
to experience an ignition misfire when you are using your nitrous system

Excessive bottle pressures, over 1100 psi, are dangerous to
your engine, most system is calibrated and optimized to operate from 900-1000 psi. Exceeding
this will not improve performance. Over 1100 psi also runs the danger of locking the nitrous solenoid closed due
to excessive pressure working against the valve’s plunger. If this happens, you must cool the nitrous bottle down
to lower the pressure. This will allow the valve to operate properly again

also
Start with the lowest horsepower setting and work your way up, This ensures if you have any
tuning issues to work out on your vehicle, they will get sorted out with a smaller shot of nitrous that will be less
likely to damage your engine. Once you have the car working well on the smaller shot, you can then safely start
to step up your nitrous kit horsepower

make sure your car can supply FUEL
other wise ,,, Bye bye engine ;D

i hope i answer all the questions everything is clear


and my friend ,, if you wanna play ,, Play safe
and also ,, if you wanna play ,, you have to pay
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Old Aug 5, 2008 | 07:30 AM
  #23  
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Along with what most of the others have said. But honestly I'm amazed your motor has lasted this long on that combination of nitrous shots and the stock fuel pump.
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Old Aug 5, 2008 | 08:26 AM
  #24  
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Originally Posted by Robert56
Simple answer, high rpm backfire. You ran lean, why: could be a couple things, injectors, fuel pump, dry getting past MAF with out reading, hit limiter and pcm pulled fuel. You really need to take progressive steps, then you know everything is in order. The plugs are telling ya another story, to much timing and not cold enough. Your lucky with that gas in the intake track, check the Have ya had a backfire thread, some of the wet bacfires are not pretty. I had one also due to hitting limiter (full story in other thread), a high rpm lean backfire, same stuff on mine: Vararam filter melted down, MAF maybe bad, TB jumped the gearing, split the plastic coupler ahead of the bellows.
Robert
Roberts probably correct...
IF the boom happened before the shift he could have also floated a valve...this will cause a nitrous backfire on dry shot cars also....


But as for the tune" 275 hp worth of nitrous should have 11* or so pulled out and should at leasty be a 8 plug id have a 10 in it......
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Old Aug 5, 2008 | 11:23 AM
  #25  
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Originally Posted by fotoboy
octane booster?

That was going to be my guess on the plugs...at least that's what they look like on an N/A car when you take them out.....orange.
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Old Aug 5, 2008 | 11:43 AM
  #26  
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The thread starter is so out in left field I don't even know where to start.

timing, plugs, garbage octane booster, fuel pump (lack thereof) are all wrong, really wrong for what you're trying to spray the car with.

I wouldn't do more then 100 on a stock motor and stock tune, any more then that and you're askign for trouble. 275, your nuts.

#9 plug, 116 octane fuel, at least 10 degrees pulled from the n/a tune, and do something with the fuel pump, put a standalone in the car for the nitrous and a bigger set of injectors if you are gonna run a dry 2nd stage at least.
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Old Aug 5, 2008 | 12:16 PM
  #27  
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Being that this thread is about a year old this is pointless but, homie was spraying 275 with 93 octane and some NAWZZZ octane booster. Give me a break.
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Old Aug 5, 2008 | 12:45 PM
  #28  
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Originally Posted by jmill96Z
Being that this thread is about a year old this is pointless but, homie was spraying 275 with 93 octane and some NAWZZZ octane booster. Give me a break.

I drink that **** before every race dog!!!
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Old Aug 5, 2008 | 01:07 PM
  #29  
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Shiiiiit, I drink so much red bull (most of it mixed with Jager) over the course of a race weekend, my **** turns neon green. Do you think that's bad?
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Old Aug 5, 2008 | 01:10 PM
  #30  
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Originally Posted by jmill96Z
Being that this thread is about a year old this is pointless but, homie was spraying 275 with 93 octane and some NAWZZZ octane booster. Give me a break.


I never even looked at when this was posted.
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Old Aug 5, 2008 | 01:13 PM
  #31  
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Ahhh.. I do it all the time. I do a search on something and type in a reply before looking at the date. By then, the damage is done.
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Old Aug 6, 2008 | 02:20 PM
  #32  
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Guys... I sold my vete back in January 08 !!
Yes !! It was crazy nitrous use. I was trying to run as fast as I could with what I wanted and had. I was making allot of points to other street racers, as well. I sprayed hundreds of 10 and 15 pound bottles with my 225 shot and stcock motor.....It never had a problem. I was simply trying to push the motor as far a it would go.
Was this stupid ?!?! NO I say. My car was simple, safe and ran 10's every day or night for years.
I had my fun, learned allot and made a few points throughout this time.
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Old Aug 6, 2008 | 03:23 PM
  #33  
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I feel bad for whoever bought it
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Old Aug 7, 2008 | 08:26 AM
  #34  
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Originally Posted by 123sugey
Guys... I sold my vete back in January 08 !!
Yes !! It was crazy nitrous use. I was trying to run as fast as I could with what I wanted and had. I was making allot of points to other street racers, as well. I sprayed hundreds of 10 and 15 pound bottles with my 225 shot and stcock motor.....It never had a problem. I was simply trying to push the motor as far a it would go.
Was this stupid ?!?! NO I say. My car was simple, safe and ran 10's every day or night for years.
I had my fun, learned allot and made a few points throughout this time.

You are an idote and i feel bad for whoeve has that worn out motor.....

You were not making points running 10's on a 225shot! trust me.
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Old Aug 7, 2008 | 11:30 AM
  #35  
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I sold the car for $13,000 with new ported LS6 heads and allot of other goodies installed and a spare motor !! The guy got a great car w/ spare parts at a great price.
BTW.... the car is stil running 10's with the new onwner
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