Power Adders Getting a Supercharger or Turbocharger? Thinking about using Nitrous? All forced induction and N2O topics discussed here.

sparks plugs on n2o?

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Old Mar 2, 2006 | 05:57 PM
  #1  
mean83z's Avatar
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sparks plugs on n2o?

I tried out my 100 shot for not even two passes. I recently just pulled my spark plugs and they seemed to be hurt like I've never seen before. the top part of the electrode has a white hard chalky build up on it and pieces of the porceline have cracked and broken off on 7 out of 8 plugs. They just seem to be severley chewed up. The are one step colder than stock which i was told to run and ive been running theses plugs for a year and ive never had this problem. Has anyone come across this problem? Any tips or solutions? I've pulled my timing back 4 degrees. I wanted to get to the track tomorrow night so this is urgent. Thanks.
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Old Mar 2, 2006 | 06:18 PM
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From: Southeastern PA
Car: 83 Z28
Engine: 355 c.i.
Transmission: TH350 3200 stall
Axle/Gears: 4.10's
I was told that my plugs are like this because I'm not feading it enough fuel. I was told to use a higher pill size on the fuel side, and stay with the same size nitrous. What size pills are you using for 100 shot? will this solve my problems? Thanks

Last edited by mean83z; Mar 2, 2006 at 07:34 PM.
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Old Mar 3, 2006 | 11:41 AM
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Nitrous Jetting

Who's system are you using? Plate? Running race fuel or pump gas? What total timing are you running? Have you flowed your system and checked fuel pressure with the solenoid open?
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Old Mar 5, 2006 | 03:17 AM
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Car: 1988 Firebird S/E
Engine: 406Ci Vortec SBC
Transmission: TH-350/3500stall
Axle/Gears: 7.5" Auburn 4.10 Posi-Traction
Wow a 100hp shot is baby shot. Should not be killing plugs or causing stress and havoc at all.
Must be real lean. Check and verify fuel pressure (flowing, not static) and fuel jet size. Backing off the timing 4 degrees from what? Start at 26 deg total and work up to near 30.
what plug number? what cylinder head?

I like to use a Non- projected tip plug for N2O.
Something is definatly not right at all as you should not be experienceing severe tuning problems at all on a 100hp shot.
Better to kill a set of plugs than pistons eh.....
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Old Mar 6, 2006 | 03:27 AM
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yea, wow, there's something really wrong there. Real world you should get away with even stock plugs with a 100 shot if everything else is right.
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Old Mar 6, 2006 | 11:36 AM
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Car: 83 Z28
Engine: 355 c.i.
Transmission: TH350 3200 stall
Axle/Gears: 4.10's
so you think its cuz of lack of fuel?
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Old Mar 6, 2006 | 11:37 AM
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Car: 83 Z28
Engine: 355 c.i.
Transmission: TH350 3200 stall
Axle/Gears: 4.10's
so you think its cuz of lack of fuel?
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Old Mar 6, 2006 | 11:46 AM
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This is the same topic as the other post you put up. Did you test the fuel pressure yet? I one post you said you tested it while fuel was flowing in the fuel solenoid. In another post you asked how to test it. Both in the same day.

You have a fuel problem and/or too much nitrous. Keep running it like that and it is going to come apart.
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Old Mar 13, 2006 | 11:20 AM
  #9  
mean83z's Avatar
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From: Southeastern PA
Car: 83 Z28
Engine: 355 c.i.
Transmission: TH350 3200 stall
Axle/Gears: 4.10's
thanks for the help junkcltr, i know what my problem is now, its that im stupid
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Old Mar 13, 2006 | 01:05 PM
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I wouldn't say you are stupid. Stuff happens. It is either low pressure or the fuel solenoid ins't wired properly.

Either way, do you have it working properly now? If so, what was the problem? We all learn from other peoples mistakes.
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