Opinions please, check out this plug
Drifting
Joined: Mar 1999
Posts: 1,931
Likes: 1
From: Norcross GA
Re: Opinions please, check out this plug (L98Terror)
How many miles on those injectors? Do you use a fuel additive?
Ash build up tells me ther is something in the gas, or the fuel is not fully vaporized.
Change your brand of gas.
Ash build up tells me ther is something in the gas, or the fuel is not fully vaporized.
Change your brand of gas.
Melting Slicks
Joined: Apr 2002
Posts: 3,019
Likes: 0
From: down that one road next to that big tree
Re: Opinions please, check out this plug (Raistlin)
looks somewhat oil fouled from blow by then cylinder combustion was burning it off the electrode & leaving some grime. it wouldn't suprise me if you had a fractured ring in the cylinder that came out of.
Race Director
Joined: May 2001
Posts: 14,165
Likes: 9
Re: Opinions please, check out this plug (L98Terror)
You might also try a non platinum plug. I've heard and I can in no way verify this that platinum plugs tend to run cooler, and will foul out quicker, especially if the car isn't in perfect tune.
Safety Car
Joined: Feb 2002
Posts: 4,212
Likes: 10
From: Sun City West Az
Re: Opinions please, check out this plug (L98Terror)
Looks like deposits and some oil fouling. Change the brand of gas and run a compression check of that cylinder.
[Modified by ittlfly, 5:14 PM 9/25/2002]
[Modified by ittlfly, 5:14 PM 9/25/2002]
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Joined: May 1999
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From: Plymouth MI Formerly Milford, MA MI
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Re: Opinions please, check out this plug (Raistlin)
That was the #3 the #1 had some build up but the other 6 looked great.
See how the arm looks pushed over a bit(Melted), I am running like a 120 shot of N2O.
It was funny most of the plugs looked like they just came out of the box.
It is pushing a little oil maybe just # 1 & #3. Compression looked good in the #3 but looked down in # 2
:(
See how the arm looks pushed over a bit(Melted), I am running like a 120 shot of N2O.
It was funny most of the plugs looked like they just came out of the box.
It is pushing a little oil maybe just # 1 & #3. Compression looked good in the #3 but looked down in # 2
:(
Thread Starter
Race Director
Joined: May 1999
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From: Plymouth MI Formerly Milford, MA MI
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Re: Opinions please, check out this plug (ZylaRace)
How many miles on those injectors? Do you use a fuel additive?
Ash build up tells me ther is something in the gas, or the fuel is not fully vaporized.
Change your brand of gas.
Ash build up tells me ther is something in the gas, or the fuel is not fully vaporized.
Change your brand of gas.
Fuel Additive just N2O :D
Thread Starter
Race Director
Joined: May 1999
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From: Plymouth MI Formerly Milford, MA MI
W. Detroit Events Coordinator
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Re: Opinions please, check out this plug (GusBustamanteJr)
WHY DIDNT YOU SAY NITROUS ON THE FIRST POST!!!!!!
CAN YOU SAY TIME BOMB>>>>TICK TOCK TICK TOCK!!!!! :nopity
CAN YOU SAY TIME BOMB>>>>TICK TOCK TICK TOCK!!!!! :nopity
Melting Slicks
Joined: Apr 2002
Posts: 3,019
Likes: 0
From: down that one road next to that big tree
Re: Opinions please, check out this plug (L98Terror)
rule #1 NEVER RUN PLATINUM PLUGS ON NOS !!!!! buy the $1.99 NGK Fr6 if your running no2, FR5 if your not. the nitrous and n02 don't really get along, also that oil definatly could be from a cracked ring. no2 on a platinum plug that's probably hot will create some insane cylinder heat. that on top of GM's cast iron top ring...do a leak down test, not just compression, if the ring is just fractured it will hold some compression but it won't hold up to a leak down.
Team Owner
Joined: Dec 2000
Posts: 90,675
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From: SE NY
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Re: Opinions please, check out this plug (L98Terror)
The fact that it's two adjacent cylinders that cause the same symptom is a little suspicious, even with good compression check.
Any chance of cross-fire in the wires??
Any chance of cross-fire in the wires??
Le Mans Master
Joined: Oct 1999
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From: Sachse Texas
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Re: Opinions please, check out this plug (65Z01)
Like GTSYellow said, NEVER run PLATINUM PLUGS with NITROUS. I have some plugs that look worse than that from detonation under juice. Unfortunately the pistons looked worse. If I were you I would definately do a leak down test and buy some copper plugs and gap them at 35. The plug could just be loaded up from the electrode being melted. If that is the case, I would consider yourself very lucky.
Le Mans Master
Joined: Oct 1999
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From: Sachse Texas
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Re: Opinions please, check out this plug (bill mcdonald)
What plugs do you run Chris?
Chris
Le Mans Master
Joined: Dec 1999
Posts: 8,540
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From: And on the fifth day, subpoenas were served to Obama senior staff
Re: Opinions please, check out this plug (L98Terror)
Looks like build up from detonation to me. Do a search of plug wear on the web and you will find lots of pictures like this. That metal is comming from your combustion chamber parts.