melted plugs
Thread Starter
Heel & Toe
Joined: Jul 2005
Posts: 22
Likes: 0
From: JOLIET IL
melted plugs
My friends 01 ws6 keeps on melting 2 spark plugs while using nitrous. He is using a standalone fuel system with 100 octane,tr6 plugs gapped at .035. Timing is set at 24 degrees total advance and afr was 11.0-11.5 during the dyno run that they melted. What are your thoughts on this. Mods are as listed.
9" w/TrueTrac,373 gears
Dr Evil stage 3 4L60E w/yank SS4000
Spohn steel D/S,adj TA w/loop
Bmr rear lca's,PHB,air bags.
238/242,.600/.612,114+4 cam,TSP stage 1 heads,LS7 lifters,Crane dual springs,tit ret,TR pushrods,QTP oil pump,Fast 90/90,42lbs injectors,racetronic PNP,Slp lid,maf
Hooker headers,QTP cutout,magnaflow
HSW standalone,TNT F1
15" prostars with 27" M/H
Old Setup @ Union Grove WI
11.9 N/A 1.5 60ft
10.8 @124,150 shot with 1.5 60ft
9" w/TrueTrac,373 gears
Dr Evil stage 3 4L60E w/yank SS4000
Spohn steel D/S,adj TA w/loop
Bmr rear lca's,PHB,air bags.
238/242,.600/.612,114+4 cam,TSP stage 1 heads,LS7 lifters,Crane dual springs,tit ret,TR pushrods,QTP oil pump,Fast 90/90,42lbs injectors,racetronic PNP,Slp lid,maf
Hooker headers,QTP cutout,magnaflow
HSW standalone,TNT F1
15" prostars with 27" M/H
Old Setup @ Union Grove WI
11.9 N/A 1.5 60ft
10.8 @124,150 shot with 1.5 60ft
Le Mans Master
Joined: Sep 2006
Posts: 9,106
Likes: 166
From: PA
Take the timing down a bit
Bump up the fuel pressure if possible, replace the fuel filter
If that doesnt help, try moving the 2cylinder injectors that are melting to another cylinder and see if it follows. You are getting those cylinders too hot somehow. Either not enough fuel, too much timing for them IMO. GOod luck and please let us know what fix's it and what doesnt so we all get to learn from the experience.
Bruce
Bump up the fuel pressure if possible, replace the fuel filter
If that doesnt help, try moving the 2cylinder injectors that are melting to another cylinder and see if it follows. You are getting those cylinders too hot somehow. Either not enough fuel, too much timing for them IMO. GOod luck and please let us know what fix's it and what doesnt so we all get to learn from the experience.
Bruce
Melting Slicks
Joined: May 2002
Posts: 3,210
Likes: 1
you sure there is not an excessive amount of oil in the combustion chambers that are melting plugs. hot oil + n2o doesn't mix and will melt your plugs... at least it did for me. I would try a can of seafoam and see if that doesn't help.
Le Mans Master
Joined: Jan 2001
Posts: 5,786
Likes: 6
From: Lafayette Colorado
Since he is only running a 150hp shot, I feel that would be masking the problem. TR6s should be able to handle a 150hp shot without a problem. There is something that is causing the problem and it is best to find it.
What do the plugs look like? Post some pics if possible. The plugs will have different color and affects depending on what is happening. I know I have seen a picture on the net htat should plugs with different things happened to them: too lean, too rich, oil exposure, coolant exposure, etc.
Here are some site that show different plugs with different problems:
http://www.centuryperformance.com/spark2.asp
http://www.theultralightplace.com/sparkplugs.htm
Keith
What do the plugs look like? Post some pics if possible. The plugs will have different color and affects depending on what is happening. I know I have seen a picture on the net htat should plugs with different things happened to them: too lean, too rich, oil exposure, coolant exposure, etc.
Here are some site that show different plugs with different problems:
http://www.centuryperformance.com/spark2.asp
http://www.theultralightplace.com/sparkplugs.htm
Keith
Last edited by kromberg; Mar 13, 2007 at 03:25 PM.
