spark plug damage help!

[steve963]

spark plug damage help! NOW WITH PHOTOS!

http://i187.photobucket.com/albums/x53/steve963/DSCF4612.jpg
http://i187.photobucket.com/albums/x53/steve963/DSCF4613.jpg
http://i187.photobucket.com/albums/x53/steve963/DSCF4614.jpg

see my pic of tip of plug, the shaded area has worn away on 2 of my plugs

is this serious:doh:

for those of you who cant tell from my pic, the shaded bit is on the earth, with the bit underneath the bit the spark comes from!

 

[warringtonjack]

I'm guessing its not overly serious, with the condition of the tip being more important, but for the cost of a new set, just get em in.

Oh, and i'll give you 8 out of 10 for drawability. :lol:

 

[steve963]

was wondering if DET has caused it though

 

[steve963]

engine runs really rich, but i was running nearly 1.4 bar on 99ron with airflow signal reduced by 10% (to lean it up a bit!), which I believe alters timing

think there still heat range 7 plugs also:doh:

gonna get some colder plugs, then I guess I should get it mapped on Rolling road, (I have emanage blue) to make sure the timing is ok

 

[GTi-R23]

Thats some impressive drawing skill you have there fella! :lol:

 

[steve963]

dont mock my art

 

[paz]

Can you tell what it is yet...

 

[steve963]

Can you tell what it is yet...

thats what the descriptions for:lol:

 

[Fast Guy]

A photo would be more help.

 

[steve963]

A photo would be more help.

guess its another jibe at my drawing skills:lol:

will get a pic when i change for cooler plugs, whats best is it NGK 8`s for the money? im running 1.2bar 320-330bhp (IIRC NGK 7`s are std)

 

[gtirjoey]

i run denso irridium jus the standard plugs listed for the car with no problems

 

[Fusion Ed]

Go for NGK BCR8ES... Try and get a pic of the plug, need to see it to make a better assessment.

 

[steve963]

i run denso irridium jus the standard plugs listed for the car with no problems

what even at 417bhp? these the std heat range? I though the colder plugs were supposed to stop DET by not remaining too hot on the next combustion stroke

 

[gtirjoey]

well all i can say mate is im not really getting alot of det. just get the denso irridium listed for the car it will be fine still running no problems what so ever. they seem to be coping really well with no spark blow out etc even at high boost. all i had to do is gap them down to .7 i believe when boost levels got quite high

 

[pulsarboby]

Go for NGK BCR8ES... Try and get a pic of the plug, need to see it to make a better assessment.

im using the same plugs at over 400hp and they are fine! will also only cost around £8 a set:-D just close the gaps up 0.1mm which will help with spark blow out if your running high boost levels

 

[Fast Guy]

guess its another jibe at my drawing skills:lol:

Nope. It would tell us more seeing the colour of plug, exact type or damage/wear etc.

 

[steve963]

gonna go get some 8`s at dinner today, so hopefully get some pics later, when i swap em

 

[steve963]

got the NGK 8`s today £9.20, not bad! should get the pics up tonight

 

[steve963]

OK took some pics

see page 1

 

[Fusion Ed]

Looks like you may be running too rich and also the plug range was to hot... Although its harder to tell on older plugs..