Need help with spark plugs

[to4garret]

plug heating up and the eltrode is being bent by the cylinder pressure.

get some 8's, non-iridum's, they junk.

 

[to4garret]

plug heating up and the eltrode is being bent by the cylinder pressure.

get some 8's, non-iridum's, they junk.

 

[to4garret]

plug heating up and the eltrode is being bent by the cylinder pressure.

get some 8's, non-iridum's, they junk.

 

[bazeng]

jon had a plug that melted at the track..
he was running 6's i believe..
he went to 8's and solved the problem..

dont get the irridiums...
get stock ones mate...

try 8's, see how you go..

 

[bazeng]

jon had a plug that melted at the track..
he was running 6's i believe..
he went to 8's and solved the problem..

dont get the irridiums...
get stock ones mate...

try 8's, see how you go..

 

[bazeng]

jon had a plug that melted at the track..
he was running 6's i believe..
he went to 8's and solved the problem..

dont get the irridiums...
get stock ones mate...

try 8's, see how you go..

 

[JSTYLE]

jon had a plug that melted at the track..
he was running 6's i believe..
he went to 8's and solved the problem..

dont get the irridiums...
get stock ones mate...

try 8's, see how you go..

Ditto... actually 7/8s solved the problem.

Jon

 

[JSTYLE]

jon had a plug that melted at the track..
he was running 6's i believe..
he went to 8's and solved the problem..

dont get the irridiums...
get stock ones mate...

try 8's, see how you go..

Ditto... actually 7/8s solved the problem.

Jon

 

[JSTYLE]

jon had a plug that melted at the track..
he was running 6's i believe..
he went to 8's and solved the problem..

dont get the irridiums...
get stock ones mate...

try 8's, see how you go..

Ditto... actually 7/8s solved the problem.

Jon

 

[Lee]

More help needed!!!
I put in the BPR8ES plugs when I went out on the track a while ago and after a lap of awesome performance, they didn't give good spark top end!
and had a BIG miss.
The car drove find not under boost and maybe even a few psi after, So I put back in the BPR7IEX Irriduims and put the boost down to 18psi and was perfect.
I took the plugs out to inspect and they "looked" perfect !!! WFT????

Now I'm needing to run a "8" heat range plug at the track under high boost (25-27psi) being the OEM plug heat of "7".

When I went to the drags a few months ago they was preformed fault-less and I even kept them in around town driving, and they lasted a week until they developed a miss top-end.
Do you think that the "BPR8ES" 8 heat range plug's are the correct type of plug for my car? OR should I try another "8" heat range plug?

I have another track meeting next weekend and will be wanting to head back down the 1/4 mile in the next month or 2 now it's cooler and need a plug I can count on.

Cheers.

 

[rob323]

Were the gaps still correct?

 

[Lee]

Yep, spot on ! .8mm they are.
Maybe could go down to a .6-7mm?
I dont think that there would be any other type of 8 heat range plug that would suit my car would there?