Help me check this chart for errors and add the correct plug gap. Thanks

Sorry it's hard to read and to small

 

For IT-20's, I've been told to run 0.036 at 12psi. Maybe 0.038 for 10psi.

This is a very handy chart, and I look forward to seeing the finished product.

 

.035 plug gap for all supercharged applications

I would not use a tr5 in a lightning, the tr6 is equivalent to the stock heat range.

 

I thought TR6's were 1 range colder than stock?

 

Isn't that what the chart has?

 

TR6's are the same heat range as stock. However they are copper plugs so they might be more resistant to detonation than the stock plugs. You might as well just use the motorcraft copper version of the stock plugs instead of tr6's though. Stock uses 12 (motorcraft) plugs which are very cold.

 

So at 14+ of boost I shouldn't be running TR6's

 

Tampa had it right with the TR-5's. TR-6's are a range colder than stock.

And I think the IT-16's are the same as stock for the Denso's. I know I saw all this somewhere last week when looking for plugs. I'll take a look and get back.

 

TR6's are the same heat range as stock. However they are copper plugs so they might be more resistant to detonation than the stock plugs. You might as well just use the motorcraft copper version of the stock plugs instead of tr6's though. Stock uses 12 (motorcraft) plugs which are very cold.

Stock plugs are AGSF 12FM1. Rumors are that they are actually iridium plugs

 

My stock plugs were platinum

 

Incorrect. TR6 are the same heatrange as stock. Add any boost or spray and the br7 is your best choice.

 

My stock plugs say platinum on them too, however ford has the following part numbers:

AGSF12FMP

AGSF12FMC

AGSF12FM1

P is for the platinum, C is for copper, What are the FM1's?

I ahve my stock plugs right here and they say platinum but the part number says fm1. REliable sources say this is actually an iridium plug.

 

QUOTE:

"JDM recommends NGK TR5 spark plugs for our customers who are running the stock 8 pounds of boost. For our customers running more than the stock 8 pounds of boost we recommend the NGK-TR6 which are 2 heat ranges colder than the spark plug which will help prevent detonation."

 

And the M166 blowers are stuck in Customs.

 

NGK, the MANUFACTURER of the plug, places the TR6 in the same heat range as the 12FM1. I think they would know best right?