Phil'sC5vette

iTrader: (4)

what is the suggested spark plug range on the TR6 plugs, for the modifications listed in my sig?

Darkman

iTrader: (2)

Spark Plug Part No. Gap
V-Power TR6 4177 .054
G-Power TR6GP 5141 .054
Laser Platinum PTR5F-11 .054
OE Laser Iridium ITR6F13 .054
Iridium IX TR6IX 3689 .054

Phil'sC5vette

iTrader: (4)

more inmput in a heads and cam car with 11:1 compression

02*C5

iTrader: (1)

y are u running a tr6 if your not running n2o run a tr55. if your running the bottle then run a tr6 and even then only to a 150 shot after that a br6ef is what you'll need. if its straight n/a tr55 is what you need period.

vettenuts

iTrader: (4)

NGK recommends one heat range reduction for every 100 hp added. I have the setup in my signature and am running TR6 plugs with the gap as provided from the box. If you want a larger gap, the 2nd number (TR55 for example) provides the larger gap. In other words the only difference between TR5 and TR55 is the provided gap.

I am running them straight from the box and it runs great. I have had them out several times and they are clean and appear to be functioning properly.

chrs1313

iTrader: (24)

11.9:1 here running the tr6 gapped at .035...also tick has done back to back dyno tests and this gap with the same plug gave the highest hp...

a straight tr55 is not cold enough when you start upping the compression...

485rwhp though a locked a4 here...

Phil'sC5vette

iTrader: (4)

Thanks guys.

I just need the gap size, not plug suggestions

vettenuts

iTrader: (4)

Guess my answer was a little confusing because I was also trying to address the TR55 suggestion. I am running TR6 with the gap provided by NGK, which is 0.040" out of the box.

Darkman

iTrader: (2)

http://www.ngk.com/results_app.asp?AAIA=1432483

http://www.ngk.com/results_app.asp?AAIA=1432727

http://www.ngk.com/results_app.asp?AAIA=1433649

Phil'sC5vette

iTrader: (4)

looks like im .045

chrs1313

iTrader: (24)

that is good an all but I checked all of mine and they were are around .040 out of the box tr6...I tightened them up to .035...