cablebandit

iTrader: (37)

I had a tr6 gasketed equivalent for my Darts but wanted a colder plug. I decided to use the NGK 7173...heat range 8....Mightymouse uses them and since he drives daily, his input was important. So far they idle very well...not QUITE as good as the -6 heat range but very close. They are exactly what i was looking for to go 900+rwhp at the track and still idle cleanly daily

THE_SUPRA

nice! thanks for the info.

qqwqeqwrqwqtq

Did you make a pull and check the plugs to see if they are in fact the correct heat range?

obZidian

iTrader: (2)

right!!! kinda needed this info cable. What, do you think, changed while driving around with this -8 plugs?

cablebandit

iTrader: (37)

INTMD8 ....not yet...i drove my daughter home with them and thats been it...100 miles. I will see how they look after a few passes friday night.

obZidian...nothing seems to have changed but the idle quality and it is very slight....like going up 5 degrees on cam duration....best i can describe it

smokinHawk

iTrader: (48)

good to hear your back up and running
i take it you need a gasketed plug for the darts? that you dont need for the stock and 6.0 heads?

cablebandit

iTrader: (37)

correct though the tapered seat plugs do seem to work on the darts

qqwqeqwrqwqtq

Cool, let us know how it works out.

MIGHTYMOUSE

iTrader: (59)

ive got about 10k miles on a set here, took them out for a new set when i swapped the motor to the trans am. its a good plug. the 3911's only lasted about 3k miles cuz of the short tab