MIGHTYMOUSE

iTrader: (59)

will be doing these this season $$$!

existing results? comparisons?

been running ngk 7173 non resistor for 4 years but trying to track down some electrical noise / gremlins

onfire

iTrader: (17)

I ran the -8 ngk copper and the TR8Ix back to back last year...no more power, but the ix's last longer on leaded fuel....enough for me to keep buying them since plug chaanges are not funnnnnnnn.

TurboAv

iTrader: (6)

The Ix are iridium. I didn't think you could gap those? Or do you just run them straight out of the box?

MIGHTYMOUSE

iTrader: (59)

what is -8 copper?

onfire

iTrader: (17)

You have to be very careful dropping the gap on the ix'x....I run them at 0.030

onfire

iTrader: (17)

R5274-8 copper vs TR8ix iridium....same power...ix less prone to foul...both "color up" the same.

MIGHTYMOUSE

iTrader: (59)

Is that the 7173 I was running? Andrew at ngk yesterday told me there was not a resisitor offering in 8 other than the 2668 iridium

onfire

iTrader: (17)

R5724-8 is stock # 7317 non-resistor

TR8ix is 3691 resistor.

I've run the -8 copper non's with MSD's, Magnecor and Firecore without any RFI. Fine plug for .708 reach, taper seat, blah,blah,blah....and cheap...I just hate plug changes in a turbo car....TR8ix extends but adds zero power....but I'm lazy and will continue to use them.

onfire

iTrader: (17)

PS: I wait until Advance puts them on sale online and bundle with oil, etc for another 25% off since they are $6.oo each bundled....still high for a plug.

MIGHTYMOUSE

iTrader: (59)

gotcha, well they are in to try for friday, didnt get to take a trip around the block.

guy at ngk told me to get the non-resistors out of the car, hopefully he wasnt just selling me plugs.

pwrtrip75

iTrader: (8)

Why? What exactly were you experiencing?

stevieturbo

You should never use a non-resistor plug in a modern efi equipped car. The resistors are there specifically to help reduce electrical noise.

MIGHTYMOUSE

iTrader: (59)

yea that what guy at ngk said... so far no difference tho my pocket is lighter

stevieturbo

resistor plugs arent any difference price wise than non.

In fact, I cant even remember the last time I seen a non resistor plug for sale here, or anyone even still using them

How is the noise or interference manifesting itself ?