SILVERJET

I was wondering if someone can help me out and tell me what spark plugs to run on a v-1 2002 mustang gt. i looked up ngk6 plugs but alot of diff. parts numbers come up. any help please let me know what parts numbers are u guys running on you sc stangs thanks

Obsequious1

I ran platinum plus for a year and never had a problem. I went to Pep Boys once and asked them what plugs they used in the 03/04 cobra's, just to give me an idea on which plugs I should use,( because of the supercharger ). I was always told a 1 degree cooler plug with forced induction. Pep Boys tells me that the platinum plug was a direct oem replacement plug.???
Right now I'm using regular Autolite copper plugs. I can't tell the diff. between the two.
Maybe I'll try the NGK TR55's next year.

HateWhatOwnsYou

i believe the TR6's gappped to .03 is the common thing around here


i think.... or something like that lol

Frostbitten

ngk tr6 or stay at the house....

SILVERJET

But does anyone have a part # because there alot of diff. ones

AirBrontosaurus

I have Autolite 103s. I haven't installed them yet though... too lazy. I really should get on that.

dkaar

Part number is 4177 (straight from rockauto.com) $1.96 each

SILVERJET

thanks i been waiting a long time. i ended up buying autolites double plat. expensive but it was last minute. i already have my car at gtr performance and should be getting it back monday i cant wait....... 400 plus hp to the crank. this forums really helped i bought every part by it self and the total cost of install tune and parts is 2900.

ccso481

when i did mine i called the techs at vortech and they suggested the stock factory motorcraft plugs..... i went to ford picked them up and haven't had any issues with mine.

SILVERJET

well its it installed but what crazy is that the dyno said 8.67 psi but the auto meter gauge only puts out 5 psi at best at wot. i told gtr safe tune... i have the parts to hit 380 plus but since my motor is 100,000 plus i wanted it safe. Also do you guys get alot of back pressure out of the exhaust. i dont have a brand exhaust its custom lol na just removed the muffers and add x pipe. it seems to back fire if i left of the throttle in every gear except 5th.