What spark plugs does everyone run?
PET has always listed the FR6LDC as the same plug for both the TT and GT2. I don't know why people think it's the GT2 plug. A Bosch heat range "6" plug is also listed in PET for the 997TT/GT2/GT2RS even though those cars run much higher boost, upwards of 1.6 bar in the GT2RS. Porsche only specs a colder heat range "5" Bosch plug for the much higher compression normally aspirated GT3/GT3RS. I'm not sure why people keep insisting on reinventing the wheel. I've always run the OEM plug with out any complaints or issues whatsoever whether running 91 octane or 100. The stock plug is what RUF uses in all their Turbo cars also. I preventively change plugs once every year or two and they come out looking great..
Last edited by pwdrhound; Aug 8, 2015 at 09:36 AM.
I've made a mistake here, my apologies!...the GT2 is indeed a hotter plug then the early '01 plugs, the charts haven't lied. The update was to avoid fouling; basically Porsche went too cold on '01 and needed to revise.
^ really. my tuning shop told me that the 5 was stock ( in 02/3 ) and what came out of my car before i was in charge of it.
but i have always used the 6. i never wanted to "reinvent" anything but anything oem gt2 seemed ok to me lol
so... it s HOTTER plug. whew. mystery ( for me ) solved. thx again.
but i have always used the 6. i never wanted to "reinvent" anything but anything oem gt2 seemed ok to me lol
so... it s HOTTER plug. whew. mystery ( for me ) solved. thx again.
I'd like to see a copy of 2000/2001 PET....
Porsche delivered 2000/1 TT cars with the colder plugs.
Porsche delivered 2000/1 TT cars with the colder plugs.
PET has always listed the FR6LDC as the same plug for both the TT and GT2. I don't know why people think it's the GT2 plug. A Bosch heat range "6" plug is also listed in PET for the 997TT/GT2/GT2RS even though those cars run much higher boost, upwards of 1.6 bar in the GT2RS. Porsche only specs a colder heat range "5" Bosch plug for the much higher compression normally aspirated GT3/GT3RS. I'm not sure why people keep insisting on reinventing the wheel. I've always run the OEM plug with out any complaints or issues whatsoever whether running 91 octane or 100. The stock plug is what RUF uses in all their Turbo cars also. I preventively change plugs once every year or two and they come out looking great..
Sorry again for the confusion Mark, the lack of coffee + pain meds today have me 'off'...should have spent the extra minute thinking before typing 
Your shop is 'correct', 2000/2001 TT's did come with the cold '5' plugs, believe spark blow-out on the higher boost/HP GT2 was the cause for change to '6'
Cheers,
Rob

Your shop is 'correct', 2000/2001 TT's did come with the cold '5' plugs, believe spark blow-out on the higher boost/HP GT2 was the cause for change to '6'
Cheers,
Rob
^ really. my tuning shop told me that the 5 was stock ( in 02/3 ) and what came out of my car before i was in charge of it.
but i have always used the 6. i never wanted to "reinvent" anything but anything oem gt2 seemed ok to me lol
so... it s HOTTER plug. whew. mystery ( for me ) solved. thx again.
but i have always used the 6. i never wanted to "reinvent" anything but anything oem gt2 seemed ok to me lol
so... it s HOTTER plug. whew. mystery ( for me ) solved. thx again.
Sorry again for the confusion Mark, the lack of coffee + pain meds today have me 'off'...should have spent the extra minute thinking before typing 
Your shop is 'correct', 2000/2001 TT's did come with the cold '5' plugs, believe spark blow-out on the higher boost/HP GT2 was the cause for change to '6'
Cheers,
Rob

Your shop is 'correct', 2000/2001 TT's did come with the cold '5' plugs, believe spark blow-out on the higher boost/HP GT2 was the cause for change to '6'
Cheers,
Rob
Now you guys have me really curious what plugs are in my car. My new plugs have arrived finally (sender forgot to ship them for over a week). Going to be changing them out this afternoon.
So quick question. How tight do you put the plugs in these cars? Is it pretty standard like most cars? I only ask because removing the old ones required some serious muscle. They were almost seized in there. Most bolts though have been on this car. I'm assuming that was not normal and I should just put a dab of anti-seize on the threads and install as I would in any other car.
BTW will post pics later. Old plugs look pretty crappy, a lot of build up on them I thought. I'm betting it'll run a lot better now with new plugs.
BTW will post pics later. Old plugs look pretty crappy, a lot of build up on them I thought. I'm betting it'll run a lot better now with new plugs.
No anti-seize? Isn't that standard for aluminum heads/threads? Thanks for the torque spec.
The plugs have a zinc/cad coating and if replaced on a more regular basis never seize/corrode in the thread, so no need for anti-seize...anti-seize can also affect electrical conductivity
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