Putting in new plugs FR6 in my 01' was wondering if they are pre-gapped? There is no mention of gapping them anywhere, just want to double check before I button it back up. Thanks.

 

dont have to gap....

 

Thanks for the quick reply. Just finished up and man what a difference! Everyone that has an 01' I would get these in if you havent already! Great idle and drives a ton smoother! Install was pretty simple too.

 

Did you install them yourself? Any tips?

 

Regardless of what is claimed you should always check them. The plug gap is very very important in a turbo car. Sit down in a comfortable place and take your time. Don't do it while standing over your car.

Plug gap is the major cause of misfires. If you are going to run lots of boost consider closing the gap by 005

 

I checked my gaps, but they were all just about spot on!

If you choose to replace the plugs, it's actually very easy as long as you have the correct tools to do so! You need a little extra reach (extension) when doing the plugs, and just take your time. I found you have to be carefull when returning the coilpacks, make sure they are pushed on and tighten up, but do not overtightened.

 

Yup, I installed them myself. Took about 3 hours total taking my time. I found a write up here...

https://www.6speedonline.com/forums/...ad.php?t=20761

The biggest pain was getting the plugs on the coilpacks. Small fingers would help a lot. Also make sure you have the clips on correctly when putting back in the intercooler pipes.

 

doesn't hurt to double check the gaps, only takes a few seconds. Ihave had gaps off out of the box.

 

Can somebody post the proper gap? This thread will come up in a search for someone someday, and they will not find the actual gap mentioned. So they will start a new thread asking what the gap is, then people will flame hom for not searching, then he will say I did search, and so on...

 

FR6's are gapped at 0.9mm from factory (~0.035"). The FR5's are gapped at 0.8mm (~0.032"). I believe all the later model turbo's run a 0.032" gap.

 

The side electrodes are so thick it's very difficult to open the gap.

 

Ah, question answered 4 months later. Good job wydryd. I found that the wire loop style gap tool worked well. The blade type is useless with these plugs. BTW, half of my FR6 plugs were off, and they came from the dealership. Always check!

 

I don't think you need to open up the gaps any more than that. The TT's run a 0.032" plug gap from factory anyway, so if you go with FR6LDC's, you can choose to leave them at 0.035", or close them a tad to 0.032" by gently and carefully tapping them on a hard surface, measuring each time to make sure you don't go past 0.032".

 

Sorry, I'm a newbie to these Forums and only just saw this post, as I'm researching this whole FR6 plug upgrade issue myself, for my own EFI'd '89 Turbo 3.3. The earlier cars ran a very cold W3 heat range plug which is too cold for daily street use, so I'm considering a FR5 or FR6 for street. I'm just wondering if the FR6 will be suitable for 1.25-1.3bar application in my own motor

 

Hmmm. You may have better luck getting answers on the Pelican or Rennlist boards when it comes to the classic Porsches.