This thread was a whole damn lot more interesting than I expected! The only thing I'd caution is that while we're learning as a community, most of our knowledge is based on individuals' experience and not statistically reliable study.

Meaning that yes, I'm willing to trust y'all and not bother with a 3mm HG on my Greddy. And yes, down the road I'll trust your recommendations when I increase the boost too. But are our results consistently repeatable across 100 / 1,000 / 10,000 / 100,000 cars with different aftermarket FI kits at various altitudes, regional fuel formulations, and climates? Do DIY guys like me install turbo kits or build motors as well as a pro would? Are all tuners as good as Giles or Mase? Does everyone baby the motor the same way I do, or do they beat on it like it owes them money?

There are a lot of variables that we don't always account for in each of these discussions, and the OP is smart to inquire about our experiences.

 

We're a fairly large community, but we're never going to achieve FI sample sets of 100,000. Or even a 1000. If you're waiting for that you're going to be waiting a long time. You have to take the handful of reported experiences and make up your own mind, go your own way, have your own experience and add to the pool.

 

BTW, we all go on about the 3mm head gasket. Keep in mind there is also a 2mm available from Cometic and a 2.4mm available from SCE.

 

Just ordered my 3mm !!!

 

^ Don't forget BRAND NEW OEM HeadStuds!!!!!!!!!!!!!!! or ARP, but the Metro F/I guys prefer the OEM stuff

 

Metro FI guys? Like metrosexual? LOL

I prefer the ARP headstuds myself and so does IP and many others.

 

^

NY Metro guys, (some may or may not be metro, lol) the largest majority of F/I guys come from this cherished sub-section .

OEM FTW

 

LOL

 

@ "Metrosexuals"!!

 

I've met 'em. Nothing 'sexual' about 'em.