Been a long time guys since I've been on any forums but I'll revisit some results.
The Remax gear was worse than OEM for us. The design resulted in lower oil pressure in the peak TQ areas and that's bad on turbocharged cars as the oil pressure did not ramp fast enough. I have one for sale if anyone else's testing showed differently. The calculations originally done did not factor in the OEM gear having nearly two pumps per peak tooth profile.
The FA20DIT cover has a larger oil pump (I believe it was 14mm vs 12mm of the BRZ). Because we have the Nemesis EMS stand-alone we could run that pump on our race car even thought the cam position sensors are not in the same location. Testing showed an improvement but it wasn't enough to solve the lower than ideal pressure on a boosted and raced BRZ FRS.
We also tried external dry sump pressure stages from in 3 different sizes and from 2 different manufactures. I was optimistic we could put together something to sell people that would be a bolt on solution. Frankly that project left me scratching my head as we weren't able to produce more pressure than we got from our Pro Comp engines using the oem pump.
Ultimately our Pro Comp FA20 long block build was the only thing that worked. I really wanted to go back and try and figure out why the external pressure stage that was a fail but unfortunately the FRS/BRZ aftermarket is a little soft on $$$$ mods. We wanted to do more for the platform but honestly without you guys spending the big bucks it's just not possible or I should say it doesn't make financial sense. There are plenty of products I had designed to further improve oil pressure, performance and reliability from the FA20 heads but market research pulled us into the Monster86 LS swap stuff.
It's a little harder to develop and market products as our race car is sporting a twin turbo V8 now
I loved my FA race car setup though but that transmission was just such a hold back. There are two game changer items however I may release but I'm waiting to see what Subaru does with the STi engines.
Thanks,
Phil Grabow