Conclusion:
It is still confusing as to what works for a turbo because the cheep 82mm turbo worked better than we ever would have suspected. The boost threshold was close to a 60 mm Garrett but it wouldn't move the boost gauge as fast as the 60mm. Top end was great on the big wheel turbo as well.
Turbo sizing and designee is a significant factor for response but I do not think there is a magic bullet out there in the turbo market place. You don't have to spend big to get a good working turbo. There will be more oil less options out in the next season as well. What gets overlooked a lot is tuning. I think before anyone lays down the cash for a turbo upgrade, looking the best new thing in the turbo market they should spend some time tuning there clutching and looking at efi options. One guy in our group has a slp stage 3 on his pro and the 2 turboed RMKs are a lot snapper off the bottom end, its clutching and the way the fueling is set up. James also agrees that his sled is more snappy with the turbo on it.
The one thing that stands out the most between the two builds is the difference a water to air intercooler makes. I was running 7 psi all season James was stuck at 9psi. Everyone in are group agrees that the intercooled sled kicked on the other build pretty hard. I do not run high boost on 2-strokes, I also have never changed out a set of reeds probably because I don't rack up much more than a 1000 miles on them.
Running a large intercooler core is as important as having enough heat exchanger with a water to air. If you think your going to make 230 hp get a core that is good for at least 350hp, even bigger if it is a barrel style cooler.
This has been fun build for me, I like to thank everyone that has helped me out. It’s funny how there is smack talk about the turbo and efi suppliers for this industry, everyone of them that I have dealt with over the last +10 years have been great.
