Motor is just wrong for a Super charger. It has been done, with little or no gain. There is some good read on s/f.
I agree a turbo can, and will work. A twin turbo would be good.. It has been done too.
These 2.5 are just awesome little motors. With some good parts, and some machining the will turn well over 10,000 some 11,000. A good stock drag on a 1100 lb boat + drive will turn 10,000 +. They just don't live long... Rings wear so quick, and we have great oil.
People would pay good money for a ring that is tough enough to last, 2x as long, and not tear up the nic..lol. We have a pretty good rings, just don't last.
My drag on my bass boat I prop/gear it to turn 9200 about peak hp. 10 hours of break in, rings were shot at 65 hours.. I think That is really good. All out race motor 1 season
A weekend of break in and test, 5-6 race weekends. 10-15 hours prolly tops. The bearings hold up pretty good, we have found some reeds, and cages that hold up well.
Rings are the weakest link.JMO
Anyway I'm curious about E-85 is on rings. Sounds like you can create more hp at a lot lower egt. I wonder about ring life. Cleaner, cooler, all sounds great to me for a lake motor... Anyway thinking aloud...lol
Roy
Roy