6 replies to this topic

[Goody]

Has anyone tried using K&N filters on their SCIC? Does it improve the performance that much?

[D Lo]

I plan on setting the boat up with a K&N filter along with an aftermarket intake system similar to what Yuji has done with his challenger Yuji's DIY intake; very good idea. You may get a very small horsepower addition, but nothing that will you feel at the seat. However, it will allow the engine to breathe MUCH better. I'm all for that.

[thumper]

check out dales jet sport - lots of info about filters and freeflow exhausts - stage 1 kits etc etc - worth reading - look for 4-tec parts and kits - its geared up around the rxp - but its the same engine so its only a matter of routing the hoses for the boat version - or at least thats what i have been told by my dealer.

[Yuji]

Yes...alot of the RXP mods apply to our boats. I'm getting a PPG Solas repitched impeller reall soon. This 180 with my intake and exhaust mods is cavitating now, so holeshot and initial acceleration suck I think a PPG, RIVA, Rotax Racing level 1 or 2 kit, less the rxp specific stuff, would really make these boats sing Biiger intercooler, I've also been reading alot about truing the rideplate and stuff. I'll keep at it till I get sick accelleration and get into the low 50 mph range.

[thumper]

dont understand why it should cavitate after exhaust and intake mods?????

unless there is too much power now????

[Yuji]

I'm assuming it's making a little more power down low. More power requires a repitch but...it's not out of the realm of possibililty that my wear ring has some scarring and is causing the cavitation. I checked it last week and it was good but you never know

[thumper]

hope you get it sorted soon