How to get rid of cavitation??

[rick xp]

Ok guys went racing for the first time with the FZR yesterday and i was banging the limiter coming out of each corner.

At the moment im running a 13/26 Skat 155mm prop with stock nozzles etc.

I was running 8550 RPM WOT with an 8650 rev limit.


Now all i want is to go from 0-85 as fast as possible with no cavitation and good hook up.

I have the horsepower to do it and all i need now is to get it to the water.

What do i need to buy?

Should i just bite the bullet and go to a full skatty pump setup?

Bore mine to 160mm with a tbm cone??

[Waterholics]

I have heard that those skat pumps are very inconsistent and alot of problems arose from them. I race cc and I have a 160mm impeller and liner and it cosiderably deleted cavitation. Not totally but considerably. I would do that setup and wait till some good reports come back from those skat pumps. But if you do somehow get a good skat pump I've heard they are some serious arm stretchers, and they do get rid of cavitation completely.

[Antiguan FZR]

I have the Riva 160mm and lost 3 MPH on top even riptiched to 8500rpm, went back to the 155mm with the Skat 13/25 (82+GPS)

As Waterholics said, Hole-shot cavitation was still there with the Riva 160mm.

[rick xp]

Thanks for the info guys.

I have heard mixed things in regards to the 155 vs 160.

Most people say that you lose 2-3 mph but you get rid of cavitation and acceleration is about the same.

What about the 155 and a TBM pump cone?

[RichieFZR]

Thanks for the info guys.

I have heard mixed things in regards to the 155 vs 160.

Most people say that you lose 2-3 mph but you get rid of cavitation and acceleration is about the same.

What about the 155 and a TBM pump cone?

Seadoo pump kit from JD1 or Phil_GPR.

[rick xp]

Jerry was saying that the seadoo pump didnt do much.

Plus i think the prop sizes for the seadoo pump are waayyy too small for what we are doing.

15/26 4 blade is about the biggest you can go before loosing effiency on the seadoo's and thats way too small for us.

Didnt have any luck with the skatty props on the seadoos. Solas was far better.

[shhr]

Most people say that you lose 2-3 mph but you get rid of cavitation and acceleration is about the same.

they needed to pitch the 160 for the correct RPM, if the pitch is correct you will not lose speed with the 160. I am running the 160 with TBM cone it will spin once or twice at most from a stop and the mid-range pull is very good. The duel prop is also a good choice just need to work with the pitch to get it right.

I dont think you can get the performace you want from a 155 with the current props out there just not enough bite

[JD 1]

R&D Anti-Cavitation Transom Plate for FZ [162-18005] - $399.95 : PWCPerformance.com

[jtskier11]

R&D Anti-Cavitation Transom Plate for FZ [162-18005] - $399.95 : PWCPerformance.com

Does that work pretty well Dan?

[JD 1]

Does that work pretty well Dan?

Yam should do that from the get go... or better yet bore their own. 160m straight thru...