Great news! The new 4 blade impeller for the 2021 RXP-X is now available.

[Green Hulk]

New video from Hulk Jr

SEA-DOO RXPX VS YAMAHA GP1800R: STAGE 1 - YouTube

So is this prop used in this video the 13/15 4 blade? He says 13/18 but then shows a picture of a 4 blade in the pump.

Can we get RPM at top speed in these videos?

It's definitely the 13/18 used in that video... Greg messed up and did a view of a 4 blade impeller when editing the video.

We will be testing the new 4 blade later this week and doing back to back comparison of the stock, 13/18 and new 13/15 and will be posting acceleration data from the V-Box Sport. RPM's will be noted.

[ptscon]

New video from Hulk Jr

SEA-DOO RXPX VS YAMAHA GP1800R: STAGE 1 - YouTube

So is this prop used in this video the 13/15 4 blade? He says 13/18 but then shows a picture of a 4 blade in the pump.

Sounds like its the 13/18 in that video. If you look at the comments from two days ago someone asked about the 13/15 4-blade and he replied he has one on the way and will do a comparison between stock 13/18 and this new 4 blade.

[Team Bilford]

If you are simply removing the speed limiter by tune or SCOM, would the 4 blade prop give the same 2 mph gain?

[jeff24680]

If you are simply removing the speed limiter by tune or SCOM, would the 4 blade prop give the same 2 mph gain?

I would assume these 2mph could only be attained by getting the RPMS over 8000? Maybe though. Good question.

[DinoMite]

If you are simply removing the speed limiter by tune or SCOM, would the 4 blade prop give the same 2 mph gain?

I'm going with a firm no.

[ptscon]

Curious, the SX4-CD-13/16 has been out for couple years now. Is the 13/15 version using a different root angle or something to justify the hype?

[DinoMite]

Curious, the SX4-CD-13/16 has been out for couple years now. Is the 13/15 version using a different root angle or something to justify the hype?

If mine actually gets delivered today, I'll compare it to the 13/16 for you. For some reason I've been buying up impellers recently and have quite the selection going.

[r1goombah]

what stage is this recommended for? curious to see how and if it improves numbers thru all stages

[DinoMite]

Curious, the SX4-CD-13/16 has been out for couple years now. Is the 13/15 version using a different root angle or something to justify the hype?

Looks identical...except leading has slightly less pitch. Oh and my 13/15 had balance holes in the hub, my 13/16 does not. Friend of mine got 13/15 and it has no balance holes. Both came from Riva, mine came via hulk, his did not.

[ptscon]

Looks identical...except leading has slightly less pitch. Oh and my 13/15 had balance holes in the hub, my 13/16 does not. Friend of mine got 13/15 and it has no balance holes. Both came from Riva, mine came via hulk, his did not.

Cool thanks, looking forward to seeing some results. If it can gain even 1-mph over stock or 3 blade Solas, and not loose acceleration/holeshot, at the same RPM than it's a winner.