24 PSI...300 hp Jetski . . . I want
05-08-2011, 10:28 PM
#23
Boats suck compared to PWC's, you get way more fun per dollar with them. What other machine can be going 90kph and make a 180deg turn then be instantly going the same 90kph the other way. Or the full speed 360 then back straight at full tilt without really slowing at all.
Maybe this is why my wife doesn't want me to get a bike?
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05-08-2011, 10:43 PM
#24
There has to be a line to define when it is / isnt a PWC. I'd like to draw the line between "large pwc" and "small boat" 2 seats or less, and 3 seats or more; If a driver can tow a skier, with an observer facing the rear, it's no longer a "personal watercraft" - it is simply a "watercraft"
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05-08-2011, 11:08 PM
#25
I used to work at a Yamaha dealer, and rebuilt a Waverunner last summer. They are boosted with a Rotrex. Funny though, it says "HKS" on the compressor housing. But it is a Rotrex. Looked big too... at least a C30-74. It only runs at 8PSI and makes 220hp. It would be sweet to up the boost on it. But it's driven right off the crank so that's not possible.
I got to take one of the new prototypes out a few weekends ago, they are a ton of fun to throw around on the lake and fast as hell, topping out at 65ish mph. That may sound slow compared to car speeds, but that's pretty fast across the water. Yamaha likes to advertise the fact that these WaveRunners will out-accelerate a new Z06 from 0-30 mph.
Anyway, the jetski in the first post sounds nuts, I bet that would be a ton of fun!
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05-09-2011, 10:36 AM
#26
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GF and I rented some 160hp skis at the cayman islands last year. AWESOMMME some of the most fun I've ever had.
When I'm on the beach, hearing them buzz around is annoying as **** but riding them is superrr.
When I'm on the beach, hearing them buzz around is annoying as **** but riding them is superrr.
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05-09-2011, 06:06 PM
#27
I have a SeaDoo RXP 215. It is just under 900lbs, and has 215 hp from a centrifigal supercharged 1.5 liter 3 cyl Rotrex. It sounds awsome, and accelerates hard. I truely love that damn thing.
I pulled the blower to upgrade it with the blower from the current model which is rated at 255 hp. It is just as addicting to modify as hot cars.
The funny thing about those things, is from the factory the sport models will go no more than 70 mph no matter if they are making 150 hp or 300 hp. It has something to do with an agreement with the manufacturers and the Coast Guard.
I hear it costs about $8,000 or more to gain 10 mph of top speed, and maintain hard acceleration.
I pulled the blower to upgrade it with the blower from the current model which is rated at 255 hp. It is just as addicting to modify as hot cars.
The funny thing about those things, is from the factory the sport models will go no more than 70 mph no matter if they are making 150 hp or 300 hp. It has something to do with an agreement with the manufacturers and the Coast Guard.
I hear it costs about $8,000 or more to gain 10 mph of top speed, and maintain hard acceleration.
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05-09-2011, 06:15 PM
#28
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yeah top speed is tough. The Previous owner got it up to 73 on GPS, and that was after smoothing some things out on the hull and playing around with different impellers. On flat water I saw 65 - 70, didnt matter if my gf was on the back or not.
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05-09-2011, 06:36 PM
#29
Changing impellers can get them going a bit faster but hull design is 90% of speed. I have a pump off an xp on mine, the same hull and I get the same speeds they do just bouncier and without reverse.
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05-09-2011, 07:33 PM
#30
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Ill be buying my own ski next summer. Right now I just have too much money going into my paint project / getting this thing reliable for the track.
Plus I still need a hitch for the MINI S lol.
Plus I still need a hitch for the MINI S lol.
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05-09-2011, 09:58 PM
#31
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I have 2 friends with those turbo hondas; nice boats overall but I'm a seadoo guy I guess...then again, I prefer turbos over centrifugal supers....ehh whatever.
The last ski i owned was a '97 xp and absolutely loved it; the old 2 stroke seadoo xp hulls were so damn light and flickable. You could easily do controllable full speed 360deg. spins without risk of killing yourself. My dad still has his '99 GSX limited, the last of the 2 person seadoos and came with their largest 2 stroke: 951cc twin @135hp. That's a 62mph ski and also quite light compared to the sleds out nowadays. Sure, the new 3+ person 4stroke skis are fast as hell and accelerate, and are very smooth due to their weight, but IMHO that takes a lot of the fun out of it. I like to be able to flick the things around, instead of just "going along for the ride".
I also had a '92 550sx jetski that my dad sold mistakenly while I was at school, relatively slow but insanely fun to ride. I will have another original hull standup kawasaki again at some point damnit.
The last ski i owned was a '97 xp and absolutely loved it; the old 2 stroke seadoo xp hulls were so damn light and flickable. You could easily do controllable full speed 360deg. spins without risk of killing yourself. My dad still has his '99 GSX limited, the last of the 2 person seadoos and came with their largest 2 stroke: 951cc twin @135hp. That's a 62mph ski and also quite light compared to the sleds out nowadays. Sure, the new 3+ person 4stroke skis are fast as hell and accelerate, and are very smooth due to their weight, but IMHO that takes a lot of the fun out of it. I like to be able to flick the things around, instead of just "going along for the ride".
I also had a '92 550sx jetski that my dad sold mistakenly while I was at school, relatively slow but insanely fun to ride. I will have another original hull standup kawasaki again at some point damnit.
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05-10-2011, 08:29 AM
#37
I have 2 friends with those turbo hondas; nice boats overall but I'm a seadoo guy I guess...then again, I prefer turbos over centrifugal supers....ehh whatever.
The last ski i owned was a '97 xp and absolutely loved it; the old 2 stroke seadoo xp hulls were so damn light and flickable. You could easily do controllable full speed 360deg. spins without risk of killing yourself. My dad still has his '99 GSX limited, the last of the 2 person seadoos and came with their largest 2 stroke: 951cc twin @135hp. That's a 62mph ski and also quite light compared to the sleds out nowadays. Sure, the new 3+ person 4stroke skis are fast as hell and accelerate, and are very smooth due to their weight, but IMHO that takes a lot of the fun out of it. I like to be able to flick the things around, instead of just "going along for the ride".
I also had a '92 550sx jetski that my dad sold mistakenly while I was at school, relatively slow but insanely fun to ride. I will have another original hull standup kawasaki again at some point damnit.
The last ski i owned was a '97 xp and absolutely loved it; the old 2 stroke seadoo xp hulls were so damn light and flickable. You could easily do controllable full speed 360deg. spins without risk of killing yourself. My dad still has his '99 GSX limited, the last of the 2 person seadoos and came with their largest 2 stroke: 951cc twin @135hp. That's a 62mph ski and also quite light compared to the sleds out nowadays. Sure, the new 3+ person 4stroke skis are fast as hell and accelerate, and are very smooth due to their weight, but IMHO that takes a lot of the fun out of it. I like to be able to flick the things around, instead of just "going along for the ride".
I also had a '92 550sx jetski that my dad sold mistakenly while I was at school, relatively slow but insanely fun to ride. I will have another original hull standup kawasaki again at some point damnit.
It is like driving an open wheel race car with bench seat.
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05-10-2011, 09:54 AM
#38
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There's more you can do with body language on an older lighter seadoo than the newer heavier skis. I'm not saying the new boats don't handle well, they just feel heavy, not "light and flickable". Yeah, yanking the bars on a new ski will make it hook and throw you into the air and probably hurt you if you're not ready for it. On the older lighter skis, you could definitely control the ski easier as it's doing it's thing. IMHO, more overall fun that way. Or I haven't been on the right "new" ski, or I need to gain some weight and strength 
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