05-07-2009, 06:35 AM #1
- Join Date
- Oct 2006
Yamaha vs Rotax conversion costs.
just wondering what are the real world cost differences are between transplanting a Yamaha SHO motor vs. a sc'd rotax from a seadoo into a GPR hull.....
can anyone confirm what these costs are assuming one already has a running hull to use.
05-07-2009, 06:41 AM #2
the RXP could be as much as 1/2 the cost of a SHO (used).
05-07-2009, 09:25 AM #3
I have found used RXP's for $3500-$4000 in good shape around 100 hours
and sho's are only as low as $7500.
So it is what ever you want!
05-07-2009, 09:32 AM #4
I'd say it probably depends on how much you can find a used SHO motor for and how much it costs for Riva to machine the manifold for the gpr.
With conversion parts, misc parts for the conversion, and SD motor im right around the cost of what I saw a used SHO swap going for. Yamaha would still wind up being a little more but its worth it to some people depending on your personal preference
05-07-2009, 10:01 AM #5
05-07-2009, 10:30 AM #6
rotax is going to be cheaper and faster for the next few years. they have been out longer, the performance parts are readily available, and there are lots of good used parts available. the yami motor is still brand new. 1 model year so far. it puts out the same power more or less as a stock 215 rotax. aftermarket parts are not cheap or totally proven yet. Also, the used market for any of the motor and electronics just isn't there yet.
I priced out an SHO swap at over 7k just for the motor and electronics. you can get a good used doo motor complete w/ electronics for less than half that.
05-07-2009, 08:49 PM #7
I guess one question to also consider aside from cost, is weight distribution and handling... which engine performs better in the GPR hull? its not all about top speed or power, especially considering our style of riding we do here and the waters we frequent Steve.
05-07-2009, 09:16 PM #8
well, the rotax is lighter, so that also favors the rotax.
05-07-2009, 09:25 PM #9
SHO motor needs to be out for a couple more years to see if the aftermarket following is going to be as respectful as its been to the 4-tec.
Power, parts availability, and weight of the SD powerplant is pretty hard to beat right now.
05-07-2009, 09:38 PM #10
I'm not a fan of the layout of the Yami motor at all. The charger is at the front, throttle body is underneath the center of the manifold, the oil filter is practically under the exhaust manifold, and the intercooler is stuffed over in the right corner.
In the massive FZR/SHO hulls you have just enough room to get to stuff as it is. In a much smaller hull like the GPR, it would be an absolute nightmare to mod/service the motor. On the 4-tec all of those parts/areas are just a hand reach away.
Then factor in the price point for aquiring the donor ski/parts and the easy power you can make with the 4-tec, 90+ with an ECU and mid-level charger.
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