Thread: RXP-XPL Engine swap
06-24-2007, 04:05 AM #1
RXP-XPL Engine swap
I know it has been done before, but could someone post or problems they had while doing this conversion. Any help greatly appreciated.
06-24-2007, 08:27 AM #2
06-24-2007, 09:42 AM #3
its not easy, you need to remove most of the second deck and reglass all your mounts, have 2 custom driveshafts cnc machined, custom fab and weld a complete double walled stainless exhaust system, fabercated the side bubbles, upgrade to a modified rxp pump, massive wiring, etc
it will be very nose heavy too. so you will probbly have to leave it only half full of gas to keep it from nose plowing.. trust me on this one-its not going to ride like a xpl anymore.
id suggest a gpr hull instead. the xpl get a little unstable after 75
Last edited by rapidacceleration; 06-24-2007 at 05:57 PM.
06-24-2007, 09:46 AM #4
oh ya they call it a RXPL.
06-24-2007, 03:06 PM #5
- Join Date
- Jul 2006
and also rapid what speeds were you getting? isnt the gpr a better ride also...
06-24-2007, 04:24 PM #6
Thankyou for the info. Your conversion gave me the idea, by the way. Could you please tell me how much heavier the 4 stroke is compared to the 2 stroke?
I noticed that you ran the fuel tank up front. If I were to split the fuel tank into three and run 2 smaller feeder tanks at the rear, would this reduce the nose down ride?
06-24-2007, 05:55 PM #7
if i did it again i would come up with a different dual fuel tank design in the back or side.. the front mount tank is way too nose heavy at low speeds.
i was seeing 75.6 with just a external ic and rr ecu. stock sc and xpl pump
im still on my quest for 80mph, a few tweeks now with the new rxp pump and green wheel and a little prop pitching i should be there..
06-25-2007, 02:54 AM #8
So I am on the right track, then. If it is not too much to ask, could you send me some photos of the pipe work inside the rear hatch and of the engine from front on. I have seen the website and want to know more.
06-25-2007, 04:37 PM #9
I heard Rapidaccell shot out in front of everyone in Austin when they lined up and nailed the throttle. Not so sure if that would happen in a Gpr hull, right?
06-25-2007, 05:51 PM #10
Not knowing much about GPR's, I have seen some pretty fast ones here in Australia. They seem to be able to get off the line pretty quick, considering the size of the ski. With a Les Cooke motor, i think they would be virtually unstopable
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