Results 1 to 2 of 2
  1. #1

    Need Help On A Custom 320+HP Project Please!

    Hi Guys,
    I am new to the forum but I see that there are many knowlegeable people on here and I could use some help. I currently have a 1999 Seadoo Speedster SK, I blew up one of the motors last fall so my buddy and myself came up with the idea of putting a pair of CBR 1000RR Street Bike motors in it, they are 160+ HP each. I am a mechanical engineer and I did some calculations and the stock driveshafts arent big enough to handle the torque.

    I am looking at how I can either get a 140mm impeller with a bigger splined bore and machine new driveshafts myself, or would other jet pump housings bolt up with a bigger impeller and bigger splined bore? I calculated the shaft size based on max torque and I will need around a 1 inch shaft or larger. All the help will be greatly appreciated. Thank you all for your time!

  2. #2

    Join Date
    May 2007
    Why not put in 2 rxp or rxt motors if you are going to go custom. 215 h/p x 2= 430 h/p and you have alot of mods you can buy. Find 2 skis that are damaged with good jet pumps and motors(and all the other parts). You have just solved your shaft problem.

    Just an idea!!!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Need help on wave venture 700 regarding compression...please read....
    By dontknowcrap in forum Yamaha Old School Skis
    Replies: 10
    Last Post: 07-03-2014, 12:32 PM
  2. Need Help Custom 320+HP Project
    By ride_hyperlite in forum Conversion PWC Performance Skis
    Replies: 8
    Last Post: 04-17-2009, 11:48 AM
  3. Need help on a 440!!
    By thesepaperwings in forum Kawasaki Open Discussion
    Replies: 1
    Last Post: 11-15-2007, 08:36 AM
  4. Need Help On Motor Mounds
    By wsony13 in forum Polaris Open Discussion
    Replies: 4
    Last Post: 08-26-2007, 10:54 PM
  5. Replies: 11
    Last Post: 08-25-2006, 06:43 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts