Results 1 to 10 of 10
  1. #1

    Piston Identification

    Looking for some help from the forum guru's. I picked up an 08 RXP 215 with some motor issues. When I pulled the head off I was thrown for a loop. The pistons were a flat top piston 1 size over. This is supposedly a rebuilt motor from seadoo. Every supercharged seadoo piston I have seen is a cupped piston to lower compression. Have any of you guru's seen a flat top piston from seadoo in a supercharged application? Thanks in advance. Click image for larger version. 

Name:	photo.jpg 
Views:	81 
Size:	123.3 KB 
ID:	311626

  2. #2
    boost junkie skidoochris's Avatar
    Join Date
    Mar 2012
    Davison, Mi
    BRP does not make any high comp forged pistons and I don't think any oversized
    but CP does
    Click image for larger version. 

Name:	Torx-CP-103-2.jpg 
Views:	52 
Size:	100.3 KB 
ID:	311628

  3. #3
    big john's Avatar
    Join Date
    Sep 2010
    Cocoa Beach, Florida, United States
    thats a 11 to 1 piston, usually custom made

  4. #4
    I talked to my dealer and he told me that was seadoo's 1 over piston.

  5. #5
    could they be N/A pistons

  6. #6
    speedskixp's Avatar
    Join Date
    Feb 2008
    venice fl.
    Cast 185 pistons.

  7. #7
    Looks like the n/a pistons to me also.

  8. #8
    Wrong pistons in application..... Or a 185 HP N/A bottom end was put in the boat to sell it...

  9. #9
    turns out seadoo sent a NA motor to the dealer when they ordered a reman motor. the funny thing is that it was run like this in a rxp 215 machine for 2 years before it finally failed a piston. I bet she was zippy with the higher compression piston. lol

  10. #10
    Eastside Powersports Slow 91's Avatar
    Join Date
    Sep 2008
    River Crew CT
    The only motor that uses those pistons are the 155-130 hp. 185, 215, 255 all use the same compression with the dish, and the 185's are cast.

    And that's a 100% oem seadoo piston

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. piston identification
    By redlineracing600 in forum Polaris Open Discussion
    Replies: 4
    Last Post: 02-18-2009, 10:32 PM
  2. Just how much Boost can the cast pistons handle safely?
    By Pale Rider in forum 4-Tec Performance
    Replies: 45
    Last Post: 04-13-2006, 10:06 AM
  3. Best Piston
    By tmoschella in forum 4-Tec Performance
    Replies: 5
    Last Post: 03-04-2006, 08:38 AM
  4. Should i really be scared of my cast pistons?
    By 01xdime in forum 4-Tec Performance
    Replies: 14
    Last Post: 12-06-2005, 02:31 PM
  5. Pro X Piston question
    By spdracr in forum Yamaha PWC Performance (2-stroke)
    Replies: 7
    Last Post: 09-18-2005, 04:23 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