Page 1 of 2 1 2 LastLast
Results 1 to 10 of 20
  1. #1

    sleeved vs nickasil

    I am rebuildinga 1200pv. I have found two ways to approach the cylinders. one is nickasil plating (factory) and the other is to machine the cylinder and use a cast iron sleeve like 99% of skis. is there a real difference. the sleeves are much cheaper


  2. #2
    Moderator RX951's Avatar
    Join Date
    Apr 2005
    Location
    League City, Texas
    Posts
    16,066
    +1
    23
    Nikasil last much longer and is more tolerant of temperature variations. I personally would get the cylinders sent off to a company that Niks the cylinders. There is a big difference.

    Many Top engines in the world use Nikasil....

    Nascar
    BMW
    Mercedes
    Porsche
    Rally
    Motor-cross racing [cylinders and clutches]
    Snomobiles
    Airplane motors

    Companies such as US Chrome and Millenium Technologies do this every day for PWC
    http://greenhulk.net/forums/showthre...asil+companies
    .
    .
    .

  3. #3
    philip_gpr's Avatar
    Join Date
    Dec 2005
    Location
    Canada
    Posts
    2,724
    +1
    3
    agreed

    remember these jetski motors spend the bulk of their time running flat out at 7,000 rpm

  4. #4
    Yes, get em nicasiled... The stuff is amazing... My cylinders look like new with 117 hours of abuse.. Its one of the best investments you can make on your engine for durability and longevity..

  5. #5
    vomitspot's Avatar
    Join Date
    Apr 2006
    Location
    mobile alabama
    Posts
    722
    plated cylinders also transfer heat better than sleeved cylinders do
    i have a good plated cyl/piston if your interested
    pm me for details
    jason

  6. #6
    Moderator RX951's Avatar
    Join Date
    Apr 2005
    Location
    League City, Texas
    Posts
    16,066
    +1
    23
    Here are two good threads for your build..as well as all our stickies in the Yamaha section.

    http://greenhulk.net/forums/showthread.php?t=16309

    http://rivaforums.com/eve/forums?a=t...093#2571066093

  7. #7
    Moderator DrewNJ's Avatar
    Join Date
    Dec 2005
    Location
    Marlton, NJ
    Posts
    3,716
    +1
    1
    Another vote for Nikasil..
    I picked up a basket case ski for a winter project with 175 hours on a stock 1200 motor and when I pulled the head I can still see the cross hatch pattern along the cylinder walls. The stuff is tough..
    Millenium does a great job and is only about $200-$250 a cylinder depending on if it needs welding or not..

    Not saying that there's anything wrong with sleeves but Nik is better...

  8. #8
    You guys are great. i think the best thing I can do is find a good long block. The engine I am working on has sleeved cylinders. one of these is shot. cases busted. and the crank shot. I have a line on a complete running low hour engine from a wreck ski.

  9. #9
    Quote Originally Posted by jeff12pv View Post
    You guys are great. i think the best thing I can do is find a good long block. The engine I am working on has sleeved cylinders. one of these is shot. cases busted. and the crank shot. I have a line on a complete running low hour engine from a wreck ski.
    I bet it's an SBT rebuilt Motor!

  10. #10
    also one of the reed cages was shot.

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Replies: 0
    Last Post: 03-14-2013, 09:09 PM
  2. Yamaha GP1200R - Steel Sleeve vs factory sleeve
    By D88827 in forum Yamaha PWC Performance (2-stroke)
    Replies: 6
    Last Post: 01-21-2012, 02:27 AM
  3. nikisil vs steel sleeves
    By cubex in forum Yamaha PWC Performance (2-stroke)
    Replies: 20
    Last Post: 10-30-2011, 12:43 PM
  4. Nicasil vs iron sleeve
    By Philou548 in forum MSX/Matrix
    Replies: 5
    Last Post: 10-02-2011, 01:49 AM
  5. RXP speeds vs rpm and impeller pitch
    By Vern in forum 4-Tec Performance
    Replies: 21
    Last Post: 02-10-2007, 11:35 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
  •