Results 1 to 6 of 6
  1. #1
    gordon lasiter #328's Avatar
    Join Date
    Aug 2008
    Location
    katy, texas , United States
    Posts
    1,647
    +1
    28

    which pistons work best with what valve train upgrade?

    i have heard alot of good things about the riva pistons!

    i also read that some pistons will touch the valves if you upgrade the valve train!

    i know some guys use the JE PISTONS. what are the pros and cons?

    i know some guys use the CP PISTONS. what are the pros and cons

    i know some guys use the RIVA PISTONS. what are the pros and cons.

    and which valve train work best with each of these pistons. either riva or r&d?

    i will be using the aftermarket rods with the pistons as well.


  2. #2
    Kelly_A's Avatar
    Join Date
    Dec 2009
    Location
    Central Oklahoma
    Posts
    660
    +1
    17
    I went Riva pistons and Riva valve upgrade paired with Carrillo rods, Riva outsourced the crank balance. Bore scoped at 10 hrs after rebuild - piston tops were pristine and I broke it in pretty hard.

  3. #3
    Lightning Struck's Avatar
    Join Date
    May 2011
    Location
    Davenoprt Iowa
    Posts
    714
    +1
    10
    And I would imagine RIVA outsourced the pistons as well.. When it comes to pistons, most companies metallurgy is almost identical (2618 for forged).. What it comes down to is the dimensions. There's a bit that goes into a piston, but I would imagine most would be very very similar.

    http://www.jepistons.com/TechCorner/...rminology.aspx

    Quench, squish, piston deck thickness, Compression Height, etc are little variables. If your using a stock rod, your pretty much set with a compression height. I haven't done the math on a 1.8L(just picked it up 2 weeks ago), but most of my experience is from custom ordering pistons for high boost turbocharged small block fords(1200+HP), with custom crank and rod packages.

  4. #4
    Kelly_A's Avatar
    Join Date
    Dec 2009
    Location
    Central Oklahoma
    Posts
    660
    +1
    17
    OK, Riva branded pistons then

  5. #5
    The most interesting man in the world. Nils888's Avatar
    Join Date
    Jun 2005
    Location
    California
    Posts
    4,231
    +1
    1,043
    Rius racing has there own design of CP Piston that have a much deeper valve pockets. I have been using these pistons in engines I build for customers. They are more expencive than other piston sets. They come with rings and Heavy duty wrist pins. They have been proven in yamaha turbo engines making over 500 HP.

  6. #6
    Taking money away from the Z06 Fund
    Join Date
    Sep 2007
    Location
    Gainesville, VA
    Posts
    560
    +1
    1
    I can't comment on CP pistons specific for Jet skis, but I've used CP pistons in all of my Drag cars, making 1000hp and they are stout. CP was started by engineers that used to work at JE. I would highly recommend any piston that CP makes/sells. I never had an issue with them. Manley or Carillo rods for Forged H/I beam. I wonder if anyone makes Aluminum rods for the SHO motors since most who do rebuilds spin to 8700-9000 rpms or more.

    +1 for CP!!

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. 2015 RXT-X VTech 8350 Tune with stock valve train ?
    By canuck in forum 4-Tec Performance
    Replies: 4
    Last Post: 05-27-2016, 03:11 PM
  2. Replies: 0
    Last Post: 01-08-2014, 05:46 AM
  3. Who's got the best valve train upgrade ?
    By dpracing in forum 4-Tec Performance
    Replies: 70
    Last Post: 09-12-2013, 09:05 PM
  4. Help With Valve Train Upgrade
    By edvazquez in forum Sea Doo Open Discussion
    Replies: 3
    Last Post: 07-17-2007, 09:36 PM
  5. Rotax Or Riva Valve Train Upgrade ?
    By RXP04 in forum 4-Tec Performance
    Replies: 13
    Last Post: 02-28-2007, 07:13 AM

Posting Permissions

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