Results 1 to 6 of 6
  1. #1

    300x Port the head this winter?

    Is it worth it on a virtually stock machine? My experience has been that forced induction engines respond well to head work. Thoughts?


  2. #2
    nicjak's Avatar
    Join Date
    Mar 2008
    Location
    Warragul, Downunder
    Posts
    7,794
    +1
    625
    didnt see any gains on the 250 when i done it, i think your theory is the other way around.
    the guy that ported it said the stock ports were very well flowed from the factory

  3. #3
    Banned User
    Join Date
    Jan 2009
    Location
    LA/oc
    Posts
    3,911
    +1
    129
    Quote Originally Posted by nicjak View Post
    didnt see any gains on the 250 when i done it, i think your theory is the other way around.
    the guy that ported it said the stock ports were very well flowed from the factory
    Yep there's not much room for improvement on this head. It's not like taking a shitty 350 head and porting it and gaining big numbers. The $ will def not be worth the gain on this motor.

  4. #4
    nicjak's Avatar
    Join Date
    Mar 2008
    Location
    Warragul, Downunder
    Posts
    7,794
    +1
    625
    agree, i had a stock head, then ported the new one, it cracked, then left the next one alone and no noticeable gains were achieved.

  5. #5
    Thanks for the info.

  6. #6
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
    Join Date
    May 2008
    Location
    Houston
    Posts
    4,486
    +1
    320
    I would port the blower before I did the head, I know that is a popular mod on the lightning an cobra blowers. The heads are pretty good on the kawi skis I did some work on my 15f head but it was more cleaning the buildup and salt than anything else.

    Sean

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. A -STAR STAMP- on the inside of the head? What is this?
    By trofodotiki in forum 4-Tec Performance
    Replies: 5
    Last Post: 07-02-2016, 04:15 PM
  2. Is this an anode in the head (FX HO '07)?
    By aquaaddict in forum Yamaha PWC Performance (4-stroke)
    Replies: 3
    Last Post: 11-17-2015, 11:29 AM
  3. Thought I blew up the clutch this weekend
    By Lurker in forum 4-Tec Performance
    Replies: 4
    Last Post: 10-26-2005, 11:42 PM
  4. porting the pump?
    By Krazy-K in forum 4-Tec Performance
    Replies: 5
    Last Post: 08-30-2005, 09:42 PM
  5. Someone tell me what the hell this is
    By peteshauling in forum Sea Doo Open Discussion
    Replies: 7
    Last Post: 08-28-2005, 10:19 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
  •