Results 1 to 8 of 8

Thread: Pump Tunnel

  1. #1

    Pump Tunnel

    What puts so much stress on the gpr's pump tunnel. Does installing a aftermarket intake grate put alot of stress on it.


  2. #2
    Moderated
    Join Date
    Oct 2006
    Posts
    3,711
    the pump tunnel on a gpr is weak by design and we make it worse by shoving more water though it.

  3. #3
    Mike xsockguyx's Avatar
    Join Date
    Sep 2007
    Location
    NJ
    Posts
    1,744
    +1
    2
    +1 the 2003 GPR pump tunnels were ticking time bombs and at some point you were sinking. Even with a stock prop and a after market intake grate its always good to reinforce that tunnel

  4. #4
    Hydrotoys's Avatar
    Join Date
    Jul 2005
    Location
    Mesa, AZ
    Posts
    16,712
    +1
    85
    NO watercraft was ever designed to go over 65mph... We are pushing the GPR over 100mph now... What do YOU think makes it "weak?"

    There isn't a fast model of watercraft on the water that isn't dealing with an intake grate pulling out, or shoe breaking in half, or pump tunnel cracking, or pump viens blowing out.

    We are pushing the limits... that is why we do the reinforcements, help each other out, and try to fix the so-called "weak spots."

  5. #5
    zx11rider's Avatar
    Join Date
    Jun 2009
    Location
    Cape Coral
    Posts
    1,132
    The rxt seadoo is having problems with the pump tunnel cracking also do your self a favor and fix the pump tunnel first before any mods so you know your safe. Ron

  6. #6
    like this:
    Last edited by Pale Rider; 01-19-2010 at 05:24 PM.

  7. #7
    32 Valves To Love! Racecar_Dave's Avatar
    Join Date
    Jul 2009
    Location
    Alum Creek
    Posts
    635
    +1
    2
    This too, while your at it

  8. #8
    Mike xsockguyx's Avatar
    Join Date
    Sep 2007
    Location
    NJ
    Posts
    1,744
    +1
    2
    Quote Originally Posted by Racecar_Dave View Post
    This too, while your at it
    and a heavy duty pump hose

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Diy pump tunnel reinforcement.
    By Pistonwash in forum Yamaha How To & FAQs
    Replies: 229
    Last Post: 11-29-2013, 12:13 PM
  2. Check your pump tunnels ...
    By Vern in forum 4-Tec Performance
    Replies: 18
    Last Post: 09-02-2008, 09:24 PM
  3. Pump tunnel reinforcement? JD1?
    By Vern in forum 4-Tec Performance
    Replies: 11
    Last Post: 01-30-2006, 05:34 PM
  4. PUMP TUNNEL REINFORCEMENT KIT
    By ABBOTT in forum Yamaha How To & FAQs
    Replies: 13
    Last Post: 01-08-2006, 11:41 AM
  5. Reinforcement of pump tunnel area around carbon ring
    By Green Hulk in forum 4-Tec Performance
    Replies: 12
    Last Post: 08-03-2005, 03:13 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
  •