Results 1 to 8 of 8

Thread: Why do this?

  1. #1
    Duppy no who fi frighten, Make Dem Try Good2Go16's Avatar
    Join Date
    Mar 2009
    Location
    Grand Cayman, Cayman Islands
    Posts
    489

    Why do this?

    A while back I saw a thread on here an they were cutting the veins out of the pump. what does this mod do? I think it was on a RXTX boat.


  2. #2
    mbaseball3's Avatar
    Join Date
    Jun 2007
    Location
    stockton, ca
    Posts
    748
    +1
    21
    I'd be interested with this mod. as far as I know the veins are crucial for the propulsion. any deleting of the veins would be a no no? but I could be wrong...

  3. #3
    Live to RIDE. brendus's Avatar
    Join Date
    Jan 2008
    Location
    Melbourne, Australia
    Posts
    326
    my understanding is that the veins help the prop spin as they change the direction of the water coming onto the prop. by eliminating them you reduce your rpms without reducing speed.

  4. #4
    SeaGoat's Avatar
    Join Date
    Jun 2008
    Location
    Jacksonville, N.C.
    Posts
    2,214
    +1
    2
    If you damage a vane by ingesting a rock then you can remove all the other vanes without suffering any loss of performance. lose 1 or more vanes and leave the other ones in will cause severe cavitation problems. This mod is just to avoid replacing a damaged pump.

  5. #5

    Join Date
    Aug 2006
    Location
    Gonzales, La
    Posts
    2,145
    +1
    9
    Quote Originally Posted by SeaGoat View Post
    If you damage a vane by ingesting a rock then you can remove all the other vanes without suffering any loss of performance. lose 1 or more vanes and leave the other ones in will cause severe cavitation problems. This mod is just to avoid replacing a damaged pump.
    +1

  6. #6
    Having Fun jp1300r's Avatar
    Join Date
    Sep 2005
    Location
    Florida
    Posts
    5,334
    +1
    261
    Quote Originally Posted by Good2Go16 View Post
    A while back I saw a thread on here an they were cutting the veins out of the pump. what does this mod do? I think it was on a RXTX boat.
    The pump or the pumpshoe?

  7. #7
    Moderator Snoman's Avatar
    Join Date
    Apr 2006
    Location
    South Chicagoland
    Posts
    14,688
    +1
    846
    Quote Originally Posted by jp1300r View Post
    The pump or the pumpshoe?

    The pump shoe...Taking the veins out of the pump shoe does absolutly nothing to improve performance..I had done it to one of my 06 RXPs and there is no noticeable or GPS gains...


    Quote Originally Posted by SeaGoat View Post
    If you damage a vane by ingesting a rock then you can remove all the other vanes without suffering any loss of performance. lose 1 or more vanes and leave the other ones in will cause severe cavitation problems. This mod is just to avoid replacing a damaged pump.
    +2

  8. #8
    Duppy no who fi frighten, Make Dem Try Good2Go16's Avatar
    Join Date
    Mar 2009
    Location
    Grand Cayman, Cayman Islands
    Posts
    489
    I stand corrected, I meant the pump shoe. I think they were saying it helps with pump stuffing on the X models?

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Why the hell do all 1200 do this
    By driver19 in forum Yamaha Open Discussion
    Replies: 15
    Last Post: 12-16-2010, 08:34 PM
  2. Why does my TV do this...
    By hyoctane23 in forum Open Discussion
    Replies: 7
    Last Post: 11-20-2009, 12:33 PM
  3. Why do you have to match pistons like this??
    By darrengee in forum Yamaha PWC Performance (2-stroke)
    Replies: 5
    Last Post: 05-06-2009, 02:29 PM
  4. Why do some states do this?
    By OBXJeepGuy in forum Open Discussion
    Replies: 16
    Last Post: 09-03-2008, 03:43 PM
  5. What is this part, and why do I need it??
    By boostaholic in forum Yamaha PWC Performance (2-stroke)
    Replies: 7
    Last Post: 04-30-2008, 12:21 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
  •