Page 1 of 2 12 LastLast
Results 1 to 10 of 14
  1. #1
    Yellow93's Avatar
    Join Date
    Apr 2006
    Location
    San Antonio, Texas, United States
    Posts
    2,451
    +1
    123

    Help me pick my next mods...

    Here is what my 02 GPR currently has:

    - D-plate
    - Jetworks
    - Flame arrestors
    - rejet (125/110)
    - 13/19
    - 1200 grate
    - old Riva plate with a Woody cut on it shimmed at 950 AND an Island Lvl 4 Speed Plate
    - Riva rec heads (145 psi)
    - sealed pump and shoe
    - cold air mods (cowling trimmed, bucket modded, wind screen spaced)

    I could use some opinions on what my next round of mods should be for the most bang-for-my-buck speed improvements. I have only had the ski out once and GPS was 62.9 @7000 on Tiny Tach... I need to find some flatter water to see if I can improve on that, and then see what I can get by putting the Island lvl 4 plate on it... but you get the idea!

    What should I do next? I am likely gonna index the plugs to see if I can get something there and then fill some holes...


  2. #2
    Duke's Avatar
    Join Date
    Jul 2006
    Location
    Florida
    Posts
    9,952
    +1
    409
    VF3s would be on my list along with the updated 05 pump and DF. In that order.

  3. #3
    flyboy's Avatar
    Join Date
    Nov 2005
    Location
    Destin, FL
    Posts
    1,585
    +1
    1
    don't know how deep you want to dive, but almost for the price of reeds, you can get porting done

  4. #4
    Yellow93's Avatar
    Join Date
    Apr 2006
    Location
    San Antonio, Texas, United States
    Posts
    2,451
    +1
    123
    I'm thinking reeds and pump like Duke suggested instead of the porting because my ultimate goal would probably be a GroupK 1390 down the road.

    Anything else that would help out? Any ignition mods? I am looking for an 800 grate as well..

  5. #5
    Quote Originally Posted by flyboy View Post
    don't know how deep you want to dive, but almost for the price of reeds, you can get porting done
    I would not waste my money on Porting a 1200.

    I saw no gains porting my 1200 back in the day like I saw on my 1300
    Last edited by Fercho; 07-06-2007 at 01:48 PM.

  6. #6
    Duke's Avatar
    Join Date
    Jul 2006
    Location
    Florida
    Posts
    9,952
    +1
    409
    Stay away from ignition unless you absolutely have to go there.

    1390 down the road would be an excellent choice. I hate to do just porting without adding new pistons and rings etc.. Also the head usually has to be redone to achieve desired compression.

  7. #7
    Yellow93's Avatar
    Join Date
    Apr 2006
    Location
    San Antonio, Texas, United States
    Posts
    2,451
    +1
    123
    Should I go with the VF3's or VF2's?? I have heard alot of conflicting info lately from very reliable sources... keep in mind in my overall scheme of things I want as fast as I can get but with minimal maintenance... I don't want to wrench more than ride! If I wanted that I would go back deep into drag racing again!

  8. #8
    Never say never KirkF350's Avatar
    Join Date
    Jun 2005
    Location
    Colleyville, Texas
    Posts
    4,455
    +1
    15
    Duke has it right. My set up is similar to yours. I added the V3 reeds, the 05 pump set up with 14/20 Dyno, flat water, and hello 70 +.
    Truing your hull and filling those holes will help a lot. Put the 800 on there only for speed runs and testing. I had mine on and quickly put the 1200 grate back on.

  9. #9
    Moderator RX951's Avatar
    Join Date
    Apr 2005
    Location
    San Antonio, Texas
    Posts
    16,075
    +1
    28
    Quote Originally Posted by Yellow93 View Post
    Should I go with the VF3's or VF2's??

    VF3's

  10. #10
    Yellow93's Avatar
    Join Date
    Apr 2006
    Location
    San Antonio, Texas, United States
    Posts
    2,451
    +1
    123
    Quote Originally Posted by RX951 View Post
    VF3's
    Why VF3's? What makes them better than the VF2's? I have been told by a respected tuner on here that VF2's have more top end but VF3's last longer... what sort of life am I looking at here? I don't put a ton of hours on my ski's...

    Would somebody PM me what the cost of VF3's is please...

    also, based on my setup, would I need to add or do anything to my setup to properlly add the VF2 or 3's to my ski?

Page 1 of 2 12 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Help me pick my next new (or used) PWC
    By kmaher in forum Yamaha Open Discussion
    Replies: 4
    Last Post: 07-19-2015, 09:29 PM
  2. Help me pick my next mod
    By teefive in forum 4-Tec Performance
    Replies: 13
    Last Post: 06-22-2015, 12:11 PM
  3. Help me pick my next ride
    By WaterDR in forum Yamaha PWC Performance (4-stroke)
    Replies: 34
    Last Post: 02-10-2013, 11:12 PM
  4. Help me with my first mod plz
    By fzr_rider in forum Yamaha PWC Performance (4-stroke)
    Replies: 18
    Last Post: 06-15-2010, 09:35 PM
  5. Help me with my next mod!
    By Yellow93 in forum Yamaha PWC Performance (2-stroke)
    Replies: 16
    Last Post: 06-09-2006, 11:07 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
  •