Page 1 of 3 1 2 3 LastLast
Results 1 to 10 of 30

Thread: Ecu reflash

  1. #1

    Join Date
    May 2008
    Location
    metairie,la
    Posts
    709

    Ecu reflash

    Well went ut today to test out this ECU i had reflashed from stock to 8650 form powerchip inc. and the results were the same as before i did the reflash same rpm 7980/8020 same speed 76.5 any ideas wth is the problem??? any of you guys had this happen??


  2. #2
    Site Admin Green Hulk's Avatar
    Join Date
    Apr 2005
    Location
    Morgan City, LA
    Posts
    36,398
    +1
    2,524
    Rich, you have to depitch to get the RPM's up or make more power. Just changing your rev limiter doesn't mean you will magically turn those RPM's.

    Raising the rev limiter doesn't cause your ski to make more power..... it just allows it to turn more RPM.

  3. #3

    Join Date
    May 2008
    Location
    metairie,la
    Posts
    709
    Quote Originally Posted by Green Hulk View Post
    Rich, you have to depitch to get the RPM's up or make more power. Just changing your rev limiter doesn't mean you will magically turn those RPM's.

    Raising the rev limiter doesn't cause your ski to make more power..... it just allows it to turn more RPM.
    i was under the impression that i would turn the 8500 which would result in more power/speed. but now since i cant how do i get to turn more rpms

  4. #4
    My son (mohawk man) jeffsntx's Avatar
    Join Date
    Sep 2006
    Location
    Belton TX
    Posts
    2,598
    +1
    1
    Repitch the prop.

  5. #5

    Join Date
    May 2008
    Location
    metairie,la
    Posts
    709
    Quote Originally Posted by jeffsntx View Post
    Repitch the prop.
    right i know that, but what i am saying is that i am running a 15/22 pitch at the above rpms so if i pitch down to bring up the rpms i will lose on the top end wont i? i am not worried about hole shot at all. so what i am wondering is the reflash for higher rpms is for more bottom end????

  6. #6
    My son (mohawk man) jeffsntx's Avatar
    Join Date
    Sep 2006
    Location
    Belton TX
    Posts
    2,598
    +1
    1
    Higher RPM's = Higher top speed when nothing else changes in the PWC world. You need to take some pitch out of the trailing edge to get the rpm's in the range that you desire. You will probably not notice any difference in the lo end.

  7. #7

    Join Date
    May 2008
    Location
    metairie,la
    Posts
    709
    Quote Originally Posted by jeffsntx View Post
    Higher RPM's = Higher top speed when nothing else changes in the PWC world. You need to take some pitch out of the trailing edge to get the rpm's in the range that you desire. You will probably not notice any difference in the lo end.
    well i am going to put my 15/20 on and go test again monday...this should give me more r'ss and topend right?

  8. #8
    My son (mohawk man) jeffsntx's Avatar
    Join Date
    Sep 2006
    Location
    Belton TX
    Posts
    2,598
    +1
    1
    Correct.

  9. #9

    Join Date
    May 2008
    Location
    metairie,la
    Posts
    709
    got it thanks for the help.

  10. #10
    King_Of_Fun's Avatar
    Join Date
    Jul 2007
    Location
    Catawba Island, Ohio
    Posts
    2,703
    Higher rpms with a gear-driven SC equals more power = more speed. Depitch the impeller for more rpms and see the increase in speed due to more hp. If you want to test the ECU, jump a wave at WOT and see what the tach says. The reflash gets you no more horse power, just the ability to turn higher rpms... Ron

Page 1 of 3 1 2 3 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. powerchip ecu reflashing
    By allstar71 in forum Yamaha PWC Performance (4-stroke)
    Replies: 42
    Last Post: 05-13-2009, 07:36 AM
  2. Replies: 0
    Last Post: 03-02-2009, 01:29 PM
  3. Rotax Racing Ecu Reflash
    By Sundance in forum 4-Tec Performance
    Replies: 36
    Last Post: 03-14-2008, 02:00 PM
  4. 250x KDS software & ecu reflash
    By born riding in forum Kawasaki PWC Performance (4-stroke)
    Replies: 5
    Last Post: 03-04-2008, 08:26 PM
  5. RR ECU reflash
    By Lurker in forum 4-Tec Performance
    Replies: 1
    Last Post: 08-29-2006, 09:14 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
  •