Results 1 to 7 of 7
  1. #1
    h2jim's Avatar
    Join Date
    Nov 2008
    Location
    Ontario Canada
    Posts
    2,063
    +1
    61

    help with setting fuel pressure.

    I have a GPRSHO with an R3 reflash. I just added an ET 15.5 wheel. I am waiting for a fitting to run a reference line to my fpr to make it rising rate. Until then can I run it with just static pressure? If so any suggestions as to what pressure to set it at?


  2. #2
    Yellow93's Avatar
    Join Date
    Apr 2006
    Location
    San Antonio, Texas, United States
    Posts
    2,429
    +1
    122
    Jim can give you great advice on this topic, I would suggest you PM him! As a reference point, I am running the same setup and have my FP set at 40lbs with rising rate on. I am going to be checking AFR's this weekend to verify the tune. What injectors are you running?

  3. #3
    h2jim's Avatar
    Join Date
    Nov 2008
    Location
    Ontario Canada
    Posts
    2,063
    +1
    61
    Stock SHO injectors.

  4. #4
    Yellow93's Avatar
    Join Date
    Apr 2006
    Location
    San Antonio, Texas, United States
    Posts
    2,429
    +1
    122
    Quote Originally Posted by h2jim View Post
    Stock SHO injectors.
    There are a couple different schools of thought on this subject... I have had a very reputable tuner tell me to keep the stock injectors but upgrade the fuel pump... then I have had another equally reputable tuner tell me to leave the stock fuel pump alone and upgrade the injectors. I have a set of 2012 Subaru STI injectors on my ski... We'll see how it runs!
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	20130528_212036.jpg 
Views:	81 
Size:	57.0 KB 
ID:	302391  

  5. #5
    thats a beautiful rail man is that yours ? i would recommend a larger pump and the injectors you can do to lower the duty cycle on the stock ones but you dont need to.im pretty for the larger wheels with reflashes your gonna want the rising rate hooked up.you could set the smaller wheels static because the fuel rise isnt as much to get a good wot afr so you can get away with it static.

  6. #6
    hdlefler's Avatar
    Join Date
    Aug 2010
    Location
    Wesley Chapel, Fl
    Posts
    911
    +1
    100
    Quote Originally Posted by h2jim View Post
    I have a GPRSHO with an R3 reflash. I just added an ET 15.5 wheel. I am waiting for a fitting to run a reference line to my fpr to make it rising rate. Until then can I run it with just static pressure? If so any suggestions as to what pressure to set it at?

    Not with that set-up. Rising rate is what is needed and your most likely going to need injectors when the temps. get cooler. Start at 42lbs. Thats where I am at but I'm in Florida.

  7. #7
    Yellow93's Avatar
    Join Date
    Apr 2006
    Location
    San Antonio, Texas, United States
    Posts
    2,429
    +1
    122
    Quote Originally Posted by hialeahchiko305 View Post
    thats a beautiful rail man is that yours ? i would recommend a larger pump and the injectors you can do to lower the duty cycle on the stock ones but you dont need to.im pretty for the larger wheels with reflashes your gonna want the rising rate hooked up.you could set the smaller wheels static because the fuel rise isnt as much to get a good wot afr so you can get away with it static.
    Yeah thats my rail setup. I have the larger injectors but am also gonna do a pump for piece of mind.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Procedure for setting fuel pressure with RRFPR
    By TheBernards in forum 4-Tec Performance
    Replies: 73
    Last Post: 11-03-2013, 07:09 PM
  2. where to set fuel pressure with r3 reflash & stock wheel
    By wave15stx in forum Yamaha PWC Performance (4-stroke)
    Replies: 23
    Last Post: 05-01-2013, 01:55 PM
  3. Replies: 4
    Last Post: 08-06-2012, 11:49 AM
  4. Help with sl780 fuel problem
    By jtucker84 in forum Polaris How To & FAQs
    Replies: 13
    Last Post: 05-18-2007, 10:10 AM
  5. Help with setting a E.F.i unit
    By Hydrotherapy in forum Yamaha PWC Performance (2-stroke)
    Replies: 1
    Last Post: 11-15-2006, 11:29 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •