Results 1 to 9 of 9

Thread: stock fuel pump rating?

  1. #1

    Offline
     
    Join Date
    May 2005
    Last Online
    03-07-2007
    Posts
    35
    Country
    Other
    Car
    galant
     

    stock fuel pump rating?

    ehm.. silly question.. but at what is the stock fuel pump of the vr4 rated? i had an aftermarket (255 walbro) pump to start with and i dont think its doing my engine any good (too rich).

    looking to put it back to stock.. but i dont know the stock rating..

    on a side note, would installing a fuel pressure regulator help?

  2. #2
    richy rich's Avatar

    Offline
     
    Name
    Richard
    Join Date
    Dec 2004
    Last Online
    29-07-2023
    Posts
    6,523
    Country
    United Kingdom
    Location
    Stoke on trent
    Car
    2000 vr4 legnum
     
    id change the fpr first (wodj) might still have 1.

  3. #3

    Offline
     
    Name
    Brad
    Join Date
    Jan 2004
    Last Online
    20-10-2011
    Posts
    22,175
    Country
    New Zealand
    Location
    Karaka
    Car
    F/lift 5MT VR-4
     
    If you change just the fuel pump, you'll probably run a bit rich, you may want to get a air/fuel controller and get it tuned. The stock fuel pump is good for about 185-190kw at the wheels

  4. #4

    Offline
     
    Join Date
    May 2005
    Last Online
    03-07-2007
    Posts
    35
    Country
    Other
    Car
    galant
     
    actually, its a compound problem..

    i have an apex afc neo to control a/f, but for some reason my TPS wont read correctly, so in effect, we couldn't finely tune hi/lo throttle..

    argh! i also have this suspicion that the people who put my engine in switched my throttle body. correct me if i'm wrong but the 6a13 has two TPS units right? mine has only one..

  5. #5
    richy rich's Avatar

    Offline
     
    Name
    Richard
    Join Date
    Dec 2004
    Last Online
    29-07-2023
    Posts
    6,523
    Country
    United Kingdom
    Location
    Stoke on trent
    Car
    2000 vr4 legnum
     
    Quote Originally Posted by oliver
    actually, its a compound problem..

    i have an apex afc neo to control a/f, but for some reason my TPS wont read correctly, so in effect, we couldn't finely tune hi/lo throttle..

    argh! i also have this suspicion that the people who put my engine in switched my throttle body. correct me if i'm wrong but the 6a13 has two TPS units right? mine has only one..
    some one has done a single turbo conversion by the sounds of things..

  6. #6

    Offline
     
    Name
    Brad
    Join Date
    Jan 2004
    Last Online
    20-10-2011
    Posts
    22,175
    Country
    New Zealand
    Location
    Karaka
    Car
    F/lift 5MT VR-4
     
    TPS = throttle position sensor right? Why would a single turbo mean you would need to disconnect one of them? I didn't realise there was two anyway.

    I would suggest you leave the walbro in there, and work on sorting out the A/F problem and the TPS problem.

  7. #7
    Nutter_John's Avatar

    Offline
     
    Name
    John
    Join Date
    Sep 2005
    Last Online
    Membership ID
    269
    Posts
    11,656
    Country
    United Kingdom
    Location
    Luton
    Car
    FL Galant VR4
    My Garage
    Visit
     
    There is a pin on the ecu to read the tps , have it on my apexi boost controller


    Kanji Automotive Solutions - Looking after your Pride and Joy

    Servicing - Upgrades - Tuning - Pre Used Parts - Undersealing - Advice - Consultancy
    PM or Call me for any work requests or to discuss your requirements
    Ebay Shop -> http://stores.ebay.co.uk/sun-wizzard...=p4634.c0.m322


    To contact the CVR4 Staff please see HOW TO: Contact Committee or Moderators

  8. #8

    Offline
     
    Join Date
    May 2005
    Last Online
    03-07-2007
    Posts
    35
    Country
    Other
    Car
    galant
     
    i still have two turbos.. hehe!

    i had my 2.5 v6 galant converted into a vr-4.. im just not sure if the guys who did the car did it right.. my throttle body looks different from what i gather it should..

    sigh. will try installing an fpr

  9. #9
    ritch_w's Avatar

    Offline
     
    Name
    Ritch
    Join Date
    Apr 2003
    Last Online
    17-09-2015
    Posts
    3,634
    Country
    Scotland
    Location
    Ayrshire, Scotl
    Car
    '03 Colt 16v &
     
    post some pics
    BMW E60 525i (3.0) M-Sport.

Posting Permissions

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