1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

TRD Supercharger Lean Condition

Discussion in '1st Gen. Tacomas (1995-2004)' started by ibuiltmine-o1oo, Dec 28, 2008.

  1. Dec 28, 2008 at 8:52 AM
    #1
    ibuiltmine-o1oo

    ibuiltmine-o1oo [OP] Member

    Joined:
    Dec 28, 2008
    Member:
    #11955
    Messages:
    7
    Gender:
    Male
    Ok, Ive been doing a lot of reading about the tacoma TRD supercharger, and the tacoma's fuel system.... Now, I consider myself failry savvy on moder engines, and fuel sysltems, especially when it comes to a boosted modern fuel injected engine.....
    The tacoma, it seems to me, has a very poor fuel system. Now, I have yet to get some gauges onto the tacoma to see whats going on in the motor, but seems like the fuel system just cant keep up!

    This thing doesnt even have bosch injectors in it, and going down the interstate at 75mph it was pinging like crazy!


    The 7th injector mod, TO ME, seems like a cop out, a bandaid, and for 1000 bucks I know I can upgrade the stock fuel system to work...




    Does anyone have a good running tacoma supercharged with an upgraded computer, and fuel system without using the 7th injector?




    Where is some stock toyota fuel injector info, and fuel fump and pressure and regulator info?

    Thanks!
     
  2. Dec 28, 2008 at 9:48 AM
    #2
    humanoid

    humanoid bite me

    Joined:
    Jun 27, 2007
    Member:
    #1932
    Messages:
    2,744
    Gender:
    Male
    Sunny SoCal
    Vehicle:
    I had a '99 Xtra Cab PreRunner SR5 V6
    You HAVE to get the fuel mods for the SC or you'll still get the pinging. Check out urdusa.com for some options.
     
  3. Dec 28, 2008 at 10:13 AM
    #3
    ibuiltmine-o1oo

    ibuiltmine-o1oo [OP] Member

    Joined:
    Dec 28, 2008
    Member:
    #11955
    Messages:
    7
    Gender:
    Male
    YEah, I was just there. Lots of cool stuff!
    BUt in a dealer installed setup, why why WHY would they install the blower without any fuel upgrades? Its nuts.
    A dealer installed Item usually doesnt effect the warranty, but to me this is a big liability to toyota.
    Lean is Mean, but it sure doesnt do good for the longevity of the engine.

    Are the stock fuel injectors just maxed out, or is the toyota computer a closed loop system incapable of realising the extra air, therefore no extra fuel is introduced.

    The o2 sensor doesnt see how lean the truck is running? It should throw a code, otherwise what use is the o2 sensor, and the mass air flow sensor?


    Its just dumb. I have a good friend with a 99 GTP 3.8 with the M90 blower. He had 400 horse dyno proven to the ground with the only mods being a pulley, a pump and regulator!
     
  4. Dec 28, 2008 at 1:58 PM
    #4
    TRD4x4858

    TRD4x4858 Taco Traitor!

    Joined:
    Oct 20, 2008
    Member:
    #10117
    Messages:
    3,056
    Gender:
    Male
    San Diego
    Vehicle:
    95 Jeep XJ
    BONE STOCK! lol
    Ive seen people swap pumps and injectors to solve the pinging problem, or doing the 7th injector mod
     
  5. Dec 28, 2008 at 3:42 PM
    #5
    ibuiltmine-o1oo

    ibuiltmine-o1oo [OP] Member

    Joined:
    Dec 28, 2008
    Member:
    #11955
    Messages:
    7
    Gender:
    Male
    What do you use to tune the computer? I can do the pump and injectors and all that no problem, but I need to know what software and hardware I need to tune the computer....
     
  6. Dec 28, 2008 at 3:48 PM
    #6
    humanoid

    humanoid bite me

    Joined:
    Jun 27, 2007
    Member:
    #1932
    Messages:
    2,744
    Gender:
    Male
    Sunny SoCal
    Vehicle:
    I had a '99 Xtra Cab PreRunner SR5 V6
  7. Dec 28, 2008 at 3:55 PM
    #7
    dually

    dually Low and slow

    Joined:
    Jul 29, 2008
    Member:
    #8205
    Messages:
    3,113
    Gender:
    Male
    Interstate underpass
    Vehicle:
    05 Indigo 4wd Longbed
    Not as many as the 98..
    You need a wideband to tell your AFR's. Id suggest the URD 7th injector kit. Then you wouldnt have to replace each injector. If you're feeling crazy, get a piggyback ECU, then you would be able to adjust timing to control ping also...
     
  8. Dec 28, 2008 at 3:56 PM
    #8
    ibuiltmine-o1oo

    ibuiltmine-o1oo [OP] Member

    Joined:
    Dec 28, 2008
    Member:
    #11955
    Messages:
    7
    Gender:
    Male
    looks like they have everything you need to do it right. Its not cheap... like the injectors. pretty much the same high impedence injectors out of a ford mustang, just some mods to make it fit the stock rail.....400 bucks for the set of 6!
    They are like 5 bucks each at the junkyard!
     
  9. Dec 28, 2008 at 3:57 PM
    #9
    ibuiltmine-o1oo

    ibuiltmine-o1oo [OP] Member

    Joined:
    Dec 28, 2008
    Member:
    #11955
    Messages:
    7
    Gender:
    Male
    This technology stuff doesnt have to be expensive... you just need to know where to look, do some research, and you can find what you need cheap.
    The trick is knowing what to look for!
     
  10. Dec 28, 2008 at 3:57 PM
    #10
    dually

    dually Low and slow

    Joined:
    Jul 29, 2008
    Member:
    #8205
    Messages:
    3,113
    Gender:
    Male
    Interstate underpass
    Vehicle:
    05 Indigo 4wd Longbed
    Not as many as the 98..
    I wouldnt trust USED injectors...
     
  11. Dec 28, 2008 at 4:02 PM
    #11
    ibuiltmine-o1oo

    ibuiltmine-o1oo [OP] Member

    Joined:
    Dec 28, 2008
    Member:
    #11955
    Messages:
    7
    Gender:
    Male
    Why? All injectors are used injectors. Id trust an injecotr that has put 100,000 troublefree miles on a car, rather then a brand new popoff directly from a some cambodian sweatshop mass production factory...
    Besides, if you have $10 multimeter you can test an injector in 5 seconds to see if it works right or not....
    you know I guess, the less work you want to do the more it cost. I want it all for nothing, so im willing to dive through a junkyard, test injectors, install my own pump, get the test equipmet, and learn the right way to do things myself.....
    shoot you could trow a 2 barel carb on top of the manifold and dial it in to suplement the extra fuel it needs in the top end, but why not just do it right the first time
     
  12. Dec 28, 2008 at 4:05 PM
    #12
    dually

    dually Low and slow

    Joined:
    Jul 29, 2008
    Member:
    #8205
    Messages:
    3,113
    Gender:
    Male
    Interstate underpass
    Vehicle:
    05 Indigo 4wd Longbed
    Not as many as the 98..
    Its your money, i surely dont give a shit. If you know what to do.. go do it.
     
  13. Dec 28, 2008 at 4:07 PM
    #13
    TRD4x4858

    TRD4x4858 Taco Traitor!

    Joined:
    Oct 20, 2008
    Member:
    #10117
    Messages:
    3,056
    Gender:
    Male
    San Diego
    Vehicle:
    95 Jeep XJ
    BONE STOCK! lol
  14. Dec 28, 2008 at 4:18 PM
    #14
    ibuiltmine-o1oo

    ibuiltmine-o1oo [OP] Member

    Joined:
    Dec 28, 2008
    Member:
    #11955
    Messages:
    7
    Gender:
    Male
  15. Dec 28, 2008 at 4:28 PM
    #15
    TRD4x4858

    TRD4x4858 Taco Traitor!

    Joined:
    Oct 20, 2008
    Member:
    #10117
    Messages:
    3,056
    Gender:
    Male
    San Diego
    Vehicle:
    95 Jeep XJ
    BONE STOCK! lol
    Yeah cuz you can download the software but your gonna need to find some kind of piggy back so I think that just getting the piggyback from urd is the easiest way to go
     
To Top