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Best carb for offroad application?

Discussion in 'Performance' started by Sho_Tyme671, Jul 28, 2020.

  1. Jul 28, 2020 at 9:32 PM
    #1
    Sho_Tyme671

    #1
    Sho_Tyme671 [OP] New Member

    Joined:
    Jul 24, 2020
    Member:
    #15704
    Messages:
    7
    First Name:
    Josh
    Vehicle:
    '84 Runner 22r
    6'' Lift and Micky Ts that's all she needs
    Getting rid of my old stock intake would love to know what you guys think of weber downdraft
     
    Sho_Tyme671, Jul 28, 2020
    #1
  2. Jul 29, 2020 at 7:27 AM
    #2
    catus

    #2
    catus New Member

    Joined:
    Jul 25, 2019
    Member:
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    Messages:
    927
    Gender:
    Male
    Centennial, CO
    Vehicle:
    2019 Tundra Double Cab TRD Limited
    No major mods yet
    Might want to throw in some details on the vehicle, Sho...:headbang:
     
    catus, Jul 29, 2020
    #2
  3. Jul 29, 2020 at 8:56 AM
    #3
    Sho_Tyme671

    #3
    Sho_Tyme671 [OP] New Member

    Joined:
    Jul 24, 2020
    Member:
    #15704
    Messages:
    7
    First Name:
    Josh
    Vehicle:
    '84 Runner 22r
    6'' Lift and Micky Ts that's all she needs
    My bad. Getting rid of the stock Aisin 2bbl. Looking at the Weber 38 carb kit from LCE and emissions delete. Will be doing the emissions delete regardless.

    LCEngineering Kit includes:
    -Offenhauser manifold
    -Weber 38 2bbl
    -Install hardware
     
    Sho_Tyme671, Jul 29, 2020
    #3
  4. Oct 1, 2020 at 3:24 PM
    #4
    atgparker

    #4
    atgparker Cal Poly, ETME 1988

    Joined:
    Jun 20, 2018
    Member:
    #6296
    Messages:
    328
    Gender:
    Male
    First Name:
    Andrew
    Mission Viejo, CA
    Vehicle:
    1991 White 4Runner 3.0 L
    Rebuilt Engine MLS and ARP on the heads, DT Header, 2-1/2" CARB compliant Flow-Master CAT with 2.0" Bosal CAT back Dayco 1-1/4" Spacers, SkyJacker M-Series Monotube Shocks, Ball Joint Spacers. 95-9006 K&N Air Cleaner, G-Plus Alum Radiator, ZIrgo 16" Fan, Derale Temp switch/relay
    The stock 22R non EFI OEM manifold actually flows better than the Offy. Back in the Day Downey-Off-Road did a big write up on this in there catalog. However, the Offy orients the Weber without an adapter. I ran that kit on a brand new bored and stroked LC-Eng motor for about a month and being as I had a bit more displacement it seemed to work well enough but one of the valve guides galled and I had to send the motor back to LC for warranty repair and later realized the weber had some casting flash that broke away and lodged into the jetting that fed the outer throat of the carb which made #1 and #4 run lean based in how the offy works. I am pretty sure that is what caused the valve guide to gall and seize up because of the lean condition.

    A better choice if you really want to up the performance is to put dual side draft Mikuni's or Webers on the 22R. It will make a clean 120 HP and maybe a bit more with some head work and a CAM and header. been here and done that too and it was the best thing I ever did with my 1982 long bed 4X4 running 32's and 4.88:1 R&P's!...
     
    atgparker, Oct 1, 2020
    #4
    Doglover2003 and SlvrSlug like this.
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