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Thread: GM 87mm DBW Throttle Body

  1. #21
    Join Date
    May 2008
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    Crowder, OK
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    8,005
    Quote Originally Posted by beertestr View Post
    No.. they are 36#/hour..
    Not 24.

    1969 Chevy RCLB C10 350/TH400 SOLD
    2007 Chevy RCSB 4.8 4x4 LS SOLD
    2008 Chevy RCSB 5.3 4x4 LT SOLD
    2010 Chevy CCSB 6.2 4x4 LT SOLD
    2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
    2013 FORD CCSB F350 6.7 Powerstroke 4x4


  2. #22
    Join Date
    Jan 2009
    Location
    Fort Worth, TX
    Posts
    143
    If they were out of a flex fuel truck... yes then they are suppose to be 36# injectors, but the actually put out more like close to 40# but, the non-flex fuel trucks have 24# injectors. the only other motor that had different injectors was the 8.1L. and just because you have returnless style fuel system does not mean that your flex fuel either... that was just something they started in the 04's
    Last edited by $nake Charmer; 09-10-2009 at 09:10 AM. Reason: spelling, lol
    05 Silverado RCSB...
    LQ9, TVS 1900, 4L80e, & EFI live.


    07 Silverado VortecMAX CCSB LTZ Z-71...
    Stock... so far

    08 Cadillac Escalade 6.2 / 6.0... Wife wagon

  3. #23
    Quote Originally Posted by $nake Charmer View Post
    If they were out of a flex fuel truck... yes then they are suppose to be 36# injectors, but the actually put out more like close to 40# but, the non-flex fuel trucks have 24# injectors. the only other motor that had different injectors was the 8.1L. and just because you have returnless style fuel system does not mean that your flex fuel either... that was just something they started in the 04's
    I checked for Zeake, the PN he gave me are for the E85 injectors. Confirmed the rated flow rate with a contact at Delphi..

    And there were other injectors out there with that same intake, TBSS and SSR's with the LS2 had something between 24 and 36, but I do not have my cheat sheet in front of me to confirm the actual flow rating.

    That intake started out on the 2005 V8 Rainiers/LWB Trailblazers and Envoy's, and is on all the GenIV cathedral port motors (4.8 and 5.3L, some 6.0's like the LS2 and hybrid trucks) now.

    All "NNBS" trucks except the L92, LY6 (iron 6.0), and L76 (Aluminum 6.0) have this intake, but there are E85 and non-E85 injectors in the fuel rails, so ya gotta know the PN's..

    Rectangle port head motors have a similar looking one, but it's a bit bigger, though with the same 87 DBW TB.
    Mike
    http://kds-performance.com
    94 Silverado Z71 SCLB 4.8L LR4 Daily Driver
    93 GMC Sierra 2WD LS V8 Swap dun, run, rusted, stripped & junked
    1979 Caprice Coupe - LS Swapped - 11.76@115.8

  4. #24
    Throttle body is still available. Some one should buy it and have it ported then sell the one they already have.
    99RCSB Broke because I wasted thousands and thousands of dollars on my truck.

  5. #25
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    You're right. Send me you PP address and I'll help you out while you're helping me out.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

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