+ Reply to Thread
Page 1 of 2 1 2 LastLast
Results 1 to 10 of 11

Thread: Injectors

  1. #1
    Join Date
    Jan 2008
    Posts
    1,550

    Injectors

    Ok so I have just bolt ons really on my 04, mods in sig. Me and my buddy were logging the other day and my idc is peaking at 80% under wot. Do I have enough injector to support a cam heads and about 150 shot? Prolly not, so how big of injectors do I need?

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  2. #2
    Join Date
    Jan 2008
    Posts
    1,550
    Anybody?

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  3. #3
    Join Date
    May 2009
    Location
    Plainfield, IL
    Posts
    2,036
    for full bolt ons, 42s are usually plenty. Think they will support around 5psi. For a shot, you might just want to go with 60's to be on safe side.
    blown transmissions are about as useful as 97% of the guys on this forum

  4. #4
    Join Date
    Jan 2008
    Posts
    1,550
    so would allen's 48 pounders do?

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  5. #5
    Join Date
    Apr 2009
    Location
    42141
    Posts
    714
    might as well go 60's
    Blessed be the Lord my strength which teacheth my hands to war, and my fingers to fight:
    Psalms 144:1

    Si vis pacem, para bellum

  6. #6
    Join Date
    Jan 2008
    Posts
    1,550
    K cool

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  7. #7
    Join Date
    May 2008
    Location
    Crowder, OK
    Posts
    8,005
    I spray 150 on my stock flex fuel injectors... with full bolt ons my IDC is around 65%.

    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


  8. #8
    Join Date
    Jan 2008
    Posts
    1,550
    yea but i plan on putting a decent sized cam, heads, and a proflow mani too, so i dont think those stock flex fualies are going to be enough. Arent they like 30 lbs?

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  9. #9
    Join Date
    Dec 2006
    Posts
    4,033
    anything above 50 should be fine, but 60s are insurance for future mods, plus a aftermarket fuel pump
    Simple: 408 on steroids!
    single digits coming soon!

  10. #10
    Join Date
    Jan 2008
    Posts
    1,550
    k sounds good

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

+ Reply to Thread

Posting Permissions

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