Results 1 to 7 of 7

Thread: dollareater

  1. #1
    Registered User
    Name: Sean


    Join Date
    Oct 2013
    Location
    southern il
    Posts
    9
    Like
    0
    Liked 0 Times in 0 Posts

    dollareater

    Hi im a newbie from southern il with questions.
    Yes I have read and searched the faqs
    I have a 03 hd with pulley swap truck runs good if you roll into the throttle but runs badly when floored, added a diablo and it still runs poorly, today turned off overdrive and truck runs good any thoughts

  2. #2
    Worlds Shiniest HD F-150!
    Name: ]\/[ike

    Merlin's Avatar
    Join Date
    Jul 2009
    Location
    Sunny South Florida
    Posts
    4,288
    Like
    45
    Liked 165 Times in 135 Posts
    Hi and Welcome to NHTOC!



    Were glad you're here and part of our community.

    How often do you floor it with the overdrive on?
    Tell us about you. What motivated you to get a HD?
    Tell us a little about the truck, some history, mods, miles etc.



    How 'bout some pics of the truck?

    ... ...

  3. #3
    Registered User
    Name: Sean


    Join Date
    Oct 2013
    Location
    southern il
    Posts
    9
    Like
    0
    Liked 0 Times in 0 Posts
    Just bought the truck from someone I know 108, 000 miles all mods were done by owner before him here is what I was told and have observed myself lower pulley measures about 8 inches upper pulley measures about 2.7/8 inch k&n filter boost fuel and air gauges trans shift kit and aftermarket exhaust.
    Pictures later when its clean lol.
    Dont floor the truck that often just trying to figure out whats wrong with it
    Its making 12 psi at wot and f and a gauge shows leaaan at wot
    I am a farmer who likes fast toys, but mostly only worked on diesels I know nothing about superchargers any help would be appreciated.

  4. #4
    Word
    Name: Kevin

    Blind's Avatar
    Join Date
    Oct 2009
    Location
    Hella NorCal
    Posts
    2,370
    Like
    127
    Liked 63 Times in 58 Posts
    your truck needs a good dyno tune or you will hurt the engine, what you are feeling at full throttle is detonation and it will put a hole in the side of the engine unless you get the tune setup correctly.

    It sounds like you have a narrowband air/fuel gauge and it indicating LEAN is very bad at full throttle, lean is over 14.7:1 and you want it to be under 12:1 at full throttle and in boost to have a happy running truck.

  5. #5
    Registered User
    Name: Sean


    Join Date
    Oct 2013
    Location
    southern il
    Posts
    9
    Like
    0
    Liked 0 Times in 0 Posts
    Thanks for the info I have a diablo sport intune that I just started tinkering with is it sufficiant or do I still need a tune

  6. #6
    Word
    Name: Kevin

    Blind's Avatar
    Join Date
    Oct 2009
    Location
    Hella NorCal
    Posts
    2,370
    Like
    127
    Liked 63 Times in 58 Posts
    Without a wideband o2 gauge you will likely only make things worse. Talk to a professional that tunes lightnings / cobras / Shelby's.
    2002 DSG HD #09617 NHTOC Truck of the month November 2012
    Ported eaton/plenum/tb, 6lb lower, SCT BA-2600 MAF, OBX longtubes, JLP intake, FTVB, L-spec bilsteins, Hotchkis TVS, 22" replicas. Tuned by Ray McClelland of FTK

  7. #7
    Sport90's #1
    Name: Matthew

    oki916's Avatar
    Join Date
    Nov 2007
    Location
    Tallahassee, Florida
    Posts
    4,999
    Like
    21
    Liked 23 Times in 14 Posts
    Def stay out of that throttle till you get it properly tuned. The canned tunes that come on those programmers aren't good to use unless you have had a professional tuner specifically tune your truck and then load up the tunes on the programmer for you.

    I would be very careful even when just accelerating knowing that you have detonation. More then likely going to want to check your spark plugs also since it has been detonating.

Posting Permissions

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