GM Truck Club
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 2 of 2
  1. #1

    Default Diablo Sport Tuner

    I have an 08 tahoe with the 5.3. I am running a spectre cold air intake and a corsa exhaust. I also got a diablo tuner and have tweaked with it a bit. I added 3 degrees of timing and pulled 3% on the fuel. Things tacks out hard on the big end between 4000-5500 RPM, seems to be lacking in the mid range. Any suggestions on what kind of tune to run?

  2. #2

    Cool Diablosport tuner

    What fuel octane did you tune for? How did you determan to take out 3% fuel? I believe with your year tuner you can adjust timing in three differnat rpm ranges. Did you tune any rpm range other than 4,000 to 7,000? When you said you took 3% fuel out, are you refering to Long Term Fuel Trims?

Similar Threads

  1. Diablo sport
    By mrchevyz71 in forum Chevy Truck Accessories
    Replies: 6
    Last: 04-12-2010, 11:11 AM
  2. Diablo Predator Tuner and 5.3L
    By KC8QVO in forum Performance & Fuel
    Replies: 7
    Last: 04-03-2010, 03:49 AM
  3. diablo sport
    By nickpatton_189 in forum Performance & Fuel
    Replies: 3
    Last: 02-15-2010, 09:37 PM
  4. Diablo tuner not working. Help!
    By jbfireemt in forum Performance & Fuel
    Replies: 2
    Last: 09-28-2009, 07:40 PM
  5. WOW!! Diablo Predator Tuner
    By Velocity1 in forum Performance & Fuel
    Replies: 12
    Last: 09-21-2009, 07:22 PM

Tags for this 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