Results 1 to 2 of 2

Thread: Tuning issue some suggestions please!!!

  1. #1
    Garrett booster
    Join Date
    Sep 2010
    Location
    chicago
    Posts
    125

    Tuning issue some suggestions please!!!

    Hi I have a 86 glh 2.2 stock fresh bottom. Mild port on the head stock cam/valves/springs stock two piece not ported nice good flowing intercooler,MP csx stage 2 lm t3/t4 hybrid turbo +40s... Runs great cruising around I'm pulling just over 20hg vac. Wideband reads 14.5-15.5 a/f full nut I have it set at 14 psi for now I'm running 11-12a/f my prob is between 1/2-3/4 throttle it leans out very bad if I start pushing boost it will get to 16 on the wideband and kinda sputter but if I go to the floor it richens up immediately. And seems to get worse at full operating temp. Won't do it cold. I have my fuel pressure dropped down to around 38ish to compensate for the +40s. If I raise the pressure and richen it up for the 1/2-3/4 throttle issue I'm pegged at 10 for a/f. And the turbo lags pretty bad. I've pinned out map,tps,cts readings are good no dead spots or anything with my trusty fluke. any ideas I was hoping once I turned the boost up il might lean things out full nut. But I want the motor to break in and the new turbo as well before I start pushing the boost and running a bleed.

  2. #2

    Re: Tuning issue some suggestions please!!!

    imo: swap to a better calibration (Turbos Unleashed or FWD Perf.) and swap to +20's. +40's might be too much for your setup. set your static pressure to 50-55.

Similar Threads

  1. Tuning
    By me235 in forum Electrical & Fuel System
    Replies: 17
    Last Post: 12-26-2010, 09:59 PM
  2. Suggestions?
    By CaptMoe in forum 16v Factory Engines
    Replies: 17
    Last Post: 07-16-2010, 09:09 AM
  3. I need some serious tuning help...
    By SpoolinGLH in forum Maintenance & General Tech
    Replies: 21
    Last Post: 05-28-2008, 11:53 PM
  4. Need suggestions...
    By Bubba in forum Electrical & Fuel System
    Replies: 0
    Last Post: 05-19-2008, 07:44 AM
  5. need suggestions...
    By Purpleskunk in forum Suspension, Brakes, Wheels, Traction
    Replies: 7
    Last Post: 08-29-2006, 06:13 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
  •