tuning

  1. N

    Pre-install XFI check list and general rules

    Hi erveryone, I have this up on the FB XFI group but I have decided to post it also as it can pertain to all types of ECU's on the market. I feel its important to all the buick members, so here it is. The motor must be in reasonable condition, no weak cyls. The battery must not be weak or...
  2. gn87man

    Tuning Help

    I need some tuning help please. Any suggestions would be much appreciated. I think I am getting false knock. But I want to see what you guys think. The reason I think it is false knock is because I can be cruising at 40 mph and put the car in neutral and rev the engine to about 3500 - 4000...
  3. J

    Off Idle Problems

    I am having a problem off idle with my 87. It has no power and pops and backfires as soon as I put the motor under load. Backstory: I bought the car, off of a well respected individual. When I got it, the motor would break up when it approached 20lbs of boost. I figured it was blowing the flame...
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