jet sound [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: jet sound


fastassdmax
12-13-2006, 11:28 PM
what is it that makes my truck sound like a jet at idle, and what tables do i mess with to control it

03LB-7dmax
12-13-2006, 11:33 PM
Variable Vane Turbo, Cant Help W/the Tables

The Neens
12-13-2006, 11:34 PM
Would you say it's more like a DC-10 or 747 sound?...J/K...It's the turbo running it's vane position tests, completely normal with the Variable Vane Turbo on LLYs...Click on "Boost Control" in your tune to make adjustments...What is it you want to change?

sweetdiesel
12-13-2006, 11:48 PM
try adjusting c0801 to c0806 by raising the values

Yellow Jacket
12-15-2006, 03:07 AM
What would happen if you raised the Turbo Vane Target Position Maximum and desired target position at idle? That should make the turbo really whistle.........Right? Just a thought, I have not tried it.

joefarmer
12-17-2006, 03:29 AM
Engine Operation.Boost Control
{B2210} Turbo Vane Target Position, EGR Off (A), modified.
{B2211} Turbo Vane Target Position, EGR On (A), modified.
{B2212} Turbo Vane Target Position, EGR Off (B), modified.
{B2213} Turbo Vane Target Position, EGR On (B), modified.
{B2214} Turbo Vane Target Position, EGR Off (C), modified.
{B2215} Turbo Vane Target Position, EGR On (C), modified.

All tables are zero from 0.0 from 0-1000rpm and 0-125mm3. I also took off ~60 from 0-35mm3 in 1200rpm and ~35 from 5-30 at 1400rpm.

brandon.

bobo
12-17-2006, 03:30 PM
I added another turbo. Jet sound is very noticeable now!