Normal Operating Range for EGT and Boost [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Normal Operating Range for EGT and Boost


hbb8044
07-03-2007, 04:38 PM
I have a 2007 completely stock LBZ. Could someone tell me what is the safe operating range is for EGT? I would also like to know what is the boost range for a completely stock LBZ. Also would like to know the range for boost for a LBZ with tuner.

Thanks.

Jasondt2001
07-03-2007, 04:43 PM
Well Im stock, except for the BD Manifold.
As for boost, highest i've EVER seen is 24-25 psi.
As for EGT (I have not towed nor hit a grade empty yet) hammered it FLIES up to about 1050-1100 EGT and then hits a wall and doesnt move.
The only way i can get it that high is on a freeway run type thing from 0 - 80 MPH.
The boost doesnt build until it shift to second, it will climb but it jumps when it shifts it seems on mine.
After the install I thought something was wrong with the boost gauge because i revved it and it wouldnt really move all that much, thank goodness instead of pulling it apart like i was going too I went ahead and drove it around the block.