max egts and boost - Diesel Forum

ChassisCrewCab · 03-13-2005, 05:32 PM

What are my max egts that I dont want to go over 1300*

What is the safe limit on the max boost?

dbennett48 · 03-13-2005, 07:06 PM

I use 1200* for my upper limit. 1300* is too high. I am stock. There is no boost limit. Your computer limits the boost by changing the vanes in the turbocharger to keep it in line. 30Lbs is the most I have seen. 28-29 lbs is normal.

Dave

Nick_Kowal · 03-14-2005, 06:13 PM

Most say that if you hit 1250 on the EGT let off the throttle to let them cool and I have heard that the garret turbo on the psd is good up to 45-50 psi boost but your computer will cut you off at 28-30 psi stock. chiped you will see more 35+. [img]/ubbthreads/images/graemlins/smokin.gif[/img]

P.S. The 1250 max EGT is pre turbo mounted.

WhonosWho · 03-14-2005, 11:00 PM

I have seen 1300 stock and 1500 with tuner only brief seconds my gauge reads faster than my old analog gauge I am using Bully Dog digital Outlook and it record highest. I think with old analog I would never had seen over 1200 but this digital gauge reads so fast....Tim

YODA · 03-15-2005, 10:14 AM

Just a quick reply here. Havent been around a while (new promotion / moving)

Anyway to put you mind at ease. Stock my 04 could hit 1425 towing. Dealer Doc said normal and dont worry AS LONG AS PROPER COOL DOWN IS FOLLOWED.

Now to that he said dont just watch the pyro. Give it a gould couple minutes after the pyro hits 400 (normal on my truck at idel) if you have ben running that hard.

These motors will take the heat for short peroids of time (less than 30 minutes)

Now having said that I put a DPPI [img]/ubbthreads/images/graemlins/biggrin.gif[/img] dual cat back exhaust on mine which cut the temp by about 100 to 200.

My limit sustained is 1250 to 1300 pulling grades etc.

Best advice is talk to your Doc and se what he says.

What I have found is the 6.0 runs about 100 to 150 hoter than my old 7.3 when towing.