Detroit 60 series turbo question

how's the DDEC set-up? If I remember correctly, there's a setting in there for passing. Pretty much used by fleets to control mileage.

 

Has it always been that way?

 

A big thanks to rebel 127 for taking the time to shsre knowlege with me today.

 

can a new turbo cause exhaust back pressure noise?

 

Whats the noise sound like? Is it the same model of turbo you took off?

 

I had a new turbo put on. old 1 original was a garrett. new one was b/w but was a direct replacement. checked the numbers. it is for my type engine & h.p. not sure if the sound is due to turbo or just a coincidence. but since new turbo, when I am in a pull, loaded. I hear a sound, that sounds like back pressure. there is no affect on performance or in any negative way at all. just the sound. this is only when I hit a slight grade or any grade loaded. when empty, does not make the sound. I can hear when driving sounds like it is coming from under the truck. at first I thought I had a hole somewhere in exhaust sys. can't find anything wrong. everything else, idle, m.p.g. temp, nothing out of the ordinary. no codes. the sound does not seem to have any affect, but I want to know what is causing it. just weird.

 

Sounds like the vanes might be set differently on this replacement.

 

it sounds like if your in a pick up truck with duel exhaust doing about 40 m.p.h. & then go from drive & throw it in low. ya hear the poppin & back pressure until vehicle get into the low speed range.