loss of boost after installing exhaust?

[cdbright]

i use to max my boost gauge out at 35 and needle, after installing 5"turbo back i hardly stay at 30 , any ideas

I would think if the exhaust can escape fast down the pipe it would spin up the turbo faster

i only added the info to delete the DPF, i don't think i changed anything that would affect the turbo presure unless it is coded for the EGR stuff?

 

[NWTDIESEL]

Put a muffler in it. It might help.

 

[cdbright]

i forgot to say that, it came with the ,monster muffler, it drops it down to about 3" inside, and i did install that at the same time.

 

[maxdout1]

less drive pressure = more power

 

[NWTDIESEL]

i forgot to say that, it came with the ,monster muffler, it drops it down to about 3" inside, and i did install that at the same time.

Oh, your sig says straight piped

 

[cdbright]

that was the plan when it was layed out on the living room floor, but decided to go with it so i can sneak around town with out pissen of the fuz, so do you think it would have been worse straight piped?

 

[dbh86]

There is something else going on. As long as the exhaust you put on is more free flowing than what was on there previously, you should have quicker spool and be able to run higher boost.

 

[cdbright]

THAT IS WHAT I THOUGHT