Well guys this is my first diesel, I've got about 3,500 miles driven on it, my question is, how easy is it to achieve high boost. I probably mean to say, if 40 - 42 PSI is safe boost, how hard is it to get there. I have an H&S running the hot damn on the no horsepower setting. Don't want anything but a dependable truck, with a little extra MPG if possible, have the over boost set at 32 PSI and have personally never seen over 25, maybe 27.
I'm just wondering if I have a turbo problem, or a problem with the skinny pedal foot.

 

41 psi is suppose to set the code..so it is safe up to that. There are some who have run more but I would not.

I can hit 36 psi on average when pulling heavy. That is about the only time.

So lets hook 15K behind yours and give it a test up at 12% grade and see what she will do.

 

I'm game,next time your in the neighborhood, or I'm in your neighborhood we'll give it a go. Until then I guess I'll just drive it--!

 

I run the HD300 hot daily. My high boost defule setting is set at 45 psi and ive only ever hit that once. Fully deleted.

 

are bout you guys still running with DPF ON? I am straight pipe with HD300 HOT tune and had Boost Defuel set at around 38psi and found that on a hard pull EMPTY truck it was Defueling and had hit low 40's psi then I lowered the Defuel to around 35psi. I don't care to find out the hard way of what happens running too much boost. i think with the high idle it runs like 1 psi and running down the highway~60mph around 8-10psi maybe. Im planning on a snowmobile trip in a few weeks so that will be the first trailer i have pulled, it will prob be like a 4place enclosed maybe 5 sleds? from what i have read ill just keep it on the HD300 but turn it down to the no power setting, ill try to remember what it does for boost then.