lukecline

One of two things is happening here. 1- your boost gauge is way off and your uneducated enough to know so. 2- your just FOS. A bone stock 6oh wont peg a 40 psi gauge. they run high 20's low 30's in stock form.

kipo

one half drunken night i turned'r up to 5x5, hit 52 but lost the gasket . what a pain that turned out to be, hope i never have to do it again.

thanks, doug and don for the advice and help with the turbo and injectors.

6Lpowerstroke

about hthe 6.0 not being able to peg 40 that is pure bs cuz ive witnessed it numerous times. pullinga sled with programmer to max and a horse trailer or a hole shot. and the one that hit over 40 was in the winter and had a programmer on it and wasnt for that long so if oyu would read and not jump to conclusions you might understand it was a 04 6.0 not the new ones.but you must be the expert since you own a cummins. thinkgs can happen, not everyrthing is normal. im not saying im 100% acurrate, but it scared the **** out of me when it happened. so whatever you say has to be right so just drop the whole **** thing. im not on here to frickin argue, i posted what i saw and you can not believe it if you want im not sayin PS is better than Cummins both are very reliable, hence they are the top selling trucks on the market. and i never said the truck was bare stock so get over it already.

RonA

over 65 a couple of times, but not very often.

dodgeman01

Peged my boost guage at 60psi with my H2E with a 22 CM housing at 110 MPH
DM01

ratsun

I voted 60-70 since I peged my 60# gauge a few times but I dont really know the max

displacedtexan

Max I can hit is 28... Planning on pushing my plate fowaed a little bit, hoping to get about 33 out of it.

jermey1980

i was running 76lbs with a vp44 and twins but now i have an external wastegate and a fresh motor i hit 60 with out trying a good friend hits over 100 John p knows who iam talking about and we have everything the same thing done ( he doesn't have wastgate though)

Idaho CTD

80psi is the most I've seen