I'm wondering what everyones boost is (12V, 24V, CR, 6.7, just say what year and if it changed with a different turbo) for everyone running 65 and 70. Just to see how much boost mine runs with my lack of aerodynamics. (7-9psi 65, 9-11psi 70). And maybe how much you run towing.

 

7-10 cruisin
32 WOT

 

Used to have it set to 45 WOT with HX35, but I turned it down with my boost controller to about 34. Crusing from about 60-75mph it's about 5-15psi, I think.

 

Crusing is 5-10 depending on road conditions. WOT i have seen 44 but mostly 40. Going to install a boost elbo to hold it around 35-38.

 

'06 with twins at 65-70 averages 10-20.
WOT is 64.

 

OK, so the real question is, why does the Cummins run that high of boost, while Powerstrokes and Duramaxs are running 0-5psi? (I've asked this on their sites too)

 

I see about 5-10 @ 65, depending on conditions. As for the competition, the Ford, at least, has a variable geometry turbo...the ECM can bypass the flow of exhaust around the turbine when the benefits of boost aren't needed. When I had my 18cm housing on, I'd see 0-3psi at 65.

 

5-10 psi on normal cruise

at 70, its about 10 psi

WOT, it depends 50-60 psi, depends on hill, if i floor it in fifth, and how much boost i had in third and fourth gears... ON the dyno i saw 60 and have a few times on the expressway, but taking hills at wot, i see 50-55

Rick

 

5~15 cruising, 47 at WOT. - sps62

 

42 WOT, cruising is anything from 0-8

 

0- 5 depending on road grade at 60- 70. With wieght on when i rarely have it its 8-15 at 60- 70. Wot 45lbs at 1250 degrees.

 

cruising under 10, WOT with everything on, 50+psi

 

When i stand on the throttle mine reads 14psi with the waste gate plugged off, when im at highway speeds about 5psi.

 

14 Doesnt sound right. Is that a typo or what?

 

Only 14psi??? Something ain't right in China, or Grande Prairie anyway. (Had a girl on my old rodeo team from Grande Prairie.