The other thread discussing a turbo replacement on a 60 series reminded that I had wanted ask those in the know what normal boost was for a DDEC II 8v92 with a 500hp setting? My max boost I've seen with this setup was 26psi. That sounds normal to me but I wanted to ask the hive mind what they thought?
You are good average is around 22 lbs with standard setting ,Arnold has that one pumping some fuel I have one in friends bus that I have up to 31 lbs.He runs around 20 psi for fuel mileage around 6.5 mpg @ 20 psi and 4.3 @ 25psi and above
I run 40ft of 1/4" air line to a dash gauge on my 6v92 mechanical.
I've almost buried the needle past 25 psi on long pulls in 3rd gear. I try and keep it under 10-12 PSI unless I need to, I get 6 mpg pulling the toad 7-8 mpg solo doing that staying around 60-65 mph.
I'm thinking about adding a turbo blanket and header wraps. Attached is a graph showing not only total boost pressure improvements, but also reduced turbo lag.
Full study here https://repositories.lib.utexas.edu/bitstream/handle/2152/43718/BICKLE-MASTERSREPORT-2016.pdf?sequence=1&isAllowed=y
Ok. So my numbers are good. Pushing that boost too long eventually leads to hot coolant...so I don't get there often...but every once in a while...