P400 Turbo Diesel 4x4 Dually

[JetBoater]

A picture of me and someone else... you can probably figure out who I am.

[d.h.]

Nice Truck! I to just went through new engine blues.I bought a peninsular 18:1.They have good reputation.Just had reflashed computer installed yesterday. Hooked on to my fifth wheel today for maiden pull this weekend.Good luck!!!

[JetBoater]

Have a great long weekend d.h.!
I regret that I did not do the 18:1 which was a standing option I had turned down. It will definately add life to your power plant!
Cheers!

[rustyk]

I also got the Penisnsular 18:1, hi-pop injectors and a new IP (and the Phazer gear drive). Fuel economy is up from 9.25 mpg to around 11 mpg, and there's POWER there under the bed (diesel pusher motorhome ). And that's not "truck bed", it's a queen-sized bed .

[a5150nut]

and there's POWER there under the bed (diesel pusher motorhome ). And that's not "truck bed", it's a queen-sized bed .

But you have to make your bed, I can just hose mine out!

[JetBoater]

I just asked my supplier from WW Williams (Rod Townsend), what the compression ratio was in my P400. He advised it is 20.2:1

I also asked for the recommended maximum boost... he replied 28 psi at 2000 rpm provides max torque.

Is the 28 psi at sea level?

I am running 12 lbs of boost MAX at full pedal. Do I dare run a larger turbo and increase to these levels?

I am running the strongest commercial 6.5 available.... all comments welcomed.

Note: I will be adding an intercooler in next month or so.... and will dial in the max boost at that time. It should be broken in by then.

[DmaxMaverick]

28 PSI is a bit unbelievable, especially if it is a 20.2:1 engine. And, not knowing what turbo is in service, is well out of the efficiency range of most of them.

28 PSIA is 13.3 PSIG at sea level. Perhaps that's what he meant?