I have been trolling The Samba Bay Bus forum with hopes of needing some info once I pull the trigger on the Bus purchase....
But I ran into a CHT post. I gave them Jakes INFO post from here. Those guys seem to think that 425 is ok for a bus.
My thought was that Jake was talking about a type 4 engine, regardless of what it was pushing.
Last post I saw the guy basically is accepting 425 and knowing the engine will not last.
Yes the bus is heavier, but shouldn't the goal be to keep temps down?
My L-Jet 914 cruises on the interstate (70 and 3400rpm) at VDO gauge temp of 340-to 350 with 12.5 - 12.9 A/F. I have gotten 29 mpg. So I think I have this one dialed in. I want my future bus to be dialed in too.