On Tue, 27 Nov 2007 09:45:46 +0700, Bruce in Bangkok
wrote:

True, but this raises the question of whether you are actually
developing " X" amount of horsepower at "Y" RPM. I assumed from a
previous post that you were calculating H.P. from fuel consumption
figures which is really just a ballpark calculation.


Without some way of measuring torque, that is the best you can do. 17
hp per gph is a pretty good approximation.

Given that the 71 series are no longer made what are rebuilt injector
prices like? Or have they gone out of sight because a lot of people
would rather have the old all mechanical engines then the new
electronic models?

Newly manufactured parts are available from various sources including
DD dealers. I've heard reports of some difficulty getting new
cylinder kits but the DD service center that I used in North Carolina
had no problem.