Engine Speed

[Pete Masterson]

The Series 60 has a maximum RPM (under power) of 2100. It is OK to go
to 2400 when decelerating. It pulls very well from 1400-1800 RPM. The
manual suggests downshifting if RPM falls below 1250-1300. Maximum HP
is available at 1800 (and remains constant to 2100).(It's a little
weird for me to work with such low RPMs, having much experience with
high-reving sports cars (in my youth) where a redline of 6400 was not
uncommon.)

The Allison 6 speed computer-controlled automatic transmission used
in the WL does a good job sticking to these values. It's rare to need
to revert to a manual mode --- only when climbing or descending from
a serious grade where you want to hold a particular gear.

Pete Masterson
aeonix1@...
'95 Bluebird Wanderlodge WBDA 42'
El Sobrante, CA




On Sep 16, 2006, at 8:31 AM, Jeff Miller wrote:

> <snip>
>
> The 92-series DD also has a higher power curve which punishes those
> who let it fall off the ball in a climb, the S-60 pulls very well at
> low RPM where it is designed to run.
>
> - Jeff Miller
> in Holland, MI



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