I remember our Canadian cousin had something to say about diesels in this
regard too. IIRC overgearing them so they run slower is a bad idea.

Mike

On 12/22/08 12:03 PM, "mtbiker62@comcast.net" <mtbiker62@comcast.net> wrote:

> "It gives about 15% less rpm per speed to go from a 195-14 to a 225/75-16.
> Isn't that tough for the 2.1 to pull?"
>
> Yes, it is. This topic has a huge resource of knowledge and actual experience
> reported on the subaruvanagon list because we that have made that engine
> switch, keep trying to figure out what percentage increase in tire size (read:
> gearing change) will still allow benefits of increased engine conversion
> power. 7% increase is the max that has been "decided" by substituting the 2.2
> Subie for the Wasserleaker.
>
> bob