Hi Jim
First of all converting your average highway mileage to imperial measure
you average 22.8 mpg at highway speed. At 70 to 73 mph I average 24.8
mpg but on straight city driving I average 14.8 to 15.5 mpg. The pronounced
drop in efficiency is due to two items, foremost I have a DWR road/rally
cam and secondly the timing may be a wee bit off because of a series of issues
Chris Dimmock addressed on distributors. Before I rebuilt the engine and
changed many of the components on an 1900 mile trip primarily at highway
speeds I averaged 26.2 mpg - standard BJ8 cam while city driving albeit
limited was 16.5 to 16.9 mpg
Kind regards
Ed
Saskatoon, Saskatchewan
www.vintage-sportscar-touring.ca
'65 BJ8 '89 Morgan 4/4
Jwhlyadv@aol.com wrote:
> I've found about 19 mpg for a BJ8 is about average. That is for sustained
> highway driving, sometimes exceeding the posted highway speed limit a bit.
>
> My unscientific survey is based on taking groups of BJ8's to more than a few
> Conclaves with several gas stops along the way. I always look around at the
> gas pumps to see how everyone else is doing. It's not a quest for ultimate
>gas
> mileage but more a chance to see how your cars tune up compares with others.
>
> Thanks,
>
> Jim Werner
> Louisville, KY
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