Good job on using the GPS to check speed.  It is a simple and accurate way.  The easiest way to
increase speed for a given RPM might be to go with larger diameter tires.  It would probably
cost lest than a tranny swap as well.

Bill

----- Original Message -----
From: "Andrew Fox" <afox@CNR.COLOSTATE.EDU>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, July 01, 2002 10:15 AM
Subject: AT speeds/rpm's

>
> using a gps i determined that my 2.1L runs at about 66 mph at 4,000 RPM.
> I would like to be able to go faster since the speed limits on the
> interstates near me are 75 mph?  what speed does the Manual 4 speed 2.1L
> do at 4,000 rpm?  Anyone ever heard of switching from AT to manual?  Can
> bigger gears be installed in the AT to give a higher ground speed?
>
> Thanks,
> Andrew Fox
> 86 Westy 2.1L
>