I've recently purchased some hardware that measures vehicle horsepower
and torque.
It's called the 'Road Dyno' and ist basically hooks up to a plug wire
and times the pulses and as you accerlate.  THe info is then imported
into a computer and a dyno graph is displayed.  The only problem is I
don't know the gear ratio's.
From the archives I've found the final drive ratio to be 4.86 but I
can't find any manual trany info.
It's an '87 vanagon with the 4spd manual.  Any help would be greatly
appreciated.
Also from what I gather the vehicle weight is 3450 lbs emtpy? correct?

Thanks
Martin Musial