Scott 
One correction you have to make to your numbers is the fact that you are 
figuring everything direct drive, not taking into account torque multiplication 
through the gear drive.  Torque ends up multiplied by the factor of the 
reduction.  This is how turbo prop engines make such big numbers with such 
small power plants.  They are set up  on something on the order of like 16 to 1 
or 20 to 1.  50 foot pounds of torque at the shaft is multiplied by the gear 
reduction by the percentage reduction, ie: 16 x 50 = 900 foot pounds at the 
prop.  This is like the PT6 Pratt & Whitney engine, that can be turned down 
from its 1500 hp max, to around 400-600 for other applications ( Saratoga hop 
up conversions).  So a VW making 60 hp and 85 foot pounds of torque through a 
1.6 to 1 reduction drive would make 60% more power or 136 foot pounds of torque 
at the prop.  Just food for thought. More info in Richard Finch's book on auto 
engine conversions....


Colin Rainey
brokerpilot9...@earthlink.net
EarthLink Revolves Around You.

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