2010 01 16 Dyno Run

Here are the results for the dyno run on the 16th Jan 2010.

As we went back to the same dyno we used a few years back, we had an original standard Vespa 200cc dyno result to compare to (the little squiggle at the bottom of the chart). The results are from a true rear wheel power dyno (not a machine that measures rear wheel power and adjusts that value up to guess what the crank power is).

The results show that we need to have a wide tyre to lower gearing in addition to the 24/63 primary drive. Our peak power is 25.5 hp  at 7500 rpm which is 142 km/hr with our current gearing. With a wide tyre we'd bump this up to 149 km/hr. At ~8,000 rpm (160 km/hr with a wide tyre) we still have around 22 hp. The should be enough power but it would be nice to shift to peak power up 500 rpm just to be sure.

Standard Vespa PX vs Our Vespa KDX Conversion

20100116_vespa_kdx_vs_standard_annotated_sml.jpg

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Paul McIntosh,
Mar 24, 2015, 11:41 PM
ċ
Paul McIntosh,
Mar 24, 2015, 11:41 PM
ċ
Paul McIntosh,
Mar 24, 2015, 11:41 PM
ċ
Paul McIntosh,
Mar 24, 2015, 11:42 PM
ċ
Paul McIntosh,
Mar 24, 2015, 11:41 PM
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