Engine Compression Tests - Project Pure Poncho

With every passing day the Mule provides opportunities beyond our original expectations.With every passing day the Mule provides opportunities beyond our original expectations. Since the 467ci engine belongs to HPP editor Tom DeMauro, it is at our beck and call. This affords HPP the ability to do things, such as our octane test, that would not be possible with a third party engine. (Try telling the owner of a nearly 500hp Poncho that you want to dyno it on regular grade gasoline and see how far you get!) So far we have tested three different grades of fuel, a similar amount of oil viscosities, and a mix of rocker arm ratios beyond the original dyno testing and tuning.
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