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Sportster Motorcycle Engine Conversions Advice, questions, and tips for 1200, 1250, 1340, 1450 etc... for Sportster and Buell motorcycle engine conversions

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Old 9th June 2020
SportyHD SportyHD is online now
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So I was originally running the d&d bobcat (performance muffler) and it made 85hp and 86tq. I then added bassani pro streets and it made 88.95hp and 88.49tq. They’re loud, but I love them. Both of these dyno sheets are measured using SAE, it made a few numbers higher on hp and tq when we looked at STD numbers. I’m kind of inspired to build a turbo kit for it now, but lots of research to do...
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