My dyno system does not use a clutch at this time. The clutch bell is 'locked' to the crank shaft making it direct drive. The reason for this is I found an inherrent amount of cluch slip throughout the entire rev range with every clutch I tried, causing skewed and unrepetable results. An concidering the fact that dyno's are all about repetability, we couldn't have that.
In order to use a clutch and to figure clutch slip, We would have to implement a much smaller flywheel, causing much shorter sampling times. This does not give results accurate enough for my taste.
TLR Design Engineer
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