BMW R80RT power diagram complete original

BMW R80RT power diagram

The graph represents the power and torque of a fully stock BMW R80. In this example it is a 1988 R80RT with original exhaust and an original air filter box. The general condition of the BMW Boxer is good, the mileage is a credible 31,200 km.
All original R80 models measured by us have a measured clutch output of approx. 45 hp and all R100 models have a measured output of approx. 53 hp. If you now add the 2% up to the crankshaft, BMW is close to its factory specifications.

As a rule, it is normal for the performance measured on our dyno to be lower than the manufacturer's specification. This is also the case with today's vehicles and was no different almost 30 years ago when we bought our first dynamometer. We have always used the same manufacturer and it may be that other dynos show higher values. For us, the pure numerical value is not decisive, it is more about the comparison of the measurements with each other. Only in this way can the effectiveness of our measures be reliably recognised and proven.