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Old 02-16-2003 | 11:03 PM
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Ryans Rebel
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Default Do Bisson mufflers restrict performance?
The results are in: I have gained 500 RPM by cutting the rolled ends off of the Bisson muffler. Did not change anything between test. Same fuel, same prop, same needle settings, etc.

Stats below using a Zinger 18 x 10 on a 3W-35:

Bisson muffler w/ rolled tubes: 6500-6600 RPM
Bisson muffler w/ rolled tubes cut off: 7000-7100 RPM
Regular B&B style downdraft muffler: 6900-7000 RPM.

Ryan
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