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OS 65AX & exhaust length

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Old 11-23-2011, 05:51 PM
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lumpy649
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Default OS 65AX & exhaust length



I have an 65AX that I have installed in a Hangar 9 Denight Special. For an exhaust I have a Bisson Pitts muffler. My question is does exhaust tube length greatly affect engine perfomance? I want to cut the exhaust tubes shorter and then add on custom length tubes that would be approximately 6 inches longer and swept back and down thru the rear of the cowl. Will this affect my warranty on a new engine and will itbe a detriment toperfomance?
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Old 11-28-2011, 07:02 AM
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Default RE: OS 65AX & exhaust length

You'll be fine. Just adjust the needles as the engine requires. The exhaust system is not critical when it's not a tuned system as long as it allows plenty of flow-through.
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Old 11-28-2011, 03:31 PM
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Default RE: OS 65AX & exhaust length

Thanks Bax, much appreciated.....again!!!!
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