Exhaust Pipe Length

by geoff klestadt in 912iS Technical Questions 4 years ago

I have the standard Rotax supplied exhaust system on my 912 iS Sport on a Zenith CH750.

I've noticed one or two installations where the exhaust pipe has been shortened a few inches from its "as supplied" length of about 9 inches (250mm) I guess this reduces drag a little and makes engine cowl removal a little easier, but is there an effect on performance?

What are the pro's and con's of shortening it?

Re: Exhaust Pipe Length

by Roger Lee » 4 years ago

Roger Lee

128 5.28k 4.98k

I'd leave it alone. The drag someone complained about would be so minute it wouldn't be a factor. As far as putting the cowl on or off that isn't worth the effort.

Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell

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Exhaust Pipe Length

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