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Europa-List: Re: Rotax 914 Dyno Test

Subject: Europa-List: Re: Rotax 914 Dyno Test
From: rparigoris <rparigor@hotmail.com>
Date: Mon, 3 Jul 2023 10:21:09

Hi Group
What I find interesting on the 914 is with the throttle about 1/2" or less, the
airbox pressure is greater than 44"! When setting up 914 with TCU software, I
found that 1/2" or less the wastegate is closed. Then remains opened from about
1" to 3" (this is with the engine not running:
https://www.cps-parts.com/cps/pdf/d05240.pdf
See page 7-10 for airbox pressure graph.

Boy, if the airbox is going to blow off, who would have thunk that it just may
have a better chance of doing so near idle with over 44" and probably more 
vibration
than at war emergency power (115% power, 100% throttle) which only has
a tad bit more than 40" or at 100% continuous power that has only a tad bit more
than 36".

See page 5-4 for MP from 55% to 115% power.

Ron P.


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=511029#511029



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