Question from Osh
I asked this question of B&C at Oshkosh 2019. They said the smaller one fits no problem. The larger one will fit, but it seems to cover the mechanical tach drive on the 0320/360 Lycomings. But for a Garmin panel, from what i understand, the mech tach drive is not used, rather the G3X gets the tach signal from the mag.
There is a post a few years ago about this ( using the vac paid as the prime alternator).
One thing to note is I think the vac drive RPM ratio is 1.3:1, so the alt rpm is lower than a standard belt drive alt. This will be OK for my all-Garmin system with LED lights, but for others the alt may not put out enough juice.
This is my plan for my 9A. I have no knowledge about anything RV-6, so i am only speaking for the Lycoming compatibility. YMMV. JMHO.
WARNING! Information presented in this post is my opinion. All users of info have sole responsibility for determining accuracy or suitability for their use.
Dues paid 2020, worth every penny
Tail 98% done
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Last edited by PilotjohnS : 03-11-2020 at 11:13 PM.