Just catching up with this after getting home from vacation.
Yes, the RX-8 / 13BREW sensor is problematic with the earlier EC2, especially on the Renesis trigger wheel which has an asymmetrical trigger pattern. First step is to parallel it with a 1K resistor. There are other additional fixes I've used as well. The next level is to put back to back 2.4V zener diodes (in series) across the CAS. I do this on all EC2s returned for changing to BREW and Renesis engine use.
Tracy
Sent from my iPad
Bobby,
I don't have a CAS that came from a 13B-REW. However a parts search comes up with the same part number for the 13B-REW and Renesis CAS.
Steve
From: Rotary motors in aircraft [flyrotary@lancaironline.net] on behalf of Bobby J. Hughes [bhughes@qnsi.net]
Sent: Thursday, November 08, 2012 11:20 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Renesis CAS & EC-2 upgrade?
Steve,
The RX8 circuit uses a resistor across and in line with the CAS leads. I remember Tracy saying the Renesis CAS was just different enough to cause problems
with his older EC2’s. It would be interesting to test with the pre-renesis 13-REW CAS.
Bobby
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