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Thanks Mark..........Will be very interested to hear if the new coils help or stop the miss !!........
Kelly Troyer
"DYKE DELTA JD2" (Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turbo
From: Mark Steitle <msteitle@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Thu, January 6, 2011 6:49:23 PM
Subject: [FlyRotary] Re: GM Coil Comparison
Kelly,
The problem with the Renesis CAS was totally different. It would run fine up to a certain rpm and then start stumbling and missing big time. The current problem is just an occasional mis-fire of one rotor face.
Could I have some crosstalk in my wiring harness? Sure, I guess anything is possible. I definitely wouldn't rule it out at this point.
New coils came today. I hope to get them installed over the weekend, but rain is predicted for both Saturday and Sunday, so a test flight may not be possible.
Mark
On Thu, Jan 6, 2011 at 6:42 PM, Kelly Troyer <keltro@att.net> wrote:
Mark,
As I recall you changed from the Renesis wheel/sensor back to the stock
20B CAS because of rpm problems..........Did you also have the intermittant
miss with the Renesis setup ??...........Could you possibly have some cross
talk in your wiring harness ??..........
Kelly Troyer
"DYKE DELTA JD2" (Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turbo
From: Mark Steitle <msteitle@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Wed, January 5, 2011 8:32:59 AM
Subject: [FlyRotary] Re: GM Coil Comparison
OK Al, I'll tell you my reason for upgrading. My engine has always had an occasional intermittent misfire, usually on climbout but occasionally in cruise. It happens infrequently just to one compression cycle and then it clears up. Obviously, this does not instill confidence with pax, or myself either. I've tried various solutions, but the problem persists. I'm hoping the hotter spark from the 585 coils will cure this annoying problem. I'll report back after installing the new coils and test flying.
Mark S.
On Wed, Jan 5, 2011 at 12:13 AM, Al Gietzen <ALVentures@cox.net> wrote:
So I’m still waiting for an answer to the question I posed a few days back. Do we have any real evidence that the higher current spark is needed in our application; or is going to result in any better performance?
Perhaps it’s obvious to someone, but I’m wondering whether it comparable to watts/channel on a stereo. 50 per channel into good speakers is enough to drive you out of your home; but the salesperson will try to convince you that 1000 watts must be 10 times better. The D580 certainly makes a very good spark, which ignites the mixture just fine. Once the arc is made and the fuel molecules are burning, does 120 ma spark give you anything that a 60 ma spark doesn’t if the voltage is the same? Presumably it is just a matter of spark duration.
Save me the need to do some researchJ
Al |
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