Glad to hear about the progress, = Chris. Sounds like you are moving in the right direction. =

Interesting problem about the = coil, Most of the time if a coil pops a circuit breaker due to operating load its naturally at the higher rpm where the coil draws more = current.

Are you using stock Mazda coils or = the LS1 or? What size is your circuit breaker? Are your coils on = separate CB (recommended) and if so which coil is = popping?

Ed Anderson

Rv-6A N494BW Rotary = Powered

Matthews, NC

eanderson@carolina.rr.com=

http://www.andersonee.com

http://members.cox.net/rogersda/rotary/configs.htm#N494BW

http://www.dmack.net/mazda/index.html<= font size=3D2 face=3DArial>

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Christopher Barber
Sent: Monday, June 30, = 2008 11:16 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Saga = progress

Wow, apparently real life progress. I have had = trouble starting the engine. I would seem as if the coils would just stop = working. Well, they were. I had a bad wire at the coil switch. It is still = hard to start but I just did a search of the of the achieves and will be reading = those in a bit. The search on surging is proving very useful. =

Ok, here is the problem though. A question = for the more electrically savvy. When I get the engine to a low/very = low idle I am tripping the coil circuit breaker. It does not seem to be a = problem at mid idle to high RPM. It has been consistent. I don't even know = where to start. Thoughts please.

I got it close to 6000 static today by advancing = to full throttle, flattening out the prop and adjusting the = mixture...couldn't hold the plane with full brake so I pulled back. This is on a newly = built 2nd gen turbo block (currently w/o turbo) with a medium street port = and a Mistral intake, Tracy's ECU, EM and 2.17 PSRU. The engine was built by me, but the street = port was done by Mazdatrix.

The surging is being brought under control with tuning. It does seem that I have to hit the program button a few = times to get it to actually recognize the change, but it is changing. I = briefly tried auto tune, but it went from smooth to surging....don't know if I = have it close enough for auto tune yet. Temperatures to reach my max, = while sitting there on the ramp but it is taking a while. I am actually = pretty happy with cooling right now compared to the past. Also, when shut = down, the engine is just sitting there...no leaks, now weird hissing or = moaning <g>. It is just off. = Kewl.

All the best,

Chris

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