. It is just off. Kewl. =20 All the best, =20 Chris ------_=_NextPart_001_01C8DB85.6B41F000 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Chris,

The only thing I can think of that might = cause this=20 problem is your battery / charging voltage. Are you running with = your=20 alternator on? What rpm does it start charging?And what is your battery = voltage=20 at the low rpm when it trips?

Bobby

From: Rotary motors in aircraft=20 [mailto:flyrotary@lancaironline.net] On Behalf Of Christopher=20 Barber
Sent: Monday, June 30, 2008 9:16 PM
To: = Rotary motors=20 in aircraft
Subject: [FlyRotary] Saga = progress

Wow, apparently real life = progress. I have=20 had trouble starting the engine. I would seem as if the coils would just = stop=20 working. Well, they were. I had a bad wire at the coil switch. It = is still=20 hard to start but I just did a search of the of the achieves and will be = reading=20 those in a bit. The search on surging is proving very = useful. =20

Ok, here is the problem = though. A=20 question for the more electrically savvy. When I get the engine to = a=20 low/very low idle I am tripping the coil circuit breaker. It does = not seem=20 to be a problem at mid idle to high RPM. It has been consistent. I = don't=20 even know where to start. Thoughts please.

I got it close to 6000 static = today by=20 advancing to full throttle, flattening out the prop and adjusting the=20 mixture...couldn't hold the plane with full brake so I pulled = back. This is=20 on a newly built 2nd gen turbo block (currently w/o turbo) with a = medium=20 street port and a Mistral intake, Tracy's ECU, EM and 2.17 PSRU. = The=20 engine was built by me, but the street port was done by Mazdatrix. =

The surging is being brought under = control with=20 tuning. It does seem that I have to hit the program button a few = times to=20 get it to actually recognize the change, but it is changing. I = briefly=20 tried auto tune, but it went from smooth to surging....don't know if I = have it=20 close enough for auto tune yet. Temperatures to reach my max, = while=20 sitting there on the ramp but it is taking a while. I am actually = pretty=20 happy with cooling right now compared to the past. Also, when shut = down,=20 the engine is just sitting there...no leaks, now weird hissing or = moaning=20 <g>. It is just off. Kewl.

All the best,

Chris

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