-------------- Original message from "Greg Ward" <gregw@onestopdesign.biz>: --------------

Hey Tracy (and others)

Setting up for engine first run dyno (finally).  Couple of things.  Is your friend who makes wiring harnesses making them for the 20B/Lancair combo?  Going to test the water and oil systems for pressure.  30 pounds on water, and 100 pounds on oil?

Greg Ward

Lancair 20B N178RG making progress......

----- Original Message -----

From: Tracy Crook

To: Rotary motors in aircraft

Sent: Tuesday, May 05, 2009 7:04 AM

Subject: [FlyRotary] Re: finetuning2

66mm is not oversize so I'm surprised with no increase in power after 2/3 throttle.   Never hesitate to play with the mixture control when testing.  It is the fastest way to educate yourself on the effects of mixture on performance, fuel burn, EGT curve, etc.  You can't hurt a normally aspirated 13B with mixture (assuming ignition timing in the ballpark) so there's nothing to loose either.

If that top speed was in IAS at 8500 you're not doing too bad anyway.

Trace

On Mon, May 4, 2009 at 11:16 PM, Don Wallker <drwalker@gbis.com> wrote:

Tracy,
66 mm ford mustang throttle body, I believe suggested by you.  To busy flying to notice all the numbers.  Mostly concentrating on flying and temps.  Alt 8500 ft, 40 Oat, No idea about manifold pressure.  Mixture set at mid range, but not really looked at.  We have had a lot of weather here the last few days, but is looking better toward the end of the week.  I got the diagram and printed it and realize it is a fix, not a solution.  I'll get to the airport tomorrow and draw a diagram of my electrical system, with lengths, positioning, etc. I've never tried running without the main buss off.  I'll run it and see if there is a differance with only the Essential buss on.  Thanks for all the thoughts, all of you.

Don

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