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From: Bulent Aliev <atlasyts@bellsouth.net>
Subject: Re: [FlyRotary] ReSetting Default MAP on EC2 was  [FlyRotary] Questions
Date: Sun, 12 Nov 2006 21:48:51 -0500
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>


On Nov 12, 2006, at 9:04 PM, Ed Anderson wrote:

> Hi Buly
>
> Sounds like things are sounding good {:>).
>
> Buly, I could be wrong, but I don't think you can copy map from B  
> controller to A controller - only the otherway around.

I did not think so, but wanted to make sure.

>
> If I understand you correctly, you are finding that your engine  
> runs better on Controller B rather than A.  I presume that  
> Controller B is still in its default settings ( meaning you have  
> not tried to change its fuel MAP as you probably have with  
> controller A).
>
> If that is correct, then all you should need to do is return  
> controller A to its default condition which should be the same as  
> controller B default and then controller A should provide what you  
> want.
>
>  To do this, power to the EC2 and injectors must be OFF - BUT, the  
> injector disable switches should BOTH be set to ON (You may need to  
> pull a CB to remove power from your injectors with the injector  
> switches in the ON position).
> If either of your disable switches are turned off while doing this  
> it grounds the cold start circuit - and if you reset the controller  
> in this condition, it resets the MAP default to Tracy Crook's  
> PERSONAL default MAP rather than the generic default of controller B.

This point is a news to me. I'll try it per your instructions
>
>
> You set the switch to controller A and put the mode selector to  
> mode "1" (one).  You then push in the program button and hold it in  
> while you turn power on to the EC2 controller.  Release program  
> button after 2-3 seconds and you should have mode A programmed to  
> its default.
>
> The reason you need to remove power from the injectors or otherwise  
> make certain there is no 12V to the injectors  (by means OTHER   
> than using the injector disable switches) is there is a sneak  
> circuit in the EC2 which can provide power to the EC2 through the  
> power feed to the injectors - even though your EC2 power switch may  
> be off.  If that configuration exists, then you may think you are  
> holding the program button before you apply power - but in reality  
> power is already there and therefore, you will not be successful in  
> causing the controller to go into the default MAP mode.  Now if you  
> only have one switch that removes power both to the EC2 AND the  
> injectors (like say a MASTER switch) then that is the only switch  
> you need to worry about.

That's what I usually do. Just turn the master ON (everything else  
off) while holding down the program button. But I'm not sure if there  
is a sneak power to the injectors? I'll check that.
> Can't help with the EM2 as I don't have one.
>
> 1750F at full throttle is not unreasonable.  EGT can vary from  
> installation to installation depending on what type of EGT probes  
> you use and how far they are positioned from the exhaust port.  The  
> closer generally the hotter, long probes which protrude further  
> into the exhaust flow will also show hotter temps.

My probes are 2" away from the ports and protrude about 1" in to the  
middle of the exhaust pipes.

>

>
>> I run today my engine with the new muffler with good results. Got   
>> 6000 rpm static with 78" IVO Magnum 2 blade in fine pitch and the   
>> noise was very acceptable. My questions are:
>> The plane run much better on computer B. Can I copy B to A?
>>
>> My EM2 always shows EGT for Rotor 2. I can not figure out how to   
>> monitor 1 & 2  so I can adjust the mixture to match. I know #2 is   
>> running leaner from looking at the exhaust ports last time I had  
>> the  headers off. #2 is brown and #1 is black. Unless keep I  #2  
>> until #1  pops up?
>>
>> I was seeing EGT's around 1750 at full power. Is that normal?
>> Buly
>>
>>