Homebuilt systems like Tracy's are great and work just fine.  The

biggest

advantage that I see is the tunablility of the system and the

availablilty at a reasonable price due to using auto parts.

  Another unmentioned advantage of EFI over mechanical injection is the
ability to tailor duty cycle on individual injectors in order to

optimize

fuel flow to each individual cylinder (or rotor). To get the equivalent

in

an MI system requires flow matching of each individual injector such as
GAMI injectors. I think a set of GAMI injectors for an MI system cost

more

than my complete EFI system will.

Mike Wills

In the case of an aircraft engine you will also need a EGT CHT scanner to

accomplish

that and they are not cheap. I don't think Tracy's system can taylor

individual injectors.

Is there a EFI system out there that can do that? The potential is

certainly

there.

Paul Lamar

Yes, the EC2 allows you to adjust the front & rear rotors independantly
while in-flight.  I agree with Mike,  this kind of thing is a huge advantage
of electronic vs mechanical systems.

Tracy Crook
rws@altavista.net
www.rotaryaviation.com

I stand corrected Tracy. You adjust it I assume from the EGT probes in
both exhaust pipes.

Paul Lamar
 
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