Which fuel injection
 

Planning to make my final engine choice shortly and start placing orders this Summer for an IO540 and accessories. Currently looking at the 6 cyl PMag for ignition(it is being introduced at Sun-N-Fun), but still wondering what to do for fuel injection. Currently looking at airflow performance and efii. More complicated to setup the efii, is it worth it? Will there be a significant difference in fuel efficiency between the airflow performance mechanical injection system and the efii electronic injection system?

EFII
 

I have the complete EFII system on my 7 and didn't find the fuel injection system difficult to setup at all. There is a little bit of extra plumbing to do because there is a fuel rail that feeds the injectors along with a fuel return line to incorporate, but it's not difficult to setup and it's a very nice system. As a matter of fact, the fuel rail and the fuel return line is basically one in the same. Unless you're just partial to P-mag for your ignition source, you might consider incorporating the complete EFII system for both your fuel injection and and ignition needs. If you already have the SDS computer installed to operate the electronic fuel injectors, you might as well let the computer control your ignition as well and let the entire system talk to each component like it's designed to do. I guess you could forgo one of the coils and use a P-mag or regular magneto in its place, but if you have all of the other backup components in place that Robert recomends, you'll have a very modern and rock solid system.

I have no experience with efii, but went with AFP because that is what Allen Barrett recommended for my IO540. It has been rock solid over 3 years.

Jim Berry
RV-10

Every experimental engine builder I talked to recommended AFP so, I have AFP

FI
 

Mine is ECI and I couldn't be happier. The electronic fuel injection and ignition system sound very interesting though.

AFP!
 

2 airplanes and AFP is what I have and could not be happier.
If (when) I build a third, it is going to be AFP again.
Don Rivera is a frequent contributor in this forum and a very
knowledgeable man.

P Mag deliveries
 

P Mag has promised to start delivering the 6 cylinder model for at least 5 years now at each of the airshows they are at. Don't believe any delivery dates that they quote to you.

Gary Specketer

+1 for Don at Airflow...great guy.

Best,

EFII systems for O-540
 

Hi Bill,
We make dual high energy electronic ignitions for the O-540 in both single and dual ECU versions. We also make a complete electronic engine management system including electronic fuel injection and dual high energy electronic ignition for your engine. The full system is also available in both single and dual ECU versions.

In addition, our system is modular. If you choose to start out with just our ignition, you would have the option of adding the additional components for the fuel injection in the future.

If you have any additional questions, please contact me at:
robert@protekperformance.com

Best of luck with the project,
Robert Paisley

FI
 

I have a Bendix fuel injection system overhauled by Don and crew at AFP. Great guys.

I also have Robert Paisley's totally redundant dual electronic ignition. It has it's own separate battery in case the main buss fails. It is a great system, uses automotive Iridium plugs, starts quickly and allows me to lean the fuel flow about one gph less than I could before. I am very pleased with and highly recommend his electronic ignition.

I can't comment on his fuel injection system as I haven't seen or flown with one yet.