HI PAUL

  I WONDERING IF SOMEONE TRY THE SAME SYSTEM AS FUEL
 INJECTION WITH
  SERVO,SPYDER AND MECHANICAL INJECTORS,IT SEEMS SO SIMPLE
 TO COMPARE
  WITH THE ELECTRONIC FUEL SYSTEM.

  I ASK QUESTIONS BEFORE CONVERT THE 2005 GENESIS

  THANK,S PAUL


  Jean Prudhomme

  Yes it is. Steve Beckham on here did a lot of work with
 mechanical fuel
  injection.
  The Mazda rotary engine road racers used it for years.

  Paul Lamar


  Jean--Don Rivera at Airflow Performance is the guy you
 need to contact.
  He
  supplies a complete fuel injection system for rotary
 aircraft engines.
  We
  dyno and flight tested his stuff for over 10 years on
 various rotary
  aircraft engines and it worked perfectly.  Don worked at
 Bendix and his
  mechanical fuel injection system for aircraft engines is
 very similar.
  Don's
  system works as well as, if not better than the original
 system.  Don
  also
  services certified aircraft Bendix-based systems which
 are still
  supplied
  on
  new Lycomings, and offers all kinds of services to
 experimental aircraft
  builders including components and full systems. His units
 are also sold
  by
  Van's Aircraft.The system we developed for rotary
 aircraft engines in
  the
  late 80's and early 90's used Don's
 components.  He has done rotary
  projects
  with Jim M @ Racing Beat as well.  Sean Tucker and all
 the top airshow
  and
  aerobatic competitors use Don's injection systems.
 Great guy, great
  family
  owned and operated company with great service and
 products.

  Steve Beckham

  Steve or anyone know how much this system costs - a bunch
 is my guess.
  George (down under)

  $2,860.95 is the list price from Airflow Performance for
 the 13B kit.
  Vlad

  Vlad,
  I can see why your looking at carbies.
  George (down under)


  That's pretty steep pricing, indeed.  Is it cheaper
 than the Lycoming
  setup?  The rotary only needs half the nozzles and spider
 outlets.
  Then again, I guess it's probably a fuel pump setup
 that's not common
  to anyone else - the LyCont FI setups being accessory
 case driven..

  The Holley with the leaning block looks better and
 better.  I'm not
  _that_ interested in sustained inverted flight.  For
 naturally
  aspirated, I think the Holley will be tough to beat.
 Parts available
  world-wide, any mechanic can figure out how it works,
 cheap rebuilds,
  known tuneability.

  I think the only way FI makes sense on the rotary is for
 forced
  induction or for aerobatics (which opens a whole other
 set of
  challenges (oil management)).  FI makes more sense on a
 regular
  multi-cylinder piston engine because it offers relatively
 easy
  balancing of fuel flows between the cylinders.  On a two
 rotor engine,
  it should be relatively easy to get good fuel (and air)
 distribution
  given that there are only two induction paths.


  Regards,

  Matt-

  I couldn't have said it better Matt. I'd venture
 to say that the Airflow
  Performance kit is most likely still cheaper than the OEM
 system. In
  regards
  to the Holley, sure seems nice to pay $80 for a oem
 'renew' kit and drop
  the
  whole lot off at a local mechanic for a rebuild. Talk
 about chump change
  in
  aviation money.
  Vlad


  Good.

  The only thing I might back off from is Paul's 555
 system.  It
  definitely shows a lot of promise, but it's as yet
 unproven.  I am
  hopeful, but I'm still enamored with the idea of
 buying nearly off the
  shelf stuff.  It also sounds like Mark's engine may
 be around the
  corner with Tracy's injection system.  I'll be
 interested in
  continuing updates on Mark's status.


  Regards,

  Matt-

  Matt are you sending stuff out in html format?

  Paul Lamar

 Paul's 555 system shows an amazing amount of
 potential. If I were ever in
 need of a standalone, I would either build a 555 or buy a
 MegaSquirt and
 call it a day. The simplicity and cost make the 555 really
 shine but the
 problem I have with the system is the need for a MAF
 sensor. I understand
 why Tracy choose to use MAP instead as the costs for a new
 MAF sensor are
 just ridiculous. This all goes back to how many people
 REALLY need efi?
 Vlad

 I'll be back working on that soon. I have a p-port RX8
 motor I will run it
 one.

 Paul Lamar


 Paul,
 I'm not an electrical engineer by any stretch of the
 imagination so I have
 to ask why can't the 555 system be converted to run
 info from a MAP sensor?
 I know I said I'd refrain from asking questions as to
 'not waste your time'
 but I'll play a hypocrite for the sake of knowledge.
 Vlad

 You could but why would you want to do that? You have seen
 all the
 trouble people have had trying to tune MAP systems. It is
 not for nothing
 the entire automotive world uses mass air flow sensors. The
 mass air flow sensor
 does it all for you.

I guess I'm not much for the value of money, but the price of an
after market mass MAF for say, a 5.4l v-8 is about $110, I've
seen them for less on close-outs and smaller engines. I don't
think that's excessive. $30,000 for an IO-360, now that's expensive.
In many cases, I've found that the cheapest route isn't always
the best in the long run, whether it is from cheap things wearing
out or failing prematurely(then having to pay again to replace it),
or quality issues that aren't readily appearent. I don't let my
ego prevent me from admitting that I made a mistake in the decision
making process to go cheap. If money were the issue, I wouldn't be
flying, I would be bowling. My opinion only, your results may vary.
C. Smith

They cost as little as $10 in a junk yard. You can check them in
a junk yard with an ohm meter :) If they are working they are as
good as new. Many are rejected by the dealers when all they need
is a bit of cleaning with a tooth brush and alcohol.

I had to clean the one in my V8 Mercury
Cougar once a year :) Take it into the dealer and drive out
with a $500 bill :) My 94 OBD II V8 Merury Cougar "check engine" light
came on. No idea of what was wrong.   I kept driving it for a couple
of months and finally it started to miss   real bad. I took it into
the dealer and paid them $82 just to diagnose it.

This light can come on and will stay on for any one of 256 different
"faults". One of which is leaving your gas cap off. You then need
to take it into the dealer and have him turn the "check engine"
light off for $82. If you don't do that and you take the car in
to have it's CA bi-annual smog check and the smog person sees the light
on it won't pass smog.

Paul Lamar


Around here, Autozone will ready check codes for free (with the idea
that they might sell you something if you stop by)..

A mechanic friend near me charges about $90 to diagnose (read the
code) and clean the MAF..


Matt-


Matt I think the problem is how your email program is forwarding messages.
Can some one help us out here. Why are we getting  the  character.
Matt what email program are you using again? This is becoming annoying.

Paul Lamar