New member - Aircraft engine EFI

Alvaro Gil 242Turbo at alvarogil.com
Tue Nov 27 04:58:24 GMT 2001


Have you considered a fuel only computer?  If you are happy with your 
spark then all you would have to do is use a fuel computer such as a 
Haltech F9 or F9A to control fuel delivery.  It requires no crank 
signal, only a tach signal.  All one has to do is run a wire to the 
coil.  Of course you would also need air temp, coolant temp, MAP and 
TPS.  I can't imagine a more simple configuration.

In fact, I replaced my mechanical fuel injection because of 
simplicity.  My F9A is far more simple and easier to adjust/diagnose 
than my cars previous K-Jet fuel injection.  It has also simplified 
my engine layout by removing auxiliary systems that my car used to 
have like the closed loop 02 computer, idle control computer, boost 
control mechanism, and the thermo-fan switches.  I have consolidated 
these 5 separate systems (fuel, boost, idle, fan, o2) into one black 
box. The Haltech has really simplified my engine compartment.

>
>My thoughts at the moment run along these lines:
>
>1) Keep the system as simple as possible.
>2) Use a single throttle body injection system with one injector
>3) Use just a throttle pot as the "air flow" sensor (it's for low altitude
>use only)
>4) Seperate out the "measuring" part of the system from the "pulse
>generation" part

-- 
____________________________________________
Alvaro Gil		  
http://www.AlvaroGil.com
http://www.BadBricks.com
'84 Volvo 242 Turbo (Silver) 13 psi
'97 Leopard Gecko (White, Yellow, Black)
NJIT Mechanical Engineering Student
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