A question on EFI theory

[David Doddek]

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>Text item: 
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>If one were to design a system from scratch and have complete control over
fuel 
>maps, etc., could a system be made that measured the MAP between the throttle 
>body and supercharger rather than at the intake manifold?  Could the fuel
map be
>designed to compensate for the increased volumetric efficency of the 
>supercharger at a given RPM and MAP?  
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>Putting it another way could I use my Holley 4di throttle body on a Whipple 
>supercharger on a small block chevy with the MAP and vacuum taken off the 
>throttle body port rather than the intake manifold?
>
>Thanks, me.
>


It is possible, but if it were me, and I was designing a EFI system (and I
have) I would place a pressure tap after the blower to connect the map
sensor.  You can still use the holley throttle body and injectors.  But
using a reference in this way will make tuning a whole lot easier.

David Doddek     pantera at pobox.com    www.pobox.com/~pantera    217-422-3722
69 EFI Fairlane, 89 T-bird SC, 74 Twin turbo NOS EFI Pantera #6825
If you are going to go fast, go real fast.