Direct injection

[Anonymous]

Heres an idea to throw out.

how about hooking up an EFI throtel boddie and a fuel distributer and run hoses from the six ports directly into the throtel boddie at an angle pointed at the intake valve. Disconect the electronic sensors and it should be like having six barrels with only one carburator to tune.

In my HOlley carb book it says that a 250 needs 285 cfm of air and 155 cfm of fuel to get 100% volumetric effincy. That means that I need to find a small fuel distributer off of an old 6 cylinder. Simple adjustments like idle,air fuel low speed and high speed.

 

[Anonymous]

what...like add one vacuum port per cylinder and have fuel line hoses or something and all going toi a single fuel distributer? i dont quite get it, would u have the throttle body in the middle where the carb is for the air, and have a fuel distributer somewhere else? sounds like it could be a good idea though...i like simple but efective ideas.

 

[Anonymous]

two ways that it can be done...

1. one venturi per cylinder with throtel blades connected in one piece so only one idle adjustment is needed, this is your air intake now you get a mechanical fuel distributer to split the fuel line six ways, run the six tubes directly into the bottom of the venturi pointed at the intake valve. you could run one fuel pressure regulater before the fuel distributer.


Or the way that I want to go is run a clifford intake manafold get a six way fuel distrubuter and run each tube pointed at the intake valve. As far as the nozzels go just wire mesh screen over the end so the fuel comes out in a fine spray instead of pouring it out and flooding the valve with excess fuel.

 

[Anonymous]

i dont get how acceleration would work though...are u talking about running hoses from the fuel distributer straight to the intake? what if u had a pump that was connected to a trigger style switch on the steering wheel so u dont even need the gas pedal ...the switch is setup so when activated the pump squirts more fuel in..and when the trigger is released it stops pumping or would u still use the megasquirt system...i just dont get how u can accelerate with the setup...am i not getting something or is this a glitch in the program?

 

[Anonymous]

: : : : :!:

 

[Anonymous]

It is still in the begining stages of design, but I think that I can do it with just a normal 6 cylinder manafold with a throtel body like a 1, 2 or 4 barrel venturi set up normal but the fuel is directed through the top of the manafold about an inch away from the intake valve.


I got this idea from Rons Flying Toilet Injection...

This system is simpler that a carburater

 

[simon]

It is still in the begining stages of design (...)

Lemme get this right -
individual injectors for each cylinder.
and one throttle body.

what is new about that idea? setups like that have been built since the 80´s in production cars.

the six throttle bodies with one single shaft operating all six throttle plates you mentioned reminds me of the hilborn fourholer from the early 60s.

How would you trigger the injectors? the mechanical fuel injection setups from manufacturers like Hilborn and Scott were WOT performers at the dragstrips, but severely lacking idle and transition qualities. definitely not meant for street driven cars, not to mention everyday commuters.

by the way, why haven´t I ever read a single time about taking the EFI harness, injectors, tbi and sensors off any 4.0 HO Jeep engine from he junkyard and adapt that to a ford six, lets say a 250 or maybe even a big six?

 

[Anonymous]

I have had trouble with my EFI i am trying to get to a simpler way.


I have heard that carbs have float problems on steep inclines which I have all intention meeting