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[DasPoop]

well this would work awesome except for the fact that i cant use this setup with them because it would be all 6 going off at once and just flood the shit out of the motor. I need to look exactly how a hot wire maf works and figure out a dedicated circuit to run aux fuel injectors based on maf flow. a type of resistance to a pwm circuit to a set of extra injectors plumbed into the intake manifold.

[snm95ls]

Ever heard of a batch fire injection scheme?

[DasPoop]

aah like digifant pulse them all at once good idea dude. I could see a circuit based off of a trigger wheel or tach signal that would turn on at 1 psi and use a dedicated rrfpr for the system. Would require 2 pumps and 2 fuel lines but thats what the jy is for. Or batch fire based on the ideas i had thought about with a hot wire setup running a circuit to fire them off based on airflow. tuning them with fuel pressure. hmm idk i suppose the ideas are endless for a simple and inexpensive fuel management.

[Joseph Davis]

*sigh*

[Eggylshatch]

*sigh*

LOLZ.  It's funny because its funny.

[Joseph Davis]

On one hand I'm frustrated because he won't listen.  On the other, I'm sort of proud he instends to learn it on his terms.  If he goes through with this, that is.

[DasPoop]

went to the jy today and picked up every gm a/c pressure switch i can. from my findings about 1/8th of a turn on the adj knob yields a 2 psi change in where it will trip the switch.

I need to build a pressure log to screw all of them into.

Also need to order the parts for the rpm switches as well

Does anyone know a simple way to simulate a tach signal? I plan on getting a bench testable model in about a month.

JD and everyone else I thank you for your input. If this works cool if not well i wont exactly have tons of money involved and it will be a fun project regardless

[That Guy]

Sounds pretty crazy man, im in for pics of the evil dirty looking mess of wires, injectors and map sensors.  :yes:

[DasPoop]

oh its going to be wild haha

[BoostedSchemes]

what kind of tach signal?

i had to fuck around with that for a good bit when I had megasquirt...

[kgx]

remind me again why you're not just cutting some notches into the crank wheel and running a $20 7730 ECM? if you're looking for cheap, it would cost less than those hobbs switches you have planned (speaking of which, why are you using hobbs switches instead of an MPXH6400 and a couple of LM339s? $8 sensor and 2 $0.50 chips cost less than even a single hobbs switch).

[DasPoop]

what kind of tach signal?

i had to fuck around with that for a good bit when I had megasquirt...

just a square wave signal. i suppose i could try building a pwn circuit and put a variacap in it so i can change the frequency of the waves idk what did you do.

I am not using hobbs switches i am using 1$ a peice gm a/c switches out of the JY
I actually have thought about using a maf based gm ecu that was batch fired so all it needed was a tach signal and a maf and tps to run. i figured since it wasnt messing with timing of the motor i have i can play with the maf and injector size to make it work under boost fairly well Idk how well it would work if i put power to the ecu at say 5" of vac and hopefully let it dump in fuel by boost. does anyone know if the older IE 82-85 gm ecus are chippable?