Great work. I've tried to find my earlier response to your plans to inject your engine, but the forum changes have ruined the 2020 posts and I cannot source what I wrote to you and
pmuller9 back in 2020.
I was quite sure back then you didn't understand that a stock Bank Fire Speed Density V8 Electronic Control Module could be easily adapted to a supercharged in line six. Eight stock injectors are used to fuel around 220 to 240 hp, and you are able to add more fuel with a marginal increase injector size. Not all fuel has to come from the same place, and fuel and injector and throttle body metering options vary hugely depending on what your actually trying to do.
I am delighted a real EECIV and EECV expert with engines under boost has weight into the conversation. Welcome
decipha.
I've discussed this extensively before elseware on FordSix and Four Eye Pride, using 8 injectors and the Mass Air Ford EECIV 5.8/7.0 truck computer on a six cylinder engine.
This is what Advance Induction Technology's David Inall at AIT did in Australia to the port EFI 250 Falcon engine.
It had three different ECM systems from 1983 to 1988; a BMW LE-11 Jetronic computer in the first two years (83-85), then an EECIV fix fuel non feedback VAM (97 octane leaded gas 85 and early 1986) and then with 91 octane Unleaded Gasoline from 1986-1988, and O2 sensor feedback with VAM.
In each case, AIT added 255 hp to a 149, 164 or 162 hp engine by adding the US CFi Ford blue injectors, and so the car lean cruised on six injectors like a standard 149/164/162 hp emissions engine, and when boosted with up to 10 pounds of extra turbo boost, it added 93 to 106 hp of extra fuel at a rising rate by two upstream injectors ahead of the turbo and below the VAM.
http://vb.foureyedpride.com/showthread.php?183370-302-rebuild-options-for-CFI The 5.0 CFi 150 and 155 hp blue 46 pound injectors were used as an extra "auxiliary" fuel supply in the 104 hp stronger 255 hp Falcon Turbo in 1983 to 1987.
Started off with a stock 149 hp Port EFI, then got a twin scroll T03 60 turbo, and the first use of the USA Auxiliary Fuel computer.
By 1985, 161 to 164 hp stock, and still the same 255 hp turbo option, using the same components.
So this is a stock EFi Bosch LE-ii or EECIV fuel injected car, with 100% factory EFi, and just an auxiliary fuel supply ECM.
I am indebted to my ex Ford shop foreman Alan and mate Richard and Reeve Callaway, who gave great info on the stock American TBi and Bank fire Port EFi fuel systems.
Six injectors bank fire to the ports, and two alternate bank fire above the M112 blower. You get an eight cylinder fuel supply, with pulse width able to be changed to suit load. An M112 is the same as adding 112 cubic inches of engine. That is, 300--->412
You sequence spark by a Miss fire detector from an 1996 4.9 EFI crank, or gut the Six cylinder distributor and create a crank trigger. You can sequence six park events, and two bank fire, alternate injector events. Bank fire is really simple. Every second injector behaves like its is a right bank on a V8.
Before David Inall pulled the pin further work, there was a Twin Turbo Australian Induction Technology AAT Twin Turbo Fairmont Ghia,
All were stock ECM systems, with Auxiliary fuel of varying kinds. Like putting an upstream turbo with a carb on an EFI vehicle. Or two T25 or T03-60's like the Fairmont below. So 420 hp was possible with stock EFI plus a better cam, forged pistons and some work on the forged rods and cast iron crank.
There was a 12 injector setup, as well as a 7 injector setup (right before the T/B and only activated at WOT) and there was also the 6 injector setup.
They used the T03 60 Split pulse turbo on a log manifold, the dump pipe mated directly up to the factory cat system. They used small intercooler piping which fed under the front radiator support and fed up to a small intercooler. They also had cut outs in the front bumper for air flow and had a air director which mated up to the intercooler from the holes.
Nothing on the fuel pump/ECM/exhaust was touched. It was simply a slap the turbo on and off you go type job, and since the emission's cycle was done on part throttle, every engine was variously US 1973, US 1975 or EU 1986 Emission compliant depending on year.
360 hp and 420 lb-ft from a 1987 4.1 liter twin turbo Falcon six, up from 161 hp with the stock EFI 4.1 Liter
When the 1988 EA 26 3.9 liter OHC came out WITH 186 HP EECIV Multipoint EFI, David was working with Ford to factory turbo charge it to 255 hp, but there was a budget cut, and Ford decided not to go ahead with the project. The kits were released,
but AIT decided to disband after the loss of a Four Wheel drive 1987 project car at the hands of some English journalists.