FI retrofit, it's done!!! Options

[toon1]

I've been working on retrofitting newer fuel injectors for the 914. My goal was to find an injector that can utilize as many of the stock parts as possible.

I came up with a inj. off a 96 forn escort 1.8l motor.

One comment is needed, this will only work with an aftermarket FI system s these inj. are HIGH inpedence.

This setup gives the ability to use higher fuel pressure, 44psi . It has a lower flow rate than the stock inj.. so the pulse widths will be longer and should give a little better idle quality.

these are disc style rather than pintle( stock). fuel atomization will be much better giving a cleaner, more efficiant burn.

The length of the inj. where shorter than stock so I added an O ring to make up the difference.

The plastic tips are different ,I cut them off and put the tip of the stock inj. on the new inj., fit perfect. now the stock tip O ring can be used.

the fuel rail was machined to tolerance for the top O ring seal. And I made a bracket to support the fuel rail from vibration and also keeping it from popping off the top of the inj.

Here's the setup assembled. enjoy

[toon1]

Hi guy's, I will try to catchup, I've been hunting all w/e.

Yaring the ford escort inj's are 14lbs/ hr which @ 85% D.C. gives about 11lbs/hr.

Yo give it a try , I put the MS on the stim and entered the flow rates on the req fuel and gave it a try.

It, at first came back with 115% so I started raising the flow rates until I found about 85%D.C..

It was determined that the F.P. would have had to been run @ 55psi.

I already had a set of the ford prob inj's. and one I found the flow rates, I entered those#'s into MS and again worked on the stim.

They where much better.

you could go with these inj.s for your setup and they should be fine.

Most of the inj. bodies are the same dia. but the ford inj.'s where about 3mm shorter so I added the O rings above the stock 914 O ring.

1.7ms for opening time is really low and I found that 4squirts "semms" to be better.

You could LOWER your FP with the green top inj's OR run the yellow inj. in your car. They will flow PLENTY of fuel for a 2L. The lower flow rate should give you better PW's

My motor had a really high map, like 54kpa. couldn't seem to get it lower. I tore the motor apart before I could do some seriuos tuning.

One thing to remember Yarin, tou have a vac. referanced reg. this helpsalot when running big inj. I still think the yellow top( for the time being) are worth a shot, if you have a set.

BTW I pulled the probe inj's. at pick and pull, $10 ea.

Jake, I know you don't like MS. In your opinion, what are the probs. you have encountered?
DO you thing, bacause of the size of Daves motor, it was giving you fits? I can't see why Daves motor would be different than any other motor.

Mike, I sure will bring the car by to take a look.