Aftermarket FI options for Type 4 motors 2056 or larger, Who here has gone this route and is it worth it? What options do we have? Options

[DRPHIL914]

i started looking into this 2 years ago when i was planning my rebuild motor after the drpped valve seat on the OEM motor.
I ended up building a nice 2056 with increased compression, brand new heads, counter balanced crank and of course the cam is performance minded as well.
to start i installed the d-jet and later last year i added a 50mm bored out stock throttle body from Tangerine/Chris Foley. Yes this helped a great deal, but we are still limited due to the d-jet and the MPS. So there are a few people out there that make ITB( independant throttle body) that could be used.
One is Jenvey, and i see that PMB is carrying those. It looks ike they are mated to what ever IDF intake manifold you choose. there are 40, 45, 48 options. mated with 350cc injectors.
I am wondering other than the CB performance stuff that has been available for a while, others have come to the table, who here has played around with this ? over the years ive read a lot on others using the megasquirt and micro etc and it seemd they were very difficult to tune and set up with lots of problems, trial and error.

I am looking for advice on what to stay away from and what are the pitfalls and mistakes we can avoid before jumping into this.

Look forward to some input, thanks!!

Phil

[emerygt350]

If it were me, I would see if the stock FI will work first. The djet is tuneable to a large extent if you have an afr gauge and tangerine racings upgrades to the MPS. People above have mentioned a few turns on the old Ljet made it work with a bigger engine and other improvements.

If original Fi performance can't do it, I think I would go a couple of potential routes. I kind of like the idea of 2x1barrel holley's on custom intakes. Each could have its own bank o2 sensor. Not sure if they would be happy working like that but it might work.

Another move might be seeing if holly or fi tech has moved into that port injection setup they have for V8s. If they have a version for a 4 cylinder you could potentially keep everything the same and pop on the throttle body and injectors. All kinds of potential issues there with sizes etc. but I would look.

I like the idea of a completely self contained setup so I would probably not bother looking at other cars systems if it were me.