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

[mihai914]

Ok, to keep the ball rolling, can we also talk about options in general and cost?

Let's consider that all these options need "tuning" to different extents.

For example:

Option 1 - Rebuild D-Jet addressing most common problems/wear items (No ignition)

RockAuto New injectors - $300
Restoration Design New Harness - $480
Jeff Bowlsby MPS Rebuild + basic calibration - $474
Jeff Bowlsby ECU testing - $150
914 Rubber TPS board - $52

Total - $1456

Option 2 - PMB Dual 34 ICT Carbs - $610

Option 3 - PMB Dual 40 IDF Carbs - $1180

Option 4 - DubShop Complete EFI with ignition - $4080

Option 5 - Holley terminator X or similar setup - $1249 as a starting point for the basic hardware...

I consider the DubShop system, the ultimate upgrade but can't justify the cost for a stock or home built 2056 (personal opinion).

I never worked on carbs except for small engines and it's a step back for a stock engine with stock cam.

Rebuilding D-jet seems fairly easy except to fine tune the MPS.

The off the shelf system could be a nightmare or could become plug and play if there is vendor or community support. Final cost is unknown for now and depends how far you exploit the system.

Questions:

A: What is your tipping point $$$ to put D-Jet in a box and start fresh?
B: How much time are you willing to spend to install and setup the system?
C: Which option would you be willing to help a 914 buddy if he offered a bbq dinner and some beer?

Please feel free to add options.