Today’s Hot Message Board Topic: Replacing Fuel Injection With SU Carburetors

I've often thought a set up like the pic above would be the perfect swap for an MGB.  Especially if you sourced one of the square, ribbed rocker covers from and Escort or Protege, then mill off the words and replace with the classic MG Octagon.  

In reply to Adrian_Thompson :

I like it!!

In reply to Knurled. :

It gets better.  My ultimate fantasy, scrub that, let's call it a daydream instead!  Anyway, my 'daydream' was to use the SU dash pot dome to hid an injector and use MS to run it so it looks like carbs, but is in fact FI.  Not sure how MS would like only two injectors running split port intakes thought.  

Adrian_Thompson said:

In reply to Knurled. :

It gets better.  My ultimate fantasy, scrub that, let's call it a daydream instead!  Anyway, my 'daydream' was to use the SU dash pot dome to hid an injector and use MS to run it so it looks like carbs, but is in fact FI.  Not sure how MS would like only two injectors running split port intakes thought.  

Eh, it wouldn't care.  It would be like dual TBI units or a single ITB feeding a 4-cylinder.  Things just don't happen that quickly on a domestic motor where the timing of that would make a noticeable difference on that type of fuel injection. 

MS wouldn't be able to do it, not without custom code, and I don't know how well it would work.  You'd either starve the second cylinder in the firing order or overfuel the first, or maybe vice-versa.  

I know Subaru didn't bother trying to do port efi with single port engines.  The XT and Turbo EA82s had two intake ports per head.

Adrian_Thompson said:

In reply to Knurled. :

It gets better.  My ultimate fantasy, scrub that, let's call it a daydream instead!  Anyway, my 'daydream' was to use the SU dash pot dome to hid an injector and use MS to run it so it looks like carbs, but is in fact FI.  Not sure how MS would like only two injectors running split port intakes thought.  

SU and Zenith Stromberg using our Bespoke Adaptors
Systems for SU H2, H4, H6, H8
Stromberg CD150 and CD175

With our bespoke adaptors you can easily convert your existing SU or Stromberg equipped vehicles to fuel injection.
These adaptors are our own unique design and fit between the inlet manifold and existing carburettor providing a simple and almost " original look " method of mounting the fuel injectors.
Using these adaptors in conjunction with our kits virtually any vehicle currently fitted with these carburettors can be converted to fuel injection.

In reply to Adrian_Thompson :

Hiding FI injection inside SU bodies has been done on a '75 TR6.  I believe it was Rick Patton that did it.   I believe he also supplied the setup to Bob Danielson.

http://pattonmachine.com/TBI-Main.htm

http://tr6.danielsonfamily.org/index.htm

For the full British Car Experience, why not just use bits of the Lucas fuel injection from a TR5? 

I researched it a lot, adding two SUs with injectors to a 4 cylinder, thinking about doing my B20 that way. Either you need a trick manifold, which do exist for some applications, or use the SUs as throttle bodies and add port injectors.

This seems like fun if you hadn't earlier in life contemplated self harm after having to actually deal with SU carbs on a regular basis.