Megasquirt EFI on an otherwise standard 1100 R4?

[Eccles60]

I've had time on my hands. I just wondered if anyone out there has fitted electronic fuel injection to a Renault 4 - single point via a throttle body from something else presumably.

Megasquirt is the old favourite being relatively cheap to build or buy, and it's very adjustable.

No real need to do this, I simply wondered that's all; I actually like and celebrate the relative simplicity of a standard 4.

 

[dg]

I did think of doing this many years ago, for the sake of reliability, but never got around to it. I was going to make my own throttle body.
I converted my Citroen DS, already multipoint injection but antiquated bosh jetronic analogue system, using megasquirt. The bosch parts were prohibitively expensive and diagnosis almost impossible. Megasquirt solved everything for about £150. I built mine from a kit of parts shipped from the US.

 

[angel]

It would be a very nice idea since user programmable engine management like the Megasquirt became affordable.
Early Twingos were fitted with a throttle body injected Cleon engine, so this could be the donor for the throttle body. Other components like sensors, injectors, ignition coils are now very easy to find and cheap, so it would be a fairly easy task.
Some years ago I toyed with that idea, and got a complete Twingo engine for this. My main concern is reliability, though. I use my R4s for occasional long trips, finding myself in the middle of nowhere many times. I always feel safe that no matter what it breaks down, I'll fix it and it will get me back, because with carburettor and points it is very little that can go wrong, and if something does, you can always fix it on the side of the road with the minimum of spares. With fuel injection there are many other components that may fail unexpectedly. Maybe it's a mind game, but getting pleasure and fun from my R4s is more important for me than MPG or torque figures

 

[Eccles60]

I did think of doing this many years ago, for the sake of reliability, but never got around to it. I was going to make my own throttle body.
I converted my Citroen DS, already multipoint injection but antiquated bosh jetronic analogue system, using megasquirt. The bosch parts were prohibitively expensive and diagnosis almost impossible. Megasquirt solved everything for about £150. I built mine from a kit of parts shipped from the US.

Yes, I'd probably build one myself being a retired electronic engineer. It occurs to me that I could use a throttle body from a similar sized Fiesta or something else very common and cheap (same choke size is key, I could adapt the mounting), or take a second Zenith 28if, keep the throttle plate and linkage, take off the choke and graft in an injector and arrange something for throttle position.

 

[Eccles60]

It would be a very nice idea since user programmable engine management like the Megasquirt became affordable.
Early Twingos were fitted with a throttle body injected Cleon engine, so this could be the donor for the throttle body. Other components like sensors, injectors, ignition coils are now very easy to find and cheap, so it would be a fairly easy task.
Some years ago I toyed with that idea, and got a complete Twingo engine for this. My main concern is reliability, though. I use my R4s for occasional long trips, finding myself in the middle of nowhere many times. I always feel safe that no matter what it breaks down, I'll fix it and it will get me back, because with carburettor and points it is very little that can go wrong, and if something does, you can always fix it on the side of the road with the minimum of spares. With fuel injection there are many other components that may fail unexpectedly. Maybe it's a mind game, but getting pleasure and fun from my R4s is more important for me than MPG or torque figures

Good ideas for throttle body etc and I take your point. I'm not after power, I'm just intrigued by the technical challenges and the ability just to turn the key and it idles no matter what.