Available for the 924NA, 924SC and 931.

I've worked on a set of parts that will allow us to convert the 924 to EFI, but keep all the CIS components in place and partially re-use them. 

The idea is absolute bolt on, plug in, start and drive, 100% reversible. 
So no wires to solder, no wires to split into. 
ECU comes pre-mapped. 
All the sensors and other EFI specific components will be bolt on to the old system and will stay as hidden as possible. 

The "cherry on top" is the fact that this system wont use a conventional fuel rail. 
Rather a replica of the original fuel distributor block acting as a fuel rail (block). 
You get a set of new fuel lines as well.

Aim is: you open the bonnet, you spend 2-3h bolting on parts and connecting electrical connectors, you close the bonnet and you start driving. 
Keep all work under the bonnet and installation time around a few hours. 
End result is the engine bay looks nearly identical to the original but runs a modern system. 

This should bump the power and torque up, improve reliability and driveability..no hot/cold start issues...smoother engine, more power. 
Maps developed on the dyno and refined for drivability on actual cars, being driven on a daily basis.

For the 931S2, everything is already on the car, but for the 924NA/SC or the 931S1, the throttle body needs to be upgraded for this conversion, you need the TB from the Audi C4, reference part number: 048063D

General view and guide for the EFI kit installation VIDEO:

https://youtu.be/ais85MD-MAw?si=msMRbbLXWYZ4P_Kw

 

Below some development phase pictures and the first prototype car.