3b s2 coupe resurrection

[newsh]

What EM?

[andy10v]

What EM?

RS2 style one I got from quattro nick is already fitted

[newsh]

[andy10v]

Current plan is

ABY ecu conversion with coils
check everything works

Fit wagner intake manifold
remove gearbox
remove downpipe
fit new turbo
fit clutch
refit gearbox
make new downpipe
fit exhaust
fit pressure side maf
fit eboost

check car runs on low boost

drive to Automark, fit 440 injectors

Live map

Any suggestions/flaws in my cunning plan?

Also have an AAN valve cover coming

I presume I can continue to use the 7a fpr as it is 4 bar same as ABY?

[newsh]

Yep, although I switched to an ABY fuel rail while I was at it

[andy10v]

Any reason? I guess fuel pressure regulator is more available for ABY clip in?

[K Simmonds]

That all sounds like a good plan, I can see myself doing the same within 12 months.

Are 440's going to be enough, do you know what Albert uses?

[andy10v]

Just for fun or for more reliable ignition? ABY has better vag com stuff as well.

Hopefully, Mark said they would be fine, said they flow more fuel than some other higher rated ones.

Albert

It is not good to run over 80% duty cycle on injectors. Get 550 cc @ 3 bar to be on safe side. You can boost the press to 4 bar if you would need more. Use Bosh 040 fuel pump form old Audi k jetronic to pump the fuel.

I'm runing my K26 on the race track ... it is responsive look at the videos https://www.youtube.com/channel/UClx...gynbMJGPOVvT4w

I can make a bet that it is more responsive than the RS2 turbo. This is why I did not get it my self. It has much older compressor wheel in technology aspect.

[newsh]

Any reason? I guess fuel pressure regulator is more available for ABY clip in?

Fuel lines are a bit tidier and the rail is stainless
You have to bend things a bit to miss the dizzy though..

[K Simmonds]

Safer ignition mainly, which I would want with one of Alberts turbos plus Dmitri will still map it when he's over here. If I stick with RS2 spec the dissy stays for the foreseeable future, I'm not going to change anything until I've done a good few miles with the new clutch fitted which will be happening soon. I should have a new OE Sachs release bearing on Monday, they can't get the SRE one any longer, it was only £18 but is the correct one so should be OK.

[martinws]

I have an ABY rail if ya want it Andy?

[newsh]

Might as well put these here, I think this is all you need apart from some cushions, a good head torch, pin extractor, some wire and a few connectors (2 x 4 pin and 2 x 3 pin male Junior timer)

Wiring of the 4 connectors for the coilpack loom

The 2 x 3 pin connectors are easy, they are the +12v supplies for the coils so all the pins are the same. (I did all three on both so they're interchangeable )

The 4 pin connector with all 4 pins populated as follows:
Pin 1 - Cylinder 3 coil trigger
Pin 2 - ECU Earth
Pin 3 - Cylinder 2 coil trigger
Pin 4 - Cylinder 1 coil trigger

The 4 pin connector with only 3 pins populated as follow:
Pin 2 - ECU Earth
Pin 3 - Cylinder 5 coil trigger
Pin 4 - Cylinder 4 coil trigger

[andy10v]

I have an ABY rail if ya want it Andy?

That would be great, even just to mock up and see

When you free and I will see if we can vag com your car as well?

[andy10v]

Might as well put these here, I think this is all you need apart from some cushions, a good head torch, pin extractor, some wire and a few connectors (2 x 4 pin and 2 x 3 pin male Junior timer)

Wiring of the 4 connectors for the coilpack loom

The 2 x 3 pin connectors are easy, they are the +12v supplies for the coils so all the pins are the same. (I did all three on both so they're interchangeable )

The 4 pin connector with all 4 pins populated as follows:
Pin 1 - Cylinder 3 coil trigger
Pin 2 - ECU Earth
Pin 3 - Cylinder 2 coil trigger
Pin 4 - Cylinder 1 coil trigger

The 4 pin connector with only 3 pins populated as follow:
Pin 2 - ECU Earth
Pin 3 - Cylinder 5 coil trigger
Pin 4 - Cylinder 4 coil trigger

Brilliant, thanks John

Do you have any recommendations on pin extractors? (I have just used ground down things in the past)

How are the ecu pins numbered? EG left to right as you face the plug?

Alex is doing this for me

Make a bespoke coil harness that plugs straight into the coil connector on your 3B engine loom for +12v and earth. The coil trigger signal pin will be redundant.
Use a 2 and 3 pin connector to connect to a small sub-harness that runs back to the ECU with your 5 coil trigger outputs you need to add to the ECU connector. That way you can unplug and remove the actual coil harness if necessary which will make life easier in future, plus it will make the install easier.
Run it through the bulkhead using one of the blank grommets under where the battery tray used to be, I can install the actual grommet on the sub-harness before terminating it with the right ECU terminals.
Then you just bosch it through the bulkhead and plug straight into the ECU connector when you do the pin swap. Simples

[newsh]

The connector is numbered, at least at the ends, so you just count along, the wire colours in the pinout table help.

I bought one of These but it arrived after I'd finished, I have another one which is a bit of a fiddle