My 3B to RS2 project

[newsh]

Pics from this evening

[newsh]

My 3B to RS2 project

Some progress and some setback..

New alloy rad is in with the 3B shroud and fan for the mo. Need to run it up to temp to check fan comes in ok, should be fine.

Got the AN turbo line fitted after a bit of fiddling around. Unfortunately the feed flange has a pin hole in the weld so a tiny oil leak, Chef will send me a new one Monday, it will need a run to check but should be good to go for ADI.

[twoqu]

It's surprising how much stuff they changed to get the ABY fan into the engine bay. Apart from relocating obvious stuff even the top rad hose is a different shape.
Unfortunately 2 speed fans are hard to find if you want to retain the three speeds. Audi actually went back to the 200q rad fan set up including its resistor pack etc on the ABY thats where the 44X p/n originate from.
A nice rad/shroud/fan combo would be a nice addition and the OE functionality would be a bonus but perhaps not really necessary as long as the fan could cope with the demands of the cooling system.

[newsh]

This of any use?

http://www.s2forum.com/forum/showthread.php?t=59802

The 3B fan is a PITA for accessability. I was looking at using an OE 2 speed fan and a fabricated shroud so that it could still have all the speeds. In essence the ABY fan is one speed, and achieves its speeds through various resistances.
Unfortunately the OE fan I have in mind is massive but IF it could be squeezed in would make accessability much easier as its held with a few screws to the shroud meaning that it can just be lifted straight out.
I don't think they would be any advantage to using an ABY shroud with a aftermarket fan as it sort of defeats the object. The fan needs to pull the air through the shroud really. So an aftermarket fan with a fabricated shroud would be better.

Very helpful Robin, thanks

I was thinking of an aftermarket fan the same diameter as the circular hole in the ABY shroud

I can actually get to the 3B fan motor connector as the battery now lives under the back seat.

[twoqu]

This of any use?

http://www.s2forum.com/forum/showthread.php?t=59802

The 3B fan is a PITA for accessability. I was looking at using an OE 2 speed fan and a fabricated shroud so that it could still have all the speeds. In essence the ABY fan is one speed, and achieves its speeds through various resistances.
Unfortunately the OE fan I have in mind is massive but IF it could be squeezed in would make accessability much easier as its held with a few screws to the shroud meaning that it can just be lifted straight out.
I don't think they would be any advantage to using an ABY shroud with a aftermarket fan as it sort of defeats the object. The fan needs to pull the air through the shroud really. So an aftermarket fan with a fabricated shroud would be better.

[newsh]

There's this bolted to the cowling I reckon it's N47

[Error404]

The resistor is in the fan motor on the 3B, that's why there's a 3 pin plug on the 3B fan. Not sure about the after-run curcuit, I guess there is a separate resistor pack for that?

[newsh]

ABY rad fan will fit with stock rad - just.
I think you might struggle with a thicker core.

PITA with those ****** fittings from 034

Yeah, the flange didn't stand a chance, the ali had grown into the steel fitting so I just pulled on the spanner and thought, "that came undone easy!"

Hmm, maybe I could fit a Pacet fan to the ABY housing? But will the resistors work for the first stage speed?

Do you think the resistor in the 3B motor does the first stage or the one bolted to the housing? I guess one of them must be for the AC low speed fan (which I no longer need as I removed the wiring for it last time I was behind the dash..)

[Error404]

It's been a while since I looked at it, from memory you just need the resistor plate and add the big 60A fuse

[newsh]

Got the fan wiring diagram from S2 Central

[Error404]

ABY rad fan will fit with stock rad - just.
I think you might struggle with a thicker core.

PITA with those ****** fittings from 034

[newsh]

My 3B to RS2 project

Fan wiring





Another cracked knock sensor.





Sheared oil feed flange..

[newsh]

Got some work done on the coupe today.

My list of jobs is:
1/ Change rad to new alloy one from Vidar. Got the old leaky one removed.
Need to drill the brackets for the fan cowling.
Need to decide 3B fan (cowling rusty so needs blasting, painting, wiring needs sorting as it's been extended at some point in a horrible way)
Or ABY fan (cowling plastic) but will also need resistor pack and wiring mods which I don't really understand how to do. And will it clear the ABS pump, especially as the ali rad is thicker than stock.

Advice welcome on this subject.

2/ Fit new AN + braided turbo oil feed line from Terrybullwon. Got the old one off, end fittings were rusted, crimps actually split.
But the feed flange sheered off, crappy 034 aluminium part so have to wait for a new one.

3/ Fit new front knock sensor, was surprised to find this one split as well. Job done and wiring tidied up.

4/ Replace leaky steering rack with another second hand one. Not started this job yet, I know it's a world of pain.. wondering whether to just get the replacement rebuilt as I don't ever want to have to do it again.

5/ I think there are more jobs, like painting the sunroof panel, maybe the roof and the laquer is peeling on the bonnet.

6/ Oh Yeah.. Still need to fit the Andy Casey rear brake upgrade but still waiting for calipers to arrive from Dominator.

[andy10v]

Very nice! Good day for it if the weather was anything like here.

I am always tempted by bikes, but based on how I ride a jump bike on the road it would be a bad idea

[newsh]

Was out for about 7 hrs on this today