Ur quattro engine conversion WR to 3B/RR information required

Colin Aitchison · 09-09-20, 05:58 AM

Hi all, not posted for a while but the bug is back, I am looking for any information or possible pitfalls in converting from WR engine in one of my Ur quattro's to a 20v 3B engine from any early S2, the 3B and RR are very alike, If anyone could give any advice I would be very great full.
Thanks in advance.

quattrodave · 10-09-20, 12:25 PM

Isn't Tonks the expert on this (try S2 forum) ?

I have an RR engine and all the ancilaries/wiring including ECU sat in my garage for 11 years awaiting the same conversion sometime !

Colin Aitchison · 10-09-20, 02:28 PM

Thanks, quattrodave.

Isimmo · 10-09-20, 03:56 PM

Quote:

Originally Posted by Colin Aitchison

Hi all, not posted for a while but the bug is back, I am looking for any information or possible pitfalls in converting from WR engine in one of my Ur quattro's to a 20v 3B engine from any early S2, the 3B and RR are very alike, If anyone could give any advice I would be very great full.
Thanks in advance.

We put an AAN 20vT into the Rallyrep and in the grand scheme of things it’s a fairly straight forward swap. If you keep the Ur box you’ll save having to cut the tunnel for a 6-speed. The wiring to the engine isn’t actually that much. With a 3B into a Ur it’s probably even less.

Upsides - performance, tuneability.
Downsides - it won’t sound the same.

My recommendation would be just get it in and running right. Worry about any performance upgrades later. The reason is, you can chase your tail fault finding and setting it up with hybrid turbos and remapping. Do that when you know the patient has accepted the organ.

Colin Aitchison · 10-09-20, 04:08 PM

Isimmo, thanks for the advice but I would not be doing any silly stuff with the engine, I do have another Ur on the road just now and had it for many years, I do like the way is sounds but now getting on in years now myself and looking for a Ur quattro looks the part and starts and drives closer to a normal car.

Isimmo · 10-09-20, 08:37 PM

Quote:

Originally Posted by Colin Aitchison

Isimmo, thanks for the advice but I would not be doing any silly stuff with the engine, I do have another Ur on the road just now and had it for many years, I do like the way is sounds but now getting on in years now myself and looking for a Ur quattro looks the part and starts and drives closer to a normal car.

Do you know the one thing I’d absolutely love to put into the rallyrep with the AAN engine?

Becoming an old fart and enjoying our S3....

The S-tronic twin clutch gearbox.
Ian

slacky · 10-09-20, 10:53 PM

Quote:

Originally Posted by Isimmo

Do that when you know the patient has accepted the organ.

10-09-20, 12:25 PM	#2
quattrodave Grown up member Classic Audi Club Member Join Date: Dec 2010 Location: Bingley Posts: 634	Isn't Tonks the expert on this (try S2 forum) ? I have an RR engine and all the ancilaries/wiring including ECU sat in my garage for 11 years awaiting the same conversion sometime !

10-09-20, 02:28 PM	#3
Colin Aitchison Senior Member Classic Audi Club Member Join Date: Dec 2013 Location: Back home in Tillicoultry Posts: 1,308	Thanks, quattrodave.

10-09-20, 04:08 PM	#5
Colin Aitchison Senior Member Classic Audi Club Member Join Date: Dec 2013 Location: Back home in Tillicoultry Posts: 1,308	Isimmo, thanks for the advice but I would not be doing any silly stuff with the engine, I do have another Ur on the road just now and had it for many years, I do like the way is sounds but now getting on in years now myself and looking for a Ur quattro looks the part and starts and drives closer to a normal car.