Old Audi Quattros
Hello all my name is anthony and i am new to the forum and audis. i was just wondering what is the difference between the the UR, WR AND MB quattros and how can i tell the difference? thanks. 
-
-
Welcome...
Firstly - all that old shape is the UR quattro... Derived from German term meaning original ('Uber' from memory)
The WR was the first engine type fitted from 1980 onwards - 2144cc 5cyl engine with single camshaft ==> 10 Valves. Had a non water cooled turbo. The WR engined quattro also had first type of quattro gearbox with lockable center & rear differentials. Earliest of the WRs have quad square headlights and analog dashboard. Dunno when digidash came online. Bosch K-Jetronic fuelling and oddball Hitachi ECU for spark mgmt.
MB engine came circa 1987 with water cooled turbo and bigger intercooler. Some other engine refinements such as knock sensors and others that I cannot recall. Other UR gurus on here will know more. Also came with 1st TORSEN center differential - not lockable.
The RR engined quattro came last in 1989 with 2226cc 20V turbo engine and full Bosch Motronic system. Also bigger brakes including vented rears on this machine.
Hit the wikipedia for more...Paul Nugent
Webmaster http://S2central.net
Administrator http://S2forum.com
1994 S2 Coupe ABY - aka Project Lazarus
2001 A6 allroad 2.5TDi - family tank
2003 S4 Avant 4.2 V8 - daily burble
Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)
There are only 10 kinds of people that understand binary - those that do, and those that don't
-
Ur is ment as "original".Audi Quattro WRComment
Comment