It is possible to convert a fwd Audi 80 or 5+5 to quattro but you will need all this to do it properly, by the way it is not a BOLT on affair
Front Anti-rollbar
Front Anti-rollbar drop links
Front subframe
Brake proportioning valve and mounting bracket
Exhaust Manifold
Exhaust downpipe
quattro Gearbox
Gearshifter mechanism
Gearshifter boot, lever and knob
Clutch assembly
Pedal box
Hydrolic clutch assembly
Propshaft/tailshaft assembly
Front driveshafts
Front-to-rear brake line
Handbrake lever and boot
Center exhaust box
Rear exhaust box
Underbody heatshields
Rear subframe
Rear Differential assembly
Rear driveshafts
Rear calipers
Rear disks
Rear Strut assemblies
Handbrake cables
Brakeline T piece
Rear brake hoses
Rear screen (quattro script in heater element)
Rear side windows (quattro decals)
Petrol tank
Trunk / Boot carpets
Cabin carpets, front and rear
Fuel accumulator
Fuel pump and fuel pipe protection covers
4 new wheels/alloys as quattro's are 4x108 stud pattern
Now you also need the lower front bulkhead assembly from a quattro. The ENTIRE floorpan from the quattro. You also need the bootfloor from a quattro. Plus the rear inner wheel arches with the correct upper strut mount locations. From a quattro.
So if you can aquire all this parts you're also going to need access to some sort of frame rebuilding jig, as half the bodyshell has to be cut out.
Strip pretty much everything off the 80 or 5+5. Cut out the lower front bulkhead, the floor pan, and the trunk floor. And the rear inner wheel arches.
Weld in all the replacement parts. Repaint, and then all you have to do is to re-assemble the entire car.............
Also if you want to go 5 cylinder 10v or 20v you will need to cut the engine mounts out of the quattro, as the 5 cylinder doesnt bolt to the subframe like the 4 cylinder does.
Like I said its possible, I thought long and hard about doing it to mine when i was in the UK, even had a damaged 90 quattro lined up, but in the end i decided my Audi 80 was to good to cut up, you would be better of trying to find a type 85 Audi 90 quattro and putting the small 80 or 5+5 bumpers on it,
There was a 1985 Audi 90 quattro on ebay a while ago, jap import,red,5cylinder it didnt sell so maybe still available??
Hope that helps
Ian
2.0L 16v Audi 80 - Project
3.0L 30v Audi A6 quattro - Daily
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