1991 Audi 200 20v Turbo
Discussion
Whilst giving the car a service I noticed the intercooler to intake hose was split (in Audi circles this is called the Michelin man hose)
not good, as all those lovely pressurized air molecules were escaping and reducing that turbo oomph.
also not good as this hose is specific to the 1991 200 20v turbo, the only year Audi made this particular combination.
One end is 70mm ID and the other end is 60mm ID and its a flexible bellows which takes out the misalignment from intercooler to intake pipe. (around 25°)
So the hose isn't particularly readily available, you can buy aftermarket silicone hoses, but they are around $130.
I thought I can have a go with some cheaper silicone hoses from ebay for $20 and some stainless exhaust pipe pilfered from work.
My first attempt I tried to see if a straight section of pipe would work assuming the silicone bellows would take out the misalignment. The hose just popped right off.
I then got a bit of bend pipe from work around 25° angle (not sure of the bend radius) and this seemed to do the trick.
I just took it for a test drive and I'm not sure if that hose has always leaked whilst I've owned it, but now it bloody shifts! Its pretty terrifying actually, as the tires are a wee bit bald on the inside edges
I've just received a new set of tires, middle of the range Kumho Ecsta jobbies..now I just need to get them thrown on...
There may also be something off with the steering geometry and/or worn bushes as it seems to wander under acceleration and braking but I'll look into that once the tires are on.
not good, as all those lovely pressurized air molecules were escaping and reducing that turbo oomph.
also not good as this hose is specific to the 1991 200 20v turbo, the only year Audi made this particular combination.
One end is 70mm ID and the other end is 60mm ID and its a flexible bellows which takes out the misalignment from intercooler to intake pipe. (around 25°)
So the hose isn't particularly readily available, you can buy aftermarket silicone hoses, but they are around $130.
I thought I can have a go with some cheaper silicone hoses from ebay for $20 and some stainless exhaust pipe pilfered from work.
My first attempt I tried to see if a straight section of pipe would work assuming the silicone bellows would take out the misalignment. The hose just popped right off.
I then got a bit of bend pipe from work around 25° angle (not sure of the bend radius) and this seemed to do the trick.
I just took it for a test drive and I'm not sure if that hose has always leaked whilst I've owned it, but now it bloody shifts! Its pretty terrifying actually, as the tires are a wee bit bald on the inside edges
I've just received a new set of tires, middle of the range Kumho Ecsta jobbies..now I just need to get them thrown on...
There may also be something off with the steering geometry and/or worn bushes as it seems to wander under acceleration and braking but I'll look into that once the tires are on.
I love these, I had an Audi 100 back in the nineties and I always have a pang when I see them, mien was only the 2 litre 5 cyl but it moved fairly well, these were pretty light and fairly aerodynamic, felt liek I had arrived when I got it, only 2 and a bit grand and it had air con, I would call it a barge but they are actually quite dainty by modern standards, would have another.
Erwin1978 said:
Lovely car, and a 20V Turbo to the boot! Looking forward to updates. When properly set-up they should drive arrow straight and very comfortable. In a firm- but enjoyable German way, not wibblywabblywobbly US way...
I hope so, I owned a US domestic 'sports' car before the Audi and enjoyed it for a while but you could tell it did wibbble around corners, in fact it just slid. A light weight car (Ford Escort size) with a 5.0 V8 manual and RWD...
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