[Es2] RS2/ES2 intake & exhaust source/fabrication

Matt twentyV matt_20v at yahoo.com
Fri Jan 23 11:38:19 PST 2009

I'm running a stock 200Q20V turbo intake boot/ hose.  With this you can't use the WGFV in the stock location as it interferes with the support upright.  I've used a very short length of pipe to move it below the boot.  Attaining full boost is very sensitive to this plumbing- a long hose caused me to lose boost.  It took me a while to figure this out- we temporarilly used a stiffer WG spring to restore full boost but that bugged me so I puzzled over it until eventually stumbling on this sensitivity.

The turbo outlet to intercooler (RS2) hose was sourced by 2Bennett, I'm not sure if it is a standard 200Q20V samco equivalent- it looks like it might be but YMMV.

Intercooler to intake (3B) is a custom metal pipe and the standard 200Q20V accordian hose.


--- On Fri, 1/23/09, Ben Swann <benswann at verizon.net> wrote:

> From: Ben Swann <benswann at verizon.net>
> Subject: [Es2] RS2/ES2 intake & exhaust source/fabrication
> To: es2 at audifans.com, quattro at audifans.com
> Date: Friday, January 23, 2009, 8:00 AM
> I'm looking for information on sourcing or fabricating
> the intake portion for Engine
> installed in '90 Coupe Quattro.  The engine is using
> RS2 turbo, RS2 intake Manifold and
> IA exhaust manifold.  The Stock RS2 intercooler with
> integrated pipe in core support is
> being used.
> Probably I will need to fabricate the intake pipes, but can
> likely use stock 3B or
> similar hose from MAF/Airbox - I have seen some nice turbo
> intake hoses from Neuspeed,
> etc, so looking for tried and true alternative that
> facilitate 3" clearance from front
> of turbo to core support vertical. 
> The turbo outlet to intercooler is 2" and likely can
> use a 22 deg. + a 45 deg. Section
> with overall length of about 12".  There is probably a
> stock hose that fit the Euro car.
> The plumbing going from intercooler out is 2.3" to
> throttle 3" and could resemble the 3B
> layout, but I might route around the firewall over to the
> passenger side fender well
> then around to the intercooler.
> Looking for BTDT suggestions, pictures, and flexible DIY
> tubing  for making convoluted
> custom intake plumbing.
> Exhaust solution will be addressed later - will likely be
> using an RS2 dual exhaust
> downpipe similar to the 3B setup.
> Ben
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