Hose Sizes

[AudiS2Au]

I'm about to replace the standard intercooler with one of the big jobs martinjs, Mark H, etc have fitted.

Without a front entry intake manifold, my plumbing will have to be the same as that which martinjs has for now - the long route back to the standard IM

Can someone help me out (so I order the right sizes/adaptors) with what the hose diameter is for the following hoses

- Entry to intercooler from turbo (I guessed about 2" from last time I saw it)
- Exit from intercooler to plastic pipe leading to TB/ISV (I guessed about 2 1/2")

thanks in advance,

Jason

[martinjs]

Jason, the inlet and outlet of these big i/c's we have are 3", I think the turbo outlet is 51mm cant remember but its easy to measure, so you'll need a 51-63 reducing 90deg bend to fit the i/c inlet. I used a 63mm 90deg bend on the outlet so all the pipework going across the front of the engine is 63mm which joined ok to the main entry leading into the engine (which is 60mm). Suppose you could use a 63-60mm 90deg reducer on the ic outlet so it mates up perfectly.

HTH
martin

[martinjs]

What turbo etc are you running btw?

[AudiS2Au]

RS2 - I managed to fit the Samco hoses onto it with the existing intercooler but things will get interesting when I get back to change it

thanks - Jason

[AudiS2Au]

But this helps a lot - thanks - I think I have got the silicone hose sizes right, but for the reducing part, I think I am going to have to try and use some mild steel adaptors/reducers available from an exhaust shop where I am getting the mandrel bends for the rest of it. Hopefully there is enough room!