Intercooler plumbing

[M@rk]

Hi as some of you know i want to diy my intercooler but i would like to know what size and what kind of pipe to use?

Use Search function

I have notice people say use the factory spec 50 mm size but why?? its not stock any more its boosting more so will it still make a huge diff in turbo lag?

I am thinking 63 mm?

and

is stainless steel or mild to heavy?

[MeanTdi]

Some links I found:

http://www.vwclub.co.za/phpbb3/viewtopi ... &p=1168540

http://www.vwclub.co.za/phpbb3/viewtopi ... &p=1127142

http://www.vwclub.co.za/phpbb3/viewtopi ... 94&t=74597

[M@rk]

Some links I found:

http://www.vwclub.co.za/phpbb3/viewtopi ... &p=1168540

http://www.vwclub.co.za/phpbb3/viewtopi ... &p=1127142

http://www.vwclub.co.za/phpbb3/viewtopi ... 94&t=74597

Thanks Marco

btw i did use the search function and also read 2 of the above links

Ok so mild steel tend to rust after a few years

[M@rk]

edited: Information removed.

??

[panic-mechanic]

Mild steel plumbing will not rust. There is always oil present in the intake side of a turbo due to some seepage from the bearings. There is nothing wrong with using thin tube mild steel for intake side plumbing. I have done it lots of times. Just either paint or powder coat the outside once it's made.
The size is a long discussion and there really is only one way to find out. That way is
A) make it in 50 mm. Run it on the dyno
B) make it in 63 mm. Run it on the same dyno
C) compare the two and decide which one you want.

[M@rk]

Thanks panic

If i go with mild steel then ill make sure i give it a few cans of spray maybe something that protects it from rust.

[MeanTdi]

Thanks panic

If i go with mild steel then ill make sure i give it a few cans of spray maybe something that protects it from rust.

Maybe try quote to powder coat the outers?

[PoLonY]

Mild steel plumbing will not rust. There is always oil present in the intake side of a turbo due to some seepage from the bearings. There is nothing wrong with using thin tube mild steel for intake side plumbing. I have done it lots of times. Just either paint or powder coat the outside once it's made.
The size is a long discussion and there really is only one way to find out. That way is
A) make it in 50 mm. Run it on the dyno
B) make it in 63 mm. Run it on the same dyno
C) compare the two and decide which one you want.

+1

using mild steel currently on my volvo and no rust on the inside, and i barely use the car...outside will rust yes but I used normal spraypaint and it's worked perfectly fine

[M@rk]

Thanks panic

If i go with mild steel then ill make sure i give it a few cans of spray maybe something that protects it from rust.

Maybe try quote to powder coat the outers?

That will end up 2 costly could just buy stainless steel from the start.

but good idea

[panic-mechanic]

Powder coat is actually quite cheap. Much much less than using stianless.

[boost'd]

Stainless is cheap. Costs around 700 to do a fmic job

[panic-mechanic]

I suppose we are not talking about the same way of doing stainless. If you buy dairy bends and polish ot after it ain't gonna come to R700 thats for sure.

[boost'd]

I did all dairy bends in 63mm. Granted I didn't polish it. It's around 70 bucks for a T304 stainless dairy 63mm in durbs

[Kums]

I did all dairy bends in 63mm. Granted I didn't polish it. It's around 70 bucks for a T304 stainless dairy 63mm in durbs

fact durban rocks..

[sean919]

Mild steel is right - can bend easily without constricting much. Looks neat as...