Aquamist and Pressure Pipes

[GandalfS6]

I need help!

I am busy installing a Aquamist Water Injection System on my car. I need to tap the water injection jet into a pressure pipe after the intercooler and as far away as possible from the throttle body. The ideal place would be in the pressure pipe in the cross member (in the opening in the photo below).

The pipe is made of 3mm hard plastic and I am worried about tapping the 7mm jet into plastic. So I thought that I should change the plastic pipe with a stainless steel pipe and ceramic coat it.

I took out the cross member last night, and it seems that Audi put the pipe into the cross member and then spot welded it!

I have 2 options - 1) to tap into the plastic - will it hold at 1.8 bar boost and can I perhaps reinforce it somehow. 2) Cut the pressure pipe out of the cross member, fit a stainless pipe and try to put it together again. This looks rather difficult. Any BTDT's?

Can you clever guys please give me advice on this!

[S2central.net]

I need help!

I am busy installing a Aquamist Water Injection System on my car. I need to tap the water injection jet into a pressure pipe after the intercooler and as far away as possible from the throttle body. The ideal place would be in the pressure pipe in the cross member (in the opening in the photo below).

The pipe is made of 3mm hard plastic and I am worried about tapping the 7mm jet into plastic. So I thought that I should change the plastic pipe with a stainless steel pipe and ceramic coat it.

I took out the cross member last night, and it seems that Audi put the pipe into the cross member and then spot welded it!

I have 2 options - 1) to tap into the plastic - will it hold at 1.8 bar boost and can I perhaps reinforce it somehow. 2) Cut the pressure pipe out of the cross member, fit a stainless pipe and try to put it together again. This looks rather difficult. Any BTDT's?

Can you clever guys please give me advice on this!

What about into the metal body of the exit hose on the intercooler itself ?

In saying that, I'd imagine that with the right fittings it would be possible to fit it into the plastic pressure pipe on top of the engine. It would be a shame to downgrade your P.Pipe to a metal one for this !


Paul

[Martynf]

I have a front cross member with a metal pipe inside available if you want to swap? It's silver too :-)