Hello, want to run a reservoir for some added pow.... per-say.

But! I realize I'm having issues:

I have 3 of four ports, coolant tank,radiator port, lower radiator hose.
I need one for the highest flow point on the WATER-NECK and I cannot find anywhere on the web a tapped upper water neck for a S5 TII (JDM doesn't matter...)

Besides rotary works full setup of neck/tank, (still taps into lower rad line unless you tap the water pump housing it self.)

Is my best bet buying a cast aluminum neck for a S5 and tapping it for my reservoir?

Or can anyone offer me some advice besides..tapping lower housing and water pump housing.

 

This looks like English...but!

 

This is English and it will explain the following: Your just trying to Increase your post count while making no attempt to follow the guidelines of the forum rules. (Period)

I Have concluded my own question by talking to locals for help, and found out their is no product available, and choose one of the two solutions:
1. Plastic weld stock S5 neck or aftermarket aluminum neck.
2. Custom/ rotaryworks product or similar.

I Will leave topic open for others.

 

Caught me red handed.
Per-say.

 

I'm wondering why you see the need for tapping for a coolant reservoir,when the S5 does not have it on the thermo neck.
Besides,How are you going to just tap into the Thermo neck without controlling the Pressure?.That is what the rad cap was for,and why the hose was at the cap.to let the coolant out into overflow then back in under vacuum on cool down.
It can't just lead to an overflow,it will be under 13 PSI and it won't suck it back in on cool down,as it is Equalized pressure now,.
You really need to rethink this.

 

You could just swap in an S4 radiator and overflow bottle. I don't own an S5 so I don't know if this is a direct bolt on or not, seems like it would be.

I'm with misterstyx though. What you want to attempt to do won't work. The coolant will just blow through your tapped line and overflow the overflow bottle