Has anyone tried to construct something like this (obviously will look different for the TT):



This isolates the wastegate exhaust from the main, and should result in more accurate boost control and a CRAZY sound when you get on it.

What do the exhaust turbine housings look like? It seems that the cats bolt right up to it?

Any thoughts on how difficult this would be to incorporate into an exhaust setup, or is there just not enough room to do it?

Thx

 

Great thought, but it can't be done...well not easily anyway. Look at 2 o'clock and you can see the WG door. How are you gonna do that? Fortunately it is a really efficient design. That WG exhaust isn't going to interfere much with the exhaust of the turbine.


Photo credit: John D II

 

Vivis racing has an external wastegate conversion that does exactly what you want.

 

Wow, I didn't even know - thanks for posting the pic! Guess I'll go external then [adding to list].

With a stock wastegate that small, I'm confused that these cars don't get massive boost creep?

 

Only + if you want the sound

 

It doesn't take much with these relatively small (and efficient) turbos. Beyond 1 bar (1.2 for X50) they are really huffing and puffing!

 

Vivis? I can't find them (I'm always excited to find a new tuner). Got a link?

 

Sorry. Vivid Racing... see sidebar.