Hey, I was wondering what kind of intake/exhaust setups all you s4 turbo guys have? Also, how much boost are you seeing and is your wastegate ported?

 

Eazy question, my mods are in my sig, mods not in sig custom TID and APC Conical filter- plummbed to the brake ducts. to my knowlege I have a non-ported wastgate, I'm hitting 6-7psi in 1st, in 2nd 8-9, 3rd 9-10 10-11 psi in 4th and 9psi in 5th

 

3'' mp/dp from thunderfabrications
APC cone filter on the end of my stock TID (using old k2rd AFM adapter)

1st - .6 bar - 8 pounds
2nd- .7 bar - 9.5 pounds
3rd - .8 bar - 11.5 pounds
4th - . 85 bar - 12.5 pounds
5th - no thanks

yes I realize that those converstion from bar to pounds isn't precise, but my boost can change almost .5 pounds up or down depending on weather conditions, etc... so I just put up an avg of what I'm getting.

wastegate is obviously not ported, but EGT says I'm not running lean even into 4th I'm at a steady 800 degrees. Bung is right behind stock o2 sensor. I still don't like playing with fire, so I really don't many freeway pulls into 4th. I'll be pulling off the turbo soon and porting the begesus out of the wg. Hopefully I can have a s5 turbo/mannifold soon though.

 

3inch tid, hks mushroom filter, 2.5 turboback. 7,7,8,9,7 psi in each gear.

 

wow, these are a lot lower boost levels than I thought. I've got a full 3" RB exhaust, stock air box and I just ported my wastegate but I'm not sure what kind of boost I have yet due to some other problems. I'd like to be able to do the TID mod w/ cone intake but I thought that'd be too much for the s4 wastegate.. anyway, I'll post my results after I test it I guess.