I been watching my gauge when playing and driving normal. it seems i might have a wastegate issue or dirverter valve

1st gear is about .6 bar
2nd gear is .8 for a a few secods then drops to .6 before redine.
3ed gear laggy but goes to .8 bar until about 4800-5000 rpms.
4th gear .8 bar if you not flying, say driving in traffic and start up a hill the gauge will climb .8 bar, fall off real quick then build .8 bar again

Ive also notice i get serging when driving normal. you will going normal and start up a small hit and it boost will "spike" then fall off real qick.. so it give you a jerking motion.

I found one compay that sale diverter valves, I think they are $250.00 and its suppse to fix this problem and ad more boost. Just wondering how much more boost they ad and if it safe.

also if there are other companys that make parts i should look for.

thanks
Shawn

 

Forge diverter valves used to be big with the VW/Audi guys.

A while ago, I was thinking back on my Supra days, and was wondering about the potential of an HKS or Greddy BOV with a recirculation kit on a cayenne TT. Im assuming that the cayennes have to run closed loop or risk stumbling during shifts due to the inaccurate air count.

 

They won't increase your boost, but they'll get rid of boost leaks. So, if you're losing boost due to a leak, they'll help you.

 

Is one brand better than the other.

i to have thought about a blow off valve, and my friend brand said i need open wastegates like the supra had lol...