s5 turbo stock wastegate question

[TehMonkay]

Originally Posted by Boostmaniac

Omg, monkey please stop.

Your wastegate is working fine from what I have read, the problem you are having is the ported wastegate on top of a 6 port motor. Stock I'd say you are right on the money boost wise, but you may experience a fall off on peak boost higher in the rev range close to redline.... maybe, I am not certain on that though.

It comes down to this, that wastegate is venting to much exhaust, and with no controller, there is no way to stop it. Invest in a good boost controller (you can re-use them on multiple turbo / car setups.)

It'll keep the wastegate shut until it senses max boost, then slowly actuate to maintain the desired boost pressure, something you can't do with the stock turbo setup. Since it is ported, then you shouldn't experience any boost spike, but without a controller, you'll see less boost than you want.

I have two turbo's sitting outside. S4 and S5 if you want pics of the wastegates and the actuators. They either work or they don't 99 percent of the time.

Get yourself a controller, get boosting, and enjoy.

-Maniac

Like i said, the answer was too obvious for me to understand.

[Boostmaniac]

Originally Posted by TehMonkay

Like i said, the answer was too obvious for me to understand.

I wasn't trying to sound like I was bitching at you, sorry if I came off that way. I was really tired and wasn't really paying attention to what I wrote.

Also worth noting and something I forgot to add.

With a boost controller, it will keep the wastegate closed until desired boost pressure is achieved. The stock system just creeps to 10 (if you didn't port the wastegate that is). So the end result will be a fatter more useable powerband. You'll see quicker spool and a lower RPM positive pressure threshold.