3 port fluttering at target boost

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Mar 21, 2016 | 06:37 PM

#31

kaj

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From: Fresno, CA

Quote:

Originally Posted by Ians06

May I ask how you have it plumbed? I just tuned my 3 port with an EWG and had a similar issue. There are a couple different ways to hook up the plumbing to make it work. Also Duty cycle is referring to how fast the valve opens and closes per second in a sense. the valve is either on or off, there is no way to hold the valve open at say 30%. Its either open or closed. Just a matter of how fast its opening and closing to acheive your boost levels. I had to change my wastegate spring and some plumbing but mine works perfect now and no fluttering noise at all.

It can only be run one way. My problem was 30psi on an 8psi WGA.

Mar 25, 2016 | 06:45 PM

#32

nissanfanatic

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From: Gainesville, Florida

Quote:

Originally Posted by kaj

It can only be run one way. My problem was 30psi on an 8psi WGA.

So did you end up trying a "crushed" stock actuator? Would be interested to see how you did this.

Mar 25, 2016 | 07:47 PM

#33

kaj

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From: Fresno, CA

Quote:

Originally Posted by nissanfanatic

So did you end up trying a "crushed" stock actuator? Would be interested to see how you did this.

No, but FP's look like a crushed, OEM WGA.

Interested in how i did what?

Mar 26, 2016 | 04:55 AM

#34

nissanfanatic

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Quote:

Originally Posted by kaj

No, but FP's look like a crushed, OEM WGA.

Interested in how i did what?

If you had crushed your stock actuator, I was interested in how you did so.

Mar 26, 2016 | 09:41 AM

#35

kaj

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From: Fresno, CA

Quote:

Originally Posted by nissanfanatic

If you had crushed your stock actuator, I was interested in how you did so.

Oh, gotcha. Maybe a large c-clamp?

Mar 26, 2016 | 12:11 PM

#36

nissanfanatic

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From: Gainesville, Florida

Quote:

Originally Posted by kaj

Oh, gotcha. Maybe a large c-clamp?

I'm a chicken.lol

If I get another 8 turbo with an actuator I'll give it a shot. Otherwise I'll probably just upgrade to a 9 turbo w/aftermarket actuator.

....

In other news, I found this on a VW forum.

Mar 26, 2016 | 01:33 PM

#37

kaj

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From: Fresno, CA

I've done the helper spring (on a previous build). Not strong enough and doesn't like the heat.

Last edited by kaj; Mar 27, 2016 at 10:22 AM.

Mar 27, 2016 | 06:24 AM

#38

3gturbo

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From: Charlotte

too much timing will also make the turbo spool up faster and sooner. With the new turbo your probably going to want to bring the timing down a bit to smooth out the torque curve.