Adjustable Wastegate Actuators; worth the money?

[EM.TT]

I read that the OEM actuators start to open around 7 or 8 psi, and I was wondering if it's worth it to put adjustable's on stock turbos or do they not make that much of difference?

[Z31toZ32]

what are you looking to do, control boost?

i believe the oem actuator is pre-loaded to open the waste gates at about 6psi, which is also known as safety boost. you can get boost jets, a manual boost controller (crappy) or an EBC to control the actuator to hold the gates closed longer to boost to your desired level. correct me if i am wrong here, but there is no need to replace the actuator unless you are experiencing some nasty boost creep, which to my knowledge is not common on this car.

[EM.TT]

No, im going to get an EBC and a tune! I was just wondering if it would be worth it to get those so that once I start boosting the'll stay shut all the way to 15 psi, instead of creeping open at 6.

I guess i was just wondering if the waste gates opening a little bit at 6 psi is something thats annoying enough to upgrade? Ive never had my car past 5 psi because of a bad turbo so I don't really know .And I thought it wouldn't be a bad time since the engine is out?

[NolimitZ32]

If they are working correctly they should not creep open because the EBC Solenoid will create a pulse in the pressure instead of a steady push which is where duty cycle comes into play. I ran my stockers to 23psi steady boost (which is probably the reason one of them pooped the coolant seal out of the cartridge).

[EM.TT]

Oh! Never mind lol, Ill pass on those then. What mods did you have to get 23 psi out of them?!

[TTkickedin]

I was under the assumption that the most boost the stock turbos could handle was 14.7psi...I confused...

[EM.TT]

IIRC thats the most you can safely run, at least thats what everybody says. I could see you hitting those numbers on a few dyno runs but I don't think I would want to do that daily!

[NolimitZ32]

14.7 = Safely
23 = KABOOM

no mods, just a AVCR and an overzealous boost knob hand along with a heavy foot.

[SLE-PR]

Hey Guys,
I am checking over my "built" engine for my TT before I put it in and it has (GT800R's) 2871R turbos on it. I noticed when I removed the adjustable linkage arm from the waste gate, that the gate is sticky in there so I took the down pipes off and did a bit of grinding on the removable partition between waste gate side and exhaust side to free it up. I noticed that both linkage rods were loose and didnt seemed to be timed properly.
MY QUESTION IS; Sitting on the engine stand, having the linkage rod off, how much tension should be on the waste gate....if you were to do a center of hole to center of pin on waste gate lever, in inches or millimeters or I have the equipment to a low pressure increase with a regulator, if that is a better way of doing it. I would like to get them into the ball park area to eliminate any malfunctions until I am able to get it tuned properly. This is not a stock engine, it should kick out 700+ RWHP with boost controller added on.

Thanks, Jim.