paintballerr78

iTrader: (4)

I have a tial 38mm wategate and it has a 14.5lb spring in it. Now before it would only go to 14 when operating just on wastegate. I disconnected my boost controller now my wastegate will still go to 22-24lbs without the boost controller even hooked up. What could be my problem

Dezod

You could have the vac sources hooked up wrong. Please post a pic of them.

Could have poor manifold boost control and this could be creep. Post pics of manifold.

n0xid

+1 for pics, easy for people to hook them up wrong. Without boost controller is there still a vacuum source/boost source going to the WG at all?

BLAZIN07SS

iTrader: (7)

check for any blockages/tears/leaks in the vacuum lines

paintballerr78

iTrader: (4)

The vacuum lines havent been touched since i first installed the kit so it shouldnt have change ill get a picture today when i get free time.

n0xid

Well if there is no boost controller then the pressures have changed. If you want just the spring set psi (14.5) with no controller I believe you would just want a vacuum line going to the bottom fitting, nothing attached to the top. Then a line to top with controller on it for a different psi then the spring.

Or a leak as other said.

BLAZIN07SS

iTrader: (7)

Exactly, you never see a tial wastegate fail. The problem has to lie in the vacuum lines. The wastegate isn't seeing full manifold pressure and keeps increasing boost

05Slowline

iTrader: (2)

prob hooked up wrong, you say the vac lines haven't been touched, but you would've had to touch them to pull the bc out of the loop

Dezod

Top port of WG on TiAL gets left to atmosphere. Side port gets a boost source. End of story for connection.

05Slowline

iTrader: (2)

Unless you have a zzp regulator style mbc ^_^

paintballerr78

iTrader: (4)

I have all the lines hooked up fine..And it has nothing to do with the boost controller i had it all the way down and it still was going to 22-24 ill take pictures when i get back from work of how the lines are all hooked up and see if anyone seeings anything...did a boost leak test and everything held on with no leaks iil replace all vacuum lines within the next week. Could the spring of became stronger from all the heat or is that impossible

Dezod

Post pics and let's go from there

FasterIsBetter

Are you sure your boost controller isn't hooked up backwards? That could cause this issue. Try unplugging the top port on the wastegate and seeing if the boost drops. You should then be at the boost your wastegate spring is rated for.

Also try running a new line from the boost source to the bottom port on the wastegate
with temporary routing to see if that actually is

FasterIsBetter

The issue.

terry11

iTrader: (6)

Op is contradicting himself. He said before there was no boost controller in line then a few posts up he said even with it turned all the way down it still makes 22-24 psi. This means either he doesn't know which way is closed/open on the mbc, because 24 psi would be about the max he could get out of a 1 bar spring with a fully closed mbc, or there is a pin hole in his line somewhere.
Op run a new vacuum line to the bottom port like others stated leave top open to atmosphere. If your not at 14 psi then you have diaphragm issues or your spring is rated for more than what you think it is. Check the colors if it comes to that. Good luck

paintballerr78

iTrader: (4)

I stated at one time i had a boost controller on then i took it off to see if it was the boost controller causing the issue or the wastegate. I never had the top port of the wastegate connected to anything knowning that port is not used. I pulled apart the wastegate and took the spring out and put air through it and there was no leaks it was sealed fine.

terry11

iTrader: (6)

Well if you did that and you have a new vacuum line coming straight from the intake manifold to the bottom port then there is only 1 thing it could be. You have a stronger spring than you think

05Slowline

iTrader: (2)

did you have it off at all too, if it's the mvs you can have the one piece that goes between the manifold and wastegate upside down which can cause it not to open.

paintballerr78

iTrader: (4)

The way i have it is i still have that 3 port stock solenoid or whatever it is i have a line coming from the manifold to that port then a line coming from the turbo to the one end of the solenoid then a line coming from the bottom wastegate port to that solenoid. Ill get pictures when im home on friday

BLAZIN07SS

iTrader: (7)

ditch that solenoid. if you have a line coming off the turbo, put that directly to the wastegate. can't get anymore direct then that

Mindrot

iTrader: (1)

I only have vacuum hooked up to the bottom nipple on the Wastegate to run off the spring. I'd imagine it would be the same with an LSJ? I'm on the ZZP kit though.

rcarr0327

iTrader: (1)

pictars.

and i also only have 1 vacuum line going to the bottom of the tial and top left to atmosphere

terry11

iTrader: (6)

If your running external why are you going to that solenied? I am asking because i'm not familiar with the lnf's. If you were still on the k04 with electronic control I would see why you would route it that way, but since your not you could run it straight from the fitting on the turbo to the wastegate port

Superbalt06

iTrader: (6)

38mm is a pretty small wastegate. To run low boost like that on a decent size turbo you're diverting a lot of air. The wastegate probably can't keep up. Big wastegate for low boost small wastegate for high boost.

05Slowline

iTrader: (2)

not really