boost issue, help please!

[ANVIL]

my car is running pretty good except for a problem i have with the boost. right now i have a blitz ebc and all the boost settings are set at 0. it gets to 10lbs at around 4800 @wot and keeps going up from there (its gotten to 13 @ around 5.5k). any ideas on what is wrong and what i can do to fix it?

[uber95]

Unhook the EBC. Hook up a MBC that you know works and check your wastegate for functionality. You have an external wastegate? What turbo? If the wastegate has a problem you'll know.

[ANVIL]

Unhook the EBC. Hook up a MBC that you know works and check your wastegate for functionality. You have an external wastegate? What turbo? If the wastegate has a problem you'll know.

its just the stock turbo.

[Coolwhip]

Like he said, disconnect the boost controller, and watch a boost gauge to see how it operates without the EBC.

What other exhaust side mods do you have? Just wondering

[240z4u]

Turns out I had a massive boost/vac leak from my junkass turbo XS blowoff valve.

I pulled it and capped the hole and now boost is rock solid.

I also gained another 5psi of vac. at idle.

Evan

[ANVIL]

i have a 3" turboback exhaust. what if i disconnect the ebc, and run the wastegate vacuum straight to the pipe where the other vacuum line is, would that work? right now the boost controller out hose is going to the wastegate, and the in line is coming from my ic pipe.

[ANVIL]

this is my first turbo car ive ever had but shouldnt the turbo get to whatever boost im trying to run like around 4.5krpm then hold all the way up?

[Coolwhip]

the turbo will hit its full boost than tapper off (down) as it reaches redline

[Coolwhip]

looks like i need to dump that Turbo XS BOV i have sitting on the shelf.