civictypenos

is there a way that i can turn this down,its on a z6 and id like to turn it down for street driving and gas.will a electronic boost controller turn down a internal wastegate?id like to run 6-8 on the strret daily.

beepy

Have you ran the car yet?

I have never heard of a stock DSM wastegate actuator producing 12 PSI. Most of them are "rated" at 12 PSI because that is the pressure needed to fully actuate the wastegate, but usually they only have to be cracked open to effectively limit boost.

Even the big DSM 16G only made 8 PSI.

Sinner

could be a leak around the wastegate, can you change the length of the wastegate actuator arm? If so thats how you can raise/lower boost through the wastegate.

Nick

Gizmo6969

ya the stcok wastegate for that turbo is 8 psi. as stated above check for a leak or dmg around the wastegate area.

civictypenos

it hits 12 perfectly,its from a 95 talon.it did 12 psi in the talon also.

Bailhatch

One way could be; hook up a spring to actuator arm and preload it until you get your desired lower boost level.

That seems weird you are getting so much boost from it. Don't most DSMs have like a 8psi WG and use a solinoid valve to regulate it 12 or whatever? Maybe the compressor housing is clocked enough past stock to preload the WG shut a little more than normal? Might want to get a snapring plier and see if you can take some tension off it by rotating the compresor cover a little bit.

civictypenos

the actuator ar is lined up like its suppose to be,im using vacuum line off the turbo right to the wastegate,id love to get it lower.

can someone wih the same wastegate confirm the 8 psi,i always thought it was 12 factory.

beepy

Maybe you have an actuator that was modified. Get another one, they sell for a dime a dozen on Ebay.

T-RO

I'm running a t25 on my z6 also. Its rated at 8psi on NON-Mitsu cars (12 on Mitsu cause of a solenoid). Mine however spikes to 11psi consistantly but drops back down to 8 again.

civictypenos

we are using a hf manifold with it,do you think the flow of the manifold is making it spike?