anyone have any info.....what is the internal wastegate set at?...ive been researching for around 4 hours and cant find any info....anyone know anything about this turbo?

 

Internal
An internal wastegate is an integral part of the turbine housing. The wastegate actuator is commonly attached to the compressor housing with a metal bracket. A flapper valve is generally used by internal wastegates. Internal wastegates are often used because they are cheaper to manufacture but are not always ideal when trying to make big power. Often the case an internal wastegate that is too small will cause boost creep or boost oscillation which can be seen as a wavy or inconsistent power curve..

from wikipedia.

also, the problem with some kits, like the greddy kit, is the wastegate can get stuck open and...BOOM!

[edit] External
An external wastegate is a separate self-contained mechanism typically used with turbochargers that do not have internal wastegates. An external wastegate requires a specially constructed turbo manifold with a dedicated runner going to the wastegate. The external wastegate may be part of the exhaust housing itself. External wastegates are commonly used for regulating boost levels more precisely than internal wastegates in high power applications, where high boost levels can be achieved. External wastegates can be much larger since there is no constraint of integrating the valve or spring into the turbocharger and turbine housing. It is possible to use an external wastegate with an internally gated turbocharger, though this generally involves welding the internal wastegate shut to avoid unwanted leaks.

External wastegates generally use a valve similar to the poppet valve found in the cylinder head. However they are controlled by pneumatics rather than a camshaft and open in the opposite direction. External wastegates can also use a butterfly valve, though that is far more rare.

also from wikipedia.

 

i know the difference between internal and external....i meant what psi is it set at?

 

Hahn typically supports DSM turbo upgrades. 90% of DSM turbos that are internally gated run with 14psi springs, though you can choose to customize it. Either way, it's too much for a tC. The 10.5mm exhaust housing is a little much for a 16G, and you will notice more lag than a standard big 16G. You could weld the flapper shut on the exhaust housing, then run an external wastegate at your desired boost level. Hope that helps!

Call hahn if you want to be sure!

 

preciate it joe

 

Anytime.