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Going from a 14b to a evo III 16g, will my o2 housing and gasket work?

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It's not the wastegate flapper that is the issue, it's due to the direction of exhaust flow take an extreme angle to exit the o2 housing via the wastegate port. That exit becomes a path of higher resistance than the tubine wheel whih is how you start to creep.

It is more common to creep when you have an upgraded exhaust that is very free flowing compared to stock.

Creepng numbers are different. You may only creep 10 psi, iv creeped to 30psi before (guess, it pegged my gauge)

So if you don't want to creep then you need to port the entry way to allow the exhaust to leave easier. It also helps to port the passage behind the flapper and remove all ridges from back there as well. You'll see a gray/white line where the exhaust is bouncing off the housing to exit. You want to make it so the exhaust doesn't bounce around and cause turbulence.

Porting behind he flapper makes no difference at all as the actuator only opens the gate at a 60* angle at most.

If you search waste gate porting you'll get he info on where and how to get it ported.



If you don't have the fuel to match the 20psi from that turbo hen you will hurt you motor.



The 16g doesn't wake up in it's efficiency range until around 20psi. I'm personally running 25psi and it's much harder than 20. I wouldn't go more than 25 however on the e316g.

of course you need to support it. :rolleyes: i think he knows that already.

he said fic 1050cc walbro 255 fpr, dont you think thats enough fuel? please read.

oh and do something for me. get your actuator, pull it and ull see why mhi turbos creep. not even a 30 degree angle, and yeah your right about the turbulence and all that stuff but that only 30 degree opening is the main problem not the flapper.

i weld a t25 actuator with the 16g braket and some modification and it let me run 10psi without creeping opening at a 65* or 70* angle. with my old 16g.
 
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