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I recommend a rounded tip cutter like the one I linked to. The Prussian blue is handy for determining exactly where the waste gate flap is making contact.
Porting just the hole didn't do the trick, you will need to do a lot of porting of hole and make a valley to the hole. What I ended up with was sort of like this but without the deep valley near the flange.
Last edited by mr steve; Nov 27, 2017 at 01:22 PM.
here is a pic of the car almost finished. it made around 250 on the virtual dyno at 15psi boost creeping. I will see what I can do now with the ebc hooked up...no more power but a lot more midrange
I still need to work on the undertray and get the slicks mounted for an event this weekend.
I got a steal on these rims and mounted some used SM7's on there for now to learn the car. Will probably go with A7's or the RS4's eventually depending on whether I really want to switch wheels at events.