TGV block off for 2008-2014 Subaru WRX
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Replaces the TGV actuators on the intake plenums, works with stock TGV bodies on the wrx, sti is untested.
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The problem with the stock TGV unit in the WRX is that it disrupts airflow at high rpm, robbing a few hp in that rev range. It's a simple enough task to delete the system if you're already taking the intake manifold off. Smeedia posted a video on the process here:
https://www.youtube.com/watch?v=0JYF3ztZWRg
This block off plate replaces the TGV actuator that would open and close the valves if they were installed. The stock unit can be left in and is by all means a much simpler solution, but if you're doing away with the wiring as a whole then a block off plate is likely worth the ~2hrs of print time.
There are two files, one has a sunken portion to reuse the gasket on the stock actuator, and the other has a flat mating surface for those using only RTV. Regardless of which one you choose, I highly recomend using RTV for extra safety to avoid a vacuum leak.
Print in a high temp oil/gas resistant filament at high infil, maybe even full, with at least 8 top/bottom solid layers and 4 walls. I used PC-ABS v0, know that petg and abs alone are not up to this task, if I had it on hand I would've used PA12-CF.
Btw I should mention that this is an "emissions delete" component, it wouldn't be 50 state legal on a road registered car and is intended for off road and track use where applicable. Luckily I live somewhere I don't need to worry about that but make sure you know if you do.