HELP!!!! R33/34 turbo

[silver gts-t]

im putting a 33 turbo on a 32

ive got a flange off a r34 and in has a hole in the middle, look like some sort of vacuum.

anyways the rb20 dosnt have one, and ive been driving round all morning looking for someone that will weld alloy....

no luck

im thinking i shouldnt leave it open to atmo so should i hammer a lil bolt in there??

what should i do?

[Bass Junky]

Tap and it screw a bolt into it.

It's a pressure port for a boost signal.

[silver gts-t]

that wat i was going to do, but dont have a tap set till after 6pm too late

it dosnt have to be air tight does it?????

this is what ive done with a self taper

its tight, will it do the job???

[caminperth]

As long as it doesn't leak it's fine. Put some silicone or something on it if you're worried..