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Old 02-23-2018, 07:50 AM   #1
Booki
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Default TGV Delete - filling in the holes

Hey all,

Currently doing the TGV delete on my EJ255.

Do you guys fill the inner holes between the two throttle bodies or is it ok to leave them?

Might be a bit hard to get the tap and die set or put something in there that won't come out...
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Old 02-23-2018, 07:59 AM   #2
viper_crazy
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I left mine open. No ill effects that I can tell.

One way I thought of filling them though, is put a piece of tape on one end of the hole and stand the TGV on end, tape side down and fill the hole with an epoxy of some kind to the top. Let dry and cure and smooth out any bumps left behind. Just remember to remove the tape before installing back into the car.
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Old 02-23-2018, 10:02 AM   #3
gotboost02
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i threaded mine and screwed a bolt through it
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Old 02-23-2018, 10:13 AM   #4
viper_crazy
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Quote:
Originally Posted by gotboost02 View Post
i threaded mine and screwed a bolt through it
Musta been an extra long tap...
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Old 02-23-2018, 10:15 AM   #5
gotboost02
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Quote:
Originally Posted by viper_crazy View Post
Musta been an extra long tap...
reading > me
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Old 02-23-2018, 12:50 PM   #6
mrsaturn7085
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The original STI kit actually did have you thread and plug the inner holes with a long tap. It's a little hard to even call it a kit as it was just a bunch of threaded plugs and tapping instructions.

The earlier kit is a set of M10 and M12 threaded plugs. 4 of each part is required and you tap the TGV housing (internally) for M10 thread, and externally for M12 thread. TGV housings are gutted and plugs are installed with sealing epoxy - no machining required.

Kit 1
4 ea. 15027ZR000
4 ea. 15027ZR010

The later kit is a set of unfinished TGV housings (1 kit = 1 pair). The factory decided to do the smart thing and just pull them off the assembly line before the ports on the sides were drilled out.

Kit 2
1 ea. 141064S000
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Old 02-23-2018, 01:15 PM   #7
jamal
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Fine to just leave the inner holes open. Call it a balancing port.
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Old 02-23-2018, 10:17 PM   #8
viper_crazy
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Quote:
Originally Posted by jamal View Post
Fine to just leave the inner holes open. Call it a balancing port.
I called it an "Intake Pulse Width Modulation Bore" when I deleted my ones.
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