12cm wastegate install

[clubcustoms]

Purchasing a 12cm wastegated exhaust housing and curious how to install the wastegate....My housing now doesnt have a wastegate....Is it just a fitting I have to tap in somewhere or what? I have a 1990 5spd non IC...

[skilletky]

you could drill and tap the compressor housing for the fitting , or run the hose to the intake side of the head, and put you a hose fitting in the factory drilled and tapped hole on the head if you don;t want to drill into the compressor housing.

[Ace]

Here's how I put an adjustable boost controller on the 12cm wastegate when I first got it installed:

http://stuff.is-a-geek.net/PhotoAlbum/1 ... TD_118.jpg

But it didn't even last a day, because it only took a couple test runs to figure out the I/C'd injectors don't flow enough fuel to even need a wastegate. Yours may well, tho.

[clubcustoms]

Thanks guys!!

[PRINCETON_JAKE]

I just put a 12cm wastgated housing on mine and didnt enen bother hooking up the waste gate, the max i see with my current settup is 30 psi. Is there a reason i should hook it up?

[clubcustoms]

id like to know that answer myself ...... Did you notice improvement witht the 12cm?

[PRINCETON_JAKE]

It made a world of difference compared to the 21cm that was on there. I can hold a steady 30 psi, before i was only at 20, I just picked up a 60mm compressor upgrade, but havent got it on yet.

[1STGENFARMBOY]

Jake please let me know how your compressor does im wanting to get one of those myself and other than my injectors we have alot of the same mods.i think it would be very comparable to mine.
thanks Darwin

[PRINCETON_JAKE]

I will if i dont forget, I'm hoping to have time this weekend to get the compressor on. Then i want to drive it for a while before i put in the bosch 190 injectors. I've been told by many not to waste my time on the injectors, but i got a good deal from a friend. If i dont like the injectors i'll send the stock ones in to get modified.