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Discussion Starter · #1 ·
I am seriously considering the purchase of a TO4 turbo along with the external wastegate. I've been studying the possibilities, and they are:
1. punching a hole on the exhaust maniflod and weld a tube that go to the wastegate
2. making a hole in the turbine housing near the flange
3. use a spacer between the exhaust manifold and the turbo
I have my doubts about the 3 options which are

Option 1.
I dont want to make a hole in my exhaust manifold and give way to possible cracks and thus loss of my unit. An it is not that good in terms of even distribution.

Option 2.
I like this one but dont know anyone who makes it and not sure if the turbo would still fit under there

Option 3.
refer to option 1 but in terms of the turbine housing (except for the last sentence)

What are you guys using?
or what would you like to use?

thanks
CarlosZXT
 

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> Option 1.
> I dont want to make a hole in my exhaust
> manifold and give way to possible cracks and
> thus loss of my unit. An it is not that good
> in terms of even distribution.

If welded correctly you should not have any problems with cracking. The cast manifold is plenty strong. The ideal place for the wastegate is were it enters the turbo.

> Option 2.
> I like this one but dont know anyone who
> makes it and not sure if the turbo would
> still fit under there

The only T04 requiring a shim would be the T04E. The t04B will fit fine with no modifications. Make sure you get a tangential turbine housing if your go to a full T4. You will have no worries of room for the turbo.

> Option 3.
> refer to option 1 but in terms of the
> turbine housing (except for the last
> sentence)

You need not drill a hole into the turbo, although turbonetics turbos do have the housing tapped for a wastegate. You should be able to T off from somewhere on your manifold.
 

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> I am seriously considering the purchase of a
> TO4 turbo along with the external wastegate.
> I've been studying the possibilities, and
> they are:
> 1. punching a hole on the exhaust maniflod
> and weld a tube that go to the wastegate
> 2. making a hole in the turbine housing near
> the flange
> 3. use a spacer between the exhaust manifold
> and the turbo
> I have my doubts about the 3 options which
> are

> Option 1.
> I dont want to make a hole in my exhaust
> manifold and give way to possible cracks and
> thus loss of my unit. An it is not that good
> in terms of even distribution.

> Option 2.
> I like this one but dont know anyone who
> makes it and not sure if the turbo would
> still fit under there

> Option 3.
> refer to option 1 but in terms of the
> turbine housing (except for the last
> sentence)

> What are you guys using?
> or what would you like to use?

> thanks
> CarlosZXT

hi carlos, did you get my price quotes for the turbo and wastegate last week

paul
 
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