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Converting Internal to External WG

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Old 12-08-2007, 08:07 AM
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Default Converting Internal to External WG

I'm assuing that this can be done, but wanted to see if this idea is feasible:

1) Weld up Internal WG flap in turbo.

2)I have cast manifolds, but have an old contact from an engineering company I used to work for that can weld a WG flange to my manifold.

3) Modify downpipes to accept WG dump.

What do you guys think? Am I completely nuts?
Old 12-08-2007, 11:06 AM
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yes, or you can also remove the flapper door and split the dp flange so the exhaust from the wg hole flows into an external wastegate
Old 12-08-2007, 11:21 AM
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I was thinking that as well, but how can I "seal" the wastegate dump from the turbine dump? Turbos in question are 3076r Garretts.
Old 12-08-2007, 02:23 PM
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depends on if the turbine housing outlets are sunk in (swimming pool) or if they are flat and flush with the flange mating surface.
Old 12-08-2007, 02:48 PM
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I have the 'swimming pool."
Old 12-11-2007, 12:09 PM
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Anybody else have any experience with this? The kit in question is my APS TT system on my C6.
Old 12-12-2007, 12:04 AM
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Originally Posted by FastBlackTA
I have the 'swimming pool."
then find a place to drill and attach wg's to the log manifolds. since your turbo outlet is sunken in, you'd have to weld a divider in to seperate the WG gas outlet from the turbine outlet.. not worth it. end of story.

Why do you want external wg's btw?



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