changing a internal wastegate turbo into a external wastegate?
07-20-2005, 07:48 AM
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Re: changing a internal wastegate turbo into a external wastegate? (EK_GSR)
Hey! I finally know something.
It's done all the time though. As far as I know all you'd have to do would be weld the wastegate flapper shut, and remove that wastegate thingie, and use an external wastegated manifold and you're all gravy.
It's done all the time though. As far as I know all you'd have to do would be weld the wastegate flapper shut, and remove that wastegate thingie, and use an external wastegated manifold and you're all gravy.
07-20-2005, 08:44 AM
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Re: changing a internal wastegate turbo into a external wastegate? (300whpOrBust)
It depends on which kind of turbo you have. Some turbos have a wastegate flapper that is an integral part of the turbine housing. If so, the flapper must be welded shut and actuator removed.
Other turbos have a flapper that are not part of the turbine housing but simply bolt on as a separate piece. My turbo for example, came with an internal gate but because the flapper was a separate piece, I simply unbolted the flapper and actuator and used an external gate.
Either way, it's not that hard to switch.
Here are some pics of what I'm talking about. <--- can you tell I'm bored today? LoL.
Turbo with a flapper which is part of the turbine housing and must be welded shut: (my dream turbo the gt28rs!)
Here's one like mine, well, this is the turbo that I have, you can see that the flapper can be unbolted.
Other turbos have a flapper that are not part of the turbine housing but simply bolt on as a separate piece. My turbo for example, came with an internal gate but because the flapper was a separate piece, I simply unbolted the flapper and actuator and used an external gate.
Either way, it's not that hard to switch.
Here are some pics of what I'm talking about. <--- can you tell I'm bored today? LoL.
Turbo with a flapper which is part of the turbine housing and must be welded shut: (my dream turbo the gt28rs!)
Here's one like mine, well, this is the turbo that I have, you can see that the flapper can be unbolted.
07-20-2005, 10:22 AM
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Re: changing a internal wastegate turbo into a external wastegate? (EJ1 wilcox)
thax for the pic bro . but i'm kind of confused what does the flaper look like on the pic?
. but i'm kind of confused what does the flaper look like on the pic?
07-20-2005, 02:29 PM
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Re: changing a internal wastegate turbo into a external wastegate? (redlseg)
is this the flapper? and yes my shoe is up for sale if anyone is interested 
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07-20-2005, 06:11 PM
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Re: changing a internal wastegate turbo into a external wastegate? (redlseg)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redlseg »</TD></TR><TR><TD CLASS="quote">is that the flapper?</TD></TR></TABLE>
Yes.
Yes.
07-20-2005, 10:09 PM
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Re: changing a internal wastegate turbo into a external wastegate? (Pondus)
i have never scene an exhaust housing like that before! crazy how the 3 bolt flange is actually a seperate plate you bolt onto the housing.
mmm...gt28rs
i have the gt28r and i cant imaginea more responsive turbo!
07-20-2005, 10:31 PM
#10
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Re: changing a internal wastegate turbo into a external wastegate? (redlseg)
Its really quite simple. All i did on my wrx turbo was weld the flapper shut and weld a flange onto my hf manifold to fit the tial wastegate.
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