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PostPosted: Tue Mar 28, 2017 8:29 am 
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4 BBL ''Hyper-Pak''

Joined: Mon Nov 24, 2014 6:13 am
Posts: 39
Location: Pine bush newyork
Car Model*: 72 valiant
Hello,
I purchased a used Holset hx35. Is currently internally wastegated, and i would like to convert it to external wastegate for better control.
One of two ways to achieve this; i can change the exhaust housing to eliminate the internal, or purchase a block off plate to accomplish the same thing. I am not sure exactly how the other components will attach (wastegate and exhaust pipe).
$135 for the housing, or $35 for the block off plate.
Any thoughts?


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PostPosted: Tue Mar 28, 2017 9:12 am 
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Supercharged
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Joined: Thu Jan 27, 2005 8:32 pm
Posts: 7126
Location: SW Washington
Car Model*:
Unless this is a competitive race application (and I can tell it's not because you're not using a $2500 ball bearing turbo) I would save the money and use the internal wastegate with a lower pressure actuator.

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Joshua Skinner, formerly SrA US Air Force


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PostPosted: Tue Mar 28, 2017 10:58 am 
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4 BBL ''Hyper-Pak''

Joined: Mon Nov 24, 2014 6:13 am
Posts: 39
Location: Pine bush newyork
Car Model*: 72 valiant
Thanks,
Appreciate to speedy reply. Will search for what you suggest.
Hoping to find something starting with 5 psi, that i might creep up to 10 plus psi.
Russ


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PostPosted: Tue Mar 28, 2017 12:26 pm 
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EFI Slant 6
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Joined: Sat Sep 13, 2014 8:25 am
Posts: 374
Location: Springtucky OR
Car Model*:
I got a nice adjustable waste gate actuator from Kinugawa

It fits nice on the Holset - half way down this page:

http://www.slantsix.org/forum/viewtopic.php?t=56352&postdays=0&postorder=asc&start=75

Image

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--> Check out my FI Turbo build <--
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PostPosted: Tue Apr 04, 2017 6:00 pm 
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Turbo Slant 6
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Joined: Fri Apr 27, 2007 5:50 pm
Posts: 745
Car Model*:
hx35 is a lot of turbo for that little bit of boost. you could go much smaller and make i more responsive and still push what you are looking for. i doubt the hx is in its efficiency range at that low flow.


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