DIY Turbo Discussion greddy on a 1.8? homebrew kit?

What wastegate to use?

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Old 04-08-2008, 10:52 PM
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Default What wastegate to use?

So im running a t25/14b out of a 2nd gen talon. What is the factory psi on the wastegate? I've heard 9psi and read that its 4psi?....
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Old 04-09-2008, 09:53 AM
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I don't know what the stock actuator makes for boost but I'd imagine 10 minutes on a DSM forum would be enough to find out. If you want to spend some money for a bling bling part we make an actuator that can be set-up to run from 5-25 psi.
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Old 04-09-2008, 10:31 AM
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t25 is a Garrett part, 14B is a Mitsu part out of the 1st gen DSM. I think both were 9 psi actually.

Frank
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Old 04-09-2008, 02:18 PM
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So if I was to run a MBC inline is it not true that you can only turn it down to the wastegate psi and no lower?... I can't 9 psi... it might brake somehting.
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Old 04-09-2008, 02:51 PM
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I had a t25 from a eclipse on my crx. The stock wg was set at around 7-8 psi. The pressure varied depending on the exhaust setup.

You can thread the wastegate arm so it is adjustable. I have not done this myself though. Also, 9psi on that tiny turbo is not gonna churn out as much power as a larger turbo.
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Old 04-09-2008, 08:38 PM
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Originally Posted by LOOINEY
So if I was to run a MBC inline is it not true that you can only turn it down to the wastegate psi and no lower?... I can't 9 psi... it might brake somehting.
You cannot use a MBC or EBC to achieve lower pressure than the wastegate is set for.
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