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racist-bigot-sexist-homophob
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Now I don't know for sure but I say yes unless the turbo has some sort of built in restrictor.
 

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if theres no built in restrictor, it would be a good idea.....just for added insurance. The t25 is just like any other turbo and it wont like the high pressure (60 psi) of the stock honda oiling system.
 

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Acura TL-P
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^Thats true, your stock pressure should be around 70psi over 3k rpm.
I use WOT because at WOT you are usually above (or will be getting there soon) 3k RPM. At WOT your pressure should go to 70-80 and for the most part stay there. WOT=RPMs is what I'm saying in the scenario. I am not saying it's based off actual throttle position.
 

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4G93 Turbo
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2011 VW Jetta Tdi
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Steathmode has one that works with their kits. Its like 12 bucks. Pick that up and get a pressure gauge. Adjust the restrictor so that the pressure gauge shows 19-20 psi at idle and 32psi max and you should be set.
 

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94 civic dx
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woooh! i was about to ask this question myself. :TU:
 

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4G93 Turbo
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Thanks man your my hero.
 

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FAMILY MEMBER #316
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so how do you know how much oil pressure is actually getting to the turbo after the restricter? and how much minimum oil pressure is need for a turbo's CHRA to be properly lubricrated?

/threadjack
 

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2011 VW Jetta Tdi
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Yep, like eriffith45 said, hook up a pressure gauge after the restrictor to see what kind of pressure youre getting with the restrictor wide open. At idle, the minimum pressure the turbo should see is 19-20psi and under any other circumstances it shouldnt ever see any higher than 32psi. Those numbers are pretty standard from what I know. It does, however, depend on what type of bearings the turbo uses. Different types require different amounts of oil pressure to operate in the optimum functionality range.
 
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