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Forced Induction Turbochargers and Superchargers..Got Boost?

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Old 05-19-2017, 05:51 AM   #1
algy
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Default Single Turbo Oil Pressure

Just curious what the oil pressure should be at for our VQ35 engines? My 2006 single turbo nonrevup DE is sitting at roughly 18-20. At start up its at 60-70 and cruising its at 30-45.

Why does that seem low to me? Possibly it could be the oil weight i am using? If so what is everyone using on their forced induction VQ35DE? I have roughly 110k miles on the vehicle if that helps and live in Dallas Texas

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Old 05-19-2017, 06:40 AM   #2
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That seems right. I'll check mine when I get home if I remember.
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Old 05-19-2017, 06:42 AM   #3
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Really?? For some reason I thought that was low. What oil are you using and weight?
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Old 05-19-2017, 06:58 AM   #4
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Cheap full synthetic 10-30
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Old 05-19-2017, 07:00 AM   #5
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I think I'm using castrol full synthetic 10-30, but really I'll use any cheap full synthetic.
Fram tough guard filter iirc
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Old 05-19-2017, 07:00 AM   #6
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For all the stock engines with 5W-30 it is >14psi at idle (650 rpm) and >43psi at 2000 rpm in neutral or park.
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Old 05-19-2017, 10:19 AM   #7
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So what if the engine is not stock? As in turbos, supercharger, etc. Nothing like a built motor though.
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Old 05-19-2017, 12:42 PM   #8
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Quote:
Originally Posted by algy View Post
So what if the engine is not stock? As in turbos, supercharger, etc. Nothing like a built motor though.
As long as the bearing clearances are stock thoes should be the recommended numbers. Oil cooler shouldn't really change the pressure. It would probably increase it slightly if the cooler is before the sensor. As long as the piping to the turbo(s) is restricted enough it shouldn't be stealing too much flow to drop the oil pressure.
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Old 05-27-2017, 02:42 PM   #9
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Also what oil do you guys recommend? Texas weather and 113k miles on the vehicle
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