1983 Oldsmobile Cutlass Supreme Sedan LS Turbo Build

GroceryGetter83

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Sep 18, 2018
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GroceryGetter83 would it have been possible to have the return feed a little higher?

I think any higher and it won't drain back from the turbo. Usually people drain to the pan, but I thought this would work.
 
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Injectedcutty

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Nov 24, 2014
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I think any higher and it won't drain back from the turbo. Usually people drain to the pan, but I thought this would work.
It will work, you just need a 90° instead of a straight....
20181125_124621.jpg
 
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uneek1976

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Jul 24, 2009
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Sugar Grove IL/ Chicago
I think any higher and it won't drain back from the turbo. Usually people drain to the pan, but I thought this would work.

Ok, because I was thinking about going that exact route you took. But since I haven't done my front cover yet, where in the pan would the fitting be put?
 

GroceryGetter83

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81cutlass

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Feb 16, 2009
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Did you already tap that cover to pipe thread?

If you did you can get a -8 (or whatever size that is) to 3/8 NPT 90

OR, get a -8 to ORB (o ring boss) 90 which has straight cut threads and an o ring with a nut to adjust o ring squeeze. That allows you to put the fitting where ever you want and tighten the o ring. They are used in industrial hydraulics and are good to 2000+PSI so they are good here for return for sure.

1547048733002.png
 
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GroceryGetter83

LS Mafia
Supporting Member
Sep 18, 2018
676
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Tampa, Florida
Did you already tap that cover to pipe thread?

If you did you can get a -8 (or whatever size that is) to 3/8 NPT 90

OR, get a -8 to ORB (o ring boss) 90 which has straight cut threads and an o ring with a nut to adjust o ring squeeze. That allows you to put the fitting where ever you want and tighten the o ring. They are used in industrial hydraulics and are good to 2000+PSI so they are good here for return for sure.

View attachment 103426

The cover is tapped for 1/2" NPT. I will see if I can bend the 90* fitting I have to clear. I don't want to take the balancer off again if I don't have to. I will look into this fitting too. Thanks!
 
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