Size of the ZPIracing Oil Return Line
08-24-2006, 08:00 AM
#2
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Scion Justice League of America
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Join Date: Apr 2005
Location: Portland, Oregon
Posts: 5,594
TADA I Believe it's -10
Originally Posted by ZPI
Oil pressure feeding a turbo is not biggest problem as to why people blow the seals. A lot of time when you add a resistor or they use small hole fittings this actually increase the oil pressure it just lowers the volume. The key is to mate it with the right size return line.
Most people use a small oil return line and the oil can not drain quick enough. It is pressure coming in a gravity taking it out. IF you use a -4 line feeding it you need to use a -10 to drain if you use this you will never have a problem of over oiling the turbo
Most people use a small oil return line and the oil can not drain quick enough. It is pressure coming in a gravity taking it out. IF you use a -4 line feeding it you need to use a -10 to drain if you use this you will never have a problem of over oiling the turbo
08-24-2006, 12:52 PM
#4
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Join Date: Jan 2006
Posts: 584
Well the return line on my Stage 0 is a 3/4 ID silicone braided hose. About 16" long with a 45-deg elbow and a nipple at the oil pan. This is HUGE compared to the actual oil feed line that has a 1/8 orifice in it -but I like some said you can never go too big on the return line.
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