What size oil restrictor for 76mm journal bearing turbo
#1
What size oil restrictor for 76mm journal bearing turbo
I bought a turbo oil kit that I have installed on my 76mm turbo (stock ls1). The flange that bolts onto the turbo for the oil supply (4an) is only sized with a tiny hole. The part description says something along the lines of 'reduced size to avoid over oiling'. How do I know if this is going to be enough oil, the hole is pretty tiny.
#5
buy a .080 or .060
you can get t4 oil feed flanges with a 4an fitting with it predrilled and restricted for like 5-11 dollars on ebay and amazon.
http://www.amazon.com/Turbo-Feed-Ada...2771995&sr=8-2
you can get t4 oil feed flanges with a 4an fitting with it predrilled and restricted for like 5-11 dollars on ebay and amazon.
http://www.amazon.com/Turbo-Feed-Ada...2771995&sr=8-2
#7
buy a .080 or .060
you can get t4 oil feed flanges with a 4an fitting with it predrilled and restricted for like 5-11 dollars on ebay and amazon.
http://www.amazon.com/Turbo-Feed-Ada...2771995&sr=8-2
you can get t4 oil feed flanges with a 4an fitting with it predrilled and restricted for like 5-11 dollars on ebay and amazon.
http://www.amazon.com/Turbo-Feed-Ada...2771995&sr=8-2
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#13
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Like he said a journal bearing turbo does not require an oil restrictor. Make sure your oil drain is as straight as possible I run a -10 to the oil pain no restictor and have no issues on my 76.
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Some turbo's need restrictions or they can smoke at idle. You need to contact the people that produce the center of your turbo if it's a hybrid and they can give you the spec. My Garrett that has over 100,000 miles on it uses a .060 hole to maintain the oil pressure at the turbo of between 9-40 psi. Mine actually goes a touch over 40 psi at 5000rpm and up, but it does not smoke or have any problems. My engine without restriction would smoke at idle with a -4 feed, it was 60 psi at the turbo.
Kurt
Kurt
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u don't need a restrictor unless you are above 80psi oil pressure wot. you can call garrett or turbonetics, many turbo vendors and I think the next size down on restrictor, I know it doesn't change a lot