Oil return line

Discussion pertaining to positive pressure E28s.
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1984533i
Posts: 152
Joined: Sep 06, 2011 1:07 AM
Location: Mandeville Louisiana

Oil return line

Post by 1984533i »

I'm putting a k27 setup on my m30 and I wanted to know what size an hose I should use and what size an fitting to go in the pan would be appropriate ?
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turbodan
Posts: 9217
Joined: Jan 09, 2007 10:19 PM

Post by turbodan »

Use whatever size hose fits your oil drain fitting. If you dont have an oil drain fitting, get one and select a hose that fits it.
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mpowertech
Posts: 255
Joined: Sep 19, 2011 2:01 PM
Location: Baltimore, MD

Post by mpowertech »

I just ordered these this morning from JEGS for my Oil supply to turbo from filter housing

Sorry I don't have time to hotlink the webpages. Back to my rrfpr bracket install!

Invoice Date: 1/14/12
Status: In Process
Part # Description Unit Price Qty Price
555-100101 1/8"NPT TO #4 FLARE $1.99 2 $3.98
799-632010 #4 HOSE PRE-CUT 6-FEET $31.99 1 $31.99
361-9919BFG 4AN X 12MM 1.5 ADAPTOR $11.99 1 $11.99
361-300104 FTG -4 STRGHT AUTO FIT $6.99 2 $13.98
Last edited by mpowertech on Jan 14, 2012 9:05 PM, edited 1 time in total.
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BATESY
Posts: 428
Joined: Jul 06, 2008 8:42 PM
Location: Renton, WA

Post by BATESY »

you dont want it to return through oil drain plug into the pan. Not the best idea but it works. you want to turbo to drain above the level of oil in the pan.Otherwise it makes the oil stay up in the turbo and doesnt allow constant flow of oil to lubricate the turbo.

I would have thought a AN6 or AN8 would be good. The stock return hose is about 5/8 or so inch.

racerpartswholesale.com

these guys sell all the AN fittings youll ever need.
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