Ninjacheezit Posted July 15, 2018 Share Posted July 15, 2018 Okay, so I've been looking up and every factory turbo set up uses banjo bolts for the oil feed line. also the banjo bolt that goes into the turbo has a smaller hole than the one that goes in the block, which is its restrictor. My oil feed line for my N/A Turbo set up is going to be using a freeflow -4an hose. There is no restrictors. The turbo is a vf48, am I going to need a restrictor for this turbo and if so how do I go about putting on in a -4an line? Link to comment Share on other sites More sharing options...
Max Capacity Posted July 16, 2018 Share Posted July 16, 2018 Years ago I put a 1/4" shut off valve in line with a pressure gauge, opened the valve about a quarter of the way. On the Interga that gave the turbo 40psi of oil pressure at normal engine speed. I removed the handle on the shut off valve after knowing the pressure was good. I have a picture of that set up somewhere, don't have time to find it now 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Code Posted July 16, 2018 Share Posted July 16, 2018 https://www.atpturbo.com/mm5/merchant.mvc?Screen=CTGY&Store_Code=tp&Category_Code=RES "Striving to better, oft we mar what's well." - Bill Shakespeare - car modder Link to comment Share on other sites More sharing options...
Ninjacheezit Posted July 16, 2018 Author Share Posted July 16, 2018 Great thanks for the replies. One last thing does the vf48 use a 1.5 mm restrict or or 1mm. I’ve found a lot of topics online for other ihi turbos but not the vf48 exactly Link to comment Share on other sites More sharing options...
Max Capacity Posted July 16, 2018 Share Posted July 16, 2018 The member to ask is "JmP6889928 PM him. He used to rebuild turbos for us. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Ninjacheezit Posted July 17, 2018 Author Share Posted July 17, 2018 Gave him a quick pm and sadly he doesn’t know for sure either. Said my safest route is getting a banjo bolt from Subaru and using that but that requires me to either make a new braided line that accepts a banjo bolt or get one of those banjo bolt adapters that screw onto a -4an fitting. Link to comment Share on other sites More sharing options...
Max Capacity Posted July 17, 2018 Share Posted July 17, 2018 Yes, those adapters can be purchased from any number of places. Summit, Earls High Performance, Jeg's, etc. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Ninjacheezit Posted July 18, 2018 Author Share Posted July 18, 2018 Just for anyone that stumbles on this in the future. A vf40 uses a banjo bolt with a 1.5mm orifice, the vf40 and vf48 turbo uses the same part number for the banjo bolt. Meaning the vf48 also uses a 1.5mm orifice banjo bolt. Link to comment Share on other sites More sharing options...
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