Lucan 196 Report post Posted November 19, 2012 This is a pretty general question but anyone got any links or decent info on turbo oil feeds, mainly restrictor sizes etc? Or a number of someone I could have a chat to? Finished my exams for the semester so back into it Feed fittings are the only plumbing I haven't sorted yet... Quote Share this post Link to post Share on other sites
CamB 48 Report post Posted November 19, 2012 This is a pretty general question but anyone got any links or decent info on turbo oil feeds, mainly restrictor sizes etc? Or a number of someone I could have a chat to? Finished my exams for the semester so back into it Feed fittings are the only plumbing I haven't sorted yet... If you provide details (ie, what turbo), and "crunchy" (Steve Murch) sees the thread you will get more expertise than you could ever need. Quote Share this post Link to post Share on other sites
Andre3000 55 Report post Posted November 19, 2012 If you provide details (ie, what turbo), and "crunchy" (Steve Murch) sees the thread you will get more expertise than you could ever need. ^ what he said, Steve said a 2mm restrictor at both ends of -3an feed hose suits my t4ob. Depends if you have ball bearing or journal. Quote Share this post Link to post Share on other sites
thorburn 120 Report post Posted November 20, 2012 (edited) If that is the case what is suggested for a dirty old 8 blade Holset H1c edit: decided to not be lazy. What i've learnt from my google searching so far. The oil restrictor is there to give the turbo the correct oil pressure. Different engines have different oil pressures so the same turbo and restrictor isn't suitable for all vehicles Ball bearing turbos don't need as much oil pressure Journal bearings need some oil pressure just like main bearings on a crank Too much oil pressure destroys seals. Unfiltered oil feed lines like to clog restrictors and kill turbos I haven't yet been able to find any specifics on how much pressure you'd want a turbo to be seeing Edited November 20, 2012 by Thorburn Quote Share this post Link to post Share on other sites
polley 916 Report post Posted November 20, 2012 If that is the case what is suggested for a dirty old 8 blade Holset H1cI'm just running a -4 line, no restrictor on a hx35.No problems with burning oil or leaking any into the comp housing. I run a -12 drain to the timing cover. Quote Share this post Link to post Share on other sites
No name user 379 Report post Posted November 21, 2012 ^ what he said, Steve said a 2mm restrictor at both ends of -3an feed hose suits my t4ob. Depends if you have ball bearing or journal. +1 for andrews post could add more but im not going to compete with keyboard jockeys but for the record you cant reduce pressure to turbo you reduce volume and seals dont blow any issues in that department is the end result of other things going wrong, and its lunch time Quote Share this post Link to post Share on other sites
Andre3000 55 Report post Posted November 25, 2012 +1 for andrews post could add more but im not going to compete with keyboard jockeys but for the record you cant reduce pressure to turbo you reduce volume and seals dont blow any issues in that department is the end result of other things going wrong, and its lunch time Btw steve I'm moving atm and just found 3 of your magazines you lent me a long time ago. If you wanna pm me your address I'll post em back to you. Quote Share this post Link to post Share on other sites
No name user 379 Report post Posted November 25, 2012 Btw steve I'm moving atm and just found 3 of your magazines you lent me a long time ago. If you wanna pm me your address I'll post em back to you. what mags are they? Quote Share this post Link to post Share on other sites
Andre3000 55 Report post Posted November 25, 2012 what mags are they? YoungTimer, Daz Prestige, Autotuning. All german mags. Quote Share this post Link to post Share on other sites
No name user 379 Report post Posted November 25, 2012 YoungTimer, Daz Prestige, Autotuning. All german mags. really? you sure their from me cant remember buying them Quote Share this post Link to post Share on other sites
Andre3000 55 Report post Posted November 26, 2012 really? you sure their from me cant remember buying them Pretty sure they are, maybe I'm losing my mind, which is quite possible... I'll take a picture of em, may jog your memory? Quote Share this post Link to post Share on other sites
