2.4 Evo builds using HX35/40 turbo!
Sep 24, 2016, 08:01 PM
#16
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so were you achieving full spool under 5k rpm? if so I think I had should have nothing to worry about especially with having a 2.4 stroker, ported head, etc
Sep 24, 2016, 08:21 PM
#17
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too high oil pressure from the OFH I imagine? what was your pressure?
Me having deleted the balance shaft and using GSC race shaft and oil cooler delete, my Evo is hitting 100 psi of oil pressure from cold starts and then lowers down to around 40 or so idling... crazy high but Im thinking about running the oil feed to the head but in fear of not supplying enough oil pressure. but on the other hand I do have a custom 12an drain that im fabricating that may still allow me to manage the high oil pressure as long as its draining it adequately.
Me having deleted the balance shaft and using GSC race shaft and oil cooler delete, my Evo is hitting 100 psi of oil pressure from cold starts and then lowers down to around 40 or so idling... crazy high but Im thinking about running the oil feed to the head but in fear of not supplying enough oil pressure. but on the other hand I do have a custom 12an drain that im fabricating that may still allow me to manage the high oil pressure as long as its draining it adequately.
Sep 25, 2016, 09:44 AM
#18
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too high oil pressure from the OFH I imagine? what was your pressure?
Me having deleted the balance shaft and using GSC race shaft and oil cooler delete, my Evo is hitting 100 psi of oil pressure from cold starts and then lowers down to around 40 or so idling... crazy high but Im thinking about running the oil feed to the head but in fear of not supplying enough oil pressure. but on the other hand I do have a custom 12an drain that im fabricating that may still allow me to manage the high oil pressure as long as its draining it adequately.
Me having deleted the balance shaft and using GSC race shaft and oil cooler delete, my Evo is hitting 100 psi of oil pressure from cold starts and then lowers down to around 40 or so idling... crazy high but Im thinking about running the oil feed to the head but in fear of not supplying enough oil pressure. but on the other hand I do have a custom 12an drain that im fabricating that may still allow me to manage the high oil pressure as long as its draining it adequately.
I've always fed from the OFH with no balance shafts. My OFH is ported because I was getting 100psi+ at WOT. Now I'm around 65lbs. If you search Evo Holset you will see most if not all are feeding from the OFH.. You maybe want to reconsider.. Or maybe put a restrictor on there and tune for correct oil pressure.. Unless you want to blow oil seals... Good luck can't wait to see the results!!
Sep 25, 2016, 11:43 AM
#19
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I've been running a Holset on my DSM for about 5 years+.. The minimum oil pressure when the engine is on load must be 30 psi Maximum. Permissible operating pressure is 72 lbs although 88 lbs is permitted during cold start up. Under idling conditions pressure should not fall below 10psi.
I've always fed from the OFH with no balance shafts. My OFH is ported because I was getting 100psi+ at WOT. Now I'm around 65lbs. If you search Evo Holset you will see most if not all are feeding from the OFH.. You maybe want to reconsider.. Or maybe put a restrictor on there and tune for correct oil pressure.. Unless you want to blow oil seals... Good luck can't wait to see the results!!
I've always fed from the OFH with no balance shafts. My OFH is ported because I was getting 100psi+ at WOT. Now I'm around 65lbs. If you search Evo Holset you will see most if not all are feeding from the OFH.. You maybe want to reconsider.. Or maybe put a restrictor on there and tune for correct oil pressure.. Unless you want to blow oil seals... Good luck can't wait to see the results!!
but to chime in more on my setup I have an oil feed line with a fp restrictor coming coming from the oil filter housing currently, w/ a proper drain as recommended. Also I couldnt find a proper how to for porting the oil filter housing w/ pictures etc. its just on this brand new motor that high of oil pressure versus stock for my Evo is just concerning and im looking for a final take on what to do and be done with it with no worries.
Sep 26, 2016, 12:59 AM
#20
Too much oil pressure kills Holsets, the DSM guys have written quite a bit on this topic.
I run a restrictor on our B series Hondas because those engines also have very high oil pressure especially with a modded oil pump and have had no issues with 'too little oil'.
I run a restrictor on our B series Hondas because those engines also have very high oil pressure especially with a modded oil pump and have had no issues with 'too little oil'.
Sep 26, 2016, 10:51 AM
#21
Evolving Member
Thread Starter
That's why I'm thinking about running an unrestricted line from the oil feed at cylinder head... highly doubt it's possible to have stock oil pressure in the head when the bottom is achieving 40 psi once warmed up and at 100 psi on cold starts. I'll be sure to update this thread after the tune and final setup regardless! No one wants to kill a brand new turbo
Sep 27, 2016, 03:44 AM
#23
Sep 27, 2016, 06:26 AM
#24
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Sep 27, 2016, 02:29 PM
#26
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Sep 27, 2016, 11:25 PM
#27
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