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I'm not saying it wasn't. But we have a process for cleaning engine and parts before machine work, after machine work, before assembly, AND during assembly. It's ludicrously **** because it has to be.
Lmk if you want to send me your engine, be happy to build you a 2.2
Lets use this as a typical oil pressure scatter graph.
Purple/blue dots are 63-70 degC (145 to 158 degF) on this setup is around 72psi at the mains gallery (approx 82-85 at the oil filter housing).
If the rpm increased at that temp, we would see around 85-90psi a the mains gallery.
"At 80ºC oil temperature (176ºF) and 5500-6000rpm, a reasonable oil pressure number is 90-100psi when measured at the oil filter housing. Measuring oil pressure in the mains gallery (in the OEM oil pressure switch location on Evo 8) will be 10-12psi lower than the oil filter housing."
[section from the IE instructions]
The reason why I say to go to 5500-6000rpm to check the oil pressure when it's hot (80 degC) is that will be around your maximum oil pressure.
If you're 100psi at 3500rpm, then you're probably 120psi (approx) above 5000rpm. Oil grade/weight and oil temp dependant.
While this isn't a "problem", it's probably a bit high. I recommend 90-100psi at the oil filter housing when at operating temp.
That being said, the high oil pressure shouldn't cause any problems. But you will need to keep an eye on the cold oil pressures, they may be far too high (150++)
High oil pressure just adds heat to the oil when it's not needed. On our high output dry sump engines, we do run quite a bit more pressure to help the hydraulic wedge support the abuse. But those are 1/4 or 1/2 mile engine and making upwards of 250whp/hole
I'm not saying it wasn't. But we have a process for cleaning engine and parts before machine work, after machine work, before assembly, AND during assembly. It's ludicrously **** because it has to be.
Lmk if you want to send me your engine, be happy to build you a 2.2
Ugh, cant link it here for some reason. Look up B&M Performance on FB. Theyve been parting out and doing dsm/evo stuff for years. Pretty much have everything though it comes at a price for that convenience.
Ugh, cant link it here for some reason. Look up B&M Performance on FB. Theyve been parting out and doing dsm/evo stuff for years. Pretty much have everything though it comes at a price for that convenience.
Thanks for the tip! Good to know about another source.
I really should just pull my transmission and ship it to TRE this winter.
yup. good to know they have the oil filter housing, just in case
We'll be doing a billet filter housing in the not so distant future. The stock piece is pretty complex so a direct replication would be pretty expensive. I'm still trying to decide if we are going to offer a basic filter housing (if someone wants to run a cooler they can just add a basic sandwich plate) as well as a remote filter option.
We'll be doing a billet filter housing in the not so distant future. The stock piece is pretty complex so a direct replication would be pretty expensive. I'm still trying to decide if we are going to offer a basic filter housing (if someone wants to run a cooler they can just add a basic sandwich plate) as well as a remote filter option.
awesome man! I hope it comes out before I need them
Aug 12, 2023, 08:08 PM
