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you can DIY that IMO and possibly tackle more around that area (paint, leaks, clean, general maintenance). if you can remove the radiator, disconnect downpipe, o2 sensor plug, turbo coolant.& oil lines then turbo/manifold just comes out in one piece. I would probably try to break loose some bolts to the 02 housing before hand. I would avoid any exotic hardware there, does your 71hta have that oil pressure regulator thing already? do you have the antisurge version and the matching intake hose? that might require some trimming. the band clamp for the orig turbo seems ok,not sure if it has a lifespan. I cant remember if i replaced it but i know I bought an extra one. might be a good time to upgrade to silicone coolant lines
yea turbo has to come apart anyway. just stock oil and eveyrthing else except for the 18psi wastegate. they said it didn't need anything else, just a direct swap.
TRE is probably going to do it, but only because i've known Jon for literally 15 years.
So, I compared the plates between the one I got in the kit and one from my pump and they are slightly different as well. Inner openings and holes are identical, which is good, but the one from the pump has a smaller OID. Here is the picture with two of them on the top of each other, with OEM one at the top:
Notes from FP: "We no longer recommend using oil supply from the cylinder head for the FP Journal Bearing turbochargers for the Mitsubishi Evolution 9. Oil pressure measurements made on various engines indicate that in many cases the amount of available oil pressure at the cylinder head feed location is less than adequate. The factory head feed location prioritizes the turbo oil supply lowest, after all other oil supply duties within the engine. These turbochargers require a minimum of 45psi of oil pressure under full engine load, and sourcing oil supply from the cylinder head simply does not meet this requirement.
The filter housing source is much higher pressure than what is available at the cylinder head. Relocating the oil supply to the oil filter housing allows the turbocharger to be fed a sufficient supply of oil pressure and volume.
Some people may insist that 20 or 30psi of oil pressure is sufficient to supply a typical floating journal bearing turbo, it is our specific experience that this is not true in the case of an automotive racing turbocharger used in a performance application where excessive EGT, high shaft speed and maximum thrust load are the norm, not the exception."
What kind of sealant are you guys using between the gaskets? I usually just use permatex grey stuff but I want something that holds up especially for the heat.
i'm being ocd about it because I did end up having a small exhaust leak last time we did the manifold. Maybe just a tiny amount around the edges? I realize it won't do much but if it doesn't harm I'd like to, unless it's absolutely NOT recommended.
