1G Feed the turbo from the oil filter housing

[Talon_33]

Hi,


I installed a Kiggly HLA to maintain more oil pressure at the base.


I have a 6-bolt engine with an EVO 3 16G turbo. I was told that because of the HLA, I should feed the turbo directly from the oil filter housing. So I ordered the STM kit, and I was also told to add a restrictor.


Is that the right thing to do?


And where can I connect on the oil filter housing? I already removed the factory oil pressure gauge sender to install my mechanical gauge.


Thanks.

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[tschuhly]

I got a vibrant sandwich plate for my oil filter since I'm running an air-cooled system instead of water cooled and I believe it came with other threaded places to tap in. Maybe you can consider this?

Something like this though make sure you choose the correct one for the car.

Thermostatic Oil Sandwich Adapter

Vibrant's Thermostatic Oil Sandwich Adapter comes tapped with -10 ORB inlet/outlet ports, includes a pair of -10 AN Male Flare adapter fittings and five (5) Oil Filter adapter bolts (M18 x 1.5, M20 x 1.5, M22 x 1.5, 3/4"-16 and 13/16"-16).

vibrantperformance.com

 

[19Eclipse90]

I was under the impression that any MHI journal bearing turbo should be fed from the head. I don’t see why the addition of Kiggly’s HLA would matter. I’ve been running my Evo 3 16G from the head with the Kiggly HLA for many 10s of thousands of miles.

Generally, it’s recommended to use a restrictor for any MHI journal bearing turbo feed from the filter housing.

So, I’m curious, if the HLA created more pressure in the bottom end, and the filter housing inherently has more pressure than the head, why would moving the feed to the higher pressure filter housing be preferred?

Sure, it can be done with the proper restrictor and an access port on the oil filter housing. That brings us to the other point that the forward facing housing like you have does not have a built-in access port for a turbo feed. If you were to modify the housing, you would need to drill and tap the boss to the right of the “E” in the casting, just breaking through to the gallery there.

With what you have, that’s what you have to consider. Food for thought.


Here’s a couple threads for reference:
16g oil restrictor ofh
Evo3 16g oil feed
Questions for Justin
E316G oil feed help

 

[1990TSIAWDTALON]

I was going to mention the lack of clean oil outlets on the FFOFH, thanks Brian.
I fed a bastard JW 20g from the OFH without issues, just as a mention but I agree that the mitsu turbos use a much lower oil pressure than aftermarket units.

 

[Justin DuBois]

Hmm, You have a forward facing oil filter housing, without oil cooler ports - bolted to a 6 bolt front case?

How do you cool your oil?

 

[19Eclipse90]

I realize that isn’t directed at me, but I don’t use an oil cooler. However, there are options for those that want to cool their oil, like @tschuhly alluded to earlier, with the forward facing housing.

Additional: VMC-Spec Oil Filter Relocation Kit and Oil Cooler Kit or Oil Filter Housing Ad-Ons

 

[1990TSIAWDTALON]

Funny, I didn't want to just say the OP doesn't use a cooler. My domestic stuff doesn't use coolers except the 96 Impala SS LT1. I don't think they are "necessary" but if you beat on your shit like I do, its good to have some kind. None of my horsey Chevys run one. Turbos do create more heat so my 1990 DSMs all still run there coolers as does my 92, only with water.

 

[Justin DuBois]

Funny, I didn't want to just say the OP doesn't use a cooler. My domestic stuff doesn't use coolers except the 96 Impala SS LT1. I don't think they are "necessary" but if you beat on your shit like I do, its good to have some kind. None of my horsey Chevys run one. Turbos do create more heat so my 1990 DSMs all still run there coolers as does my 92, only with water.

I have to remember that there are large groups that only stand on the throttle a few seconds.
I'd never recommend these cars run street or circuit without some oil cooling - viscosity breakdown is a real thing!

 

[bling5tatus]

I DD'd my 1GA Talon in Texas for many years during the summer time (34psi 4th gear highway pulls regularly). No oil cooler with 90*+ ambient temps outside (probably hotter with sun bouncing off asphalt), no noticeable damage from the cheap parts store brand oil breaking down either.

I'm not saying that oil cooling is not good. I'm saying it's not necessary.... even for a DD in a hot climate running cheap oil. Of course this is my experience and someone else will say their car spun a bearing after 30 minutes when it was 80* outside and they were using mobile 1 without an oil cooler. YMMV but I've had no cooler on my car that is a street car for like 90% of it's life with me (since 2005).

 

[Talon_33]

Hmm, You have a forward facing oil filter housing, without oil cooler ports - bolted to a 6 bolt front case?

How do you cool your oil?

I don’t have an oil cooler yet for now, but I’m thinking about maybe adding one.

 

[tschuhly]

The thing I like about the adapter that I posted up top is:

1: It gives you more ports to tap into.
2: It allows the oil to get up to temp before it opens up the channel for oil to begin becoming cooled.

It is very easy to install a cooler right behind the driver's side vent in the bumper. Trust me, if I can do it, anybody can do it haha!