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Old 09-09-2012, 02:38 AM   #1
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Default Turbo Feed line oil filters ??

Came across this while browsing BEGIs site

Turbo Oil Filter / Cooler BEGi

I did some google searching and some people are using filters like Earls -4an inline filter in their feed lines on there cars (not miatas)

Anyone here have experience with them ? im guessing 99% of the guys here are not using one. Is this just another product thats created for paranoid people that may do more harm than good ?
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Old 09-09-2012, 03:17 AM   #2
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To use the an fitting you'll need to buy 2 new shorter hoses and replace your current single long hose. Your new hoses will need to have 4an fittings on there for the filter/cooler on one end. Then the other end will need to be whatever it is for the turbo and the block. If you dont want to do all that you can get them fitted with a barb fittings instead (see options on the link of begis page) and simply cut your hose and use hose clamps.

The more common thing people here use is an oil cooler.. like a regular oil cooler to cool the entire pan.
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Old 09-09-2012, 03:26 AM   #3
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My question wasn't about how to hook up an inline oil feed filter, that's easy. And I know about actual oil coolers

my question was about using an Inline oil feed filter. and if anyone was doing it or recommending it
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Old 09-09-2012, 03:30 AM   #4
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I always assumed the engine's oil filter was sufficient. If its good enough for my crank and cam bearings, it's good enough for my turbo bearings.
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Old 09-09-2012, 03:37 AM   #5
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Curly, is the oil pressure sender before or after the filter? i thought it was before.
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Old 09-09-2012, 07:56 AM   #6
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Quote:
Originally Posted by triple88a View Post
To use the an fitting you'll need to buy 2 new shorter hoses and replace your current single long hose. Your new hoses will need to have 4an fittings on there for the filter/cooler on one end.
Wrong. You could just screw the thing into your oil source or the turbo.

If. It fits. Which it doesn't. Because it is a shiitty BEGI improperly overengineered part.

There are other cheaper oil filters that would fit. Earl's Performance 230104ERL - Earl's Performance Inline Fuel Filters - Overview - SummitRacing.com

But

If your motor has contaminated oil, basically, your motor is fucked. And if your oil is contaminated enough to destroy your turbo, it will clog the filter. And then your turbo will have no oil. And will die.

This has happened to me twice.

Moral is do not let your oil get contaminated.
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Old 09-09-2012, 08:22 AM   #7
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How does your oil get contaminated? Metal shavings from sawzall?
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Old 09-09-2012, 11:35 AM   #8
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Quote:
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How does your oil get contaminated? Metal shavings from sawzall?
Yeah, thats how he does an oil change.. saws through the oil pan to drain it, and then saws through the valve cover to fill it back up after getting it welded.
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Old 09-09-2012, 12:27 PM   #9
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Quote:
Originally Posted by AllSystemsNominal View Post
my question was about using an Inline oil feed filter. and if anyone was doing it or recommending it
My guess would be very few.

My gold standard for analyzing the suitability of unusual or counterintuative products / methods / technologies tends to be "What are the OEMs and the successful race teams doing?"

So far as I am aware, 100% of OEM turbocharged cars, from the Chrysler New Yorker to the Bugatti Veyron, draw oil for the turbocharger(s) from the engine's oiling system, after filtration through the engine's primary filter, and with no secondary filtration. Same goes for turbocharged rally cars, F1 back in the turbo era, etc.

It's important to remember that the oil feeding the turbo, presuming you are drawing it from either the oil pressure sensor hole or, on earlier engines, the feed port near the flywheel, has already passed through the primary oil filter and has no been exposed to any "dirty" engine parts prior to being drawn out.

A typical oil filter is effective down into the 20-30 micron range, and more expensive filters (Amsoil, Mobil1) claim to be effective to as low as 10 microns or less.

Given this, it's difficult to understand how placing a 50 micron secondary filter on the feed to the turbocharger is going to accomplish much.
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Old 09-09-2012, 01:53 PM   #10
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Thanks for the info Joe. makes perfect sense to me

In my searching last night I found out that Subaru was using small filter screens in their feed lines at one time, then they started getting people coming in with blown turbos cause oil sludge would clog them. I guess Subaru actually has some TSBs out saying to remove the filter screens.
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Old 09-09-2012, 02:51 PM   #11
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Quote:
Originally Posted by Joe Perez View Post
Given this, it's difficult to understand how placing a 50 micron secondary filter on the feed to the turbocharger is going to accomplish much.
When cold it is possible to have enough pressure in the oil system for the bypass within the oil filter to open and allow unfiltered oil to be pumped through the system. One problem with the inline feed filter could be it clogging without your knowledge and causing turbo failure. Damned if you do, damned if you don't. The bypass problem is part of why you should allow your engine to reach operating temperature before driving or revving it.
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Old 09-09-2012, 05:43 PM   #12
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I was assuming the part was intended for a remote mounted turbo with its own recirculating oil system.
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Old 09-12-2012, 02:14 AM   #13
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And I assumed it was meant for those taking their oil feeds from a sandwich plate or relocation kit, which sends pre filtered oil to the turbo.

I dont know why people want to use sandwich plates to feed. The route isnt much if any shorter than using the oil pressure sender. I envy you guys who have a block with an oil port on the correct side of the engine for a turbo feed.

My plan is to feed from a relocated oil filter, but not from the plate. I was just going to T into the post filter oil line. Any reason not to?
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Old 09-12-2012, 02:21 AM   #14
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Quote:
Originally Posted by Animus21 View Post
My plan is to feed from a relocated oil filter, but not from the plate. I was just going to T into the post filter oil line. Any reason not to?
No, that's an excellent location to take oil from.
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Old 09-12-2012, 10:37 AM   #15
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So many subaru's toasted their turbo's due to those stupid screens, that Subaru eventually told everyone to yank them and toss them. For this reason alone, I think an inline filter is junk and would never use one.
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Old 09-12-2012, 12:43 PM   #16
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Quote:
Originally Posted by sixshooter View Post
When cold it is possible to have enough pressure in the oil system for the bypass within the oil filter to open and allow unfiltered oil to be pumped through the system.
This is true, although it's not as though the oil sitting in the pan is itself horrendously dirty. It's already been run through the filter a thousand times, and is not likely to have picked up a large amount of particulate contaminates in the 1001'th pass through the system.
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