Thread: EJ207 Owners?
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Old 11-18-2019, 02:47 PM   #11828
Gerald81
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Join Date: Mar 2003
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Quote:
Originally Posted by mrsaturn7085 View Post
I'll just do the whole list; it looks like the oil feed pipe is the only part unique to specific turbos and not just features of the turbo -

The correct VF36 parts are:

15192AA470 - oil feed [green]
15194AA130 - oil feed bolt [blue] - this is the bolt that fits ball bearing turbos
803910050 - oil feed bolt washer (2) [yellow] - same across most motor/turbo combinations
99078AA341 - water hose [yellow] - this is the hose that fits twin-scroll turbos
805918010 - water hose clamp (2) [blue] - same across most motor/turbo combinations

The correct VF37 parts are:

15192AA480 - oil feed [green]
15194AA110 - oil feed bolt [blue] - this is the bolt that fits journal bearing turbos
99078AA341 - water hose [yellow] - this is the hose that fits twin-scroll turbos
I know this was an old post, but I was just doing some research on this while fitting my VF42 (a ball bearing twin scroll turbo) and found something interesting.

Since the VF42 is a ball bearing turbo like the VF36, I expected it would be paired with the same oil feed pipe and bolt (15192AA470 and 15194AA130) as the VF36.

However, I have found that Subaru uses the same oil feed pipe and bolt (15192AA480 and 15194AA110) witht he VF42 as the ones used with the VF37.

In other words, the S204 which comes with the VF42 (ball bearing, twin scroll) uses the same oil feed system as the standard JDM STI which comes with the VF37 (journal bearing, twin scroll). Only the JDM Spec C which comes with the VF36 (ball bearing, twin scroll) uses a different oil feed.

I thought the ball bearing turbos need less oil pressure hence the different parts for the VF36, but it is interesting that the VF42 uses the same parts as the journal bearing VF37? Any ideas why?
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