OEM/Stock Turbo Information

[THAWA]

This is for information on the OEM/Stock Turbo offered in all Subarus.

IHI Turbos

VF1

Vehicle(s) found on:

Turbine info:

Blades: 9

Housing numbers:

Compressor info:

Blades: 10

Housing numbers:

VF1
RHB512045

Measurements:

Part number(s)
420637050

VF2

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF4

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF7

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF8

Vehicles found on:
All manual JDM BC Legacy RS, RS-R, RS-RA

Turbine info:

Blades: 10

Housing numbers:
H6
32R
B52X
20-R
5

Compressor info:

Blades: 5 small + 5 large
Style: curved

Housing numbers:
VF89404
215507A

Measurements:
Comp inlet: 45mm
Comp outlet: 36mm

Part number(s)
14412AA041

VF10

Vehicles found on:
All Legacy GT, automatic Legacy/Liberty RS

Turbine info:
Blades: 9

Housing numbers:
K2
1J
B52X
15-R
3

Compressor info:
Blades: 5 small + 5 large
Style: curved

Housing numbers:
VF109111
RHB5218332A

Measurements:
Comp inlet: 45mm
Comp fan: 36mm
Comp outlet: 36mm

Part number(s):
14412AA051

VF11

Vehicle found on:
All USDM Legacy Turbo

Turbine info:
Blades: 9

Housing numbers:
3
OE
B52X
15R
D

Compressor info:
Blades: 5 small + 5 large
Style: curved

Housing numbers:
VF119007
RHB531150W

Measurements:
Comp inlet: 45mm

Part numbers:
14412AA070

VF12

Vehicle(s) found on:
All manual Liberty RS, manual Legacy UK Turbo

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:
Comp inlet: 45mm
Comp outlet: 36mm

Part numbers:

VF13

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF14

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF15

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades: 5 short + 5 long
Style: Straight

Housing numbers:
VF15
RHB52 5112718

Measurements:

Part number(s)
14412AA120

Additional Info
Turbine speed sensor

VF16

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF17

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF18

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF19

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF22

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF23

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF24

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF25

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF26

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF27

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF28

Vehicle(s) found on:
GC8 D-E, s201

Turbine info:

Blades: 12

Housing numbers:

Compressor info:

Blades: 6

Housing numbers:
VF28 0306
RHF530 556E

Measurements:

Part number(s)
14411AA291

VF29

Vehicle(s) found on:
Impreza WRX STi Version 6

Turbine info:

Blades:11
Titanium

Housing numbers:
H
S5
P18
3T

Compressor info:

Blades:5
Titanium

Housing numbers:
VF29 0103
RHF5 08 667E

Measurements:
Comp inlet: 45mm
Comp outlet: 36mm

Part number(s)
14411AA291

VF30

Vehicle(s) found on:

Turbine info:

Blades: 11

Housing numbers:

Compressor info:

Blades: 6
Curved

Housing numbers:
VF300103
RHF5516500E

Measurements:

Part number(s)
14411AA373

VF31

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF32

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF33

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF34

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF35

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF36

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:
6

Housing numbers:
VF36 0210
RHF5HB24661E

Measurements:

Part number(s)

14411 AA492

VF37

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF38

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

VF39

Vehicle(s) found on:
USDM Impreza WRX STi

Turbine info:

Blades: 11

Housing numbers:

Compressor info:

Blades: 6

Housing numbers:

Measurements:

Part number(s)

VF40

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

MHI Turbos

TD04-13T

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:

Part number(s)

TD05-16G

Vehicle(s) found on:

Turbine info:

Blades:

Housing numbers:

Compressor info:

Blades:

Housing numbers:

Measurements:
Comp inlet: 45mm
Comp outlet: 36mm

Part number(s):
14412AA090
14412AA092

Please add any confirmed information and make corrections. I know I've made a mistake somewhere.

[legacy92ej22t]

It was just for you. We all knew it would bug you so we all got together back before we even knew you and plotted to spread the evil rumor that some USDM Legacy turbos with 4eat got the VF10 too. Haha, jokes on you.

[THAWA]

I knew it!

[Matt Monson]

Double Edit: Nice chart THAWA...

[THAWA]

I care because it's silly to spread incorrect information. The two turbos are different by more than that. Coolant pipes are different, compressor housing is sized different, and clocked differently.

This topic is most definately not suited for the ashtray. If anything it should go in the Misc forum. As it still pretains to the Legacy.

Technical value? How about when someone asks which turbos came on us legacys? Maybe I should retitle it to like, "Oem turbo" or something?

[Matt Monson]

edited

[THAWA]

Heh, yeah. I guess there was a better way to do this topic.

[Kelly]

Smells like sex in here.

[THAWA]

Okay, see this is why we need threads like this.

VF10 and VF11 both have 9 blades on the turbine wheel, not 9 and 10, or 8 and 9 or whatever. Where does all this misinformation come from? It appears as though the turbine sections are the same, and the compressor sections are different. Both have the 15R turbine housing, but the entire compressor housing is different. The compressor inlet elbows are different. The VF10 compressor inlet has the same diameter down to the wheel. The VF11 tapers to a smaller diameter down to the wheel. The compressor inlet elbow mounting is different aswell, when looking at the VF10 from the front of the compressor it has one bolt on the upper left and one on the lower right. The VF11 has one bolt on the upper right, and one on the lower left. The spacing of the bolts is different also. The tabs on the compressor inlet are different to boot, the tabs on the VF10 are perpendicular to the tabs on the VF11, as are all other EJ turbos with the 90 deg inlet. The compressor wheels themselves may be different, but I cannot confirm this yet. The compressor outlet on the VF10 is larger than the compressor outlet on the VF11. The compressor is also pointing to 90 degrees, instead of 45 degrees like the VF11. And finally the coolant lines are different. They both point to their respective coolant tanks, VF10 - #1 cylinder, VF11 - #4 cylinder.

They're two different turbos, how could one come on manuals - VF11(smaller) and another on automatics - VF10(larger), and both work with the rest of the engine?

[Matt Monson]

I know that when I first came to this board 2 years ago, it was something that was going around. I am guilty of spreading the myth a bit.

You tech above is pretty solid (as usual) but I am pretty sure there is a difference in the number of blades on the exhaust turbines between the two turbos in addition to the other differences you highlighted...

[Bheinen74]

i just learned a hell of a lot about the turbo that i will never need to know. oh well, reading that made my day go by a little faster.

[legacy92ej22t]

I thought it was the compressor wheel that had a different number of blades, not the exhaust turbine....

I thought over seas models got the VF8 on manuals and VF10 on autos.

[Matt Monson]

OK,
I must have mixed up my VF-8 with my VF-29 since I just got the numbers off the VF-8. Not the first time I have made such a mistake. The exhaust housing is as follows:

H6
32R
B52X
20-R
5

Compressor side is:

VF8 9404
215507A
14412 AA041

The last number is the factory part number.
I'll get this info off the VF-10 tonight to add to the database...

[THAWA]

Very cool, so there's confirmation of the 20R dealie.

I think you're right, we do need a database for this kind of thing. With measurements, pictures, and such.

[Matt Monson]

Allright. Here's the VF-10 to add to the information:
K2
1J
B52X
15-R
3

Compressor side:

VF10 9111
RHB52 18 332A
14412 AA051

Now here's were it gets interesting. I decided to remove the elbow so I could measure the compressor fan and count the fan blades. When I got inside I found that the 5 compressor blades were double blades. I have only seen this on real high end turbos like a custom built KKK K27's for Porsche Turbo! Can anyone who has ever rebuilt a VF-11 verify whether or not the USDM turbos were the same? And lastly, the VF-10 has 9 blades on the exhaust turbine...

Lastly, the compressor inlet is 45mm at the bend, tapering to 36mm at the fan, and the outlet is 36mm.


I no longer have a VF-11 in my possession to post up this info, so hopefully someone will pipe in with the same info on that.

Also, since we are trying to make this FAQ material, I am going to remove my first couple of posts, and suggest others do the same...

[All_talk]

What do you mean by "double blades", is that one tall then one short with 10 total? The VF7 off the EA82T is like that.

Gary

[THAWA]

All of the RHB's I've seen have double blades, VF11 included. I think I'm going to buy a digital caliper and measure this VF11. Great information Matt.

Is it possible to take some measurements of the turbine sections aswell?

Is it safe to assume the second line of information on the compressor housing of the VF8 is missing the RHB5 part?

This VF10 I've got here has different numbers:

VF109205
RHB5211397A


L2
D2

Maybe this type of stuff is like serial numbers, or very detailed sizes, like the A, B, C/1, 2, 3 of the pistons?

[Matt Monson]

yes, it did have the RHB5 part...

[free5ty1e]

Well, you asked for it:

http://home.cfl.rr.com/free5tyle/images ... rChart.xls

Here's the latest that I've compiled.

[Matt Monson]

Thawa,
On your VF-10, I don't see the part number listed? I would expect the serial number (following the VF10) to change. But maybe the part number is the same?

[Matt Monson]

VF29 0103
RHF5 08 667E
14411 AA291

H
S5

3T

Inlet 45mm
Outlet 36mm

5 compressor blades
11 exhaust blades
Blades are titanium. Stock turbo on MY00 STi v6

[THAWA]

Oh, I just posted the numbers that were different. The part number is the same. At least on our two turbos.

Is P18 the exhaust housing on the 29?

[Matt Monson]

yes. p-18 Sorry, I forgot that part...

[Penguin]

sorry guys i am a bit confused on the #'s on the turbos...
I see the spot where it says VF then 5 numbers......
I have a bunch of genuine subie turbos but none are the exact same number. I have a VF 11011 VF 11017 VF 10... VF 48...(i am at home now) VF 28... and a TD04L. I Think the 48 and 28 are old school (ea82)but i am not sure.

Is there a difference in the vf11's?

[THAWA]

I don't fully understand the numbering system, but I don't think the last 4 digits are used in normal designation. So if you have a turbo with 6 digits, like VF109111, you would drop the last 4 digits, and what you're left with is the normal designation, VF10. Or if you have a turbo with 5 digits, like VF11017, you drop the last 4 digits, and what's left is the normal designation, VF1. So if you can post the numbers on it