Q's about Evo 9 and 8 Stock Turbo

Reply Subscribe

Thread Tools

Search this Thread

Nov 28, 2008 | 06:42 AM

#16

Jorge T

Evolved Member

iTrader: (18)

Joined: May 2004

Posts: 1,494

Likes: 1

From: Houston, TX

Quote:

Originally Posted by Steve93Talon

Just to clarify this point, the IX CHRA is not exactly the same, the compressor side backplate is larger. I.E. you cannot swap compressor housings between VIII and IX turbos.

They are dimensionaly the same and are interchangeable.

Nov 28, 2008 | 07:42 AM

#17

Steve93Talon

Evolving Member

iTrader: (5)

Joined: Mar 2006

Posts: 491

Likes: 0

From: Phila, PA

No they aren't, I've had both in my possession side by side. If they were interchangeable, don't you think alot of people would be upgrading their VIII turbos to IX spec by swapping comp. housings? I attached the best pic I can find showing the larger diameter where the compressor housing meets the CHRA.

Attached Thumbnails

Q's about Evo 9 and 8 Stock Turbo-normal_evo9-20turbo-20diffuser-20compare-202.jpg

Nov 28, 2008 | 11:18 AM

#18

Jorge T

Evolved Member

iTrader: (18)

Joined: May 2004

Posts: 1,494

Likes: 1

From: Houston, TX

You're right i missed "compressor" I was thinking on the hotside, they are the same

Nov 28, 2008 | 12:32 PM

#19

wshihdnevo

Evolved Member

iTrader: (88)

Joined: Dec 2006

Posts: 2,765

Likes: 1

From: Tacoma

Just to clarify also, didnt read everything word for word, but the compressor wheel size is the same on both the VIII and IX turbos, but the IX comp housing is larger...

Nov 28, 2008 | 01:40 PM

#20

JYoungEVO

Registered User

iTrader: (6)

Joined: Sep 2008

Posts: 71

Likes: 0

From: connecticut

Quote:

Originally Posted by whitey4d

03s and 04s have the 9.8 with the small comp housing.
05s have the 10.5 also with small comp housing
06s still have the same CHRAs as all prior usdm models with the 10.5 and larger comp housing.

all flanges and threads are housing the same just a different coolant line bolted to the comp housing and a different outlet on the housing has a lil different angle aswell so it doesnt go into the starter if put on a earlier model.

I think this is more then you needed but wanted to be clear with everything