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-   -   2011 GR STI Steering Rack options (https://www.scoobynet.com/general-technical-10/1067694-2011-gr-sti-steering-rack-options.html)

STI VI 14 June 2023 02:28 PM

2011 GR STI Steering Rack options
 
Hi Gents, I need a new rack not sure if the stanndard rack is 15:1 and to fit a spec c 13:1 or VAB steering rack, any advice here and does any one have the relevant parts numbers?

Cheers

JdmSti2006 14 June 2023 02:53 PM

Think newest VA sti one will fit,read its the best one to have

Don Clark 15 June 2023 08:04 AM

As requested:
Steering Rack assembly
G22 RHD models MY08-14 UK/Europe
Lock to Lock : 2.8 turns
Part number: 34110FG040

JDM G12 Rev A-E STI - 34110FG010
Rev C S206 - 34110FG040

V10 RHD models MY15-17 UK/Europe
Lock to Lock : 2.4 turns
Part number: 34110VA103

JDM V10 Rev A-D STI - 34110VA103

Gambit 15 June 2023 11:17 AM

Fitting a later/quicker rack will bollocks up the vdc, steering angles are all different

JdmSti2006 15 June 2023 12:25 PM


Originally Posted by Gambit (Post 12132224)
Fitting a later/quicker rack will bollocks up the vdc, steering angles are all different

2015 rack fitted to blobeye,its doable and its better than newage jdm one etc
post 189 on https://www.scoobynet.com/1055847-th...-thread-7.html

Gambit 15 June 2023 02:11 PM


Originally Posted by JdmSti2006 (Post 12132227)
2015 rack fitted to blobeye,its doable and its better than newage jdm one etc
post 189 on https://www.scoobynet.com/1055847-th...-thread-7.html

it's doable on GRs also but bollocks up the VDC

STI VI 15 June 2023 04:08 PM

Thanks Don your a star mate!

Question assume all these racks fit without mods, do you know the difference between the JDM rack 34110FG010 and the S206 rack 34110FG040? and what ratios are theybelieve the JDM is 13:1 and the standard UK rack is 15:1 or my understaning not correct? cheers

​​​​​​JDM G12 Rev A-E STI - 34110FG010
Rev C S206 - 34110FG040


Saw this posted on another forum is it correct mate?

​​​​​​
GRB 2008 STI JDM : 2.4 Turns Lock to Lock (Steering Rack Part: 34110FG010)
GRB 2008 STI Australian : 2.7 Turns Lock to Lock (Steering Rack Part: 34110FG040)

STI VI 15 June 2023 04:19 PM


Originally Posted by Gambit (Post 12132224)
Fitting a later/quicker rack will bollocks up the vdc, steering angles are all different

Mate what do you mean by VDC problems?

forgedmarco 16 June 2023 08:35 AM


Originally Posted by STI VI (Post 12132234)
Thanks Don your a star mate!

Question assume all these racks fit without mods, do you know the difference between the JDM rack 34110FG010 and the S206 rack 34110FG040? and what ratios are theybelieve the JDM is 13:1 and the standard UK rack is 15:1 or my understaning not correct? cheers

​​​​​​JDM G12 Rev A-E STI - 34110FG010
Rev C S206 - 34110FG040


Saw this posted on another forum is it correct mate?

​​​​​​
GRB 2008 STI JDM : 2.4 Turns Lock to Lock (Steering Rack Part: 34110FG010)
GRB 2008 STI Australian : 2.7 Turns Lock to Lock (Steering Rack Part: 34110FG040)

The S206 didn't get quick rack steering due to the suspension setup it runs (doesn't need it).

JdmSti2006 16 June 2023 09:07 AM


Originally Posted by STI VI (Post 12132236)
Mate what do you mean by VDC problems?

Vehicle Dynamics Control
tracktion and stabilization control , in theory most upgraded suspension parts could take an effort on oem VDC setup ,doubt car will notice it with quicker rack

Gambit 16 June 2023 09:11 AM


Originally Posted by JdmSti2006 (Post 12132260)
Vehicle Dynamics Control
tracktion and stabilization control , in theory most upgraded suspension parts could take an effort on oem VDC setup ,doubt car will notice it with quicker rack

It does.

STI VI 16 June 2023 12:14 PM


Originally Posted by Gambit (Post 12132261)
It does.

Mate has this been tried by anyone having searched I can't seem to find any evidence one way of the other as to whether it would cause an issue or not. I basically need a new rack and the price is the same for 13:1 or the standard 15:1 rack, but obviously the 13:1 qould feel like an upgrade.

Gambit 16 June 2023 04:28 PM

Look up US forums, that's where I first read about it as I wanted to do it with mine for exact same reasons then was put off by fact you have to drive with vdc off if you want the car to not do anything random....its all down to the steering angle which is used in the vdc calcs, the angles are then wrong with the new rack.

there is a fella local to me done it with his and has issues, obviously the issues are only present when you force the vdc into action...but for me I wasn't for doing it.


The main issue with it is that the traction control kicks on during tight turns without the fix, however in my experience you have to be taking very tight hairpin turns to get it to kick on at all (Like the S at Spelga). For normal/spirited driving its fine. When driving harder, if you turn traction control off then the issue is gone completely- id usually turn off tc anyway when going hard tbh



quote taken from here:-
https://rmsmotoring.com/forum/thread.../#post-3925363



STI VI 19 September 2023 10:50 AM

Gents apprently I need to replace the steering pump as well now, does Don or anyone else have the part number for me please :(

Don Clark 19 September 2023 11:33 AM

https://cimg2.ibsrv.net/gimg/www.sco...ec7497edf9.jpg

forgedmarco 19 September 2023 01:05 PM


Originally Posted by STI VI (Post 12133992)
Gents apprently I need to replace the steering pump as well now, does Don or anyone else have the part number for me please :(

what’s wrong with the pump?

STI VI 19 September 2023 03:30 PM


Originally Posted by Don Clark (Post 12133993)

Thanks Don!

STI VI 19 September 2023 03:33 PM


Originally Posted by forgedmarco (Post 12133995)
what’s wrong with the pump?

Its leaking apparently

hedgecutter 19 September 2023 03:53 PM

Check it's not the small O ring on the pump that is leaking; a cheap fix as pumps are v dear

forgedmarco 19 September 2023 04:48 PM


Originally Posted by STI VI (Post 12133998)
Its leaking apparently

as hedgecutter has said you can buy o-rings to service the pump.

STI VI 21 September 2023 11:12 AM


Originally Posted by forgedmarco (Post 12134001)
as hedgecutter has said you can buy o-rings to service the pump.

great thanks guys any part number for the o ring then I can try that first

forgedmarco 21 September 2023 12:23 PM


Originally Posted by STI VI (Post 12134030)
great thanks guys any part number for the o ring then I can try that first

Not sure if UK is the same but usually the first one to change in the JDM model is 34439FG000, ICP list seal kits for earlier models also so might be worth asking them.
A new crush washer is also good practice and the bolt torqued correctly.

STI VI 21 September 2023 12:47 PM

haha thanks where's Don when you need him 😂


[

QUOTE=Corium;12134052]https://images.indianexpress.com/201...ug-day-759.jpg
https://images.ctfassets.net/ip74mqm...image_meth.jpg[/QUOTE]

Don Clark 21 September 2023 04:11 PM


Originally Posted by STI VI (Post 12134062)
haha thanks where's Don when you need him 😂

As per Forgedmarco ^^^^ 34439FG000 shown below

https://cimg1.ibsrv.net/gimg/www.sco...5394037d28.jpg

apac 22 September 2023 07:28 AM

Is it true that the VAB STi has 11.1 ratio? Is that JDM only or also U.K?

forgedmarco 22 September 2023 09:03 AM


Originally Posted by apac (Post 12134126)
Is it true that the VAB STi has 11.1 ratio? Is that JDM only or also U.K?

They're 13:1

apac 22 September 2023 04:05 PM

Maybe it was just the TS type RA.

forgedmarco 22 September 2023 04:20 PM


Originally Posted by apac (Post 12134133)
Maybe it was just the TS type RA.

Yes they had curved tie rods too, not sure what benefit they have?

Gambit 22 September 2023 10:37 PM


Originally Posted by apac (Post 12134133)
Maybe it was just the TS type RA.

s207 & s208 got the 11:1 racks

STI VI 23 September 2023 02:13 AM

Thanks Gents super helpful as always and saved me money if these O ring solves the leak as the pump isnt keep and at the moment with the new clutch this is turning into a money pit :)


Originally Posted by Don Clark (Post 12134122)
As per Forgedmarco ^^^^ 34439FG000 shown below

https://cimg1.ibsrv.net/gimg/www.sco...5394037d28.jpg



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