Notices
ScoobyNet General General Subaru Discussion

6 speed conversion

Thread Tools
 
Search this Thread
 
Old 19 January 2019, 10:56 AM
  #1  
funkyrimpler
Scooby Regular
Thread Starter
 
funkyrimpler's Avatar
 
Join Date: Jun 2009
Posts: 495
Likes: 0
Received 0 Likes on 0 Posts
Default 6 speed conversion

Hi Folks, I have a Type R V4 with a 2.1 stroker (about 350hp) and the original 5 speed DCCD. I want to convert the car to a JDM 6 speed DCCD box with plans for future power gains.
I've had some good advice from members on typera.com and from a couple of tuners, but each answer throws up another question. First things, first, where can i get a good JDM gearbox from? They seem a bit thin on the ground.
The Type R has an R180 rear diff, and iirc 4.44 gearing.
I think i need the following:
6 speed gearbox with & Propshaft
6 speed Gear selector and linkage
6 speed Starter motor
6 speed clutch and flywheel
Front driveshafts with male connectors
Cradle

Do I need anything else, and are there compatibility issues fitting a later box to an MY97/98 GC8??

Many thanks
Old 19 January 2019, 12:27 PM
  #2  
Vxr2010
Scooby Regular
 
Vxr2010's Avatar
 
Join Date: Oct 2015
Location: Herts
Posts: 2,320
Received 270 Likes on 234 Posts
Default

I’m sure you car is a great car but sometimes with mods on this level is it worth getting one that comes like that already , preferably factory rather than some one else doing it , i know people do the gearbox swap but it sounds like a lot of work hassle and cost , only a thought what about a good jdm import newer car ?
Old 19 January 2019, 02:57 PM
  #3  
Turbovin
Scooby Regular
iTrader: (2)
 
Turbovin's Avatar
 
Join Date: Feb 2005
Location: Sweden
Posts: 678
Received 37 Likes on 31 Posts
Default

You can use your original front driveshafts with these https://importcarparts.co.uk/parts-info?id=9593&cat=96&sub=183&sec=349&var=32&dc=0&ge n=&searchKey=&searchPart= I'm not sure if it's fits all 2004 on 6 speeds but on my 2005 Spec C gearbox it did at least. The newer driveshafts are probably stronger though so it's your choice.

The rear diff with the correct gearing for the 6 speed is needed.

The gearbox mount should be for the 6 speed also.

Last edited by Turbovin; 19 January 2019 at 03:00 PM.
Old 19 January 2019, 06:07 PM
  #4  
rickybobby
Scooby Regular
 
rickybobby's Avatar
 
Join Date: May 2016
Location: Scunthorpe
Posts: 381
Likes: 0
Received 2 Likes on 1 Post
Default

you'll need the 3.9 R180 rear diff too, and a prayer mat that it never goes wrong as theyre notoriously difficult to find, and ultimately expensive when you do.
Old 19 January 2019, 09:13 PM
  #5  
S744hdv
Scooby Regular
iTrader: (1)
 
S744hdv's Avatar
 
Join Date: Nov 2012
Location: Worcestershire
Posts: 492
Likes: 0
Received 0 Likes on 0 Posts
Default

I've got a 6 speed jdm dccd box in my type r,you can still use the 5 speed clutch/flywheel and starter if its up to handling your target power.
just get the stub converters from icp so you don't need to change front driveshafts,about £125 When I bought them.
keep an eye out for Matty b's breakers he normally gets them in now and again and will sell you the box,diff,prop and linkage.
If you need to upgrade your clutch and flywheel then buy new 6 speed set,If not just stick yours in then you'll be good to go.
Old 21 January 2019, 09:44 PM
  #6  
funkyrimpler
Scooby Regular
Thread Starter
 
funkyrimpler's Avatar
 
Join Date: Jun 2009
Posts: 495
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks for the replies lads, some good info there. I'm looking around now. I deffo need to 3.9 rear diff and my Type R has a 4.444.
Also, the link to the front axle adaptors may come in handy. I'll keep you posted of any progress
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
scooby kid
General Technical
12
14 November 2011 09:24 PM
WhiteWagonMan
Wanted
17
03 November 2011 10:34 PM
Jeem
General Technical
7
09 February 2011 07:27 PM
RB5 Boyo
Drivetrain
17
13 April 2009 11:37 PM



Quick Reply: 6 speed conversion



All times are GMT +1. The time now is 05:03 AM.