Go Back   Australian Ford Forums > Ford Australia Vehicles > Small and Mid Sized Cars > Fiesta, Festiva and Ka

Reply
 
Thread Tools Display Modes
Old 05-01-2020, 06:57 PM   #1
lachiescurr
Starter Motor
 
Join Date: Jan 2020
Location: Warwick
Posts: 1
Default XR4 engine work with a 1.6L gearbox?

Does anyone know if the XR4 2L engine will work on the WQ 1.6L gearbox? I know the gear ratios are different between the 1.6L gearbox and the 2L gearbox
lachiescurr is offline   Reply With Quote Multi-Quote with this Post
Old 06-01-2020, 11:14 AM   #2
russellw
Chairman & Administrator
Donating Member3
 
russellw's Avatar
 
Join Date: Dec 2004
Location: 1975
Posts: 106,646
Community Builder: In recognition of those who have helped build the AFF community. - Issue reason: Raptor: For Continued, and prolonged service to the wider Ford Community 
Default Re: XR4 engine work with a 1.6L gearbox?

While removal and installation steps are different, they are both IB6 transmissions so it shouldn't require a lot of work to make it fit.

The ratios are significantly different:

1.6L is 3.15 / 1.93 / 1.28 / 0.95 / 0.76 with a 4.42 final drive.
The 2L is 3.58 / 2.04 / 1.41 / 1.11 / 0.88 with a 3.82 final drive.
__________________

__________________________________________________

Observatio Facta Rotae


russellw is offline   Reply With Quote Multi-Quote with this Post
Old 18-01-2020, 12:08 AM   #3
Luke Plaizier
Lukeyson
Donating Member1
 
Luke Plaizier's Avatar
 
Join Date: Mar 2005
Location: Maitland, NSW
Posts: 2,580
Default Re: XR4 engine work with a 1.6L gearbox?

No, sorry, it won't.

The 2.0 is a Mazda L series engine and uses that bell housing pattern. The 1.6 is a Sigma engine and has a different bell housing. The transmissions are similar - the Sigma engines use the IB5 and IB6 transmissions, which continued on to the ST180 1.6 Ecoboost and I think also the current 1.5. The L engines in the XR4 use the IB5+ transmission which has the unique bell housing for the L series Mazda engines. The IB5+ is the weakest link in the XR4 and the transmissions are prone to failure - mainly the differential, which when it goes splits the case and kills the trans for good. The are no other known applications of the IB5+ transmission with a L duratec. Combine the rareness with the fragility, and used working IB5+ gearboxes are worth a pretty penny. A few people are able to get an LSD in them with stronger gearing before they self-detinate and get a lot more life out of them. There's also a sequential IB5+ sold out of England - if you are super keen.

Hence why, while there are some compromises, getting a Focus MTX75 transmission into an XR4 is a cheaper option, as it is a much stronger gearbox, and can be found for about $200. It just needs some customisations which can cost a little bit, but is still less than an IB5+ where the cheapest box I've seen is around $600.


Luke
__________________
If the human brain was simple enough to understand, we'd be too simple to understand it.

Last edited by Luke Plaizier; 18-01-2020 at 12:16 AM.
Luke Plaizier is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Old 06-02-2020, 12:00 PM   #4
Luke Plaizier
Lukeyson
Donating Member1
 
Luke Plaizier's Avatar
 
Join Date: Mar 2005
Location: Maitland, NSW
Posts: 2,580
Default Re: XR4 engine work with a 1.6L gearbox?

Some useful links:

Ford Bellhousing Patterns
https://en.wikipedia.org/wiki/List_o...using_patterns

Ford Duratec Branded Engines:
https://en.wikipedia.org/wiki/Ford_Duratec_engine

Ford Sigma Engine:
https://en.wikipedia.org/wiki/Ford_Sigma_engine

Mazda L Engine
https://en.wikipedia.org/wiki/Mazda_L_engine


Luke
__________________
If the human brain was simple enough to understand, we'd be too simple to understand it.
Luke Plaizier is offline   Reply With Quote Multi-Quote with this Post
This user likes this post:
Reply


Forum Jump


All times are GMT +11. The time now is 07:03 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Other than what is legally copyrighted by the respective owners, this site is copyright www.fordforums.com.au
Positive SSL