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05-01-2020, 05:57 PM
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Starter Motor
Join Date: Jan 2020
Location: Warwick
Posts: 1
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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
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06-01-2020, 10:14 AM
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Chairman & Administrator
  
Join Date: Dec 2004
Location: 1975
Posts: 107,265
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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.
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 Observatio Facta Rotae
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17-01-2020, 11:08 PM
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Lukeyson
 
Join Date: Mar 2005
Location: Maitland, NSW
Posts: 2,584
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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
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If the human brain was simple enough to understand, we'd be too simple to understand it. Last edited by Luke Plaizier; 17-01-2020 at 11:16 PM. |
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06-02-2020, 11:00 AM
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Lukeyson
Join Date: Mar 2005
Location: Maitland, NSW
Posts: 2,584
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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
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XR4 engine work with a 1.6L gearbox?
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