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New
by Rex_tulips - 30/07/25 07:59 PM
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Forums34
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Most Online1,046
Aug 24th, 2023
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Joined: Apr 2014
Posts: 5,181 Likes: 2
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.+8 Now gone for a 1800 4/4. Duratec in bright yellow.
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Joined: Jul 2007
Posts: 26,763 Likes: 425
Member of the Inner Circle
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Member of the Inner Circle
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+2. My 1994 Zetec 4/4 didn't knock but it had been remapped
JohnV6
2022 CX Plus Four
2025 MG ZS EV aka Trigger
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Joined: Oct 2014
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OP
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Different sub-subject:
Does the +4 and the 4/4 (2011 production, 1600 Sigma engine) have the same gearbox?
My 4/4 misses lots of power to use the higher gears in a sporty way.
I did some 3000km last two weeks and drove some great Alpine roads including the Col de la Bonnette and the Passo Stelvio. I would have preferred a different selection of gears (and better weather conditions).
Hannes
once: Green M3W; 2013
now: Red 4/4 Sport; 2011
and some practical cars for use in real life
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Joined: Feb 2011
Posts: 14,009
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Member of the Inner Circle
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The answer is yes they do. I had the same problem with my 2010 4/4 Sport. 5th gear was not very useable. I changed my differential for the Competition 4.11:1 version which made a significant difference.
Jays
Former Morgan owner. Gone but hopefully not forgotten!
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Joined: Sep 2011
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Member of the Inner Circle
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John. Do you remember what the standard ratio is? What sort of costs are involved in a swap? And did you re-calibrate the speedo?
Peter ![[Linked Image]](http://bradley.it/public_images/drive.jpg)
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Joined: Feb 2011
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Peter, the standard ratio was 3.73:1. I paid Mike Duncan around £1,000 for the job as far as I can remember. Ben Duncan calculated the adjusted speedo code for me. It was fairly accurate but I ended up tweaking it until it was nearly spot on.
Jays
Former Morgan owner. Gone but hopefully not forgotten!
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Joined: Sep 2009
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Talk Morgan Guru
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Talk Morgan Guru
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Would it be possible to swap the gearbox of a 2011 4/4 and replace it with the Mazda box which is assembled on the later 4/4s? One could benefit of the more reasonable gear ratios. And, would it cost more tha changing the diff if considering a used Mazda gearbox?
'14 4/4 graphite grey
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Joined: Sep 2011
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I thought the 2011 4/4 used the Mazda box.
Peter
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Joined: Aug 2013
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Peter, I maybe wrong but I think the Mazda box was used from 2012.
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Joined: Oct 2014
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OP
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I thought the 2011 4/4 used the Mazda box. Mine (6/2011) does not have the Mazda box.
Hannes
once: Green M3W; 2013
now: Red 4/4 Sport; 2011
and some practical cars for use in real life
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