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Changing final ratio of the rear axle #343096
27/02/16 11:53 AM
27/02/16 11:53 AM
Joined: Dec 2011
Posts: 304
South West France
C
CBY Offline OP
Learner Plates Off!
CBY  Offline OP
Learner Plates Off!
C

Joined: Dec 2011
Posts: 304
South West France
AR Motorsport proposes crown Wheel and pinion with higher ratio: 4.1:1 and 4.33:1

http://www.morgan-motor.co.uk/mmc/shop/index.php/motorsport-parts/crown-wheel-and-pinion-4-33-1.html

Have you made this change? Feedback?


Regards
2005 PLUS 4
Re: Changing final ratio of the rear axle [Re: CBY] #343097
27/02/16 11:56 AM
27/02/16 11:56 AM
Joined: Jan 2012
Posts: 14,976
Perth, WA, Australia
Richard - Aus Offline
Member of the Inner Circle
Richard - Aus  Offline
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Joined: Jan 2012
Posts: 14,976
Perth, WA, Australia
I think Jay's did this and if I recall correctly stated it was the best mod he has performed.


Richard
1976 4/4 4 Seater
Re: Changing final ratio of the rear axle [Re: CBY] #343098
27/02/16 11:57 AM
27/02/16 11:57 AM
Joined: Mar 2014
Posts: 533
Berkshire/Oxon & Devon
JB62 Online NoMood
Talk Morgan Regular
JB62  Online NoMood
Talk Morgan Regular

Joined: Mar 2014
Posts: 533
Berkshire/Oxon & Devon
The 4.1:1 conversion on the 4/4 is a fabulous modification. Really changes the whole character of the car.


V8 Speedster ( current)
4/4 Competition spec (5 years)
4/4 4str Kent ( 10 years)
Re: Changing final ratio of the rear axle [Re: Richard - Aus] #343099
27/02/16 12:12 PM
27/02/16 12:12 PM
Joined: Jan 2012
Posts: 14,976
Perth, WA, Australia
Richard - Aus Offline
Member of the Inner Circle
Richard - Aus  Offline
Member of the Inner Circle

Joined: Jan 2012
Posts: 14,976
Perth, WA, Australia
Originally Posted By Richard - Aus
I think Jay's did this and if I recall correctly stated it was the best mod he has performed.


Found Jay's feedback


Richard
1976 4/4 4 Seater
Re: Changing final ratio of the rear axle [Re: CBY] #343262
28/02/16 08:32 AM
28/02/16 08:32 AM
Joined: Dec 2011
Posts: 304
South West France
C
CBY Offline OP
Learner Plates Off!
CBY  Offline OP
Learner Plates Off!
C

Joined: Dec 2011
Posts: 304
South West France
Thank you for the answers and the link.


Regards
2005 PLUS 4
Re: Changing final ratio of the rear axle [Re: JB62] #343268
28/02/16 08:53 AM
28/02/16 08:53 AM
Joined: Apr 2008
Posts: 9,155
Gloucestershire, UK
Hamwich Offline
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Hamwich  Offline
Needs to Get Out More!

Joined: Apr 2008
Posts: 9,155
Gloucestershire, UK
Originally Posted By JB62
The 4.1:1 conversion on the 4/4 is a fabulous modification. Really changes the whole character of the car.


4/4s always used to have 4.1:1 back axles, i think they might have gone to 3.7:1 to standardise with the rest of the range, but to my mind there's absolutely no doubt that 4.1:1 is the perfect ratio for a 4/4


Tim H.
1986 4/4 VVTi Sport, 2002 LR Defender, 1957 R4 CV, 2005 Ferrari Vipar
Re: Changing final ratio of the rear axle [Re: CBY] #343289
28/02/16 09:52 AM
28/02/16 09:52 AM
Joined: Jul 2011
Posts: 646
I
IcePack Online content
Talk Morgan Regular
IcePack  Online Content
Talk Morgan Regular
I

Joined: Jul 2011
Posts: 646
1) really transforms the car.
2) unfortunately the cutting of the gears is not the best, so some are a little noisy.


4/4 Ivory 4.1:1 axle, Jaguar XE R-Sport.
Re: Changing final ratio of the rear axle [Re: CBY] #343309
28/02/16 11:45 AM
28/02/16 11:45 AM
Joined: Oct 2015
Posts: 94
Norway
O
oylo Offline
Just Getting Started
oylo  Offline
Just Getting Started
O

Joined: Oct 2015
Posts: 94
Norway
How can I check the gear ratio that is on the rear axle?


-----------
2005 4/4.
Re: Changing final ratio of the rear axle [Re: oylo] #343313
28/02/16 12:18 PM
28/02/16 12:18 PM
Joined: Oct 2014
Posts: 4,280
Austria, Vienna area
The Austrian Offline
Part of the Furniture
The Austrian  Offline
Part of the Furniture

Joined: Oct 2014
Posts: 4,280
Austria, Vienna area
Originally Posted By oylo
How can I check the gear ratio that is on the rear axle

Check your owners book. I think the ratio is listed there - which does not necessarily mean the it is identical in reality. (.... it's a Morgan, Sir!)


Hannes
once: Green M3W; 2013
now: Red 4/4 Sport; 2011
and some practical cars for use in real life
Re: Changing final ratio of the rear axle [Re: CBY] #343320
28/02/16 12:50 PM
28/02/16 12:50 PM
Joined: Sep 2009
Posts: 81
Germany
Andre Offline
Just Getting Started
Andre  Offline
Just Getting Started

Joined: Sep 2009
Posts: 81
Germany
Crown wheel and pinion is 1200 €, plus at least 800 € for the conversion. That's a lot of money. The question is, is worth the money?



4/4 sport
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