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#559862 - 14/02/19 11:02 PM Re: These models don't come to market too often. [Re: +8Rich]
Ray Offline

Talk Morgan Addict

Registered: 05/04/14
Posts: 3994
Loc: Llanelli
The 1.8 duratec is rated at 125 bhp. On paper!
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.+8 Now gone for a 1800 4/4. Duratec in bright yellow.

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#559903 - Yesterday at 09:43 AM Re: These models don't come to market too often. [Re: +8Rich]
IcePack Online   content
Learner Plates Off!

Registered: 17/07/11
Posts: 403
Thank you Salmo. Very interesting. I have to admit on my car 1 st is quite a challenge as when really trying you get to 6000 rpm what feels like almost instantly. The other gears are fine, giving a lively performance. 5th is useable at 40mph and at 70mph indicates only an extra 300 rpm from the original 3.73 diff. The car is also shod with 275/70/R15 which I guess make a small difference too.
Imho just goes to show how each car can be made to suit the driver. All part of the fun of ownership.
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4/4 Ivory 4.1:1 axle, Jaguar XE R-Sport.

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#560009 - Yesterday at 05:03 PM Re: These models don't come to market too often. [Re: +8Rich]
cerealsurfer Offline
Talk Morgan Expert

Registered: 09/10/06
Posts: 2329
The main difference is that the Ford box was designed for the transit... hence very low ratio first and second... once your into third things begin to even up as most gearboxes have a 1:1 4th.

The Mazda box was designed for the Mx5 - something much closer to the Morgan so unsurprisingly they have a higher 1st and 2nd ratio’s.

That said - both the MX5 and certainly the transit are heavier and the Morgan’s life is likely to have a lower duty cycle of cruising... so the 3.xx rear diff’s are used to in part fix the imperfect ratio issues you have with mainstream gearboxes designed for cars with different weight/usage/torque characteristics.
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#560015 - Yesterday at 05:09 PM Re: These models don't come to market too often. [Re: +8Rich]
cerealsurfer Offline
Talk Morgan Expert

Registered: 09/10/06
Posts: 2329
The 2.2:1 1st gear ratio of my 72 4/4 which uses a Quaife QBE15Z gearbox is ideal for the 2lt Zetec it has combined with the 4.1 rear diff. The closer ratio’s i’ve Selected allow much better use of the engine curves either driving at the top end or on the torque curve.

The 2.03:1 and 4.1 diff of my 275bhp 2lt Zetec requires a considerably more aggressive start that makes most people cry in sympathy.... but it does 60+ in first and gets there very very quickly!!
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