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hank Member Since: 12 Sep 2016 Location: South Wales/Middle East Posts: 999 ![]() ![]() ![]() |
Having researched myself into a bit of a pickle I am after the benefit of your experience.
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bankz5152 Member Since: 02 Feb 2017 Location: South London/North Kent Posts: 1443 ![]() ![]() |
1.3 best of both worlds. Love mine to bits. Happily cruises at 70 "as if its 60" and so forth Instagram @defender_ventures |
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excossack Member Since: 22 Feb 2012 Location: North West Posts: 4215 ![]() ![]() ![]() |
TD5 110/ with 235/85 R16 ATs
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Waldorf Member Since: 13 Aug 2019 Location: Aalter Posts: 4 ![]() ![]() ![]() |
First question should be: what do you want to achieve? How do you use the car? The Puma has the 1.2 transfer box, so anything shorter will be undergeared. |
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hank Member Since: 12 Sep 2016 Location: South Wales/Middle East Posts: 999 ![]() ![]() ![]() |
Vehicle's predominant use is around town with some motorway. Occasional off road and towing.
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excossack Member Since: 22 Feb 2012 Location: North West Posts: 4215 ![]() ![]() ![]() |
Ashcrofts have a calculator on their website that will show rpm vs mph which might assist you? 1999 Defender TD5 110
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excossack Member Since: 22 Feb 2012 Location: North West Posts: 4215 ![]() ![]() ![]() |
https://www.ashcroft-transmissions.co.uk/calc/ratio_calc.html 1999 Defender TD5 110
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geobloke Member Since: 06 Nov 2012 Location: North Wales, UK Posts: 1603 ![]() ![]() |
Just checking here as I do not actually know the answer. Did the Puma come with 1:1.2 as standard or a 1:1.4 like the TD5s did as standard? |
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Mo Murphy Member Since: 01 Jun 2008 Location: Letchworth Garden City, Herts Posts: 1175 ![]() ![]() ![]() |
Move to 1.3 or 1.4 - high box gearing is lower- more revs on the motorway- first gear is lower so easier to pull away with a heavy load on a steep hill.
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Mo Murphy Member Since: 01 Jun 2008 Location: Letchworth Garden City, Herts Posts: 1175 ![]() ![]() ![]() |
Puma comes with 1.2 as standard.
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geobloke Member Since: 06 Nov 2012 Location: North Wales, UK Posts: 1603 ![]() ![]() |
Thanks Mo |
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hank Member Since: 12 Sep 2016 Location: South Wales/Middle East Posts: 999 ![]() ![]() ![]() |
Thanks I hadn't seen that. 1.2 ratio, 6th gear @ 80mph = 2593rpm 1.1 ratio, 6th gear @ 80mph = 2356rpm -237rpm difference. 1.2 ratio, 1st gear @ 10mph = 2378rpm 1.1 ratio, 1st gear @ 10mph = 2160rpm -218rpm difference. Worth it? > 110 XS Double Cab > Instagram @simonlanemind |
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geobloke Member Since: 06 Nov 2012 Location: North Wales, UK Posts: 1603 ![]() ![]() |
Really depends on how many motorway miles you do, that's where you'll see the difference I suspect. |
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sako243 Member Since: 08 Jul 2014 Location: Wales Posts: 697 ![]() ![]() ![]() |
I've had a 1.2 transfer box in my 300Tdi 110 on 32" tyres for the last decade or so and wouldn't go back to a 1.4 although I do do long motorway journeys. The only minor downside is that first is quite tall now (but they dropped first on the Puma) and that makes hill starts with 3.5 tonnes behind you a little tricky.
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