↓ Advertise on Defender2 ↓

Home > Puma (Tdci) > LT230 1.4 ratio on PUMA
Post Reply  Down to end
Page 1 of 2 12>
Print this entire topic · 
Okan



Member Since: 17 Oct 2016
Location: Geneva
Posts: 138

Switzerland 2009 Defender 110 Puma 2.4 SW Stornoway Grey
LT230 1.4 ratio on PUMA
Hi all PUMA users!

I just destroyed my Transfer LT230 on my 2.4 PUMA 2009. I will replace it but I have got the choice of changing the ratio. Stock ratio is 1.211 and I ask to myself if it should be a good thing to install a 1.410 ratio for my heavyloaded (3300kgs) and remaped with bigger intercooler (175 horsepower)TD4.

If any of you has a feedback of a 2.4 with 1.410 ratio LT230 it should be nice.

Best regards
Post #571444 17th Oct 2016 9:31am
View user's profile Send private message View poster's gallery Reply with quote
taazzukcb



Member Since: 30 Aug 2013
Location: Derbyshire
Posts: 663

United Kingdom 2004 Defender 110 Td5 DCPU Stornoway Grey
I think a 1.4 on a Puma will make the gears very short. 1st will almost become totally redundant.

Unless your really struggling, I'd leave it as 1.2 and do the tweaks you suggested and see how it goes.

Puma, on a 1.4, plus a remap etc, I think you'd quickly regret!
Post #571449 17th Oct 2016 9:52am
View user's profile Send private message View poster's gallery Reply with quote
taazzukcb



Member Since: 30 Aug 2013
Location: Derbyshire
Posts: 663

United Kingdom 2004 Defender 110 Td5 DCPU Stornoway Grey
Unless you're running some BIG rubber!
Post #571450 17th Oct 2016 9:52am
View user's profile Send private message View poster's gallery Reply with quote
Okan



Member Since: 17 Oct 2016
Location: Geneva
Posts: 138

Switzerland 2009 Defender 110 Puma 2.4 SW Stornoway Grey
I don't think running bigger tires than 33'

That's why I wanted to know if someone allready has a feedback with 1.4 ratio on puma. I don't want to regret after ordering.
Post #571472 17th Oct 2016 12:02pm
View user's profile Send private message View poster's gallery Reply with quote
pannawonica



Member Since: 21 Nov 2010
Location: Clackline Western Australia
Posts: 568

Australia 
I occasionally have the need to tow atleast ( Very Happy Thumbs Up ) 3.5 tons with @ 175bhp although it's the torque you need. This include some good grades, standard transfer box is all you need! With six gears easy with still a good turn of speed for the highway! Very Happy
Post #571682 18th Oct 2016 1:45am
View user's profile Send private message View poster's gallery Reply with quote
Okan



Member Since: 17 Oct 2016
Location: Geneva
Posts: 138

Switzerland 2009 Defender 110 Puma 2.4 SW Stornoway Grey
Thanks!

The reason why I was hesitating is because I used the ratio calculator on ashcroft website. They tell that the ideal range is 2700 rpm at 70mph on 6th gear. But with the 1.2 and 33 tires is only 2269 rpm at 70mph on 6th gear. With the 1.4 and 33 tires is 2642rpm at 70 mph on 6th gear.

About my personal experience on 6th gear on highway with my actual setup I was around 2000 rpm at 62 mph on 6th and around 2500 rpm at 75mph. So I m far away the ideal 2700 preconized by ashcroft.
Post #571693 18th Oct 2016 6:57am
View user's profile Send private message View poster's gallery Reply with quote
NMBRPL8



Member Since: 07 Jul 2015
Location: Australia
Posts: 144

Australia 
I apologize if i derail the thread of the OP but is there a ratio option to below the stock to get taller gearing?
Itd be great to be able to sit at 130kph and chew less juice
Post #571714 18th Oct 2016 11:05am
View user's profile Send private message View poster's gallery Reply with quote
Okan



Member Since: 17 Oct 2016
Location: Geneva
Posts: 138

Switzerland 2009 Defender 110 Puma 2.4 SW Stornoway Grey
Not sure you will use less juice but there is a 1.003 ratio on ashcroft website but it s out of stock...
Post #571720 18th Oct 2016 11:21am
View user's profile Send private message View poster's gallery Reply with quote
blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17238

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
I imagine that it would be almost undrivable on normal size wheels and tyres.

The standard ratios are well matched to the TDCi engine.
Post #571727 18th Oct 2016 11:34am
View user's profile Send private message View poster's gallery Reply with quote
jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7899

 2011 Defender 110 Puma 2.4 USW Stornoway Grey
i regularly tow 3.5T with a 1.2 box on a 2.4puma. if the t box went with my 33" tyres i would replace with 1.2 again. mine runs outside the ideal rev range no problem at 60 on the motorway Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #571898 18th Oct 2016 8:49pm
View user's profile Send private message View poster's gallery Reply with quote
Okan



Member Since: 17 Oct 2016
Location: Geneva
Posts: 138

Switzerland 2009 Defender 110 Puma 2.4 SW Stornoway Grey
Hi!

Do you know your rpm at 62 and 75 mph when you are towing?

regards
Post #571941 18th Oct 2016 10:14pm
View user's profile Send private message View poster's gallery Reply with quote
pannawonica



Member Since: 21 Nov 2010
Location: Clackline Western Australia
Posts: 568

Australia 
Been up too 140 km/h ( on a private road towing...wink.) same RPM as not towing. However I am well aware that it takes some stopping ! Very Happy Thumbs Up Whistle
Post #571974 19th Oct 2016 7:17am
View user's profile Send private message View poster's gallery Reply with quote
Okan



Member Since: 17 Oct 2016
Location: Geneva
Posts: 138

Switzerland 2009 Defender 110 Puma 2.4 SW Stornoway Grey
Nice! Are you remaped?
Post #571998 19th Oct 2016 9:27am
View user's profile Send private message View poster's gallery Reply with quote
jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7899

 2011 Defender 110 Puma 2.4 USW Stornoway Grey
it actually tows better at 65 than 60 apparently as its sits in the torque range better Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #572560 21st Oct 2016 8:56pm
View user's profile Send private message View poster's gallery Reply with quote
pannawonica



Member Since: 21 Nov 2010
Location: Clackline Western Australia
Posts: 568

Australia 
[quote="Okan"]Nice! Are you remaped?[/quote] yes with the other usual mods, I have found 82C thermostat with the soft spring helps especially with towing! Very Happy Thumbs Up
Post #572613 22nd Oct 2016 7:54am
View user's profile Send private message View poster's gallery Reply with quote
Post Reply  Back to top
Page 1 of 2 12>
All times are GMT + 1 Hour

Jump to  
Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
DEFENDER2.NET RSS Feed - All Forums