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fab.rob



Member Since: 03 Nov 2018
Location: Wokingham
Posts: 29
United Kingdom 2013 Defender 110 Puma 2.2 XS CSW Santorini Black
Puma tdci fuel economy improvements
Just thought I would share with you all the journey towards better fuel economy on my 2013 Defender 110 puma Muddy Funster. When I purchased her the economy was atrocious at around 16 Mpg,the first item on the agenda was a remap.
After looking around a great deal and seeing that the vast array of different companies professing to have the best map for Puma I decided to use Celtic tuning. This was based on the fact that I figured the engine is just a transit engine and nothing particularly unusual. Celtic did the job for £250 which was a very good price, thay also have a great deal of experience with transits as well which was a bonus. I then removed the huge full length roof rack (flat dog) which weighed around 30 to 40 kgs. With these two jobs done this has brought the Mpg up to 25 to 26 Mpg. This weekend I have fitted a BAS Hi flow intercooler, I will post again when I have the results from the next couple of tank fulls of fuel.
Post #755969 3rd Feb 2019 5:02pm
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Badger110



Member Since: 06 Feb 2018
Location: South hams
Posts: 1039
United Kingdom 2011 Defender 110 Puma 2.4 USW Buckingham Blue
Interesting you went for a transit remap...what was the output etc?
Post #755975 3rd Feb 2019 5:08pm
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Cupboard



Member Since: 21 Mar 2014
Location: Suffolk
Posts: 2971
United Kingdom 2011 Defender 110 Puma 2.4 HT Corris Grey
16MPG? There's something seriously wrong there, you should be getting about twice that.

Mine's a 2.4 but over the last 3 fill ups it's averaged 31MPG. It's happier when running on premium and in the summer, but 31 on cheap diesel in winter is about right for me.
Post #756007 3rd Feb 2019 6:24pm
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lordackers



Member Since: 05 Dec 2018
Location: Leeds
Posts: 47
United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Bonatti Grey
fab.rob, that's thinking outside the box, I'd never had thought about a transit remap specialist, I'll watch your post with interest and see how you get on with it
Post #756011 3rd Feb 2019 6:32pm
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6298
England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
you might be right about it being a transit engine but the rest of the drive train isn't which might explain why the LR map isn't the same as the transit map.

I'm not suggesting it won't work but you have to ask why it was changed in the first instance?
Post #756138 4th Feb 2019 9:43am
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lordackers



Member Since: 05 Dec 2018
Location: Leeds
Posts: 47
United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Bonatti Grey
That's a fair point Caterham, but will be interesting to see with a long term test?
Post #756144 4th Feb 2019 10:25am
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bankz5152



Member Since: 02 Feb 2017
Location: South London/North Kent
Posts: 2163
2004 Defender 110 Td5 DCPU Epsom Green
That just doesnt seem wise to me. While the engine may well be the same there are a huge amount of things that are not the same.

Pumas should get roughly 25 - 30mpg on average.

Fitting a larger IC wont change the MPG much either, not enough to save you £500 in fuel anyway. Instagram @defender_ventures
Empire Tuning - Agent
Post #756145 4th Feb 2019 10:26am
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6298
England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
again I'm not suggesting it's going to make a world of difference but I understand torq is limited by varying amounts in the lower gears with full torq only available in 4,5 and 6th.

I also believe there's gear harmonisation which relates smoothing out gear changes which works with the clutch switch. will this be the same for a front wheel drive and 4 wheel drive?

again I'm not suggesting these are game changers but it does point towards a transit map not being ideal for a defender?
Post #756146 4th Feb 2019 10:30am
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fab.rob



Member Since: 03 Nov 2018
Location: Wokingham
Posts: 29
United Kingdom 2013 Defender 110 Puma 2.2 XS CSW Santorini Black
I say it was a transit map, it was a map that was developed by them for Defender but thay had a great deal of experience with transits. And as I say the price was right in as much as it was not the huge sums the likes of alive were charging (just because they have done a large number of new defenders off of the production line})
Post #756336 4th Feb 2019 8:00pm
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bankz5152



Member Since: 02 Feb 2017
Location: South London/North Kent
Posts: 2163
2004 Defender 110 Td5 DCPU Epsom Green
Not seen Dynachip or TD5inside? £250 or less Instagram @defender_ventures
Empire Tuning - Agent
Post #756341 4th Feb 2019 8:12pm
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Likeomg



Member Since: 29 Jun 2012
Location: Lake District / Newcastle
Posts: 2640
2010 Defender 90 Puma 2.4 HT Stornoway Grey
I really don't think a map removing a roof rack would see that much significant gains...

before mapping id of checked everything over and made sure the car was 100% before mapping.
Post #756343 4th Feb 2019 8:15pm
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Sulisuli



Member Since: 30 Oct 2016
Location: South west
Posts: 4795
United Kingdom 2015 Defender 90 Puma 2.2 HT Corris Grey
Certainly massive gains there for two simple mods..... 2015 HT XS 90
2008 SVX 90
2000 XS TD5 90
Post #756347 4th Feb 2019 8:19pm
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4785
United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
Something definitely wrong with 16mpg (unless driven on the speed limiter everywhere with 15 psi in the tyres.) Laughing 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton
Post #756366 4th Feb 2019 9:11pm
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fab.rob



Member Since: 03 Nov 2018
Location: Wokingham
Posts: 29
United Kingdom 2013 Defender 110 Puma 2.2 XS CSW Santorini Black
Don't know what to tell you guys but the s the figures. I did also add about 5 psi to tyres all round so now sitting at around 38psi
Post #756399 4th Feb 2019 10:13pm
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diduan



Member Since: 13 Oct 2016
Location: Central Balkan
Posts: 260
Bulgaria 
I know this is an old thread but I am having significant improvement of fuel consumption recently. Usually my 110SW was always at about 25-26 mpg. The last few full tanks have brought me at 30-31 mpg. I can't tell the exact reason because I did change few things since lockdown.
1. Air filter mod - great thing, I drive more in low rpms as it just has the power.
2. Switched the gas station from Shell to independent with LiquiMolly additive. Defender 110 SW MY2011 2.4tdci decat, no EGR
Jeep Wrangler YJ 1990 4.0. Front 78' Dana 60, Rear CUCV 14 bolt
Post #851995 25th Aug 2020 7:25pm
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