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Naks

Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2644

2010 Defender 90 Puma 2.4 SW Alpine White

JCB 4.4 Industrial Agri Engine Conversion

That's one odd engine conversion... 😅

--
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged

Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

10th Dec 2024 7:32am

34064

Member Since: 12 Dec 2023
Location: South Central
Posts: 190

I watched the video the other day and think what DPUK has done is brilliant different to all the boring engine swaps that are so common and still keeping it British didn't sound to different from a old Tdi too 110 Td5 Ex Utilities slowly converting into a pop top camper one day

Build thread:https://www.defender2.net/forum/post1024784.html#1024784

10th Dec 2024 7:51am

Martin
Site Admin

Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6609

2015 Defender 90 Puma 2.2 XS CSW Montalcino Red

If it's good enough for a land speed record

1988 90 Td5 NAS soft top

2015 D90 XS SW

10th Dec 2024 7:58am

MarkBrown

Member Since: 03 Oct 2022
Location: Mid Wales
Posts: 468

1983 Defender 110 Other HT Auto Keswick Green

I saw that, very well done I thought. 1983 110 automatic OM606

10th Dec 2024 8:03am

rustandoil

Member Since: 08 Sep 2012
Location: Cotswolds
Posts: 743

2005 Defender 110 Td5 XS DCPU Bonatti Grey

Very often new crate engines available here....

https://ams.uk/jcb.cgi

10th Dec 2024 9:27am

Chicken Drumstick

Member Since: 17 Aug 2020
Location: Near MK
Posts: 751

34064 wrote:
I watched the video the other day and think what DPUK has done is brilliant different to all the boring engine swaps that are so common and still keeping it British didn't sound to different from a old Tdi too

I'm sure its a good project for YouTube views.

But I bet it is hugely expensive to end up with only 150hp. What would such a conversion cost? £10-15k or more?

I'd guess short on rpms too when driving. Might be ok, but hard to tell from a video.

The extended bump stops to stop the axle hitting the sump are not a great solution either. You wouldn't want to risk getting it airborne off road or anything.

11th Dec 2024 4:36pm

34064

Member Since: 12 Dec 2023
Location: South Central
Posts: 190

Yeah I get it might not be your cup of tea but personally I think it's great yeah it might not have tons of power but it will go on forever and it's different but it's also the first one he's done so will always be room for improvement 110 Td5 Ex Utilities slowly converting into a pop top camper one day

Build thread:https://www.defender2.net/forum/post1024784.html#1024784

11th Dec 2024 6:26pm

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20413

Very interesting, I’d imagine JCB could make a lot of money on engines to be retrofitted to older models. $W33T $0U7H3RN $UG4R
🇬🇧🏴󠁧󠁢󠁥󠁮󠁧󠁿🏴󠁧󠁢󠁷󠁬󠁳󠁿🏴󠁧󠁢󠁳󠁣󠁴󠁿🇮🇪🇺🇸⛽️🛢️⚙️🧰💪

11th Dec 2024 7:52pm

Chicken Drumstick

Member Since: 17 Aug 2020
Location: Near MK
Posts: 751

34064 wrote:
Yeah I get it might not be your cup of tea but personally I think it's great yeah it might not have tons of power but it will go on forever and it's different but it's also the first one he's done so will always be room for improvement

First he's done? I thought that was all his channel did was engine swaps pretty much?

As for go forever..... well so do Tdi's and Td5's really. Plenty of both with more than quarter million miles on.

I'm not knocking it as an idea, but for a low annual milage urban run about (which is all he has built really). I'm betting it isn't value for money.

12th Dec 2024 10:21am

rallysteve

Member Since: 10 Feb 2014
Location: Cumbria
Posts: 2231

2002 Defender 110 Td5 DCPU Keswick Green

the 150hp value isn't really that relevant, hp numbers are normally quite low for agri/industrial engines as are low revving (and Power = Torque x Speed). The 650Nm torque output for that engine is not to be sniffed at however! 02' 110 TD5 Double Cab Rebuild Thread

12th Dec 2024 2:14pm

Chicken Drumstick

Member Since: 17 Aug 2020
Location: Near MK
Posts: 751

Thanks

, But I do know what the equation for power is, you need to add a /5252

BHP = Torque x rpm / 5252

But torque is only part of the equation, for a good road vehicle you generally want some Bhp too.

150hp is fine, but nothing you can't get with a Tdi or Td5. And HP will mostly dictate acceleration.

If this was 1986 and the only LR diesel was the 19j with 89hp, then 150hp and a load of torque would be something. But it isn't 1986, it is 2024.

If all you want is 600nm, then the 6.5 Detroit Diesel V8 has been a popular swap in years past and would offer up 200+hp with the torque too. Although most would feel this old hat and too heavy in 2024.

The JCB engine is cool, but I'd guess must weigh similar to the Detroit with less power and a hugely more cost.

12th Dec 2024 4:19pm

sako243

Member Since: 08 Jul 2014
Location: Wales
Posts: 1220

1994 Defender 110 300 Tdi CSW Alpine White

Having just rebuilt a Perkins industrial engine out of my JCB the "over engineering" on it is astonishing, the sump (bearing in mind this is a NON-structural sump) weighs the same as my 300Tdi block. It's a lump of 1" thick cast steel.

The main difference between an industrial engine and a road going engine is the industrial engine is rated for 150hp/650Nm continuously, an automotive engine is only normally rated to run at full power for about 10% of its lifetime. Ed
82 Hotspur Sandringham 6x6
95 Defender 110 300Tdi

12th Dec 2024 8:33pm

mwestcrew

Member Since: 09 Dec 2019
Location: South Warwickshire
Posts: 261

2011 Defender 130 Puma 2.4 HCPU Baltic Blue

That’s a very good point about the continuous duty cycle of an Agri engine. Very few automotive engines are ever asked to produce even close to their maximum outputs for any length of time. I have a car that has nearly 500 bhp and the bhp display says it’s producing 6QB hip at 70mph on the motorway.

A 150 bhp tractor with the PTO driving a big implement up and down a field is using pretty much the rated output continuously for hour after hour. 2011 130 Utility Body
2005 110 Van

12th Dec 2024 10:16pm

MarkBrown

Member Since: 03 Oct 2022
Location: Mid Wales
Posts: 468

Having seen quite a few of his videos, his business is essentially an engineering shop who specialises in Mercedes based engine conversion and tuning parts, which are shipped to enthusiasts worldwide. I’d say that this conversion is more because you can rather than because it’s better and it’s possibly a way of showcasing different possibilities. If I was to see it I’d be able to spend hours chatting about the pros and cons, sometimes less is more. At the end of the day a JCB engine in a Land Rover must be up there with the coolest conversions, if only for it’s uniqueness. Great job I’d say. 1983 110 automatic OM606

12th Dec 2024 10:56pm

rallysteve

Member Since: 10 Feb 2014
Location: Cumbria
Posts: 2231

Chicken Drumstick wrote:
Thanks , But I do know what the equation for power is, you need to add a /5252

BHP = Torque x rpm / 5252

But torque is only part of the equation, for a good road vehicle you generally want some Bhp too.

150hp is fine, but nothing you can't get with a Tdi or Td5. And HP will mostly dictate acceleration.

If this was 1986 and the only LR diesel was the 19j with 89hp, then 150hp and a load of torque would be something. But it isn't 1986, it is 2024.

If all you want is 600nm, then the 6.5 Detroit Diesel V8 has been a popular swap in years past and would offer up 200+hp with the torque too. Although most would feel this old hat and too heavy in 2024.

The JCB engine is cool, but I'd guess must weigh similar to the Detroit with less power and a hugely more cost.

I did not miss out /5252 at all, it was stated as a unitless equation so was totally correct in context. You would only use /5252 when working in lbft anyway which I dont as I live and work in the metric world! 02' 110 TD5 Double Cab Rebuild Thread

13th Dec 2024 10:32am

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