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sasdiscos

Member Since: 22 Jul 2023
Location: UK
Posts: 151

New member with UK NAS AND 50TH Development Car

Hi all,

I’ve just purchased a defender 90 landrover test mule on a Q plate.
It was originally built by landrover in 1995 as a NAS spec development car.
It was used to prototype the NAS car before it was put into production and sent to the USA.

Following on from this, landrover decided they wanted to make the 50th. The car was then converted to RHD from LHD by landrover, uk air conditioning fitted ect, the hard top put on and again used to prove the concept of the 50th.

Shorlty after this in 1999 it was scrapped by landrover and re registered on a Q plate, now a 1999 registered car.

It was then converted completely to gas lpg, and this is where my project lies……

I really need some info on what to do and what parts to source. I’m used to working on derv defenders but not petrol.

My plan is to get the car back to factory spec, lower it back to standard, put back the gems ecu or a tornado kit. Blow it over in standard NAS paint and have as close to a 50th as I can get, pretty much identical inside etc.

It has no fuel tank, sender, pipes, pump, wiring, engine harness, just runs on gas with a dizzy.

So where to start, fuel tank would be good and fuel pump I suppose.

I had thought about carbs as the dizzy is there but not sure, I would like to get it back to factory with the efi if possible. However, carbs may be a temporary fix so I can drive it about.

I plan on using RPI engineering, but cant get it there due to lpg disappearing ff the face of the earth.

So my plea to you people out there is can you help with any part numbers please?

Many thanks in advance. Steve

Click image to enlarge

22nd Jul 2023 12:03pm

Welshsurferdude

Member Since: 23 Feb 2012
Location: Newport
Posts: 2418

Ooooft now thats a special one!

2008 Santorini Black 110 XS USW (Sold)

2015 Discovery 4.5 Black pack Firenze red XS

2008 Corris Grey 110 XS USW (sold)

2011 Santorini Black 110 XS USW (Sold)

22nd Jul 2023 1:48pm

NickMc

Member Since: 01 Oct 2014
Location: Norn Iron
Posts: 1629

I had a td5 02 facelift test mule much the same story, they usually have hand written numbers on parts to show which “mule” they are.

I would say keep it original or you will ruin the “history” of it. There used to be a guy on one of the forums had a soft top NAS mule I think.

22nd Jul 2023 2:21pm

sasdiscos

Member Since: 22 Jul 2023
Location: UK
Posts: 151

Hi yes, want to put back to original, get rid of the lift etc.

Did the brakes today as they were all knackered.
Fixed 2 oil leaks.

Found massive holes in the exhaust.

Need to fit a new one but don't know if I should fit cats or not.
Looking at this.

Click image to enlarge

It does have euro 2 emissions on the log book so guessing ill need them, but don't know what to get.
Its got through emissions ok with what it has now, similar to the one pictured, but its on lpg, so assume the emissions will go up when I put it back onto petrol.

I will be ripping the gas out in a month or so so need to source all the parts.

Hoping there will be a wealth of knowledge on here.

Looking forward to the challenge.

Steve

22nd Jul 2023 2:38pm

NickMc

Member Since: 01 Oct 2014
Location: Norn Iron
Posts: 1629

There’s a tank on eBay

https://www.ebay.co.uk/itm/166233094490?mk...media=COPY

22nd Jul 2023 2:43pm

sasdiscos

Member Since: 22 Jul 2023
Location: UK
Posts: 151

Yes, indeed Nick, thanks.

However, Thats the bloke I got the car off.

Thought he might have told me he had it when I brought the car, knowing full well I intended to remove the LPG.

I think a td5 tank will do the job as they are supposed to be the same. Im reluctant to give him 500 quid and drive all the way to b, ham again.

Steve

22nd Jul 2023 3:03pm

NickMc

Member Since: 01 Oct 2014
Location: Norn Iron
Posts: 1629

Sorry I looked the other day at tanks and saw it, just realised he has the missing seats and bits for sale too

I have a few plastic tanks for sale if you need one too. They’re not quite the same though. I think was it maybe Keith Gott had a few NAS things for sale in the past…

I would say it has slipped through the net and probably should have been crushed by Land Rover, there’s been a few cars come out like that.

22nd Jul 2023 3:39pm

sasdiscos

Member Since: 22 Jul 2023
Location: UK
Posts: 151

Yes.

I don't know if its a good or a bad thing.

Im just going round in circles at the moment.

First priority is get the exhaust fixed so I can get 12 months MOT on it.

This buys me some time.

Then starting with the fuel tank and lines etc work my way p to the engine management.

I d be very interested in what any one has to sell, providing its what I need.

The td5 tank looks identical, I just wonder if a 110 petrol fuel sender will fit the tank?

The other option is to get a tank made I suppose.

Ive asked a chap on eBay about exhaust manifolds, I think that discovery 1 v8 manifolds are the same.

This is going to be a lot of trial and error and this is probably why the last guy gave up.

Once the gas tank is empty I'm screwed any way because there are no lpg stations near me to fill up.

Do you know if the exhaust system from the 3.5 Im looking at will fit, it looks identical.

Thanks, Steve

22nd Jul 2023 3:56pm

NickMc

Member Since: 01 Oct 2014
Location: Norn Iron
Posts: 1629

Can you post some more pictures of under the bonnet or the exhaust system that’s currently fitted? it might help people identifying parts.

It’s a rare vehicle and as you’ve said a Mule so different parts will be on each one and stuff that’s very sought after, just part and parcel of owning such a thing. Rare parts unfortunately probably means expensive parts.

I’d get a parts manual for the NAS and V8 50th and compare it to yours.

You can modify and fit various different discovery “classic” or D2 v8 senders to fit with a little modification of the tabs, just like the tdi senders.

I would find a V8 50th owner and get some pictures, I think there’s some on here, there used to be a 50th owners club too.

22nd Jul 2023 4:29pm

Mr Fox

Member Since: 10 Sep 2011
Location: green & pleasant land
Posts: 1037

2015 Defender 90 Puma 2.2 HT Keswick Green

This may be of help:

https://www.defender50th.co.uk/

22nd Jul 2023 4:45pm

sasdiscos

Member Since: 22 Jul 2023
Location: UK
Posts: 151

Thanks Mr Fox but not much going on over there.
Im guessing this will be a long slog, shame because I'm an impatient

22nd Jul 2023 4:52pm

sasdiscos

Member Since: 22 Jul 2023
Location: UK
Posts: 151

Here are a few more pics.
Its just started pouring down so can't gat any more till it stops.

Thank you for your responses guys, gives me some hope.

As you can see it has a dizzy currently, suppose it was easier for the complete gas conversion.
The exhausts are 4 - 1 manifold type, no cats. (but think I may need them refitting)
No wiring as far as I can see.

I am in talks with RPI engineering with her the ecu and sensors etc.
However there is the option to go carbs as the distributor is there.

Click image to enlarge

22nd Jul 2023 4:57pm

Mr Fox

Member Since: 10 Sep 2011
Location: green & pleasant land
Posts: 1037

sasdiscos wrote:
Thanks Mr Fox but not much going on over there.
Im guessing this will be a long slog, shame because I'm an impatient .

It is a VERY quiet forum but there are some clever guys on there and a lot of of knowledge. Also may be worth searching old posts and putting up a wanted ad for parts.

22nd Jul 2023 7:29pm

sasdiscos

Member Since: 22 Jul 2023
Location: UK
Posts: 151

Thanks, I’ll give the wanted ad a try that’s a good idea.

If only I knew what I needed.

Steve.

22nd Jul 2023 7:36pm

JOW240725

Member Since: 04 May 2015
Location: Suffolk
Posts: 7907

2012 Defender 110 Puma 2.2 XS CSW Orkney Grey

What a great 90 with an interesting history. Good to see its being well looked after.

James
MY2012 110 2.2TDCi XS SW Orkney Grey - http://www.defender2.net/forum/topic43410.html
MY1990 110 200TDi SW beautifully faded Portofino Red - https://www.defender2.net/forum/post743641.html#743641
MY1984 90 V8 Slate Grey - https://www.defender2.net/forum/post744557.html#744557
Instagram @suffolk_rovers

22nd Jul 2023 7:55pm

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