There have been a few threads on Td5 turbo options in the past... and one thing that gets brought up quite often is the use of VNT (variable nozzle turbos) and the benefits they should bring. The down side is the need for a custom exhaust manifold, modified exhaust down pipe, modified oil pipes - and which turbo to use - making sure it's matched to the requirements and characteristics of the Td5 engine.

Until now that is....
Here are a couple of pictures of the first prototype - from the outset, this turbo is designed for the Td5:
So it bolts straight onto the standard exhaust manifold, uses a standard exhaust downpipe, standard air intake pipe work - literally a bolt on conversion.
But more importantly... it is designed exclusively for the requirements and flow rates of the Td5 engine. It is not one off another vehicle modified to suit a Td5 - which may be far from ideal.

More details will follow (as still early days), but initial indications are looking promising. Even on a standard map (on an otherwise standard Defender), the turbo makes quite a difference. It makes more boost from much lower RPM, and the speed at which it makes boost when on the go is nothing but amazing!!!






However....
When remapped to make use of the increased boost pressures at lower RPM.... that's when the fun begins!
Although still early days, and we have 'A LOT' more testing to do before the turbo and various 'map' options will be ready for sale.... all I can say is that it will be worth the wait!!!

In the mean time the company who are making the turbo, Pete Bell and myself have quite a bit more work to do!!!

Ian

oooohhhh hubba hubba!!! me likey lots!!! me want me want!!!!

can you do one for a TDI next ?

You've got to build the 110 first

/reality mode/

yeah, s'pose your right......



why let a little detail like that get in the way though?

Hopefully yes when we have completed the TD5 project we will start work on the TDI 200/300 range as well.

Regards pete

I'd like one for the 300 as and when it appears Thanks

Same here

How about the one off the 2.8HS engine ?
That'd be as close as you could get without specifically mapping one for the 300tdi and it's available, just use the 2.8 exhaust manifold as well.

It's a Garrett GT2256V G 724652-0001E

If they are of any use, Here are some pics of the vnt turbo from a 2.8l that I fitted to the 300Tdi in my rangie. They show the markings on the compressor and turbine housings.

When I get a chance, this turbo will go on the 300Tdi in my disco. The rangie is getting an Isuzu diesel with Borg Warner R2S compound turbo (later turbo technology than VNT).

I definitely want one of these unless it costs eleventy million pounds.

Ah, i heard it was eleventy million and 5 pounds.


Any idea of price yet Ian?

I'd be quite interested too, for a 300Tdi

It has always been my opinion that LR made a mistake not fitting a VNT turbo to the TD5 in the first place. After all, they were available when the engine was designed. It will get rid of most of the turbo latency that drivers complain about. I am definitely interested with the Tdi conversion when it happens, though I may have to travel to the uk to get it and smuggle it back in my hand luggage!

Not knowing much about VNT's, so excuse dumb questions but what sort of difference would you get on a standard TD5? How much lower does this turbo kick in? Current one comes in about 1300rpm and seems to have full boost about 15-1600rpm.

Does it offer more boost throughout or is it just lower down? Is it worth fitting without a tune?

If you fit with a tune are you soon into 200bhp+, 300 ft-lbs+ territory?

The reason I ask is to see if it would be better to go for a new turbo over tuning a standard TD5. However, if that means you need a tune too and are now into gearbox, clutch and transmission breaking realms I'll give it a miss and probably just go for a normalish remap to standard TD5.

Cheers

Steve

(This is what my understanding is of what you said, i might be wrong, but here goes....)

If you change a turbo, be it swap in a piddle little one or a huge great truck engine one, the overall power output of the engine need not be changed, as long as the boost is set to the same pressure as the old turbo then power will be the same.

drivability will change, as a large turbo will have lots of lag while you wait for it to produce enough pressure to make a difference to the engines performance. conversely a small one will "spin up" faster but run out of puff before you hit the rev limiter of the engine.

so fitting the VNT one should make "on boost" performance come in at a lower RPM, helping pulling away and other low speed stuff, and the vanes being variable will enable the turbo to still give good results higher up the rev range,

as long as the boost pressure is still the same, then i don't see why a remap to give more power is needed (although i suspect you'll need a remap to enable the engine to pump in more fuel at lower RPM's to make use of the extra low down turbo boost)

Hi
The final torque/bhp and pressure figures will be posted as soon as we have finished it and tested on the dyno.


We do really hope for bigger torque lower down than standard considering i can produce 313lbs/ft @ 2530rpm from a normal TD5 hybrid turbo with my stage 2 remap on..


The driveability with the VNT over the standard turbo is like chalk and cheese, it drives much much nicer pulling gears with ease over the standard setup

Regards pete

Hi guys.
Looks like a very nice and well engineered setup,
Have had mine fitted for about 15000k now and can tell you that I will never go back to a waste-gated turbo EVER EVER EVER,
Obviously mine is a little different to yours as it's made for my 2.8 TD5 and 1.8 Bar boost but you are dead right in saying Chalk and Cheese
Good luck, am sure the kit will sell like hot cakes.

Lara.

Just to add for some response,

Would any of you be interested in a Switching remap EG 2 maps inside one ecu with a switch to enable the map of your choice ?
One for the wife and one for you sort of thing loool

Regards Pete

Ditto...another 300Tdi here,
interested as far as full bolt on-no fuss
a ballpark price would be good too,in order to start robbing around er saving €€€

Switching maps sounds interesting, perhaps one for when you want to eat chavs for breakfast and go silly fast (or perhaps comp safari) and one for slower more technical stuff when you want lots of torque, but not stupid amounts??

Either way i want one of those turbo's for my D-Lander....and soon!!!

VNT? Phah!!! They're hopeless! Just hot air - it'll do nothing for your engine. SNAKE OIL I tell you!!!!


P.S. How much do I have to pay to stop you selling these???

Will (VNT = my secret weapon)

Yes these are along my thaughts also eg, comp safari V mild or tricky ,the main thing is that hopefully you will have the choice of remaps and be able to switch it when needed. While the engine is running

I suppose the limits are endless to the variations that are possibile with it.

With some final testing i will have the first ever switching TD5 finished this week so ill let you all know how it goes.

Regards pete

bonus - switching on a dip switch on the ECU or a pair of nominal tails to allow remote fitting would rock Pete

Dyno sheets - pleasantly refreshing, crack on!

Is there a forum discount on any of this stuff?

Ill try and work it so it will use a switch to GND inside the cab for ease of install, also if the switch or any of its wires failed then it wont damage the ecu or its switching device.

The switching device itself will be installed inside the ecu for safe keeping so to speek.


Regards pete

Of course


There may even be a switching map install as a forum freebe yet , of course they would need to come to me for the work done.

See how i get on first.

Regards pete

A complete numpty question for you...

Will this be a universal fit between the Defender and Disco (bearing in mind the differences between mounting positions on earlier TDi models)? I've never looked under the bonnet of a TD5 Defender...

If it is, then I might have to start working on the wife!! She's gradually coming around to the idea of tuning it....for better MPG, of course

Hints of a ball park price would be useful if you've got any ideas??

TIA
Adrian

PM sent

cheapskate Steve

Yes....
Apart from a few minor differences engines are identical.... so the turbo will fit all models.

We are still working on price - this will be confirmed (at least a ball park) ASAP.


Ian

Another vote for a 300 Tdi turbo
Mo

As soon as you have a price then Ian drop me PM....D-Lander is nearing readyness and needs some VNT & remap love

so when is their one going on mine then ian!!!!!!

After there is one on my D-Lander with a bit of luck

There will be plenty to go around

We can all have one.


I will post some details of the switching remap results tomorrow , hopefully i will have completed its manafacturer

ok lets have one in td5 format please!

how much?

my allispotyed mapped and cooled td5 is now sluggish as hell!

If it were ok when it was originaly done then you may have a car problem, mapping does not alter but cars do go faulty.

It may be worth a phone call to Andrew.
What spec is your car ??


Regards pete

Hi The Allisport kit Its functioning fine,Andrew did a good job. and it'll leave a lot of defenders standing, but having lived with it for a couple of years I find it sluggish as hell. If I can obtain a significant power gain with your turbo i'd like one.

Can you give me an idea of how much this will cost. Also to further complicate the issue, the vehicle is long term based in Bucharest, Romania

Cheers

James

Ahh , now i understand.
The price for the kit will be available soon , iwill keep you posted.

i would realy need the car here to gain the best from the kit.
it is possibile for you to fit but if you wanted the maping it would not be its best if i were only sent the ecu for tuning.

it is always the best to have the car for electronic tuning.

regards pete

Hopefully very soon...

At the moment we are still deciding on the final spec of the turbo, and doing lots of development and test work.

Mapping wise... all I can say is that it is very special!! (the BMW owner on the way home the other day was very shocked!! )

This is not some 10 minute hash job - i.e. lets bolt this turbo on - off some other car - wind the boost up, dump loads a fuel in and sell it on!!

The conversion will be to a very high standard and will not be avaliable to all testing has been completed (which will be soon).


Ian

thanks for the response very interested and happy to dhl the ecu if it can be done that way keep me posted James

Well after boggeling and frying my brain with electronics and cutting my wrists a few times while doing it,
im finaly proud to be the first to produce a switching 2 stage remap working on the TD5 ecu

It can be switched while the engine is off or on , it can be switched at any rpm of speed etc etc.
I have some more work to do on its security before its for sale on the market but hopefully with a fresh brain tomorrow ill get a step closer to finishing this.

Ill keep you all posted on my progress

Regards Pete

Oooh, nice one Pete - definitely keep us posted, its gonna be a fight to see who gets the first setup once its all released (providing one doesn't need a stockpile of cash that you could buy an island with to buy it.)

The switching remap will probabaly cost less than most other landrover tuners sell a standard remap for

Of cousre if you choose to have 2 tuned maps then the cost would go up slightly,
but if it map1=STD and map2=Tuned then the cost will be affordable

Sounds good...add that to the new turbo and intercooler though and i might need a small cash injection!

Agreed , but when you drive it you will see the worth .

Looking forward to its launch and placing an order!

James

Keep us posted on the Variable Vane Turbo - I expect that will transform the Td5 and will make the Puma owners wonder why they parted with all that cash! (or make us look at how much we spent on ECU re-maps, uprated intercoolers, straight-through exhausts, and now Turbo's )

But what would a Landy be if you couldn't pour cash into it!

Keep us posted Pete.

Any further update on its launch?

The final CAD drawings for the casting and the needed machining are been drawn as we speek , i think final casting/production is going to be around 8-12 weeks yet.

We are also working on special actuators for its control for ease of setup and this is taking time also.

Regards Pete