TDV6 - SDV6 3.0L Power

[Firko]

Gday All,

I have searched and not found any answer to the question,

What is the Difference with regards to components from the TDV6 to SDV6 ?
I have a 2013 TD and would like more toque I have hit up LR and I know the following

Turbos -the same
Injectors -the same
Compression -the same
Engine -the same
Intake -the same
Exhaust -the same

All we can see is different in the mapping has anyone else managed to get a tune done or have an explanation as to what the go is and how we go about upping the power.

[Dudela]

Gday All,


All we can see is different in the mapping has anyone else managed to get a tune done or have an explanation as to what the go is and how we go about upping the power.

I would also be keen to hear if someone has had a Roo Systems ECU remap.

https://www.youtube.com/watch?v=sgLF0crCwII

Cheers
Craig

[phl]

It always puzzled me as to how you get better economy with a tuning that increases power. To increase power you have to burn more fuel; you don't get something from nothing. If it is really that simple, car manufacturers would all be doing it.

[Beery]

I was always under the impression that the SDV6 had sequential turbo's where the TDV6 had a standard single turbo.

[Cambo_oldjaguar]

The only difference between TDV6 and SDV6 is the file that's loaded to the PCM. LR dealers can't/won't make this update for you, but there are people that can ;)

[Dagilmo]

It always puzzled me as to how you get better economy with a tuning that increases power. To increase power you have to burn more fuel; you don't get something from nothing. If it is really that simple, car manufacturers would all be doing it.

Hi Phl,

I agree, this claim (they never seem to back it with facts) has always seemed counter intuitive to me.

Having said that my brother bought a LC200 that came with a tuning module. He's taken it out as it went into limp mode a few times whe he gave it a boot full (the time it happened during a road train overtake was the final straw) and he says that his fuel use has gone up with it out......

[TerryO]

It always puzzled me as to how you get better economy with a tuning that increases power. To increase power you have to burn more fuel; you don't get something from nothing. If it is really that simple, car manufacturers would all be doing it.


Standard nearly all vehicles run very rich, it helps them pass noise tests and puts less stress on the engine when a heavy right foot is used.

We also have a 6.2 litre HSV Senator and I know if I get it remapped by a recognised tuner then it gets about another 30 extra rear wheel kilowatts and the fuel economy improves, under normal driving, by about 1.5 to 2 litres per hundred.
It also resets the shift points in the auto and allows 100% full throttle in first gear. Standard no matter how hard you push the loud pedal when you take off you only get about 50% throttle and 80% in all other gears.
So a simple remap on a HSV makes huge gains in performance and fuel economy, while this might be more than the average remap will attain on most vehicles it shows how the manufacturers detune the vehicles off of the assembly line which in turn effects fuel economy.

Remapping is not the same as bolting on a piggy back fuel metering device, these are common in motorcycle road racing and give impressive results if used with a Dyno to reprogram it for maximum performance for that bike/pipe/cam timing/compression/fuel set up.
However most on here reckon that piggy back devices on every day drivers are problematic and no where near as good as remapping.

[Grentarc]

I have a fair bit of experience writing ECU maps for Saab turbo engines (petrol, not diesel) and you can indeed get better economy from an engine that is tuned.
This comes down to ignition timing in petrol and injection timing in diesels. To get more power, you advance the timing, which shifts the point that peak combustion occurs. If you change light duty throttle conditions to have more advanced timing, you get a longer burn which does increase EGTs. This is where you need to find the balance of ignition/injection timing, fuel quantity delivered (injector duration) and air mass.
For full throttle, max power, high revs, you are obviously using more fuel, but this condition is not where anyone really cares about fuel consumption, as you expect to use a lot when you floor it.

[Grentarc]

Standard nearly all vehicles run very rich, it helps them pass noise tests and puts less stress on the engine when a heavy right foot is used.


They usually run rich at WOT for engine protection etc and run lean for their closed loop (partial throttle) for anti-pollution control.... unless it's a VW Diesel, then it runs on 1 cylinder to pass the tests :eek::D

[Firko]

I was always under the impression that the SDV6 had sequential turbo's where the TDV6 had a standard single turbo.

No mate they are the same parts

[jonesy63]

No mate they are the same parts

The reason for the confusion is that there are two types of D4 TDV6:
1) 2.7L single turbo from MY09-MY12
2) 3.0L sequential turbo from MY12-on (which has less power than the SDV6).

[Grentarc]

The reason for the confusion is that there are two types of D4 TDV6:
1) 2.7L single turbo from MY09-MY12
2) 3.0L sequential turbo from MY12-on (which has less power than the SDV6).
There is also like my MY10 "TDV6" 3.0 which is the SDV6
Not confusing at all hey?

[Firko]

The reason for the confusion is that there are two types of D4 TDV6:
1) 2.7L single turbo from MY09-MY12
2) 3.0L sequential turbo from MY12-on (which has less power than the SDV6).

Yep hence the title TDV6 - SDV6 3.0L Power (http://www.aulro.com/afvb/d3-d4-rrs/230830-tdv6-sdv6-3-0l-power-2.html#post2479820)

[GP1200]

in my day job, I can sell you a 500 hp Cummins truck engine all the way up too 600 hp, it's the same engine with no hardware changes at all, they hook a lap top to them, pay the money and give you the HP setting you want.

I'm guessing the entry level 3 litre engine is the same as the full power version, just a software change?

Jack

[Firko]

in my day job, I can sell you a 500 hp Cummins truck engine all the way up too 600 hp, it's the same engine with no hardware changes at all, they hook a lap top to them, pay the money and give you the HP setting you want.

I'm guessing the entry level 3 litre engine is the same as the full power version, just a software change?

Jack

from what I have been told yes that seams to be the go all seams pretty cool B)B)B)

[cjc_td5]

Gday All,

I have searched and not found any answer to the question,

What is the Difference with regards to components from the TDV6 to SDV6 ?
I have a 2013 TD and would like more toque I have hit up LR and I know the following

Turbos -the same
Injectors -the same
Compression -the same
Engine -the same
Intake -the same
Exhaust -the same

All we can see is different in the mapping has anyone else managed to get a tune done or have an explanation as to what the go is and how we go about upping the power.

There is a setting in the vehicle configuration via a Nanocom etc for "Engine Output" with dropdown options of 155kw and 180kw. I have always wondered if changing from tdv6 to sdv6 was that simple??? :D:D:D

Sent from my SM-G920I using AULRO mobile app

[Cambo_oldjaguar]

There is a setting in the vehicle configuration via a Nanocom etc for "Engine Output" with dropdown options of 155kw and 180kw. I have always wondered if changing from tdv6 to sdv6 was that simple??? :D:D

Unfortunately it's not quite that simple...

[Graeme]

Change it to a V8...

[rar110]

Change it to a V8...
That's a different world. A very very nice world.

[LandyAndy]

That's a different world. A very very nice world.
I wonder how hard it would be transplanting a TDV8 into a failed TDV6 Disco,surely the poms have already done it????
Andrew

[Cambo_oldjaguar]

You'd be basically transferring the entire driveline and engine wiring from a RRS into a Disco and programming it to thinking it's a RRS. It's doable, but many hours work. I don't know of anyone that's done that particular conversion yet but I did hear of a 4.4L Disco that was converted to the 4.2L Supercharged RRS driveline.

Friend of mine (ex-JLR engineer) just converted a FWD manual Freelander 2 into a 4WD auto. Took about 100 man hours between the mechanical and software, just to give you an idea of how much effort is involved.

[Pickles2]

in my day job, I can sell you a 500 hp Cummins truck engine all the way up too 600 hp, it's the same engine with no hardware changes at all, they hook a lap top to them, pay the money and give you the HP setting you want.

I'm guessing the entry level 3 litre engine is the same as the full power version, just a software change?

Jack
I have a friend who runs a transport co. He runs Cummins engines,....has 'em badged at 600HP, but they're actually running at 550HP. Mate says drivers feel better if they think they've got 600HP!
Pickles.

[Stuart02]

You'd be basically transferring the entire driveline and engine wiring from a RRS into a Disco and programming it to thinking it's a RRS. It's doable, but many hours work.


and even more if you're doing it right - eg the heavier duty RRS TDV8 front suspension for the extra weight ...

[GP1200]

I have a friend who runs a transport co. He runs Cummins engines,....has 'em badged at 600HP, but they're actually running at 550HP. Mate says drivers feel better if they think they've got 600HP!
Pickles.

Happens quite a bit, mind over matter!
Depending on the application, it can make quite a difference to their fuel burn,
Saying that, sometimes you never can get enough....

[AndyG]

Have a look at the BAS automotive site.

[Stuart02]

If they really are mechanically the same, does that mean the TDV6 could be uprated not just to the standard SDV6 outputs, but up to SDV6 re-mapped outputs? That would be spectacular bang for buck...

[Cambo_oldjaguar]

Um... yes.

Not sure why that would surprising, there are a couple of aftermarket tuning companies who do exactly that. All versions of the 3.0L end up at the same power level.

But the OP was looking for just taking a TDV6 to SDV6 levels by loading a factory tune, and I think I can guess why...

Any aftermarket manipulation of these ECU's leaves a telltale code P167F-00 "Non-OEM calibration loaded" which is impossible to erase or clear. If your car is still under warranty then that's a code you don't want to have showing should there be an engine failure...

You don't get this code if a factory engine tune is loaded to the ECU using the factory diagnostic tool.

Also the factory tunes are conservative and safe, which is nice if you are towing heavy loads in the heat we have here. Putting a big load on an engine that has been tuned for maximum power isn't something i'd recommend.

[Tombie]

Any aftermarket manipulation of these ECU's leaves a telltale code P167F-00 "Non-OEM calibration loaded" which is impossible to erase or clear. If your car is still under warranty then that's a code you don't want to have showing should there be an engine failure...

You don't get this code if a factory engine tune is loaded to the ECU using the factory diagnostic tool.

Not strictly true... Usually P167F-00 pops up from a failed ECU write rather than a Non-OEM calibration (algorithm).

Where it gets interesting:
This code is only viewable with dealer diagnostic equipment, and will not be read or cleared by any other tuning device or diagnostic code reader on the market.This code may also stored in multiple computer modules scattered about the vehicle, meaning that "clearing" or resetting the engine controller alone will not force the code to go away.

Now it gets really fun

Other in-line devices (tuning devices that plug into the engine harness connections rather than being downloaded as a programmer) claim to be undetectable since there is no actual download of a program through the computer system. However, this is not true, as the factory computer(s) collect and store information from the engine in the form of "freeze frames".

These freeze-frame data collections WILL show evidence of the use of any in-line tuning device even after the product is removed, all information is stored in "non-volatile" memory, meaning the information is stored permanently until overwritten.

A traditional "reset" cannot be performed, meaning the evidence of use of a in-line device will be shown to any dealer or engineer for a very, very long time.


However, if written correctly from behind the security then a correctly programmed ECU will present the mapping as OEM to the algorithm and no codes will flag.

[SBD4]

The 3.0Ltr is now shipping from the factory in the RRS-2 at 190Kw/600Nm as the TDV6 & 225Kw/700Nm as the SDV6. Amazing what these engines are capable of.

[RHS58]

My SDV6 has plenty enough of horses and torques.
No need for more.
Although I'd probably enjoy it if it was there.
Ron

[apom]

I would also be keen to hear if someone has had a Roo Systems ECU remap.

https://www.youtube.com/watch?v=sgLF0crCwII

Cheers
Craig

My friend had his Amarok done by this crowd. The completely messed it up, couldnt get it to work properly. After 3 visits he got them to take it out and get his money back

[apom]

Recently drove these back to back... very hard to pick the difference

[AnD3rew]

The Jaguar F type 3.0 supercharged V6 is 250kW/450Nm; the V6 supercharged S is 280kW/460Nm. Same engine same supercharger.

[boardrider]

i have had my car done by roo systems,oct 2014.I said i wanted only a slight increase in power,i wanted more torque for towing and fuel economy was high on the list.If you want the read out i will look for them and post but the difference was immeadite.Fuel consumption was much better and throttle response was very crisp.Very happy i had this done.I have just been away towing my van ,it weighs 3460kg ,travelled on mostly hilly country some freeway and got 10.4lts/100klms.That will do me:D
boardrider

[aus86inch]

G,day Boardrider
What vehicle do you have and what did they do? Chip & exhaust?
Our van is 3200kg and the best i have got is 16 per 100 normally averages 18 per 100
Andrew

[boardrider]

hi, sorry i have my/08 2.7 diesel. i just had the remap done as i requested.It is awesomeI was told at the time they were doing a lot of tdv6 cars that brought them up to the power of the sdv6.much cheaper than buying the sd
I checked a couple of times to confirm the consumption and it was
10.4 and 10.6:D The tdv6s where being taken to roo systems new from the dealers prior to the customers picking up
boardrider

[aus86inch]

Thanks Boardrider i am in brisbane for the next week or so shall go and have a chat

[PeterJ]

....
I checked a couple of times to confirm the consumption and it was
10.4 and 10.6:D The tdv6s where being taken to roo systems new from the dealers prior to the customers picking up
boardrider

Hi boardrider, that is outstanding fuel economy, what was the economy before the upgrade and what speed are you doing with the van in general? Just like aus86inch I get 18 L/100 towing my 3.2 ton van (nominally at 95 ~100 kph) and if I could improve that to 15 I would be very happy. When I inquired it was a $1695 upgrade, and that is a lot of kilometers at 3L/100 km difference in economy. I know you get a big power/torque increase but I am OK with the performance as it is, the 183kW / 600 N.m and 8 speed auto does it easily so for me it is harder to justify.

[Celtoid]

hi, sorry i have my/08 2.7 diesel. i just had the remap done as i requested.It is awesomeI was told at the time they were doing a lot of tdv6 cars that brought them up to the power of the sdv6.much cheaper than buying the sd
I checked a couple of times to confirm the consumption and it was
10.4 and 10.6:D The tdv6s where being taken to roo systems new from the dealers prior to the customers picking up
boardrider



That's very interesting....obviously the dealership doesn't care that you've modified your car. Or maybe they won't care also, if something goes wrong under warranty .... if you get what I mean?...LOL. Hopefully it's the former.:D

[Meccles]

Our HSE SDV6 with 50K on it runs out of warranty very soon. It is booked into Roo systems for "tow and tour" ecu upgrade, plus the Legendex (genie) exhaust. Will let you know how it goes.

[PeterJ]

Hi Meccles I would be interesting to know your application not sure if you are into the technical side but do you tow, what van and how fast. Do you have fuel consumption records and are you considering doing any pre and post checks, like say 0 to 100kph ;)
If you had a scan tool doing a set driving loop and recording a few parameters (perhaps EGT) would be very interesting.
Just me thinking out loud really.

Regards
PeterJ
(Sent from the Note 4 using AULRO mobile app)

[Tombie]

The tdv6s where being taken to roo systems new from the dealers prior to the customers picking up
boardrider


Whomever told you that is telling Porkies!!!

Dealers who do ANY modification not including a Trailer braking system are breaching JLR directives..

[Tombie]

Love how everyone is dishing out huge wads of cash for exhaust system upgrades..

Just did turbo to diff upgrade/modification.

Better economy, better spool up...

$600.00

[TuffRR]

Just did turbo to diff upgrade/modification.

Better economy, better spool up...

$600.00


Interesting. Can you tell any more?
Has anyone done a mod to change how the exhaust goes past the rear diff to increase ground clearance.

[Meccles]

Re my exhaust upgrade, it is ceramic coating on dump pipes that I like. do I have any data or scan gauge etc for recording before and after details? Nope. But plenty of evidence available of effectiveness of these coatings. Same with power and fuel figures. If I can't tell difference by seat of pants, then I really wasted my money. And will tell you all so. Have wasted lots in past, and still haven't learn't so shows how foolish one can be:D But, speaking to others who have had their Toyonissmazda done, they were all very satisfied. Mates 4.5 toyo V8 is a different animal after exhausts and good re map. Steve at roo systems reckons they have done a heap of Disco's (4) and that they respond really well to better exhaust and ecu re map. Mind you, as he would. :D

[Tombie]

Interesting. Can you tell any more?
Has anyone done a mod to change how the exhaust goes past the rear diff to increase ground clearance.



I think I have a pic during fit up...

It's got a 3" dump from the Turbo flange now.... (Factory is a pressed item)....

Somehow the Cat fell off or was misplaced during fit up [emoji48] which suits the fact I do lots of Dry Grass Land work.

https://www.aulro.com/afvb/images/imported/2016/04/736.jpg

Simple maths for area using 3" front pipe and splitting into the dual rear (Standard system which is just resonators) shows the standard rear pipes easily outflow the primary pipe.

As for sound - ask Muppet or Toxic Avenger [emoji41]

[Disco Muppet]

Silence and then a ballsy growl when right foot is applied.
I was impressed. :cool:

Sent from my HTC One using AULRO mobile app

[PeterJ]

Meccles, would like an update on your roosystems remap and other changes if you are happy to share.

I did an ecu remap (not roosystems ) while it certainly goes better when you stick your foot into it's a non issue because I just don't drive it like that. Of greater interest to me was shutting down the EGR and fuel economy improvement. Well the EGR is done but after 2 tank fulls my fuel economy has deceased by 10% so I am not happy about that at all. I am considering my next step.

Regards
PeterJ
(Sent from the Note 4 using AULRO mobile app)

[CSBrisie]

I had a Roo Systems twin 3inch exhaust and ECU remap done on my 4.4TDV8 over 18 months ago and I'm very happy indeed. Power went from 230-276kw and torque 700-850nm; dynotuned; economy is little change. Towing (caravan) is effortless - but towing a laden 21foot Bushtraker van we never saw better than 17.5 l/100km (3.3tonne minimum!!), at 100-105kmhr, so I suspect anyone getting under 15 in a TDV6 towing that weight is quite remarkable!
Cheers

[Graeme]

Has anyone done a mod to change how the exhaust goes past the rear diff to increase ground clearance.Turn the LLAMS knob as required.:D

[TuffRR]

Turn the LLAMS knob as required.:D

Already maxed on the Llams. And running 275/65/18's. Still dragging the exhuast.

Maybe i need to move up to 35"s... :twisted:

[TheCannyMan]

Hi All,


Long time lurker first time poster, thanks for the interesting reading so far!


I was hoping this is the right place for some light on a SD vs TD question - I know there are some differences in equipment but am really curious to see if the SD with a 6 speed is better than the TD with the newer gearbox?


Am looking at second hand 2011/12 SE/HSE's vs a 2013+ TD.


Many thanks,
Sam

[Berger]

Hey fellas, I'm new on here and this topic is of great interest to me.
I have just purchased my first Land Rover a MY16.5 TDV6 Graphite, I made the purchase with every intention up getting it at least as powerful as an SDV6. I can't have a vehicle that is actually made to produce more power left in a lower state of tune.
I was under the impression that I could easily just upload the SDV6 tune but that may not be the case. I'm also confident that a tune if done correctly won't risk causing damage to the engine.
I'm keen to also upgrade the exhaust which made me think of getting a Roo Systems exhaust and tune package, it comes with a Genie stainless exhaust system.
I would love to do a dpf delete add I'm worried about it causing issues with extended low range work. It doesn't seem like there I'd a dpf delete kit available, has anyone on here done this? Also are people blocking the egr circuit?

What are people doing service interval wise? There is no way I'll be going 26k kms between oil changes particularly with only a 5.9l refill. I'm thinking that I will do 10k kms oil and filter changes, what oil is eveyone using? Surely with this engine family having been around for a good while in many models that the guru's have worked out what oil works best for engine life.

Thanks in advance, I know having such a great forum and so many knowledgeable people on here will add greatly to my ownership experience. I can't wait to get the beast on Friday.

Cheers

[GregMilner]

[What are people doing service interval wise? There is no way I'll be going 26k kms between oil changes particularly with only a 5.9l refill. I'm thinking that I will do 10k kms oil and filter changes, what oil is eveyone using? Surely with this engine family having been around for a good while in many models that the guru's have worked out what oil works best for engine life.]

Mine is a 2012 TDV8 Vogue Luxury, I get mine serviced religiously every 6 months or 10,000km, whichever comes first (almost always 6 months, rarely do more than 6,000-7,000km in that time) and never regret it.
Can't remember which oil, it's whatever the manual specifies, done by a specialist Jaguar Land Rover independent.
Doing a fair bit of unsealed kilometres I'd rather spend the $600-odd every six months for peace of mind, than stick to the LRA schedule of once a year (or whatever it is - can't remember, but longer than 6 months.)
Over-servicing is cheaper than under-servicing in my humble opinion.

[BobD]

You must use exactly the oil that is specified. There are posts around on engine damage such as spun crankshaft bearings that are often blamed on using different oil to what is specified.

[Tombie]

Oil analysis shows my oil is within spec at 24k intervals...

A bit of a stickybeak in the engine with a camera shows no sign of sludge build up etc.

Unless really giving it a hard time anywhere from 12-20k intervals should be ok.

[Berger]

Thanks fellas, I know you can't stray far from what is specified with these engines but as an example I called a LR specialist workshop and they said they use Hi-tec 5w/40 when I think a 5w/30 is specified.
I think 6 month 10k intervals is what I'm likely to do. I'll do the intermediate services myself and the annual ones either at the dealer or a specialist workshop.

[LRD414]

I was under the impression that I could easily just upload the SDV6 tune but that may not be the case.
Not a simple ECU upload with D4s for recent model years.
Due to encryption yet to be cracked, the ECU has to be physically opened and the map modified. Consider warranty implications carefully.

I'm keen to also upgrade the exhaust which made me think of getting a Roo Systems exhaust and tune package
Roo Systems exhaust has been done & mentioned on here.

I would love to do a dpf delete add I'm worried about it causing issues with extended low range work. It doesn't seem like there I'd a dpf delete kit available, has anyone on here done this?
No dpf installed since (I think) 2010

I know you can't stray far from what is specified with these engines but as an example I called a LR specialist workshop and they said they use Hi-tec 5w/40 when I think a 5w/30 is specified.
This is poor advice. Suggest you do some more research and this forum is excellent for that.
As a start:
http://www.aulro.com/afvb/l319-discovery-3-4/219960-engine-oil-3-0-tdv6-2010-a.html
http://www.aulro.com/afvb/l319-discovery-3-4/214971-d4-service-oils.html

Cheers,
Scott

[LandyAndy]

Hey fellas, I'm new on here and this topic is of great interest to me.
I have just purchased my first Land Rover a MY16.5 TDV6 Graphite, I made the purchase with every intention up getting it at least as powerful as an SDV6. I can't have a vehicle that is actually made to produce more power left in a lower state of tune.
I was under the impression that I could easily just upload the SDV6 tune but that may not be the case. I'm also confident that a tune if done correctly won't risk causing damage to the engine.
I'm keen to also upgrade the exhaust which made me think of getting a Roo Systems exhaust and tune package, it comes with a Genie stainless exhaust system.
I would love to do a dpf delete add I'm worried about it causing issues with extended low range work. It doesn't seem like there I'd a dpf delete kit available, has anyone on here done this? Also are people blocking the egr circuit?

What are people doing service interval wise? There is no way I'll be going 26k kms between oil changes particularly with only a 5.9l refill. I'm thinking that I will do 10k kms oil and filter changes, what oil is eveyone using? Surely with this engine family having been around for a good while in many models that the guru's have worked out what oil works best for engine life.

Thanks in advance, I know having such a great forum and so many knowledgeable people on here will add greatly to my ownership experience. I can't wait to get the beast on Friday.

Cheers

My Bro has just bought a SD 3.0 D4 6 speeder.I should be catching up with him in the next few weeks.Will see how it goes compared to my TDV6 8 speed.I did have a SDV6 loaner that was brand new last service,it did feel significantly stronger than mine,also it seemed to give 8th gear at 1000rpm where mine wont,it made the instant fuel numbers at 70 to 80kmh look very impressive,and it happily held 8th.

With servicing,Ive done the full service at 12 month intervals,15000km each time.Synthetic diesel oil is good for LOTS of km,you can safely run it longer than the service interval,not that I am.
Andrew

[shanegtr]

Oil analysis shows my oil is within spec at 24k intervals...

A bit of a stickybeak in the engine with a camera shows no sign of sludge build up etc.

Unless really giving it a hard time anywhere from 12-20k intervals should be ok.
I've got the 2.7 in my D3, oil analysis @15k shows the oil is still very good (better than my old 1HZ powered cruiser after 5000km!)


If your doing less than 10,000 km a year then changing the oil every 6 months is a bit overkill in my opinion, unless there are no significant longer runs that get the engine oil up to operating temp. But still you'd be perfectly safe in most cases to change yearly.

[Netorius]

Good day, I know this is an old thread, but trying to follow the rules and search. As always on forums, one has to trawl through pages of totally irrelevant stuff to find the gems you are looking for. This is the topic I am interested in so here goes.
I have. 2014 D4 TDV6 8spd Auto and keen to consider remapping and have the following understanding/questions that I would really like confirmation from the wise people in this group regarding extra power/torque/reliability on my TDV6. Thanks in advance (and I live in Perth).
1. Is it better to remap completely rather than just install the "standard" SDV6 map. (I am budget constrained!)
2. People mention the EGR delete. It seems, for my 2014 D4 there is no blanking, just modifying the coding of how it operates. Can this can be done at the same time as the remap and may save me a bit? (I know this is not legal but happy to accept the risk as I have been advised that it should definitely improve long term reliability and performance).
3. I understand that de-catting the exhaust (hypothetical of course as this impacts emissions) is also an excellent way to potentially extend the life of the turbos. Is this statement correct?
4. I understand there is no DPF on the 8spd D4s. I know there were on some of the early models but a bit confused when it changed. I am reasonably confident my 2014 does not have a DPF.
5. I am not going to ask if a sensible remap to SDV6 type output is safe as I know there is no guarantee or clear response and I definitely do not want to do anything that may impact the life of the engine or dreaded crankshaft failure!
6. I am not a rev head and really just want to modify those items that will safely a) increase the life of the vehicle and b) provide additional torque/power for towing, and hopefully the remap improves the takeoff turbo lag.
Appreciate any input regarding the above and please be kind! Thanks

[kelvo]

1, Remap via Marc at Autocode in Welshpool, or Darren at Aztech 4x4. Aztech use a third party tuner that remaps on a rolling road.
2, Yes the EGRs can be mapped out, Autocode can do this not sure if the people Aztech use can.
3, No idea.
4, Check the eighth position, N = TDV6 without DPF, M = TDV6 with DPF.

[Netorius]

Thanks kelvo,


4, Check the eighth position, N = TDV6 without DPF, M = TDV6 with DPF.
Cool, N = no DPF

Any ideas what the cost of a remap is? I will give them a call next week.

[RANDLOVER]

............
.......and hopefully the remap improves the takeoff turbo lag.
Appreciate any input regarding the above and please be kind! Thanks

The perceived turbo lag may actually be slow throttle response, so you might be pleasantly surprised by a throttle controller like EVC, iDrive, etc, although I think a re-map programme might have some code that improves the throttle as well.

[Discodicky]

I have an MY13 TDV6 and got Cameron at Old Jaguar (Sydney) to attend to my ECU. Cost $1100 incl GST several months ago.

Gave me 210Kw and 700Nm torque which apparently is same as the latest RRS 3.0 diesel.

The difference from the original TDV6 155Kw is phenomenal. Possibly not worth doing to a 188Kw SD engine, although the 700Nm is very worthwhile if towing.

It tows my 3.0T c/van effortlessly and although I don't actively monitor fuel consumption I have no doubt that it is not worse. Possibly even better as it does it all so much easier now. I removed the I-drive as although that was brilliant for removing the hesitation, the ECU mod did that so no need for the I-drive.

I have done 18,000 klm since the ECU mod and total klms are just over 174,000. Still on original manifolds.

As I understand, it is not practicable to delete the EGR valves on the 3.0 via a remap.

[josh.huber]

I've got a stock engine and a old Jaguar tuned transmission, very happy.. The lag was gone with the EVC, but The tune is better.. I've decided to sell my EVC after the tune.

On a budget get a EVC, no budget trans then engine tune. The whole egr thing isn't a big deal on these. I'm at 300k without egr mod.

[Netorius]

I have an MY13 TDV6 and got Cameron at Old Jaguar (Sydney) to attend to my ECU. Cost $1100 incl GST several months ago.
Gave me 210Kw and 700Nm torque which apparently is same as the latest RRS 3.0 diesel.
The difference from the original TDV6 155Kw is phenomenal. Possibly not worth doing to a 188Kw SD engine, although the 700Nm is very worthwhile if towing.
Thanks Discodicky,
My research indicates (stock):
SDV6 output: 183kW/600Nm vs.
TDV6 output: 155kW/520Nm.

So for me (like you) with a TDV6, the remap is definitely worthwhile, but not so much if you have a SDV6. Your 210kW/700Nm is certainly a big improvement, even on the SDV6 output.


As I understand, it is not practicable to delete the EGR valves on the 3.0 via a remap.
I found the following post by Tombie stating the EGR can be deleted via a map for the D4 3.0:


Ok. Some detail.
2.7
Early D3 just blank it and be done.
Late D3 blank and map
D4 blank and map

3.0
Don’t blank them - map them
And don’t close them because they are a part of the boost bleed off when coming off throttle at higher boost. As the throttle butterfly closes (yes they have one) the second turbo is vented via EGR
Cameron from Old Jag will confirm
If it is only mapping the EGRs off, I am guessing this is a cost effective mod.