Disco 4 SDV6 3 Litre power/torque upgrade

[LRHybrid100]

Hi All,

Looking for an ecu flash upgrade and EGR removal for my 2010 Disco 4 SDV6 3 Litre - who's the got to these days? Still Mike (Tombie)?

Looking for added torque for towing.

Cheers LRH

[Tombie]

Not me [emoji846]

Bruce Davis would be a good point of call.

Although - with that much torque - and towing - I’d recommend against it.

A simple EGR close patch I’d recommend though.

[LRHybrid100]

Cheers Mike,

Can you do the EGR close?

[Tombie]

Cheers Mike,

Can you do the EGR close?

Not, it’s been an “ECU on the bench” job. I didn’t want to open people’s ECUs

Just check with BellAutoServices too, they may have the ability to do the earlier 3.0 now via OBD

[Tombie]

You can do something fun though - you can add Paddle Shift to yours!

[Eric SDV6SE]

Hi All,

Looking for an ecu flash upgrade and EGR removal for my 2010 Disco 4 SDV6 3 Litre - who's the got to these days? Still Mike (Tombie)?

Looking for added torque for towing.

Cheers LRH

Roo Systems bench top ECU tune "towing and economy" is the one I got for my Dec10 MY11 SDV6SE 3.0

[LRHybrid100]

Roo Systems bench top ECU tune "towing and economy" is the one I got for my Dec10 MY11 SDV6SE 3.0

How do you find it? Notice any changes?

[LRHybrid100]

You can do something fun though - you can add Paddle Shift to yours!

Yup, bought an MY14 steering wheel already with the flappy paddles already!!! Now to start modding this beast!

[Eric SDV6SE]

How do you find it? Notice any changes?

Awesome, definitely noticeable. no lag off the line, fantastic towing performance, overtaking is effortless. getting an indicated 15.0l/100km towing our ~1600kg camper and the car full of kids.

[wardy1]

Awesome, definitely noticeable. no lag off the line, fantastic towing performance, overtaking is effortless. getting an indicated 15.0l/100km towing our ~1600kg camper and the car full of kids.

Bit surprised at the indicated economy there. I took this pic whilst coming down the Stuart Hwy a couple of weeks ago. We were towing our 2500kg caravan at the time.
https://www.aulro.com/mobile-gallery/05f16d063d30fd89a025c770f5523181.jpg

[PeterJ]

Meaningless random number generator, sorry to tell you [bigsad], if you want to know the truth, calculate it.

But back to the OP, there are quite a few threads that discuss this in detail but I was wondering if you have something specific in mind that you do that the car as it is does not deliver on?. I tow 3.3T van and have not come across a situation where my first thought has been "if I just had another 40 kw and 100 n.m". Don't get me wrong, I am just as much into more is better as the next diesel head, but I am interested in the reasoning.

Peter

[wardy1]

Meaningless random number generator, sorry to tell you [bigsad], if you want to know the truth, calculate it.

But back to the OP, there are quite a few threads that discuss this in detail but I was wondering if you have something specific in mind that you do that the car as it is does not deliver on?. I tow 3.3T van and have not come across a situation where my first thought has been "if I just had another 40 kw and 100 n.m". Don't get me wrong, I am just as much into more is better as the next diesel head, but I am interested in the reasoning.

Peter

Thanks for the ‘enlightening’ advice. The reason I posted the pic is that LRhybrid mentioned his ‘indicated economy’ which one would reasonably assume is the readout on the dash.
Now, I HAVE calculated my own economy and overall on this trip of some 17,000km, we averaged 14.1l/100km. 95% of this driving was towing the van.
Please don’t assume that you are the only person out there with a thinking mind

[wardy1]

Back on topic, speak to Greg at AMV. He has and ECU remap for about $1000, the figures from the Dyno I saw lately showed it was a good upgrade and reports are that economy has improved in remapped vehicles

[101RRS]

Bit surprised at the indicated economy there. I took this pic whilst coming down the Stuart Hwy a couple of weeks ago. We were towing our 2500kg caravan at the time.
https://www.aulro.com/mobile-gallery/05f16d063d30fd89a025c770f5523181.jpg

That is a real figure of about 13.5l/100km and cruising at steady speed on relatively flat ground.

[Eric SDV6SE]

Is yours the 8 speed? They are better on fuel than the 6 speed. Note that the indicated is about 2l/100km optimistic. My fuel trip meter algorithm was reset as part of the tune and is about 98% accurate

[Tombie]

That is a real figure of about 13.5l/100km and cruising at steady speed on relatively flat ground.

If I post mine up I can assure you it’s within 1% [emoji41]

Calibration took a little while but I have it sorted on mine.

[wardy1]

Is yours the 8 speed? They are better on fuel than the 6 speed. Note that the indicated is about 2l/100km optimistic. My fuel trip meter algorithm was reset as part of the tune and is about 98% accurate

Yes it is an 8 speed[emoji3]

[John_D4]

A bit off topic I know, but, with the 8 speed is there anything I need to know about towing? With my D2 TD5 I put it in 3rd with sports mode turned on. Is the 8 speed just put in drive and forget it? I understand that the 8 speed is a super strong box compared to the ZF4

[Eric SDV6SE]

Is the 8 speed just put in drive and forget it? I understand that the 8 speed is a super strong box compared to the ZF4

Even in the 6 speed it’s set and forget, I imagine the 8spd is even better. I don’t even use Sport mode on long hauls

[justinc]

My advice with the 3.0 , especially the 8spd ones , is not to be too quick to remap... the intake manifolds are happy to burst open with standard boost and heat levels...🤬.
As regards dash readouts, mine (not a D4) is 1.4l/100 optimistic.

[DieselLSE]

the intake manifolds are happy to burst open with standard boost and heat levels...🤬.
As regards dash readouts, mine (not a D4) is 1.4l/100 optimistic.
Justin, do you have a theory as to why the intake manifolds split? Is it just the plastic becoming brittle over time? Could the gunk that develops with the EGR system have anything to do with it?

[justinc]

Justin, do you have a theory as to why the intake manifolds split? Is it just the plastic becoming brittle over time? Could the gunk that develops with the EGR system have anything to do with it?

Poor design and indifferent manufacturing... I have customers at double the km others have got to without a split. The QC is obviously non existent on these parts. It's a lottery, an expensive one, in my opinion.

I will say that was one of the few reasons why I bought a V8Diesel L322.....

[Tombie]

Poor design and indifferent manufacturing... I have customers at double the km others have got to without a split. The QC is obviously non existent on these parts. It's a lottery, an expensive one, in my opinion.

That and use... lots of heat soak isn’t as bad, but constant hot/cold repetition will likely accelerate it...

What people won’t see is the update to the pattern to make the part stronger in the current replacements.

[DieselLSE]

What people won’t see is the update to the pattern to make the part stronger in the current replacements.
Do you know what year the updated parts started shipping?

[DiscoJeffster]

Do you know what year the updated parts started shipping?

I think they’re up to nearly double digit revisions, so they continue to update it over time.

[Eric SDV6SE]

My advice with the 3.0 , especially the 8spd ones , is not to be too quick to remap... the intake manifolds are happy to burst open with standard boost and heat levels...🤬.
As regards dash readouts, mine (not a D4) is 1.4l/100 optimistic.

Yes notedit is a lottery. Mine's done 195,000Km and had the remap, no issues to date (touch wood), DJ has the same car, and had had to replace both manifolds, others have done far less kms and had them fail, others done many more trouble free kms, definitely a random thing, can't seem to do much to prevent it.

My tune runs about 2psi over standard across the rpm range, my Rovacom shows a peak of about 178psi manifold pressie under hard acceleration held in 3rd . Current issue is the inlet plenum o ring clip dislodging, and one of the manifold outlet o rings is leaking. New orings on the way..

[justinc]

Yes notedit is a lottery. Mine's done 195,000Km and had the remap, no issues to date (touch wood), DJ has the same car, and had had to replace both manifolds, others have done far less kms and had them fail, others done many more trouble free kms, definitely a random thing, can't seem to do much to prevent it.

My tune runs about 2psi over standard across the rpm range, my Rovacom shows a peak of about 178psi manifold pressie under hard acceleration held in 3rd . Current issue is the inlet plenum o ring clip dislodging, and one of the manifold outlet o rings is leaking. New orings on the way..

The sdv6 is certainly a weapon. Even without a remap. Hence my comment about leaving it stock when using these things for towing. Not towing, the duty cycle of high temps and pressures are significantly reduced.

[John_D4]

So, from reading the above, I should be ok to remap my 2013 TDV6 8 speed. From what I know it’s the same car as the SDV6 but a different engine map.

[Dagilmo]

So, from reading the above, I should be ok to remap my 2013 TDV6 8 speed. From what I know it’s the same car as the SDV6 but a different engine map.

This is long discussed topic with various opinions from the various posts.

I spoke to Roo systems who said yes we can take the TDV6 (post '13) to the same power/torque as the Roo Systems tuned SDV6.

However, Gally at autocade said he only takes the TDV6 to the SDV6 (untuned) figures and the SDV6 he takes to the TDV8 based on the SDV6 having stronger conrods and pistons than the TDV6.

Make what you will from above.

[justinc]

Like I mentioned, these remaps aren't really the problem per se, it's what the vehicle is subjected to , in a duty sense. Then there is the poor materials and QC of the parts, together there is your cause and effect. They overall are an impressive engine, just let down by this sort of thing.

[DiscoJeffster]

However, Gally at autocade said he only takes the TDV6 to the SDV6 (untuned) figures and the SDV6 he takes to the TDV8 based on the SDV6 having stronger conrods and pistons than the TDV6.

Make what you will from above.

The TD and SD 3.0L engines are identical. It is only the tune that varies and the additional power is a reflection of the boost level. This is obvious when one goes and looks at the part numbers for the bottom end where there is no SD/TD differentiation.

[John_D4]

The TD and SD 3.0L engines are identical. It is only the tune that varies and the additional power is a reflection of the boost level. This is obvious when one goes and looks at the part numbers for the bottom end where there is no SD/TD differentiation.

That’s what I’ve been told by TRS also. They say the only difference between the SDV6 and the TDV6 is the tune. Same engine, turbos, etc

[kelvo]

However, Gally at autocade said he only takes the TDV6 to the SDV6 (untuned) figures and the SDV6 he takes to the TDV8 based on the SDV6 having stronger conrods and pistons than the TDV6.

Make what you will from above.
I was under the impression that Autocode would/could tune a TDV6 and SDV6 D4 upto the 215Kw/600Nm of the SDV6 SE/HSE Range Rover Sport as these use the same 306DT engine.

[coopers1969]

If I post mine up I can assure you it’s within 1% [emoji41]

Calibration took a little while but I have it sorted on mine.

Hey tombie how did you calibrate though the IIDTool. And if so what did you change in the settings

[Tombie]

Hey tombie how did you calibrate though the IIDTool. And if so what did you change in the settings

Good question, I’ve slept a few times and had a few drinks since then.. [emoji41]

[josh.huber]

Yes notedit is a lottery. Mine's done 195,000Km and had the remap, no issues to date (touch wood), DJ has the same car, and had had to replace both manifolds, others have done far less kms and had them fail, others done many more trouble free kms, definitely a random thing, can't seem to do much to prevent it.

My tune runs about 2psi over standard across the rpm range, my Rovacom shows a peak of about 178psi manifold pressie under hard acceleration held in 3rd . Current issue is the inlet plenum o ring clip dislodging, and one of the manifold outlet o rings is leaking. New orings on the way..

I was playing with my rovacom IQ today also and noticed a pretty wild boost figure, you'll need to change your settings to reading in kPa. Mine was at 178PSI its no wonder these things blow inlet manifolds, i looked down, seen the figures and pulled off the road to see what the hell was going on, the barometric pressure of 70psi made me feel better while i change the units back to kPa and re read the data. Ill send BBS an email tonight

[DiscoJeffster]

Haha. Yeah. These turbos are not large enough to generate 178psi or the system capable of containing it! I presumed it was meant to read kpa

[Eric SDV6SE]

Yes that did seem high now that I think about it, I’ll change the VCIQ settings to kPa and check on the BBS website, I suspect there’s quite a large offset that needs adjusting....ta for the heads up...

[josh.huber]

When its in kPa it is dead accurate against any other scan tool i put it against, i guess its just when someone set up the conversion they mis keyed a digit for the maths. Just stay in kPa on rovacom IQ untill they tell us there is an upgrade to the software, i emailed and left them a forum message, they seem to be pretty quick with these things

[Guru036]

Hey guys,

I just recently had my 2012 Range Rover Sport SDV6 tuned by Old Jaguar in Sydney. Must say I should have done it sooner!!

After looking at all the options I found pricing and "claimed" gains to all been very similar. The most interesting thing I found was most places wouldn't or probably couldn't tell me how the gains were made. Old Jaguar was different

The tune I recieved is based on the factory Jag XF 275PS/202kW/600Nm "Portfolio" tune, with some tweaks to bump up the torque to 700Nm. As it is based off the Jag tune the throttle response is amazing, gone is the usual SDV6 lag, and the more you push the pedal the better it goes!

The main reason I wanted the tune was to switch off the EGR's, which again all the tunes claim to do, but my concern was the possible overboost in the inlet manifolds as the EGR's are used to dump boost in over run. This tune turns the EGR's off from a emissions sense but leaves the overboost protection in place. Very happy with this as we all know how easily the manifolds can split.

I have definitely noticed a benefit in fuel consumptions in the time I have had the tune installed, roughly about 10%

Old Jaguar were very easy to deal with and was able to work around my busy lifetyle. Can not recommend them enough


https://www.google.com/url'sa=t&source=web&rct=j&url=https://m.facebook.com/oldjaguarau/&ved=2ahUKEwi4mrP3zrfmAhXXAnIKHZM-Bd0QFjAAegQIAxAB&usg=AOvVaw1vRdUJZKjNhKnjaAyeZhvw

[dirvine]

I have been toying with doing a remap but have difficulty understanding a few points. some made here. If the TD and SE are the same motor with the SE having a different original ECU map set up, then when you do a remap on TD why cannot a TD get the same figures a remapped SE? If all it is is a computer file, then both should give the same output after a remap. It seems to me that there is some other details we are missing that despite a remap the SE has more power after than a TD.

[Tombie]

I have been toying with doing a remap but have difficulty understanding a few points. some made here. If the TD and SE are the same motor with the SE having a different original ECU map set up, then when you do a remap on TD why cannot a TD get the same figures a remapped SE? If all it is is a computer file, then both should give the same output after a remap. It seems to me that there is some other details we are missing that despite a remap the SE has more power after than a TD.

Quite simply, it can.

Some tuners were led to believe that the TD had different hardware to the SD (and in some early versions it did) which altered the outcomes.

In AU the engines are mechanically and electronically the same. Those engines can all be tuned to the same level.

[BrianElloy]

Quite simply, it can.

Some tuners were led to believe that the TD had different hardware to the SD (and in some early versions it did) which altered the outcomes.

In AU the engines are mechanically and electronically the same. Those engines can all be tuned to the same level.

Very interesting

So can my 2016 Disco TDV6 achieve RRS SDV6 levels of output? My understanding was that the RRS SDV6 from the factory was at a higher state of tune than the Disco SDV6

Keen to understand what’s possible

[Pedro_The_Swift]

cant have a disco outperform a RRS,,, just not on old chap... [wink11]

[INter674]

250kw SC V6 Jag powered D4 can pants most RRSs all day☺

A 5.0l SC Jag powered RR would be a different story tho😐

[Cambo_oldjaguar]

Very interesting

So can my 2016 Disco TDV6 achieve RRS SDV6 levels of output? My understanding was that the RRS SDV6 from the factory was at a higher state of tune than the Disco SDV6

Keen to understand what’s possible
Short answer is yes, and no.

L319 TDV6 = 155kW, 520Nm
L319 SDV6 = 188kW, 600Nm
L320 SDV6 = 188kW, 600Nm
Jag XJ/XF = 202kW, 600Nm
L494 SDV6 = 215kW, 600Nm

The tune that Guru036 (David) has in his L320 is making 700Nm & about 215kW, which tbh is on par with most sensible tuners numbers.
Biggest difference (in my opinion anyhow) is the throttle response, the power comes on so much sooner, you don't need more power after that.


cant have a disco outperform a RRS,,, just not on old chap... [wink11]
You can! Indeed you must!


250kw SC V6 Jag powered D4 can pants most RRSs all day☺

A 5.0l SC Jag powered RR would be a different story tho😐
And a tuned 5.0L SC Jag powered Jag thumps a tuned 5.0L SC Jag powered RRS...


https://youtu.be/9py1WpIclaU

There's always someone faster...

[imaz]

You can do something fun though - you can add Paddle Shift to yours!

How difficult would it be to add the paddleshift on the command shift tranny configuration? Any programming or additional harness required?

Cheers
Imaz

[INter674]

Short answer is yes, and no.

L319 TDV6 = 155kW, 520Nm
L319 SDV6 = 188kW, 600Nm
L320 SDV6 = 188kW, 600Nm
Jag XJ/XF = 202kW, 600Nm
L494 SDV6 = 215kW, 600Nm

The tune that Guru036 (David) has in his L320 is making 700Nm & about 215kW, which tbh is on par with most sensible tuners numbers.
Biggest difference (in my opinion anyhow) is the throttle response, the power comes on so much sooner, you don't need more power after that.


You can! Indeed you must!


And a tuned 5.0L SC Jag powered Jag thumps a tuned 5.0L SC Jag powered RRS...


https://youtu.be/9py1WpIclaU

There's always someone faster...

Yes too true...there's always someone faster...BUT it's nice to have a delivery van that surprises RRs and jeeps and pajeros and Prados and cruisers and Ameroks and Rangers and HSV utes etc etc...

...they just don't see it coming😅

[John_D4]

Yes too true...there's always someone faster...BUT it's nice to have a delivery van that surprises RRs and jeeps and pajeros and Prados and cruisers and Ameroks and Rangers and HSV utes etc etc...

...they just don't see it coming[emoji28]

Reminds me of the v12 powered transit that they use on top gear sometimes