Fossicker
SupporterGood 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
Wizard
Subscriber1, 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.
2014, MY14 Discovery TDV6, Fuji White (2018-Now)
2003, Discovery 2a, Td5 Manual, Zambezi Silver (2012-2018)
2007, Adventure Offroad Campers, Grand Tourer (2015-Now)
Fossicker
SupporterThanks kelvo,
Cool, N = no DPFOriginally Posted by kelvo
Any ideas what the cost of a remap is? I will give them a call next week.
ForumSage
SupporterThe 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.
2005 D3 TDV6 Present
1999 D2 TD5 Gone
Master
SubscriberI 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.
Before: Ser 2a LWB, Ser 3 S/W, 1979 RR 2 door, 1981 LR Stage 1 V8 (new), 1985 LR 110 V8 County (new), 2009 RRS TDV8
Now: MY13 D4 TDV6. "E" rear diff. Cambo's magic Engine & Auto Tune. 1968 Austin 1800 Mk1 auto (my 5th)
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.
Fossicker
SupporterThanks 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.
I found the following post by Tombie stating the EGR can be deleted via a map for the D4 3.0:As I understand, it is not practicable to delete the EGR valves on the 3.0 via a remap.
If it is only mapping the EGRs off, I am guessing this is a cost effective mod.
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