Range Rover 4.4 TDV8 Tuning | Remap + Dyno Runs + Decat + DPF Delete + EGR Delete (Myth busting) 

Great video Jordan. Don't forget to find the emissions plate and remove it or 'drop' something over it - the likelihood of it passing it's mot at the limit on the plate(0.5m-1) is very slim, but without any evidence it's got to be tested at default(1.5m-1). Of course I didn't tell you this😊😊😊

I'm calling Greta 📞😂

Thank you for doing the educational testing on behalf of the rest of us! Very good and detailed info. As you said, these haven’t been well documented for 4.4 TDV8s.

I've done a stage 1 mapp on the engine, stage 3 mapp on the ZF Gear box, full egr and dpf delete, 2012 4.4 tdv8 on a long run I'm getting 40mpg, around town I'm getting 30mpg. Also I've serviced the ZF gearbox runs like new... 👍

Be interesting to see how long the turbos last now with no back pressure, really you should of kept the cat as it hardly effects performance but stops a lot of smells

Interesting video Jordan. I dont own one, i dont think i'll be owning one any time soon, but i tuned in as im enjoying the content. I used to work at JLR, engine calibration team, specifically the DPF team..... youve done yourself a favour there, fantastic work. One thing to add. You mention that binning the CAT wont do anything. This isnt quite true. If the v8 is like most other diesels (i didnt work on the TDv8, this was a little before i worked there).. to regenerate the DPF (burn out all the soot), it injects lots of fuel very late in the cycle, that fuel goes out the exhaust and burns in the CAT to generate the heat. So removing the CAT only will eventually result in a blicked DPF. I would agree with some of the ranters that this will now be putting out a bit of soot, and its not great if you leave it idling outside an inner city school. But and its a big BUT it now produces a lot less CO2. Youve swapped long term climate change problem for a shirt term local pollution problem, in my opinion this is better :)

Hi had my egr deleted and blanked off,,,,the guy who did it modified a 3.6 blanking kit, really made a difference, as you say smoother, more responsive better mpg and goes like a rocket ...approx 30 round town and 36/38 on run, drove to south Spain last month approximately 3000 miles return and a 1000 miles whilst I was there and didn't miss a beat...great video thanks

The moral that I took from the story is, “Don’t be a dickhead!” Thanks for the video!

Let’s see more action on the Capri build with the Mercedes engine in let’s get it up and running properly without smoking😅😅😅

The DPF And the Cat fitted to cars are a big con,I had a tdi scirocco I had the DPF Cat and EGR Valve mapped out and a sports exhaust fitted I ran the car on Shell V power it passed an mot emissions test with a stage 1 remap,my round trips to work are about 40 miles each day the mpg was about 45mpg.the car was new when It with 50 miles on the clock.I sold it with around 37k to a mate of mine and is still going strong

😮Add a hydrogen generator into air intake. It will give you near zero emissions.

Excellent really good video 👏👏👏

Thank you ive got the v8 tdi sport ive been looking for this sort of info for ages

As you say, The ZF transmission on those is rated to 700Nm. This means it’s designed to operate up to that level and provide a long service life. Even the SVR models are capped at 680Nm, and for good reason. With the DPF and DOC present, the 4.4 TDV8/SDV8 will still readily make far more torque than the transmission can tolerate, and most tuners will post torque figures in the region of 840Nm post remap, with or without the emissions control present. This level of torque will significantly shorten any existing life the gearbox, torque converter and the diffs had in them, especially when the extra performance is enjoyed! 🤪 It’s torque that damages drivetrain components, and at over 840Nm, unless driven like a saint, they’re going to let you down. A replacement gearbox is a mission to install on those, and also very expensive! Your diffs also aren’t cheap to replace, as you’ll discover! I speak from many years of experience in this area. 😉 Given the forthcoming changes to UK legislation and the MOT, it’ll not pass another test unless you reinstate the emissions control systems beforehand. If you now run that car in your garage, the exhaust gasses will take your breath away, whereas before hand it would have been tolerable. God help anyone stuck behind you in the queue at a drive through on a damp day! 🤢 I wish you luck with the channel and I’ll look forward to watching future videos on your journey with this Range Rover. 👍

great vid, i have L405 4.4 sdv8 remap to 390hp. trying out premium diesel average 20 mpg to 22 mpg.

I did my 2012 l322.. 2 years ago… done 40,000 miles since then…. No problems since

Great video,good to see some one actually do this, what was the name of the company that did the remap and where in the country is he please ?

When you went back to DPF/Cat, did the EGR stay disabled and cause any issues? I've kinda had enough of my intake system being gunked up by it. I basically want to disable the EGR valve and leave everything else alone.

Love the video. Leave it as it is now Jordan it's as it should be now before they choked the life out of it. Need you to keep it like this so we know if it does do any damage. You're like a test pilot Jordan keep it up. Paul

Terrific Content

Did you do a post map smoke test out of curiosity if so what was it?

Run it on b100. Problem solved..

Great to see you trying out what all others were too cautious to try!

Will deleteing your egrs save your turbos from failing

Put an x pipe on them unreal

My local car tuner recomends leaving the CAT in place so it will still go through a MOT without any problems. I have done the DPF and EGR and get no smoke whatsoever, the car runs so much better now it can breathe!

I’m sold going to get mine done

Another great video, thanks.

Do the temperature sensors fail or throw up fault codes if you gut the dpf?

So the EGR just needs a remap in order to delete it rather than physically blanking them ? reason im asking is because i got this fault code EGR Temp Sensor A - Circut High ( Permanent ) P040D-00 and thought if i can send it to someone to blank out the EGR entirely by coding rather than changing or addressing whatever parts that needs replacement for that .. Thoughts ?

what's the rim size and tyre size you are running on the rr?

Hi pal, I’m currently removing my exhaust too I’ve undone the clamp in front of the cat and the bolts on the other side. It doesn’t want to come off from the from the cat side. Everything is loose and the exhaust twist just won’t pull back, was yours a pain to remove ?

Still on original turbos?.

One of my favourite channels , down to earth guy who loves tinkering with cars , keep up the good content 👍

Lovely, but I would worry about how much the transmission could take if you kept it like that.

Where was it tuned and what was the price thanks

I get a chatter noise in mine after running awhile when I accelerate hard?? Can you help

Fantastic video.. thanks for sharing 👍🏿 What fuel you running it on? Supermarket or premium diesel?

Sorry I meant emissions test.

heavy on fuel--wow

V8 diesels sound genuinely good without an exhaust lol

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