Hiyall
I have a Freelander TD4 HSE auto on a 55 plate
and what I would like to ask all you boffins out there the following questions on tuning my landy.
- I have read of a modified EGR bypass valve, does this gadget work? my neighbour has a disco and he says it does, what do you guys think?
- I have also be reading of these "chips" which can increase the bhp to 150, have any of you fitted thes and if so which one do you recommend.
- I am interested to hear of any good tuning mods which are available for my Landy.
Thanks
Guys
TD4 man
I've got an 03 plate Td4 Auto & have fitted both the egr bypass & the Roverron Synergy & they are both well worth the effort.
When I first got my car it was slower than treacle.
Firstly I did a full service including replacing that all important crankcase breather filter assy which helped a little.
Next up I tried just removing & blanking the egr vacuum hose which gave a slight improvement on lighter "throttle" openings, so I got the egr bypass, fitted that & found a real noticeable improvement across the rev range.
I then followed Rons recommendations & started using Millers Powersport 4 diesel additive at every fill-up but found it needed to be used at double the recommended dose, & found this to be a great boost after about a thousand miles or so when it had fully cleaned out the system (I wouldn't be without it now).
Finally I treated myself to one of Rons synergy units which took it to another level, though you'll have to follow Rons instructions on the maximum setting for the automatic box which I think was position 6 from memory.
The only very slight downside has been that the auto box has been a little less smooth with the changes compared to when the car had nearly zero power although it's not massively noticeable & the auto box will hang on to the higher gears for longer (good for economy) before needing to change down - this can feel strange going up a hill sometimes it feels a bit like a manual car being in too high a gear though a prod on the old accelerator soon sorts that out.
Economy wise I found the egr bypass to be worth about 1-2mpg better or so, the Millers gave about 3mpg improvement & fitting the synergy made it 1mpg worse though I was using the extra power that it offered.
I would definitely recommend that you go for it, it will transform your car though even with the 150+bhp it's still a typical auto diesel with what feels like a narrow power band. Where you'll be massively impressed is going up steep hills like they aren't there even from a standing start. This still impresses me with mine 18 months later.
you wont regret it.
