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ECU Remapping 1.8 Freelander

Discussion in 'Land Rover Freelander' started by jimbo2107, May 14, 2012.

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  1. jimbo2107

    jimbo2107 New Member

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    As the title implies I am considering getting the ecu remapped, has anyone had this done to a 1.8 freelander and did it show any gains over std settings. I have just recently changed the caravan for one weighing 1250kg and find that I'm up and down the gearbox a lot more than when towing the old van at 1050kg with the fuel consumption between 17-20mpg when I used to get 22-25 with the lighter van. I know the increase in bhp is only 12bhp but is it worth the expense of approx £150 or am I wasting my time.
     
  2. Singvogel

    Singvogel Well-Known Member

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    I don't think that you will benefit much.

    I would be thinking more along the lines of finding a TD4.

    I can tow a fully loaded 2 axle 2 tonne gross trailer with mine, and still keep up with the general flow of traffic.

    With a load equal to your caravan I would not be under any strain at all.

    Depends how much towing you do of course.
     
  3. jimbo2107

    jimbo2107 New Member

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    Thanks for the reply, I do about 2k per year with the van on, have looked on the Caravan club match site and it complains about the power output on all Freelanders, 32 bhp per ton for the 2l diesel, 35 for a Td4 and 37 for a 1.8 petrol yet you look at a car with 42bhp per ton and they don't have a problem with it. I used to have a MGF and put a 52mm throttle body on that and it's response was much improved and might just be a cheaper option to chipping, which having spoke to a company in Sheffield the rewards don't rate that high and have now abandoned that idea. I am happy enough with the general performance just wish I didn't have to change up and down so much, so I might change the throttle body and see if it does improve and I can do that for about £50.
     
  4. Singvogel

    Singvogel Well-Known Member

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    That's what I was thinking of when I said it depends how much towing you do.

    Unless you're going to go touring in the highland of Scotland I would not be spending a disproportionate amount of cash on uprating it.

    IMHO the Caravan Club BHP/ton is not a good indicator of towing ability in every case. The 1.8 Freelander may well have more BHP/ton than the TD4 version but that power is only available at high revs (hence the gear changing required to keep the revs up) however the diesel has loads more torque low down where you need it for towing.
     
  5. martin1512

    martin1512 Well-Known Member

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    As has been said before, you are better off changing to a TD4. The cooling system on the 1.8 struggles enough as it is, so tuning the engine is not going to help that at all. The other problem is the nature of small petrol engines. They only make a useful amount of torque, when you are in the higher rev range, and tuning the engine doesn't make any noticeable difference at low RPM's, which is where you need the power when towing.
     
  6. Mantamad

    Mantamad New Member

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    What age is your Freelander 1.8? it needs to be MEMS 3 ECU (with coil packs) to enable it to be re-mapped.

    Best people to contact are Z and F tuning

    Click

    They are well recommended on the MG Forum and these guys wrote the original map for MG/Rover
     
  7. jimbo2107

    jimbo2107 New Member

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    Just a quick update on the Freelander, well I have now fitted the 52mm throttle body and I can't believe the difference. Used to get 22ish around town ( living in Sheffield it's nearly all hills) I have done 220miles at an average of 27mpg with no dual carriageway use, the engine responds much quicker pulls up hills in a higher gear without problems altogether a much better drive all it cost was £35 and my old throttle body. Just to finish it off I have also replaced the gear linkage, so it's no longer like stiring porridge trying to find a gear, happy with it all, too right!
     
  8. The Mad Hat Man

    The Mad Hat Man Well-Known Member LZIR Despatch Agent

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    did yu get the metal or plastic throttle body?
     
  9. jimbo2107

    jimbo2107 New Member

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    The body was the 52mm alloy. As i've already said the difference in the flexibility is brilliant and all for £35.
     
  10. Vissie

    Vissie New Member

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    I have drive alot of FL1 1.8k's before and after plastic to alloy throttle bodies, it does make a difference in throttle response. Its mostly because those plastic ones stick and hold randomly when hot. They drive crap.


    It sounds like what your confusing with your question about mapping your 1.8k, is the difference between bhp and torque.

    bhp is very unimportant compared to torque when it comes to towing. If you tow alot, reguardless of anything, diesels do it better.
     
  11. Diesel Do

    Diesel Do Well-Known Member

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    What's the diameter of the standard throttle body? What are the 52mm ones off?
     
  12. jimbo2107

    jimbo2107 New Member

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    No I'm not confusing bhp and torque for pulling power but I do accept your is torque is the requirement for towing. The answer to the throttle body question is as standard it's a 48mm plastic or alloy, the plastic ones were made by S.U as in the old carburreter, they went out of business around 2001 then Dellorto again a carb' maker started producing the alloy ones. The 52mm was std fit on the MG ZR160 and MGTF135/160, and can be found on flea bay or try ringing Jill or Darren at MGFnTF bitz in Glossop. They are a straight swap for the 48mm takes about 10mins to swap, google MG 52mm throttle body and you will find all the info you need. 4mm might not sound like a big difference but it is actually a 17% increase in the throttle area. Hope this helps.

    Do not be tempted with a 56mm as this is too big and will reduce performance not increase it.
     
  13. jimbo2107

    jimbo2107 New Member

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    Latest update on the new throttle body is 29mpg around the hills of Sheffield doing the school run.
     
  14. Diesel Do

    Diesel Do Well-Known Member

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    Did a bit of looking and people are changing to the alloy manifolds too? One plus being you get a proper gasket;) not sure you benefit much more than that tho
     
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