Re-maping my Diesel ST Mondeo
- Thread starter ThundyCat
- Start date
To be fair I probably would get slightly better mpg compared to a standard car, but as said it's never going to happen unless you don't like the soot pedal.
£400 is about right for a properly done map with warranty - it's expensive if that's a guy coming to your house with a laptop
£400 is about right for a properly done map with warranty - it's expensive if that's a guy coming to your house with a laptop
Well the wife uses it for the school run, so can save some pennies. And when I use it I can enjoy the extra oommph.
bull crap
had my taxi remapped from 150 to 185-190 bhp I also noticed a 3/4 mpg gain measured over a period of 10k miles
This usually tends to be the case for most diesel remaps. More bhp and torque allows for less throttle opening.
I'd say remap, you'll save a few pennies when the wife takes it (don't expect to recoup your £400 investment though). And as you say, some more ooomph when you want to take it out.
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How much does this sort of thing roughly put on to your insurance?
Diesels don't have a throttle.
I remapped mine and fitted a Decat. (2.0 TDCi 130)
It pulled a lot better but there was always that niggling feeling in the back of my mind wondering "When are the DMF or Injectors going to fail?"
Never happened to me but my remap was reasonably "safe" in that i requested him not to max everything out, just increase things gradually. Took a couple of runs but TBH it was a bit too much fuel, VERY smokey afterwards.
It pulled a lot better but there was always that niggling feeling in the back of my mind wondering "When are the DMF or Injectors going to fail?"
Never happened to me but my remap was reasonably "safe" in that i requested him not to max everything out, just increase things gradually. Took a couple of runs but TBH it was a bit too much fuel, VERY smokey afterwards.
That makes literally no sense at all. You get more BHP and torque by injecting more fuel. A diesel has no throttle as such, your right foot simply determines how much fuel gets injected.
I suspect most of these remaps show apparently better economy because the fuel computer is no longer calibrated properly.
![[TW]Fox](/data/man-of-honor/2009.png){kind=avatar}
I re-mapped my Vectra from 150 to around 195Bhp. It made quite a noticeable difference especially in 3rd gear pickup. I generally drive like a grandad so my MPG has always been fairly good but I would say it's a little better since but not by anything more than 1mpg at most.
No idea about Diesels, but a lot of the petrol turbo remaps tend to run a bit leaner, so when you're driving sensibly you're using less fuel.
I assume it is a similar story for the dervs.
[TW]Fox;21180689 said:
Wow, you really don't understand how remapping works.
Anyway, the remap will allow better performance which includes fuel being used more effectively to create "power and torque."
Remapping is all down to efficiency.
However don't bother. You will strain everything else and you will most likely just increase the chances of extra hassle and BS. Just keep it stock, if you want something faster then just buy something faster.
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With a properly done remap the idea is to change the power and torque curves - remove spikes and make the car 'feel' more driveable. Generally speaking peak torque will be moved lower down the rev range and will peak higher. The boost is turned up along with various other fuelling parameters to give the bhp increase but this, imo isn't the main benefit of having a diesel car remapped - my car doesn't feel like other civics that peak then hits a brick wall at 3k rpm, rather feeling like the power now keeps building. Don't get me wrong it's still a diesel motor and has only 180bhp so it doesn't turn from a reasonable performer into an m3 chaser, but is much nicer to drive and gives a real in gear giggle.
It undoubtedly puts more strain on components especially if you're giving it the beans everywhere - I don't but I'm also prepared to change the turbo earlier than might otherwise be expected and although the car had a new clutch in 2010 and 25kish ago it would not be a shock to be if it didn't last 60-100k. I'm not saying either of these things will happen, but it's a possibility - especially with the already ropey clutch on the civics
Go in with eyes open and remapped cars are great, if you believe the rolling road printouts (I don't but they are useful for showing that an increase has been achieved and to see the way the power curves change), think you'll instantly achieve 5mpg more and that nothing will break then you'll only be left disappointed.
It undoubtedly puts more strain on components especially if you're giving it the beans everywhere - I don't but I'm also prepared to change the turbo earlier than might otherwise be expected and although the car had a new clutch in 2010 and 25kish ago it would not be a shock to be if it didn't last 60-100k. I'm not saying either of these things will happen, but it's a possibility - especially with the already ropey clutch on the civics
Go in with eyes open and remapped cars are great, if you believe the rolling road printouts (I don't but they are useful for showing that an increase has been achieved and to see the way the power curves change), think you'll instantly achieve 5mpg more and that nothing will break then you'll only be left disappointed.
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