Skoda re mapping
Discussion
An off-the-shelf aftermarket map will be something thrown together by somebody with totally unknown qualifications, and sold to you by somebody who probably has no idea what they're selling. A custom map will cost more and represent what some tuning specialist could come up with in an hour or so of trial and error. There's no reason to expect either of these to work better for a standard engine than the map the manufacturer will already have spent millions fine-tuning. Do you seriously think the manufacturer will have missed any opportunity for significant power or economy improvements?
Yeah I’m quite sceptical about it just wondered as a lot of people swear by them and when I typed my reg in it come up with about 40% increase in bhp and torque on the tdi and included is the car being on a dyno before and after but I didn’t want to do any damage to my engine in the long run
I had a "tuning box" fitted and set up on a RR.1.9 110 PD [which was actually 119.5] went to 142 and a mountain of toque. Made the car, on boost, totally undergeared..
Made a hell of a difference. Performance in roll on in 5th was immense.
MPG went up.
I also went through 3 cats and eventually a cracked head with loss of coolant.
Depends what you want. At the time it was ace.
Now, I'd save my pennies and restore a really fast car [that corners] and for daily use be as incognito as possible.
Made a hell of a difference. Performance in roll on in 5th was immense.
MPG went up.
I also went through 3 cats and eventually a cracked head with loss of coolant.
Depends what you want. At the time it was ace.
Now, I'd save my pennies and restore a really fast car [that corners] and for daily use be as incognito as possible.
I had a previous car remapped, went from 140 to 187hp. Had a custom map done on the rolling road as I didn’t like the idea of just loading a remap.
Mpg improved on the on board computer but not when worked out at the pump.
No issues with reliability, was still on its original clutch at 140k but I never used the power from a standing start.
Mid range for overtaking was great.
I have the same engine in both current cars and haven’t repeated it.
Mpg improved on the on board computer but not when worked out at the pump.
No issues with reliability, was still on its original clutch at 140k but I never used the power from a standing start.
Mid range for overtaking was great.
I have the same engine in both current cars and haven’t repeated it.
GreenV8S said:
Do you seriously think the manufacturer will have missed any opportunity for significant power or economy improvements?
When tied with emissions BS and all other sorts of nonsense. Yes.But the quality of the remap is what it will all boil down to. Somewhere there may be compromises...long term reliability may be one. But tens of thousands of cars get remapped all the time, often by clueless muppets flashing in any old crap they've pilfered online and I guess most users are happy.
But IMO if it's just a daily driver, you want it to be reliable, no issues etc etc...just leave it alone. If you want something faster, buy something faster.
If you really must go down the re-map route....ask around and get trusted opinions of reviews of whoever you intend to use. And an they put your car back to exactly the way it was before if things dont work out ?
Simple answer is NO they cannot. They might just load another generic map, but they can never restore the car to exactly what it left the factory with.
GreenV8S said:
An off-the-shelf aftermarket map will be something thrown together by somebody with totally unknown qualifications, and sold to you by somebody who probably has no idea what they're selling. A custom map will cost more and represent what some tuning specialist could come up with in an hour or so of trial and error. There's no reason to expect either of these to work better for a standard engine than the map the manufacturer will already have spent millions fine-tuning. Do you seriously think the manufacturer will have missed any opportunity for significant power or economy improvements?
Even by internet standards this is utter rubbish 
.Ive used Angel tuning twice for 2 Fabia VRS's and Regal tuning once for a VW Transporter 1.9tdi and both showed a huge increase in BHP and MPG, used local tuners as couldnt be bothered driving miles. Heard good things about Pendal and not had any remap related problems on any of the vehicles
It doesn't per-se increase MPG but as it is theoretically working more efficiently rev/rev then it is theoretically doing the same work for less throttle input, so driven at the same speed/acceleration it theoretically uses less fuel.
How much of the theory works in practice may well be another story entirely & not one for me to comment on.
How much of the theory works in practice may well be another story entirely & not one for me to comment on.
GreenV8S said:
More power could be achieved by raising the boost limit and/or allowing it to over-fuel, but I don't see how it could improve mpg at all, let alone hugely. This is unlike petrol engines where there is scope to lean the mixture out (if you don't care about emissions).
Discussing the reason why (at the time) all local Taxis were Focus estates (Ex police as it turns out). The driver mentioned he wasn't sure if he should get this one chipped for MPG like his old one had been. The improvement was apparently small and you had to be sure you'd do enough miles to make it worth while.Given Taxi drivers don't spend money on anything, unless it's required/will save them cash. Then anecdotally this seems to suggest, it can be done. But it's probably not worth it for MPG gains.
GreenV8S said:
How does a diesel remap improve mpg?
Through remapping for more efficiency without care for emissions.Even plug in tuning boxes can easily improve both power and MPG, most recently a friend bought one of the brand new Trafic's, 1.6 twin turbo....always bound to be a nightmare. But you'd hope...and he expected the new 1.6 to be more fuel efficient than his last 2.0 Trafic.
He got a shock lol. It was about 10mpg down ! And back to Renault and naturally they say there is nothing wrong with it.
He bought one of the DTUK boxes and as much as I'd be a sceptic too, it did indeed make it drive better, more power and upped fuel economy to that of his old van. So he was happy.
But there's nothing uncommon about petrol or diesel remaps allowing the user better fuel economy.
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