Hey all

Was talking to a neighbour today who has had his 1.9TDI golf remapped, from 105BHP to 145BHP.

He got me interested in the whole process as he reckons fuel consumption has also improved as a result, getting 7mpg more on the 50mile round trip to work (Burnley to Preston, mostly motorway).

Has anyone else observed similar results? Why might this be the case, if true?

I've got the same engine in my Oct II, so seriously considering this if it is legit,

Cheers

D

True for petrol engines.

Sent from my GT-I9300 using Tapatalk 2

Who did the remap?

Yep, my remap on my old PD vRS gave me better consumption. It was about 5mpg better.

Not sure who did it exactly. He referred to a place in Bolton, i believe.

Yes. The economy benefit comes from further advanced injection timing. The factory didn't do this as it increases NOx emissions.

I'm still quantifying the result of the remap on my scout, but maybe 8% better economy.

Yes it can indeed improve economy as the increase in torque the car now produces aids it by allowing you to use less throttle to get the same results during acceleration thus saving fuel. There are different options for performance and economy remaps based on your preference so explain what you want and they can tune your car accordingly. I had mine done with a mixture of both in mind but I'm an excitable driver so it doesn't really save me a great deal unless I drive conservatively.

Another question - what about the subsequent insurance costs after a remap?

Has anyone been charged significantly more by their insurance companies after going through a remap?

No change for me. Averaged 51 as per sig since I got the car and I had it remapped after 8 months of ownership. It's quicker and still returns the same so I'm happy

My fuel economy has plummeted especially since going to stage 2....but that's mostly due my right foot now being much heavier

~5% fuel improvement with a tuning box. Insurance up by £35 with Admiral for a <20% increase in power.

On the remaps I have had ...I have seen from 3 to 7 mpg improvement....insurance went up up by about £20 to 30 a year....would recommend Shark if you want one done

I've had mine on the car for 3yrs and haven't said anything to the insurance company. How could they tell anyway it needs to be driven to know the difference from standard, if a car looks standard why would they think otherwise?!

Edited 31 March, 201313 yr by billywhiz040480

Ive got the. 1.9 engine aswell and after it was mapped i noticed and increase in mpg aswell i also got the egr deleted at the same time for free to save going back at a later date to get it done.

The egr? What's that then pal? (i know bugger all!)

I've had mine on the car for 3yrs and haven't said anything to the insurance company. How could they tell anyway it needs to be driven to know the difference from standard, if a car looks standard why would they think otherwise?!

Lets hope you never have a accident where you write the car off or even worse there is serious injury or a fatality.... I think you might be surprised how easy it to tell if its been remapped. There are a lot of insurers happy to insure mapped vehicle .. some of the comparison sites even have an option for maps now... it wont cost you a lot if any more in premium.

My Mk2 Octavis 2.0TDi is remapped from 140 to 185 BHP. Significant improvement in consumption (more than 10%)and bags more power and torque. Check out the REVO website. Sad bit I did a 120 mile trip today and got 67.2mpg. Granted it was not a burn up, but it was going with the traffic on a mix of rural roads and motorway.

My Mk1 Octavia VRs was awful on fuel with a remap. I ws getting 22mpg overall. But it was quick. 250BHP quick.

Always tell the insurance.

Lets hope you never have a accident where you write the car off or even worse there is serious injury or a fatality.... I think you might be surprised how easy it to tell if its been remapped. There are a lot of insurers happy to insure mapped vehicle .. some of the comparison sites even have an option for maps now... it wont cost you a lot if any more in premium.

I know what ur saying but 3 yrs ago when I had it done a standard VRS tdi cost less to insure than my remapped Sport by nearly £100 and I couldn't justify that at the time. I totally forgot about it to be honest until I read this post but its due soon so ill endeavor to look into it and get it sorted coz I feel naughty now if its as easy as you say to find!

Any improvement in fuel economy will be mainly due to a more efficient combustion process, probably at the expense of emissions, bearing in mind the whole stratified injection concept. Having more torque available at a given throttle position will be primarily because there is more fuel (and air because the boost pressure is increased) injected. The laws of thermodynamics mean you can't have more energy out without more put into the system.

Sent from my GT-I9300 using Tapatalk 2

Does that mean tax costs are likely to go up with emissions increasing after a remap?

Does that mean tax costs are likely to go up with emissions increasing after a remap?

Road tax is set for the vehicle based on the original figures

Sweet

Edited 31 March, 201313 yr by nutters_uclan

That is one of the most stupid comments I have ever read on Briskoda. A deliberate change of vehicle details without informing the insurance company WILL render the insurance invalid, and will leave you wide open to prosecution.

No wonder everyone else's insurance costs are going through the roof.

Mike

So because you don't agree with what I've said you've deemed it to be stupid, that's not what I would call acceptable forum talk now would you?! I was advised it to be very hard to detect and with it not being a large increase have taken the risk to not say anything. I agree it should be declared now with my renewal around the corner I shall endeavor to do so. How do you deem it possible for me to be the cause for your increase in premium when I've not been caught? I'm no law breaker, pay all my taxes and play by the rules, I just didn't think the increase was enough to pay nearly £200 extra a year when I had it done for economy and to save money! Enough of the Daddy talk please!

Edited 31 March, 201313 yr by billywhiz040480

So because you don't agree with what I've said you've deemed it to be stupid, that's not what I would call acceptable forum talk!

I hope to god that you are never on a stretch of road near me or any family or friends mate. Basically you are admitting to driving without insurance, if that's not stupid then what is?

Sent from my GT-I9300 using Tapatalk 2

I told my insurance company about the car being mapped when it was done but they werent interested and told me it wouldnt make any diffrence to my premium.