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our van has been chipped as far as we can make out as we hardly change out of 5th on motorways and when we follow my dad with his van i have to hold back at the hills as he slows us down
most drivelines are more than strong enough to take the strain of the extra power due to the loads that are put on them when used as an original van but the extra power is not that much in comparison as motorhomes get an easy life
"With the remap the engine burns the fuel more efficiently which lowers emissions."
Sorry but that is just is not correct. You have been given sales patter to make you feel nice and part with your money!
The re-map or add in-line boxes like the old Vanacken units do similar things. They allow the input of fuel to increase more in advance of the spin up of the turbo. Also more fuel can be put in and the rev limit also increased in some cases. Turbo boost can be increased by delaying operation of the waste gate. Yes you will get more power and more torque.
But this increase in performance is obtained by eating into the large margin between the emission limits for new vehicles by government legislation and the much lower limits set for MOT inspections.
I read the other day about a motorhomer who purchased a good condition used motorhome. "It went like a train" he said. One day the engine went B A N G and the engine was dead. It was not old, still under warranty when it was taken to the commercial dealership. "Its a new engine guv", said the man. "Only one problem, we found one of those booster boxes still wired into the engine so I a afraid there is no warranty".
Where are Vanacken now?
And those companies who charge similar money and let YOU re-map your engine, well if that goes pop it was you who did it!
You will not be suprised to learn that our new tardis is well maintained but in standard trim regarding performance.
Thank you clivemott I think we've arrived. I think people who tinker with their engines and believe all the hype are in self denial. I'm leaving mine well alone!! Or more correctly, to original spec and well maintained.
Engine remmaping, and little boxes you buy off an online auction site and wire into your injectors/fuel pump/ecu are two totally different things.
This is a very basic description of the difference between them.
This is going to be a bit long and boring and is not at all in depth
Little boxes off online auction sites:
Normally have to be connected to injectors/fuel pump/ecu or a combination of these, or can just be plugged into the ecu in series.
They all fool the ecu ( engine/electronic control unit. Can also be called fuel control unit/ etc ) into supplying more diesel petrol as and when the particular unit decides.
Some are very good, some are very bad.
I.e at supplying the correct amount of fuel for the given load and therefore creating, or not engine problems.
Advantages of little boxes off auction sites:
Have never used them personally. But have experience of them being used.
Engine remmaping:
Engine remmaping is actually just flashing ( Erasing data and adding data ) a chip in the ecu this is the main electronic control for the engine, remmaping is normally much safer than add on boxes as the maps are researched and tested for each particular model ( turbo models will also retain fuel cut/overboost protection ). you also have to go to a dealer with the right equipment therefore you have a come back if your engine goes pop if its not in warranty.
As for warranty the manufacturer will not know if you have had a quaility remap. ( Unless you tell them )
Advantages of remap.
Everyone thinks their van/car etc is enviromentally friendly. Especially if they bought it on that premise.
All vehicles are set up to pass emmisions testing at a certain rpm its around 2500-3500 ( I havent checked the rpm for ages so could be well out, but its still a fact ) on most vehicles this falls within the rev range that gives greatest power torque, manufacturers lean out ( decrease fuel to ) the engine at this point to pass emmisions, the engine is not running at its most efficient at this point.
Remapping normally smooths this out and can increase fuel economy.
Never had a problem with a vehicle that was mapped for road use.
Disadvantages of remap:
If you drive the vehicle as you did before you will increase fuel economy including going better up hills in the same gear.
But. If you use the extra power all the time for example, accelerating more quickly, higher top speed and increased towing power you will massively increase your fuel consumption.
Some manufacturers actually supply and fit a factory approved chip that doesnt affect warranty and is all above board .
I dont work for anyone that maps vehicles but all of my vehicles are remmaped.
Funnily enough except the motorhome, I want to go slowly in it.
The best fuel consumption difference on my vehicles pre to post remap.
24mpg to 30mpg Ive done 20,000 miles in that vehicle this year.
I am actually boring myself now and I like this sort of stuff.
If you need any more info look on car tuning websites.
Hope this helps and sorry for boring you all to death.
Many Vauxhall garages offer re mapping on there new cars as part of a performance upgrade.
Out Local VW dealer has just started doing the same.
That tells me all I need to know.
Don't forget a lot of Trucks are re mapped for economy as the are limited to a top speed this is far easier to achieve with a Truck, they will be doing over 2,000 miles a week and I have not heard of a problem with a re mapped Truck.
The 2.8 Fiat has 2 diffrent power output, the european one is about 20 BHP more than the UK one, how did Fiat do this? and do the have problems with them?
"With the remap the engine burns the fuel more efficiently which lowers emissions."
Sorry but that is just is not correct. You have been given sales patter to make you feel nice and part with your money!
The re-map or add in-line boxes like the old Vanacken units do similar things. They allow the input of fuel to increase more in advance of the spin up of the turbo. Also more fuel can be put in and the rev limit also increased in some cases. Turbo boost can be increased by delaying operation of the waste gate. Yes you will get more power and more torque.
But this increase in performance is obtained by eating into the large margin between the emission limits for new vehicles by government legislation and the much lower limits set for MOT inspections.
I read the other day about a motorhomer who purchased a good condition used motorhome. "It went like a train" he said. One day the engine went B A N G and the engine was dead. It was not old, still under warranty when it was taken to the commercial dealership. "Its a new engine guv", said the man. "Only one problem, we found one of those booster boxes still wired into the engine so I a afraid there is no warranty".
Where are Vanacken now?
And those companies who charge similar money and let YOU re-map your engine, well if that goes pop it was you who did it!
You will not be suprised to learn that our new tardis is well maintained but in standard trim regarding performance.
Dont say you have not been warned.
C.
A poor, badly informed post Clive. I know little regarding tuning boxes, be it digital or analogue. However I re map plenty of vehicles each week. It is easy for my customers to re map their own vehicle, we supply the map and the customer re-maps the vehicle. This really is not a difficult job, as I have supplied the map I warrant the job. I would therefore ask you speak from direct experience.
1. If you have a remap then that surely is a modification and will affect your insurance cover. Should you notify your insurer?
2. If remapping works so well then why don't the manufacturers do it in the first place? Having set that I suspect some of these mods will put extra strain on the engine.
It's not for me.
I informed mine and made sure it was in the schedule, but it made no difference to the premium, Safeguard.
I don't think most peope realise that probably more than half of the newish cars around today are remapped/chipped, sprinters are almost identical except for the mapping as are most vans, you pay extra for a bit of programming.
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