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There are plug in power/economy control box boosters for the Diesel engine on ebay. Some about £80, some about £400. Anybody actually fitted these?..... does the economy improve or does the extra performance deny the economy improvements. And why such a difference in similar products?..... is the cheaper one rubbish?...or is the other one overpriced?.
 

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Anyone who believes that an £80 box off E-Bay can improve what a manufacturer spends 1000's of hours developing is off their trolley. All they do is allow more fuel in which obviously improves power and also increases emmisions. Cars with DPF have had problems when modified and your warranty will be voided if it is discovered you have been changing factory settings or adding unapproved engine mods. Your insurance company will also want to know and charge you more.


People who think they are a brilliant buy are deluding themselves.



If you wantto gofaster buy a more powerful car.




They are snake oil, take your £80 down the pub and enjoy it, better still save £400 have a party and invite us all.




Paul
Edited by: suttonseven
 

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I don't know what the difference is between the £50 and the £400 units is but they can work.
Most engines direct from the manufacturer usually have just aneutral tuned setup (aimed at everyday driving styles), high performance cars tend to have a more personalised tuning done to the engine. Ford and other manufacturers often bring out different models all with the same engine but with difference performance, all the difference is is the tuning of the engine.
This is where these tuning chips come in. You can remap the engine or add a chip.
Both are essentially doing the same thing.
By changing how much fuel and the timing can increase performance and optimise its efficiency by burning all the air in the cylinder.This means that the engine works less hard to get the same performance in BHP/Torque.
Doing this would mean that if you drove everywhere at full throttle yes you would loose economy by burning more fuel but if you drove to normal speed limits and gradually accelerated along with all other driving Eco driving techniques you would in fact save fuel due to the engine now working more efficiently, only about 2-5 mpg over what you would get if drove the same style with a standard enginethough.

You would have to way up the benefits over cost as I wouldn't be buying a Tuning chip from Ebay as you cant tellwhat you are gettingeven if it is a branded name it might still be a fake,this leaves you having to spend £300+ from a reputable supplier.

2-5 MPG increase in performance (providing you always drove carefully) would take quite a long time to get your money back and you would also invalidate your warranty along with the fact you have to tell your insurance who would inevitably put your insurance up, costing more money.

In short the chips are really just for those who want to increase performance over possible savings.

This site helps to explain a bit more. http://www.performancechips.com/performance-chip-results.html



Hope this helps.
 

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VW in their range of 1.9 diesels put the identical engine in many different models with a BHP range of 110 to 190.It is possible to retune to a higher output without changing the chip.On the Skoda Fabia VRS for example, agood tuner can increase the standard 160 to 190 BHP just by adjusting the chip and balancing the whole system out,it increases the fuel consumption. As we say in Yorkshire " tha dunt get owt for nowt"
 
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