- Aug 2, 2007
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I run a mondeo 2.0 TDCI and have been looking at these tuning boxes that offer better BHP, MPG etc etc anybody using one ?? if so whats your thoughts ??
PRECISELY!!!!They just fool the ecu into believing the fuel rail pressure is lower than it really is. So the pressure is increased to get more power but this throws out the fuel computer. Anyone saying their own economy is improved is reading the dashboard display which will now be about 5-7mpg optimistic.
if its that cheap andd that good ford would fit it as standardThere are different types of 'boxes', some as the others say fool the existing sensors so the management system tries to compensate, These tend to be cheaper passive units. (I say cheap but for what they are they can be rather expensive)
One of the potential down sides of any increase in power output over the standard model, is the ancillary equipment may not be strong enough to cope with the greater power or torque. Clutches, gearboxes and differentials come to mind.
The MOT is not interested in a tuning chip itself, but if the chip raises emissions beyond the MOT limits then the car will fail.
Some tuning companies offer to remap the ECU to give greater power These tend to be more expensive modifications, and they are not so easy to remove.
There are some manufacturers that use essentially the same engine block in a variety of different powered models. Here the power output is often the result of the engine map stored in the ECU. Upping the power can be as simple as changing the ecu map. But you may still be short on the mechanical strength of other parts in the drive train.
Any change to the power of an engine must be reported to your insurers. They may waive it through, but at least they have been told and cannot use the change as an excuse for declining a claim.
Forgot to add,yes John do agree with the insurance aspect.John,as per GTI,S and the like or petrol engined vehicles,i was not refering to.I was talking referance modern diesels only.I.e the op question.
To answer your question,hand on heart yes i would say a 30%uprate would be acceptable.But the way its carried out is the problem i can see as ive already said.If it was an oem fit i,d think it would be acceptable.An ebay special,then no.This was the point i was trying to make thats all.
From reading your post John are you implieing vehicles are built to different standards.