andrewb
New member
There seem to be a number of people offering to increase the power output of your JTD or Multijet engine. How do they increase the power? There are some people selling a "chip box" that plugs in to the fuel rail. I presume this fools the ECU into increasing the fuel rail pressure by interferring with the signal from the pressure sensor. Is it really as simple as that?
One company offer a remapping service for diesels for £310 plus VAT. £355 seems like a lot of money for less than an hour's work. Does this have the same effect as the "chip box" ie increase the fuel pressure? Or do they increase the turbo boost pressure at the same time? What about the injection timing? (Very important on a diesel)
To be perfectly honest, I don't like the way these companies' websites are so vague about what they actually do. Phrases like "the engines parameters are altered for new ones" are used. If they don't want you to know, they should say "we've found a secret way to get more power". I'm an engineer, and I want to know just how much expertese I'm getting for my money!
These questions have probably been asked before, but I'm new to this common rail diesel world.
One company offer a remapping service for diesels for £310 plus VAT. £355 seems like a lot of money for less than an hour's work. Does this have the same effect as the "chip box" ie increase the fuel pressure? Or do they increase the turbo boost pressure at the same time? What about the injection timing? (Very important on a diesel)
To be perfectly honest, I don't like the way these companies' websites are so vague about what they actually do. Phrases like "the engines parameters are altered for new ones" are used. If they don't want you to know, they should say "we've found a secret way to get more power". I'm an engineer, and I want to know just how much expertese I'm getting for my money!
These questions have probably been asked before, but I'm new to this common rail diesel world.