MegaSack DRAW - This year's winner is user - rgwb
We will be in touch
[quote=mattyfez ]they may be different to the manufacturers generic audience.
Ah, all those people who want less power and worse fuel economy, good point.
Micks has options with a custom map.
No, with the standard map the ECU has options to deliver power/efficiency in a way that keeps pollution within legal levels (for the test at least). The OEM map is optimized around that constraint. The ECU uses a map optimised for the ~20C grey and drizzley midlands conditions of Derby. The original pollution tests were even probably done in conditions not too dissimilar because that's pretty much standard EU weather.
If Mick had his greenpeace hat (a fetching Rastafarian beanie to be precise millinery fans) on he might have it remapped to produce even less power, use less fuel and produce even less pollution, but I don't think that's what Mick has in mind does he?
double post
Unless Mick puts his map through a Euro 5 (or 6, or whatever) compliance test then his options aren't really a fair comparison. They are options to take a legal car and make it illegal (C&U breach).
They were talking about changing the MoT in 2018 to test for NOx and others. Don't know where that got to, but it would make remaps less attractive (unless you change the map back for the MoT but then you really are a knob).