HI Lads,
don't mean to sound like an old fart but just watch the BMW diesel and for that matter any other manfacturer when tuning them
I have never really been a big fan of diesels except for towing!!!, however the developments are brilliant and for a while i was going to get one and tune it,
However, one of my good mate is one of the head developers at FORD UK on the diesel front, We were chatting about the latest hit of diesel tuning and he told be some intresting stuff,
Most, in fact nearly all Petrol engines nowadays are built with around about 30-40% tolerance in power, this means you can put up to 40% through the engine without having to chance anything!! (unless you are going to the FI route)
He then ws telling me about the diesel that they are and every other manufacturer was testing, and they found that to get the power out of them they were ending up with only a safety margin of around 5% now that is nothing, He then told me that of course they take all of the competatiors engines out and BMW are on average only 4% tolerance in the engine and Audi just 5%
Not trying to scare noone of or anything like that just a warning on the whole diesel side!! i think there will be alot of diesel engines in the scrapper before 2010 and alot of people regretting wanting that £50 chip!!!
cheers