Quote: Originally Posted by British SD (original)
Interesting you would go to all that trouble. Measuring Octane used or fuel brands for economy or performance is over simplified since its only one side of the two essential elements. Air verses fuel mix.
Very interesting. Firstly though, it was no trouble
With the mileage I do I fill up often, I merely just filled up on the same fuel for a periodof time, and then changed for another period of time
Anyways...I had no idea this had any impact on fuel economy? I understood that on a cold morning that more petrol maybe used for the cold start? But after the engine had warmed I didnt realise the air temp was any sort of factor?
Quote: Originally Posted by Root Ginger (original)
It is basically a Cooper Challenge car without the challenge safety equipment.
They can be told apart from the 122BHP version by the exhaust. BMW deemed the car too loud to be approved as it was right on the 98dB limit (there's a gentlemans agreement that cars wont be above 98dB with a lot of manufacturers). They made
JCW change the exhaust and in the process lost a load of power. I've never found out if there were ECU tweaks to reduce the power as well.
Incidently the exhaust that was too loud found it's way into the
JCW sound kit!
My car produced just shy of 141BHP on a rolling road day too on Optimax.
Oh and yes, I did need a new gearbox! Under warranty luckily!
When was the version you had out? Will have to look out for one
Although to be honest, i hardly ever see any Coopers Works, never mind which version! There anyone else on M2 that has one?
Quote: Originally Posted by russyellocoops (original)
Filled up after a near crisis midway through the charity ball run with Tesco 99!
Gave it a good thrashing for 40 miles
Return home following the Miller's behaving in Convoy at 70 all the way home,
Just thrashed the pants of it over to Lytham and Back and recorded another new record on the way home!
Record low 230!
So is 350 - 400 achievable in a cooper???
It certainly looks like it with careful driving?
I have acheived 360 from mine on Tesco 97
But my usual mileage is around what you recorded. I suppose it also depends on what we class as "using a full tank"? The mileages I have recorded you see have been untill the red light comes on, but i believe there is around another 8 litres still in at this point so really there are loads more miles to be gotten out of the tank
