M6 power output

I read something the other day that I didn't believe so I thought I would ask the experts!

This guy was claiming that non of the BMW M6s that came to this country had the quoted 286bhp. Apparently Munich detuned the engines buy lowering the compression ratio to give around 230bhp. The reason was because they considered the petrol in Britiain to be of poor quality and not good enough for the 286bhp engine.

Does anyone know if this is true, or is it a load of rubbish.

If it was true then what would have been the point in buying the M6 since the std 635 had 218BHP and was a lot cheaper. 

I await your higher wisdom!

As far as i am aware having chatted with Howard on this subject most early M6's were of the correct 286 BHP, but some of the latest Highline model sixes were well down on power as had an American spec engine management. Certainly my friends M635 has just been rolling roaded and it gave only 226bhp at the wheels approx 240 at the fly wheel, but is soon going to be rechipped which should bring it up to the correct measure. Howard also comented to me that his later model M6 did not feel nearly as quick as his older one and that he would be pursuing a rolling road tune iminently.

Like horsetan having never owned an M6 or had mine on the rollers it's difficult to comment more than this.  Would love to see what my old girl can do though.

Oh  ....... its on Pages 18 & 19 if that helps !!!!!!!!!!!!!!!! 

Mega bucks earning solicitor, fleet of 6 series cars, own stables and ranch, but....................

A non member !!!!!!!!!!!!!

Well, what can one say ????????