I think it's a warranty-issue.


Yesterday I read through all the 14 (?) pages on wilddog but couldn't find any compilation of data or dyno-graphs. Will it be available?
Edit: Found the data.

They were posted in PDF format for the bikes tested... attached ~!

Notice however the lack of power on the one HP2

Attached Files

Boxer Dyno-2010-05-28.pdf (272.6 KB, 590 views)

The other HP2 doesn't look good either, and they are both modified...

Don't these bikes have "knock" sensors to overcome this very problem?
Or am I missing something?

Yeah, knock sensor is amazing thing for a modern high-compression engine, but only to a certain level since it has its limits too.

R1200-s run extremely lean in stock mixture already (and they are one of the most fuel-efficent 1200cc currently around as well thanks to that and very developed EFI mapping, since BMW has a long history with EFI on their bikes)

...and then guys put better breathing filters (light foams, K&Ns etc - even more air!) and better flowing exhausts (Akrapovices, Remuses etc etc - more flow, less backpressure, faster circulation of air thus more air) = fuel mixtures go ultra-lean with those mods = extreme heat on cylinder upper heads. Combine this with extremely hot weather conditions. This all lean, dry and hot running probably helps to collect more carbon deposits on the piston heads, cylinder upper wall and valve heads as well = pinking that knock sensors can't help at some point if there's just too much of it.

I reckon we'll soon see burned holes in the piston heads if guys keep heavily performance-modifying their modern EFI bikes and running them in extremely hot climates - and it's not just BMWs, most of the new modern high compression fuel efficent EFI bikes run close-to-extremely lean mixture in stock already, the physics remain the same on all engines.

THIS is exactly the type of damage we want to try and avoid and prevent. The "suggestions" that have been made has ranged from 1. Changing our riding style, 2. Adding Octane Boosters, 3. Staying out o fthe 4000 - 4500rpm range.... to even "Not riding on very hot days"
The worst suggestion was that we should just trade the bikes in before the 2 year warranty lapses - so we won't have any problems.
My old R75/5 is now over 35 years old and still rides like a dream.... you want to tell me BMW has digressed and that their new "superior" 1200's are only expected to last 2 years?
Even if I can afford to buy a new bike every 2 years - which I cannot - it's still NOT ethically or morally right to then knowingly allow a possible problem bike to be sold to a fellow biker, where the engine "might" be damaged or even have catastrophic failure when the warranty is no longer covering the bike?

My not wanting or allowing people in different climates to change the airflow mapping, or voiding warranties if we even look at Power Commanders etc is nothing short of bullying tactics, when all we really want it to have a very expensive bike - running correctly as it should!

I realise the EC have strict emmission controls - well I live in Africa and one single Taxi's emmissions will destroy the good that 100 bikes are trying to do.

I delivered a letter & ultimatum to BMW yesterday (Thursday) Sort it out - or refund me!

I have just read this thread and would like to know the result of your ultimatum.
Cheers,
Yuksel