Quote:
Originally Posted by V8FunNaturally
you're naive and biased. Tuned engines provide higher output than stock engine by putting the engine under more stress day after day to deliver it. That's Fact. Not debatable.
No matter how loud you scream you'll have to face the consequences. Your tuned engine should be your first concern on the spun bearing issue, not fuel, not ethanol, not additives, not geographic region, but your tune.
A spun bearing is a catastrophic sudden failure, as seen in all cases, with almost never any foretelling signs or sound. So keep telling yourself yours runs smooth. That's almost funny.
Bmw over tight design on the bearing/journals makes the tolerance on those parts almost impractical. That's old. It's the nature of the design and there is a small risk with owning this car. But When discussing how to mitigate this from the consumer side then avoiding tune is common sense !
Ethanol, or fuel quality, that's all just superficial talk, start by returning your ECU back to stock if you want better odds for your engine. Even if bmw limited "know how" resulted in a less than 100% bearing problem free units. They should still reject any spun bearing engine that had a tune. That's in the warranty. Some people tuned their cars at delivery in their first week of owning the car (many posts back in 2008,9,10).
Where we all agree is that bmw is reponsible for stock maintained cars. For tuned cars, not at all.
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For you I'll repait my question because I had no answer ...
And the blown S65's with only 6-7K miles on it... stock cars and not tuned,builts of end of 2013 ?
Note : I like to say the facts such as they are and what we see and what is happening with our S65 tuned or not , I'm raised that way ...Nothing against you , actualy against nobody on this forum , I only stand behind the truth .....allways do !
So is it normal that an engine blows ...a stock engine with only 6-7K on it ?
Is it normal that engine blows after 10 months ? A stock engine under BMW warranty ?
BMW replaced that engine under warranty...no problem !
But after a year it blows again ? Also normal ?
Look my friend it's alll about that I have some numbers from the ///M German factory but I can't tell this public , and that's the raison why I've some special angry reactions on here ! (I'm reading comments without the depth info of the Worldwide S65 problem)
Would love to get some answers on my questions and after reading your comment I will see if I send my info to you via PM or not ....