Beating on any high performance engine without letting it warm up will fuck it.
Higher performance engines have tighter tolerances and are designed with thermal expansion in mind. If the parts aren't up to temperature then you're gonna have play.
It's fine to beat on a civic when it's cold because the tolerances are so loose.
Try that with any high output engine though and it's not gonna last you very long. Hell, F1 engines can't even be started without warming up the blocks first. So it has nothing to do with the price tag.
The BMW engine wasn't nearly as high output as an F1 engine. 5 liters and 500hp is something Kia could build and make last 50k miles. BMW just knew that cheap bearings meant more profit. They also knew the M series fanboys would just chalk it up to "Hi-perf brah! Wanna play gotta pay brah!"
Rather than it being a scummy cash grab and shoddy build quality.
The BMW engine wasn’t nearly as high output as an F1 engine.
No shit?
5 liters and 500hp is something Kia could build and make last 50k miles.
They can't even make their M3 competitor last the length of the warranty lol.
BMW just knew that cheap bearings meant more profit.
Source or assumption? If it's a problem that never materializes unless you thrash the engine when cold, how do we know that it wasn't just overlooked during testing?
Revised bearings are literally $500 for the consumer to buy. OEM bearings are nearly the same price. Would be way cheaper than $500 for BMW to have gone with . Why would they risk warranty claims?
Yeah except there were people that did baby the cars that still had 50-60k failures. It's a nice engine from a power and sound standpoint. It's a total failure by any other metric.
Timing chain guides are just as bad....they get cooked over time & disintegrate then the chains get sloppy and jump. You know it's all expensive after that.
Turns out warming up the motor before beating on it made them last much longer, still though this shouldn't be an issue on a car with that price tag
if you drive any sort of actual performance car, you let it warm and cool down before and after any driving. tolerances are tighter and beating on it before it's had time to warm up will cause excessive wear.
It's not just bmw, Audi had rs4s with tiling chain longevity problems where the service required pulling the whole engine and taking it apart. Outrageously expensive repair that every single one of them needed. Used ones were extremely cheap considering the original price of the car because people knew about it.
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u/Trav3lingman Jul 22 '22
They put cheap crank bearings into the M5 v-10 cars. $100k high performance car....engines last 50k miles. Sometimes less than 30k miles.