[DeTomaso] Speaking of exhaust systems...

[gow2 at rc-tech.net]

I have heard of flat cranks actually breaking cranks.


> In a message dated 2/27/12 19 31 50, cengles at cox.net writes:
>
>
>>           The flat crank is almost exclusively a high performance engine
>> component whose advantages over a conventional crank rapidly fall off
>> when
>> the engine displacement exceeds 4.0 liters, I believe. 
>>
>
> More to the point, supposedly flat cranks have enormous vibration
> problems,
> which are exacerbated by larger displacement.   Current materials can
> handle the vibrations when the reciprocating masses are small (3-liter
> Ferrari,
> etc.) but when you start talking about whopping great pistons and rods
> like
> in an American V8, the masses become too great and a flat crank would
> simply
> fail.
>
> Or so I've been told.   You would think that if a flat crank was feasible
> in our applications, somebody with deep pockets and a desire to be fast
> (or
> different) would have done it.   I suspect the testing has all be done
> already, and the idea proven to be a failure.
>
> Does anybody know otherwise?
>
> Mike
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