Beryllium in engines drama

[ACRO]

Here is a picture why ferrari urgently motivated FIA to ban any +40gpa alloy for "health reasons" ...

The BMEP of the 2000 tipo 049 was average at best with a flat spot around 14500. The top end was respectable but we see that above 17500 , latest above 17800 , the output dropped again rapidly , the flame front propagation was simply at its very edge with the 96mm bore and this revs .

The engine reved to this limit without the need of al/be pistons since the stroke was very short - and berrylium would not help anything here.

Ilmor with its longer stroke had a better midrange but would blow up reving to +17500 to reach a similar topend without al/be .

Ferrari in 2000 was 96x41.4 and ilmor was 93.5x43.67 .

More than 2mm difference in stroke , that was much at 17500 rpm .

[Andi76]

nonsense !
there is no metal in F1 cars or elsewhere in engineering that has an elastic modulus below 40 GPa

Here is the rule change from the FIA Technical Regulations 2001
15.1.2) No parts of the car may be made from metallic materials which have a specific modulus of elasticity greater than 40 GPa / (g/cm3).

So what I said was completely correct.
And maybe next time you should do your research first.

what you said was far from correct

the elastic modulus E is the actual value (GPa) for each metal ie c.70 for aluminium c.210 for steel
the FIA's modulus is a fictitious value ie the actual value normalised for density
this for beryllium is uniquely high but unimportant in F1

except as a way to reduce the Be content of pistons etc
it looks as if this was effectively a ban on eg 62% beryllium but maybe not on (say) 10% beryllium
to satisfy both parties

And I never talked about anything other than the FIA value....