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why doesn't anyone use the apfelbeck head layout ?

beautifully engineered ? BMW M10 ?Apfelbeck? - Radial Valve Engine for...

https://www.google.com.au/search?q=...QVVNiSG8728QX41YHQDA&ved=0CAcQ_AUoAA&dpr=1.88
 
Hi

I thought,that way back the Honda XR used a R.F.V.C. cilinderhead?
Back '85 or '86 or so?

Grtz Rens
 
thats right Rens

the difference is that the designs above are looking at asymmetrical valve sizes and/or placement to encourage swirl

for example the apfebeck design has diagonally opposed intakes/exhausts
 
Last edited:
Hi Bushie,
Thanks for the lesson, but a usual i didn't pay attention:eek:
Very interesting concept though!

Grtz Rens

p.s.Hope i will be back in a few days.
 

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