Ferrari Mailing List: Re: Ferrari Filed a Patent for an Engine With Pill-Shaped Pistons

[Rick Moseley (ramosel]

 Doug,Here's a pic I was looking for on the Honda.  500cc motorcycle motor.  
Honda NR.   Honda called it "Oval Pistons".   Now think about how hard it will 
be for Ferrari to get their valve alignment with the long axis of the  pistons 
at 90° to the crank.   If you like this sort of stuff, look up Allen Millyard's 
YouTube channel.  He's been making crazy bikes for a long time in a shop the 
size of a bedroom.  True, old school, Brit Craftsman.   Recently he's been 
restoring the Norton Nemesis for the National Museum in England.  I think the 
V8 in that bike was the March 1.5L V8.


    On Tuesday, March 25, 2025 at 08:45:26 AM PDT, Rick Moseley <ramosel [at] 
pacbell.net> wrote:  
 
  Honda did this years ago...  only they oriented the piston length with the 
crankshaft and used two con-rods per piston.  Made for a very tight V motor 
with long length.  But a V4 almost the size of a V8 but with all the power and 
fewer moving parts.  The Ferrari version (of course) is the reverse.  Pistons 
are 90° rotated to the crank centerline. It will make for a very wide motor but 
it will be very short.   Honda did it to use 8 valves per cylinder.   Try that 
geometry with the Ferrari layout....  yeah, it's not going to go well.
It will probably be futile anyway.   If Honda could have made it work, they 
would have.   They could never get the rings to seal correctly on the flat 
sides of the oval.
This seems like a Ferrari concept developed over a multi-Cinzano lunch.


    On Monday, March 24, 2025 at 07:07:49 AM PDT, Michel Savard <mysavard [at] 
videotron.ca> wrote:  
 
 
https://www.thedrive.com/news/ferrari-filed-a-patent-for-an-engine-with-pill-shaped-pistons?inf_contact_key=91f6789b756d86b2477a0ba7af31e578680f8914173f9191b1c0223e68310bb1
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