Originally Posted by
ffkiwi
I'd both agree and disagree with recycled flyer-a conical piston DOES offer advantages over a flat topped one-for 360 degree porting....
'ffkiwi'
Hi Chris,
what modern high performance 360 degree port model diesel offers a conical top piston?
Oliver, Parra, the Taipan 2.5's (and variants) or PAW don't because they know its pointless.
I would say that if the engine leans on the crutch of needing a conical piston to improve its running then there something really wrong elsewhere - probably with the transfer system.
Adding real estate to the piston crown also adds considerable weight.
I have an old Sokol Russian diesel that used to have a conical piston but now has a flat topped one and matching squish type head.
The piston is now 1/3 lighter and the engine runs FAR better than originally intended.
I am curious mate, what advantages are you alluding to?