I am considering going forced induction with my motor however I currently have a 3.875 stroke and 5.85" Rods making it difficult to bring the compression ratio down a great deal.

I plan on calling JE and or Diamond on Monday, but right now I would just like an idea of how big of a cc dish I could expect to be able to run.

Thanks,

Dave

 

I bet JE could make you a set of their -31cc blower pistons with the correct compression height. It's surprising, but it doesn't add a lot to the cost.

Rich

 

Ever see the weird "dish" they put in the top of a modern diesel piston? You could drop a small Volkswagen into it. Of course, the piston also weighs about as much as that Volkswagen, too.

As with most things, it's in how it's designed and around what kind of criteria for the environment it's designed to operate in. <---- grammar of previous sentance would cause my 8th grade English teacher pop a Valium and shake her head in disapproval.

It's not a subject that is worth thinking about. Unless, of course, you design pistons for a living. Get as much dish as you need to hit your desired compression ratio and move on with life.

 

Its called a recumbant bowl design, the injector sprays on top of that crown in the middle, and creates the swirl as it rolls down the peak, and then up the walls of the bowl. Diesels have no combustion chambers in the head, the piston is where the chamber is at.