And the combustion chamber is formed in the piston
and what a good idea that turned out not to be......
to basically improve the combustion, it's a very lively combustion chamber
Too right it's a very lively combustion chamber, it's moving up and down like a a a, piston
G
Yes, unfortunately, British engine designers of the mid 60's, including Hassan & Duckworth, became enamored with the efficiency of 2 valve "Heron head" diesel designs.
And then they made the "assumption", that those efficiencies could be transferred to gasoline burning designs. Cosworth, Ford and Jaguar, as well as others, all had designs that featured the flat faced "Heron head". An embracing of 1950's technology at its' best. Although they could be made "workable", they were never as efficient as predicted. The Cosworth SC series ended up being a huge disappointment in performance.
The downfall of all of these engines? Inefficient combustion at compression ratios tolerable for gasoline. Ie: about half of what is used in diesel (compression ignition) designs. The large amounts of ignition lead required to achieve "reasonable" power output, reduced the mechanical efficiency of these examples.
Like a lot of other "turd" engine designs, the Heron head can be made to work. The formula for success is:
A/ LOTS of static compression
2/ Direct fuel injection
d/ and/or a "blower"
Sounds like the perfect Land Speed Racing engine to me.
Saaay, what class would the Midget be in if it was powered by a 1000cc blown diesel Heron headed Ford or Cosworth? I have pistons for the Cosworth and 2/3 Ford heads. I'm sure I also have a 1 liter Ford block, a crank, rods, dry sump kit, etc, etc . . . . . . . . .
Or maybe an Austin Mini pickup truck diesel powered? We could race against Steve and the rest of the Salty Frogs. (Although I don't think they are French . . . . .)
HEEEY!!!! I just remembered!!!!!! BMC made a 'B' series diesel!!!!!!
PERFECT!!!!!! Now that's a
REAL turd!!!!
Buuut, perhaps I'm getting too far out of the barn here . . . . . . .
I'm gonna get a Dr. Pepper and make an attempt at awakening. Oh yeah, first week of April with a waning moon . . . . . .
Notquiteawakeboy