I went back to my data to recheck the info on the Baily Jag engine and found myself in error. That's what I get for working from memory! The downdraught Jaguar V12 was, in fact, a 4-valve design, not a 2-valver. However, I also found that the disposition from inlet tract to valve axis was...
This is a very interesting thread to me as I’ve been designing a modular horizontally opposed 12 / horizontal in-line 6 (similar to BMW K1200) engine using this particular architecture for some time now. The only application in which I’ve seen the combination of a downdraught inlet port and a...
The "pad" that you see on the crown is simply there to fill space. In engines in which the archetecture is extremely oversquare such as Formula One (~2.3:1 bore-stroke ratio), it is VERY difficult to achieve the necessary compression ratio (which is rumored to be in the regions of...
