- Dec 20, 2011
At 325g they’re not as heavy as they look, not much heavier than stock 850 pistons.
Steve, I don’t think I suggested they didn‘t work! Just seems to me that removing all that metal, only to basically add some of it back onto the piston, seems like unnecessary work when you can get just as good squish, that’s a lot easier to set up (flat squish band + flat piston = very easy to fine tune) without all the work, and have a slightly lighter piston as a bonus!
Design a piston and have it manufactured, one piece of work, but serves as many engines as you have batches made.
The heads were taken as blanks, valve angle set from first principles not re-angled. Second piece of work but needed for every new head. Unless you only build race heads!
If you are a factory team that can get part worked items it isn't really any more work to do it.
I think what Jim Schmitt is asking for is the chance to start from the same baseline the factory team did and have the widest range of options open.
I think what I hear is sound; that the first issue will be to manufacture a fairly standard item that could be used by anyone. Evaluate product and market and go from there.
The baseline Fullauto is already a good race head, even with standard valves, for a 750.
Today, I doubt I will personally buy another new head. I tend to think volume market is replacing worn out heads with a handful of people doing what we have done and build new engines from scratch each year!
Unless the race classes are changed and the use of the Commando twin based racer becomes a really good racing option again!