Type 4 mechanical compression ratio, Why is the factory compression so low? Options

[Beebo Kanelle]

OK, here's a fun one for the novice to ponder and you experts to answer:

Why is the factory mechanical CR so low?

and for reference, what is the highest mechanical CR that can be physically achieved? assume no octane limitations -

I'm just looking for the design limit for the highest CR that can be / has been in a Type 4 engine using available technology.

Thanks

[veekry9]

https://www.google.ca/webhp?sourceid=chrome...mposite%20metal

Something new this week,a new material with unique strength and conduction properties.
There are a few requisites other than the tools I've posted about above.
Again,this is no overnite sensation,a thorough examination of the demand for a T4 head is neccessary.
Pointless to make a part,or a car you can't sell,many have tried.
Now if it provided enormous benefits,why then,a few could be flogged.
Take a look at what the 911-4 Polo guy did,he created a demand by being perfect.
Illusions of instant gratification is rainbow dreaming.
It's not easy,otherwise everyone would do it.
Discussions of air/liquid cooled cylinder head design is what we're talking about.
The constraints as above define the geometry to some extent,which is why you would start there.
Coming up with your own set of poppet pipes is part of the fun,just like at work.
As for a schedule,I'm in no particular hurry,having done many years of hard deadlines in cnc machining.
Now a contribution by any number of wanna be engine designers is possible with the cloud based cad system.
A consensus of 97% of world wide 14 people might develop a reasonable part.
What features might be possible with a new material such as described.
A basic understanding of metallurgy is needed to 'get' this.

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