I'll attempt to clear this up. As I have said in another thread, one of the Spoon Type One mechs in a personal friend. Some time ago, I did ask him this question regarding the 'super' B16B. This engine was done as a research project as the last of the B series engines and therefore Spoon wanted to see how far they could stretch the engine limits.
Now, in Group A racing engines in Japan there is a 1600cc classification. Some other makers take part in this race category namely Honda and Toyota in the frontline. Group A racing research extends blueprinting and building of the engine with very highly advanced technology. I know that Toyota sells Group A parts for their 4AGE 4 valve and 5 valve. If you know Initial D you will know that the AE86 Trueno has such an engine. It makes over 240PS and reves past 11,000rpm.
Spoon being a veteran in racing has the technology to make the B16A or B into a high revving race like engine. One of the important components are the use of a block brace to strengthen the crankshaft and enable it to reduce vibrations at anything past 9500rpm. The cylinder head is meticulously ported to flow for 215PS above 9000rpm. One advantage of the B16B is that it uses the B18C high block enabling it to have a longer conrod and have reduced piston speed. This is a part of Honda's original design of the EK9 intending it for the 1600cc category endurance races.
Now, getting over 215PS is actually easy in a race engine. Making it reliable especially for endurance races is another thing. Spoon was trying to make this 11,000 engine for a street car. While it was wonderfully smooth and high revving, one of the problems with it was that it wasn't as tractable or user friendly as the stock engine or lets say a lightly tuned B16B that isn't designed to go past 10,000. Even trying to achieve more than 9500rpm without blueprinting the engine is difficult. I would suggest playing GT4 and comparing the Spoon EK9 and a stock one. You can feel the difference in drivability even in this game.
As for an explanation on blueprinting I have found a nice site extract:
Balanced and Blueprinted - Les Bengtson
The mech didn't disclose any more info as it would be company secrets. However Spoon doesn't actually make or sell this 11,000rpm engine. While they did sell the block brace, they have discontinued it. If you ordered a complete B16B now, you are getting a blueprinted stock B16B with the choice of a thinner head gasket. I don't know if you can still buy these engines now as they must be out of stock. There are only so many B16B going around. Instead, Japanese customers must leave their engine with Type One to get it rebuilt.
As for the engine being built on the S2000's F20C's blueprint, this is rubbish. Blueprinting is specific for each engine design. Furthermore, the F20C from the AP1 is still a factory engine built with the same technology as the B16B and B18C R. There is no magic here. Just racing experience and technology.
I have never heard of a redlining 14,000rpm engine either. Mugen is definetly not doing any B series revival as it is not in their business interest. As far as the change of genarations of technology goes, old cars and engines are considered obsolete. Amaury_Reno, perhaps you have you been playing too many video games? I would like to know where you got your information from. Please don't make false claims here.