Quote:
bezman wrote:
@Benny - you must remember these are race engines, where because of the cam the power band has been moved WAY beyond where you or I would be driving the engine, huge valves, amazingly worked head, the high lift and LONG duration cams (in this case as much as 310* and more) the power band is prob from 6500-9000+rpm, when they shift (e.g. from 2-3) the revs would drop about 3000 rpm, putting them back in that sweet spot, and having an extra 1000 revs for down shifts and holding that gear into the last hair pin in tskuba is priceless :)
Maybe I didn't explain my point that well, I totally agree with what you have said, [I am rather familiar with what performance can be gained from the humble A-series]. The point I was making is thare seems to be an obsession with with making [claiming] A-series engines exceed 10,000 RPM. You yourself stated that 6,500 to 9,000 is right on the money for making great power with the A. So why rev them any harder if there is no real point. Im sure there are times when the A-series would see in excess of 10k e.g downshifts and missed gear changes etc. It is a wise practise to build the engine with that extra safety rev zone to deal with the RPM spikes when and if they occur.