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Peak power delivered ~7,800 rpm
Why so close to the red line?
This question has no nuance to it, I have no idea about such matters and am curious.
In the MG, the power comes in nicely at about 3.5k and the redline is (I think) at about 5.5k ( @BRM ?) Pretty sure peak power is not up at the 5k area.
mashton
Dammit
I'd got into a bit of a fugue with the specification of the 911 engine - we have a range of options in terms of stroke, from short-stroke (72mm) 3.4 litre screamer to 4.0 litre long stroke (85mm) stump-puller.
The head design, valve size, cam profiles, compression ratio and so forth were all dependent on what we picked here.
The engine designer was asking me what to use - and I was getting somewhat frustrated because every answer I gave ended in further "well, this trades off with this, which trades off with this".
We weren't getting anywhere, basically, so I decided to change how we were working.
Rather than me choosing a stroke I've set some goals and asked Mike to pick whatever combination of stroke/cam/valve/etc would get us closest to them. They are, in no particular order:
Whether that's delivered from 3.7, 3.9 or 4.0 litres I don't care.
I'm very interested to see what specification comes back.