Oh come on DH, they spend about 2 seconds at 8g during turn 14, that's absolutely nowhere near 2 hours like you're suggesting, and even if this was too much one of the effects of lose of control by the driver due to the gee would be the car straightening up and the gee returning to normal. Also, I don't know why you think we don't know much about gee force and the body, the Americans did a lot of research on it whilst training people to go to the moon in the 60's. They found out, for instance, that the human body is far more tolerant of lateral gee force (like in an F1 car), than longitudinal gee force (like in a fighter plane in high climb) and can take far more than the sustained 9g 'safe' limit of the aforementioned high climb, as it won't suffer from apoxia as the blood has not been drained from the head, which pretty much makes that argument irrelevant.
I've made a couple of errors here, sorry. Firstly I didn't mean 8g solid for 2 hours, I meant that in a 2 hour race they'd be experiencing up to 8g. However, your suggestion that the car straightening up if the driver lost control would solve the issue isn't valid. Whilst travelling around a corner at 150mph, if you lose concentration due to g-force and allow the car to straighten up, at most circuits you don't have the time to correct for this before you've hit something, which isn't particularly safe. The high g-force will have contributed directly to the accident.
As to your next argument, why would the circuits suddenly become unsafe? What reasons are you giving for that statement? Do you have any sort of proof that driving down the straight at Monza at 300mph is so much more dangerous than doing it at 230, over what would be normal for the extra 70mph? If you think putting up the danger levels won't have an effect on the racing, c'mon, of course it's going to have an effect, the faster you go, the tighter the margin between success and failure.
Ok, I agree that travelling at 300mph in itself is no more dangerous than travelling at 230mph - until something goes wrong, and I don't think a 70mph crash is something to be sniffed at! In the event of an accident, you have debris travelling much faster than the track is currently designed to cope with, leading to the possibility that some goes into the crowds, or further threaten marshals. If you go off, the gravel traps, or tarmac run-offs aren't long enough to scrub enough speed off the car before impact. If the car digs in, you've got a greater force trying to induce the car to roll. When the car reaches the end of the run-off zone, the current Tech-Pro barriers (the best available to F1) are only tested to stop an F1 car at 135mph. Beyond that, the technology doesn't exist to safely stop an F1 car in a short distance. Instead, you'd currently need larger run-off areas, moving stands further away. That will be a huge cost to many F1 circuits already struggling to make enough money to keep their race on the calendar.
Also, yes the margin is closer between success and failure, but then if failure means death or injuries, then in my opinion thats the wrong direction for the sport to take. I think the sport should reward those drivers capable of making good, clean overtakes, without killing those incapable of it.
These cars aren't much faster (if they are faster) than the 80's turbo's, they are, however, far safer, far stronger, have far more grip, have semi-automatic gear boxes with paddles rather than a clutch and gear-stick, so the driver can have 2 hands on his power assisted steering wheel as he puts his foot down an accelerates with his traction controlled engine. This was not the death laden 60's and 70's.
It's petty I know, but traction controlled has been gone since 2008, and by my count at least 4 drivers died during the F1 turbo era.
However, on the topic of g-force in general, I've been looking into it and do agree that the human body can tolerate more. The work done by
John Stapp makes for fascinating reading. I don't think F1 should be pushing the boundaries of human resistance to g-force, Stapp suffered serious, permanent eye damage as a result of his work (and I don't think any safety equipment could stop blood pooling in the eyes, causing capillaries to burst, etc), so an acceptable level has to be maintained.
I'd love to hear Cosi's thoughts on increasing the speeds in F1, I'm sure there are other physical factors I'm missing here.