Wotcher Ian,
Fast jet pilots are expected to tolerate about 9g, and still communicate, operate systems etc. Mind you, 8g would just about pole-axe most people. They do have various aids though, like a g-suit and forced breathing equipment, as well as being trained for the job, physically fit and owning damn fine aviator glasses. When the aforementioned Tornado pilot mentioned he could pull 10G, his mate politely coughed into his hand. I'm not sure what the German for "bollocks" is, but it could have been a hint. Also, and I think this is the important bit when comparing drivers with pilots, these guys are geared up for negative G, the worst kind. Or at least so it seems, personally I rather like the idea of all my blood leaving my head and heading south, I can just picture my todger inflating like a party balloon and peeping out from the bottom of a trouser leg and giving me a wink. With the dragster pilots, I suppose most of their blood will drain from the ends of their noses and policemans helmets and head towards the arse area. If they hit 8g or maybe more (which would be right at the start I suppose) it's only going to be for a second or two.
I would imagine most people using this site have been in the odd quickish motor or two. A 0 to 60 time of 6 seconds is not that unusual, and that is exactly what 0.5G does (over about 80 metres).
H
H
i'm afraid i drive a diesel so the nearest i get to G's is Alton Towers
i'm not sure walking off any rides with an inflated todger is going to go down too well