Budget tyres

That will be the Apollo with tiny writing on the side wall, I have no ides what they are like but they are one of the cheapest to buy. I never knew they were available in 225 45 18 though ?

Cost price tyres, Free tyres,and half price fitting!

Whatever. I'd call doing 60 round a very short tight left 90 in damp and freezing conditions not exactly pootling about.

I can't imagine a roadside emergency tyre repair kit would be much use in the case of a blowout.

I never studied Physics at school, but those must be some impressive tyres all right.

I know what to call it. Bullshit.

The lateral acceleration of a vehicle can be worked out very easily. In units of metres and metres/second the G force is speed squared / corner radius / 9.80665.

Alternatively in mph and feet it is speed squared / corner radius / 14.96

So even if you drive a car capable of 0.9g in the dry and 0.7g in the cold and wet the required corner radius at 60 mph would be..

Hardly a "very short tight left 90".

I can't imagine a roadside emergency tyre repair kit would be much use in the case of a blowout.

yep, perhaps a satellite phone is a more useful bit of kit

I've just spent half an hour conducting a fascinating exercise in calculating my cornering G force using detailed multimap.com maps to work out the corner radii. I'm going to start another thread with it rather than add to this already lengthy one.

I don't care. You weren't there or in the driving seat.

Here's the bend. It's not 90 degrees but less than that however it feels like it goes through 90 degrees. Plenty of people seem to manage to come off on it.

Here's the bend. It's not 90 degrees but less than that however it feels like it goes through 90 degrees. Plenty of people seem to manage to come off on it.

Jeez, its hardly a "very short tight left 90". Looks more like a medium/long 45 curve.

It's not when you drive it.

Measuring off the map it has a radius of about 400 ft. The same as the motorway off ramp in my other thread. 60 mph in the wet would be quite fast through it in an average car. About 0.6 G force. Speedo error means you probably aren't actually going that fast though.

It ain't a tight 90 by any stretch of the imagination though. It's a medium speed sweeping bend.

Running a few calcs through my simulator a good road car would take it at about 70 mph true speed in the dry (0.8g) and an F1 car with current levels of downforce at about 105 mph (1.85g).

Not such a big increase in speed as you might think but G force increases with the square of the speed.

Conor (Conor ) gurgled happily, sounding much like they were saying:

Bwahahahahahaha

It's a sweeping 45deg.

TBH, you don't really want to be trying it at much above 60. It's quite hard to judge from that photo what it's really like when you're driving it. Heading from Beverley to Driffield, the corner does tighten up for a short stint quite severley - it's not a constant sweep if you know what I mean and is more like a 50p piece kind of bend.

That appears to show a 45 degree bend with a radius of somewhere between 400 and 500 feet.

Ian

How did you work out the radius of 400ft, and do your calculations take into account the width of the road? If it's quite wide, you can obviously get a bit more of a "racing line" which is effectively going to reduce the radius of the turn.

Having said that this particular turn is quite long compared to the width of the road, so probably the width doesn't make much difference here.

Having seen the bend you're actually talking about it's not bullshit.

But when you said "very short tight left 90" I imagined something more like this:

A friends Honda Civic comes with a can of the emergency foam refill stuff and nothing else. Wasn`t much use when he hit a paving slab and ripped half the tyre away!