Of course you would need to spend £££££££££ on R+D for a set of tyres to get you there lol
[Edited on 1/3/16 by prawnabie]
http://www.thedrive.com/article/2378/the-2017-bugatti-chiron-might-break-your-brain?xid=the-drive_socialflow_facebook
I remember being obsessed with the F40 when it broke 200, then the F1 reaching 240 a few years later - then things went quiet. It was like the
manufacturers felt road cars had peaked and nothing would go that much faster. Then the Veryon came along blew every rule book and opened it back up
again.
It appears the Chiron may have a silly name, but is being road limited to 260ish, but with a lot more HP I cant see it not breaking the ~270 record
the supersport currently has.
P..s im ignoring the Hennessey Venom as the Americans seem to like to make their own rules up for how they claim records.
Given the relationship for drag is -
Drag force = 0.5 x drag coefficient (shape) x air density x frontal area x velocity squared
simplistically to overcome the drag (assuming bearing and tyre drag is negligible) you need the engine to do work -
If you double the speed you need 4x the power, so small increments of speed can mean big increases of power. I would expect that if the Veyron needs
1000hp to get to 250mph for a similar car in a similar environment then it will need 1750hp+ to get to 300mph but probably nearer 2000hp in reality.
Aero drag (Cd x frontal area) is a critical factor as stated above -
As an illustration Bill Warner (RIP) was clocked at over 300mph on a sit-on but streamlined turboed busa a few years with around 1000bhp and malcolm
campbell took the world land speed record over 300mph with 2300bhp with bluebird in 1935.
Obviously its a pretty rough comparison but numbers tell some of the story at least
[Edited on 1/3/16 by jambojeef]
Aside from the technical discussion (which I love by the way) I think the Chiron is a much much nicer looking car than the Veyron and pretty much any
of the other "hypercars"
Check out the 7 min ish walk around review on the motor trend youtube channel.
What we need is the kind of development that goes into war... In 1940 the spitfire was a slow dog but by the end was a speed machine. Tons of
development went into the merlin to keep it competitive. Problem is who wants to spend that amount of money to get to 300 on the road???
We have abandoned super fast mach 2 air travel for more seats but trains are getting faster and faster.
Trouble is to get a car up to 300 its using the same technology as the spitfire! All the other speed machines use jets or electricity!
Devel sixteen claims 350mph from a 5000hp v16 engine
Of course you would need to spend £££££££££ on R+D for a set of tyres to get you there lol
[Edited on 1/3/16 by prawnabie]
Should this not be how long before we get to 1000MPH? 300 was done some time ago.
http://www.bloodhoundssc.com/project/car
I think we should do a group build 7 that can achieve this.....
a 7s Cd is about 0.7, would probably need 10000BHP to get a 7 in to the 300mph zone.
How long before we get to 300mph? Who cares? You could never drive that Bugatti to the max in the UK. You'd be too terrified anyway, in case
you damage it (or yourself).
There was something about it on the TV - if you drove the Veyron at maximum speed you would wear out the tyres in a ludicrously short distance (very
few miles) but that didn't matter, because you'd run out of petrol way sooner, even if you started with a full tank.
quote:
Originally posted by David Jenkins
Who cares?
Well, the average mph on UK roads is getting slower and slower...
(and I'm very fond of my cave! )
quote:
Originally posted by David Jenkins
Well, the average mph on UK roads is getting slower and slower...
The thing is (IMHO) that a Ferarri is a worthy car because it's exciting and rewarding to drive at almost any speed apart from city traffic. A
Maserati is perfect for steaming down an autostrada/autobahn at high speed in relaxed style with a reasonable expectation that you won't get spat
into the scenery.
Those Bugattis are just a substitute for a small willy... usually bought by people who want to show off that they've got more money than
sense.
[Edited on 1/3/16 by David Jenkins]
Damn....best get my deposit back then....
I got the impression from the top gear piece on the last Bentley that the limiting factor for a production road car top speed was having a place to do it.
Have any of these cars done the speed they claim to do? or it it all theoretical, or in a wind tunnel!
Some TV presenter did it on a test track - James May perhaps - whoever it was, it was him that mentioned the tyre wear and fuel consumption.
A remember reading something that said that if a Veyron going flat out passed a stationary top fuel dragster, the dragster would still win over 1/4 mile.
quote:
Originally posted by scudderfish
A remember reading something that said that if a Veyron going flat out passed a stationary top fuel dragster, the dragster would still win over 1/4 mile.
quote:
Originally posted by designer
Have any of these cars done the speed they claim to do? or it it all theoretical, or in a wind tunnel!
I came back from LeMans one year, and we passed a veyron twice. (we had stopped for a break.)
conclusion:
a 10 yr old polo is at least as fast as a veyron
quote:
Originally posted by gremlin1234
I came back from LeMans one year, and we passed a veyron twice. (we had stopped for a break.)
conclusion:
a 10 yr old polo is at least as fast as a veyron
quote:
Originally posted by Ugg10
Given the relationship for drag is -
Drag force = 0.5 x drag coefficient (shape) x air density x frontal area x velocity squared
simplistically to overcome the drag (assuming bearing and tyre drag is negligible) you need the engine to do work -
If you double the speed you need 4x the power, so small increments of speed can mean big increases of power. I would expect that if the Veyron needs 1000hp to get to 250mph for a similar car in a similar environment then it will need 1750hp+ to get to 300mph but probably nearer 2000hp in reality.
decent article here
http://www.bbc.com/autos/story/20150320-how-do-we-get-to-300mph
Walking is quicker than a 300 mph car in most situations I can see! Road driving isn't an enjoyable pastime from my perspective, which can't
be unique, hence driverless cars...
The mathematics of speed/power/drag are just against 300 mph routinely.
But, let's have Utopian car future.... we 'drive' our 'cars' in a vacuum tunnel, on magnetic 'tracks', tram-like
power feed above to brushless motors.
All controlled by Microsoft's finest, so we just sit back obliviously and send each other messages and pictures detailing our interesting lives -
hey, just a minute, most drivers seem to do that already.
...or in the case of my 12 yr old nephew fail to understand that there is no WiFi in cars yet 
quote:
Originally posted by nick205
...or in the case of my 12 yr old nephew fail to understand that there is no WiFi in cars yet
Blimey, for a website largely about the enjoyment of cars there are a lot of really miserable gits who seem to really get no joy from cars.
A road car that can do 300mph is no more pointless than a road car that can do 200mph or 100mph or even 71mph if you just boil it down to the
legalities of life.
I'd rather VW had a few of their engineers working on crazy projects that create a bit of buzz and fun rather than having them all working on
optimising the closing noise of the latest Polo glovebox or something equally mundane.
Cheer up
Anyway, perhaps the Koenigsegg Regara might break 300mph first, its claiming over 1500bhp and 2000Nm of torque from a petrol/electric drivetrain.
http://jalopnik.com/the-amazing-tech-that-makes-the-koenigsegg-regera-a-hyp-1762221011
Actually its limited to 248mph by the engines redline.
No Joy?... Well, certainly not on the road. Traffic, surface and enforcement. Misery.
Car designers seem to be focusing more on arranging their LED lights and how to integrate the phone, while owners seem to have no other wish for
'modification' than to arrange their number plate numbers and letters to produce something only meaningful to them. This is what it is.
Now... get that car on a track and it all makes sense. How long I(we) can do this before the NIMBY noise/environment brigade stop all such pointless
activity is open to some worry.
There are a plethora of cars that can exceed 200mph these days, car manufacturers are pushing the boundaries all the time.
300mph is a massive technical challenge, I,m sure it will get broken but we may have to wait for this.