Re: In what distance would a Bugatti Veyron beat that Vauxhall dragster?

In article <6hbli.14619$vA3.3731@[EMAIL PROTECTED]
>, 
burgerman@[EMAIL PROTECTED]
 says...

> >> >>
> >> >>
> >> >
> >> > Still remain:
> >> >
> >> > - does the Vauxhall stays aerodynamical stable at sustained high
speeds
> >>
> >> No reason why not. Many drag cars go faster and are the same shape.
> >
> > That is not what I ment: the car travelles at 200 Mph and is blown off
> > line by a gust of wind. What happens? Or the car travelles at 200 mph
> > and hits a bump. Does it take off?
> 
> You like drama dont you. No 200 isnt that fast. I have been on turbo 
> streetbikes that can do that. It does not feel any faster than 150 or
170. 
> Just numbers. Many cars at many events are severely modified and do
these 
> speeds.


:)))

Yes: you have been on bikes that can do that but have you do it? And not 
over the odd 1 mile but over a longer distance?

> Even my old V8 sierra tow car would do 150 with its ye olde knackered
1.6L 
> suspension. It had Colway 205/60/13 REMOULDS on which were supposed to
be 
> safe to 70...
> It was completely stable and no problem. Used to throw chunks of tread
off 
> occassionally but what do you expect...

Sure: I raced a Bridgestone tire which was safe to 16 mph (a garden 
tractot tire). When I complained (modestly) about vibrations the 
Bridgestone people asked what speeds I drove, went white and refused to 
sell me the tires again...

> 
> You are only talking about another 33%  I may have splashed out on some 
> proper tyres for that! But that car would also have been fine with
anothr 
> third more speed.
> 
> 

Sure again: you are acquainted with speed and aerodynamical forces, the 
relation between them?

FYI: it is not linear.


> 
> I think that 1 minute or 60 seconds, will be allready a very very good
> estimation.

> > Many pro mods make this much power and run several seasons on a single

engine.


I like that, a lot even only I have never met a serious competitor which 
did several seasons on 1 engine and very few who did 1 season on an 
engine. I never have...

But then I have neven been in dragracing nor raced 2200 HP-engines.


>>
>>  How
>> > accurate are the 2200 ponies?
>>
>> Pretty good estimate based on his times/terminal and weight.
>>
>>
>> > - how many minutes can he drive (fuelwise) at WOT?
>>
>> Long enough! Its a road car! If it normally does 300 to a tank and 
the 
>> thing
>> has 20 times the power then it should go 1/20th of the 300 miles. So 
15
>> miles?
>
> > It doesn't do 300 miles on full power, never has but OK : 15 miles it
> > is. At WOT the 15 miles are gone in 4 min 30... That if the fuel cell
is
> > standard which I doubt a lot.


> No since its a road car its probably bigger... It easily could be if it
was. 
> But I suspect there isnt anywhere you could go 250mph for four and a
half 
> mins anyway!

Where is the logic in it being bigger? Because it is a roadcar? It does 
a max of 1000 miles a year on the roads and I guess that allready 
overstated.

The tank in that car is sufficient for a 1/4 mile powerrun and getting 
back.  

>
>>
>> > - how do his tires cope on a longer run? (remember the Hamster)
>>
>> The hamsters car had ordinary treaded zr rated tyres. At least it did 
>> when
>> it was at santa pod... And they were not changed very often. Sammy 
>> millers
>> 450mph car had road car tyres too.
>
> Once again: there is a major difference between hitting topspeed a
> fraction of a second and then backing off compared to hitting topspeed
> and staying there.

> > Yes but you cant and wouldnt do 250 for long in a veyron either...
> > And thats only 250 not 300 400 or 450 is it?

When the dragster comes in, the owner checks transmission, tires, the 
lot. On hour of driving and 7 hours of checking / rebuilding etc.

The Veyron is parked after an hour driving, most likely before a 
expensif restaurant...

>
> The latter I know only from planes and there too engine life goes down
> in dramatic fa****on, fuel and oil consumption go just the opposite.
>
> Just to put it perspectif: 75% of the cost of the Veyron is justified
> because the car must remain safe at speeds above 200 mph.

> > Nobody ever mentioned safe or cost.


Where do you thing developement budgets go into? 

If the bloke with the dragster kills himself, it is too bad for him. If 
a Veyron flips over at 200 mph, then VW is sued. Most owners of a Veyron 
have the capabilities of sueing the kind like VW very succesfully.

Tom De Moor