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

"Doc" <docsavage20@[EMAIL PROTECTED]
> wrote in message 
news:1184115801.656619.66300@[EMAIL PROTECTED]
> On Jul 10, 7:40 pm, "Burgerman" <burger...@[EMAIL PROTECTED]
> wrote:
>
>> Well we dont know. The veyron according to conventional wisdom and an
>> aerodynamics calc wouldnt actually be able to catch the vauxhall 
>> anyway...
>
>
> An aerodynamics calc says a car purpose-built to go the better part of
> 300 mph has an aero *disadvantage* compared to a mass-produced
> passenger car from the '70's? He's got some mods on the Vaux body, but
> still.

A brick can go 500 miles per hour if you push it hard.


>
>
>> > That Veyron wouldn't have to hit anywhere near its top speed to beat
>> > that Vauxhall. At 180 the Vauxhall is sucking wind, the Veyron is
>> > accelerating hard.  While the Vauxhall can go around 190, how long
can
>> > it maintain it?
>>
>> Err who knows what it can "maintain" - it has the power to go faster
than
>> the veyron anyway. Just.
>
>
> It has the power and gearing to go a 1/4 mi about 2.5 secs faster - on
> a dragstrip on drag tires - ending up at just about its top speed if
> it's set up correctly as a drag car.

No drag car or bike goes through the lights at top speed. Some may run out

of gearing depending on setup but we dont know that do we. And in any case
a 
gearing change to go to its top possible speed on the power available is a

simple diff change.



> "What it can maintain" is certainly a crucial issue under the highway
> race scenario proposed. If you put taller gears in it to theoretically
> give it more top speed, as well as tires made for maintained speeds
> near or over 200mph it's going to lose a lot of that short-distance
> advantage.  And pu****ng that brick any faster would be inviting
> disaster.

It would lose some acc only in the first few yards where grip is the big 
issue off the line in low gear. But not a lot.

>
> Also, unless we see a verified dyno test of that Vauxhall's engine,
> we've got only his word for it that it makes 2000hp. People are known
> to embellish such claims. And where is that engine making its power?
> Aren't the powerband characteristics of the engine im****tant?

No. And the weight of the car and the quarter mile time as well as the top

speed over the quarter says hes about right with his claims.

>
>
>> > And how stable is it going to be at that speed
>>
>> > compared to the Veyron?
>>
>> Not very. Who said anything about stability?
>
>
> It's pretty obviously implied when talking about a highway race.
> There's probably as much $$ in just the high-tech suspension and
> hardware to keep that Veyron stuck to the road as that guy spent total
> on the Vauxhall dragster.

A soggy brick does not need to be unstable as such, and in some ways its 
easier to make a brick more aerodynamically stable than something
slippery.

>
> You say there's not enough distance to get to full speed - if it gets
> over 220 in 1.5 miles, doesn't seem he needs much distance to go
> plenty fast.  Aren't there straightaways longer than that in Europe?
> That Vaux normally only needs to maintain that top speed for a couple
> of seconds before shutting down. A whole different game than going
> down the highway.

No the vauxhall is still acc like a bastard at its quarter mile finish 
line... It has neve reached its top speed. But it would do so MUCH faster 
than the veyron.


> If that Veyron ever gets even with the Vauxhall at speeds like 120,
> 130, and I don't see any reason why he wouldn't, how do you figure
> he's not going to leave the Vaux in the dust when he's getting into
> his powerband and has at least another 120 mph in his back-pocket and
> isn't in danger of going airborn approaching and beyond 200?

Pretty easily! The vauxhall is accelerating harder than the veyron at ALL 
speeds.  If the top theoretical speeds were the same (and they calculate
out 
that the veyron is slower) then the one with bags of drag and bags of
power 
will ALWAYS accelerate harder at any speed. Simple physics. The Vauxhall
has 
a much superior power to weight ratio.




> With streetable tires, drag-race suspension, laughable aerodynamics,
> even with taller gears,  I just don't see that Vauxhall looking like
> such a hero in a "highway chase" scenario vs the Veyron.


Maybe you dont. Physics on the otherhand tends to disagree.


> Btw, how does your bike compare to a Yamaha R1? There's video on
> YouTube of an R1 getting repeatedly, seriously smoked by a Veyron.

About the same. I was talking about the Mclaren. And at lower speeds the 
bike leaves it.

>