Korza
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- Christchurch, NZ
- kamikazi493
Read my earlier post.Erm...what did that have to do with the topic?![]()
Read my earlier post.Erm...what did that have to do with the topic?![]()
The xj220 has less than 550hp (50hp more than half the veyron's power)and yet it's still capable of 210's up to maybe 220... That speed is normally only seen in 600+hp machines. There's your proof that power doesn't really mean as much as you say... The McLaren also has a relatively small amount of power (barely more than a corvette ZR1, who's top speed is only less than 210, maybe 205)
The xj220 has less than 550hp (50hp more than half the veyron's power)and yet it's still capable of 210's up to maybe 220... That speed is normally only seen in 600+hp machines. There's your proof that power doesn't really mean as much as you say... The McLaren also has a relatively small amount of power (barely more than a corvette ZR1, who's top speed is only less than 210, maybe 205)
That's far from proof and I'm not the one that says power is as important as it is, you can point the blame at physics. What you oh-so-miserably failed to factor into your "proof" are the obvious differences in weight and drag coefficient of the cars mentioned. Give the Veyron the same power figures as the XJ220 without changing the shape or weight and see how fast it goes. I'll even let you make it RWD, even though the additional drive to the front wheels generates copious amounts of parasitic drag; and I'll let you do this because that's how confident I am of how much slower the car will end up traveling. At the same time, give the XJ220 the same power figures as the Veyron, also without changing the weight and shape, and adjust the gear ratios to make use of this new power and it'll travel substantially faster (until heat from friction and the rotational forces conspire to throw the tires from their respective wheels).
@Camaroyenko: I asked what it was, so it may not have anything to do with the topic but he was so kind as to answer me. What was your contribution?
Why does the Veyron get such a bad rap? It's understandable in drag racing because of it's insane speeds and maybe even during racing online, but I was in a room just cruising around in a stock Veyron, just testing it out since I fully tuned my other one, and the host began yelling at me and called me the "Dumb *** in a Gayron" and kicked me. I mean I wasn't even doing anything. So why is the Veyron so antagonized?
DDAAVVIIDD82That's far from proof and I'm not the one that says power is as important as it is, you can point the blame at physics. What you oh-so-miserably failed to factor into your "proof" are the obvious differences in weight and drag coefficient of the cars mentioned. Give the Veyron the same power figures as the XJ220 without changing the shape or weight and see how fast it goes. I'll even let you make it RWD, even though the additional drive to the front wheels generates copious amounts of parasitic drag; and I'll let you do this because that's how confident I am of how much slower the car will end up traveling. At the same time, give the XJ220 the same power figures as the Veyron, also without changing the weight and shape, and adjust the gear ratios to make use of this new power and it'll travel substantially faster (until heat from friction and the rotational forces conspire to throw the tires from their respective wheels).
@Camaroyenko: I asked what it was, so it may not have anything to do with the topic but he was so kind as to answer me. What was your contribution?
My point is that good aerodynamics can easily reduce need for power... Aerodynamically, the xj220 is way slicker than the veyron, so it doesn't need as much horsepower as the veyron to go fast. If you were to make the veyron in the shape of an xj220, you may be seeing speeds of 265-270 or more from a stock veyron's power (I'm taking into account the increased drag from higher speed)
+1
-The Veyron looks like an upside down bathtub
-The Veyron handles like a wet boulder
-The Veyron has a W16. Overpowered
I can live with the rest of this, but what throws me over the edge is that its made by Volkswagen. Not a small, private supercar company, but a company who has any resource in the world at the tip of their fingers, plus the best engineers, materials, facilites, etc that money can buy. There is no beauty or majesty to go with this car like you would get from a Mclaren F1 or Ferrari (yes, I know Ferrari is owned by a larger company but they have a rich history and heritage.
FamineYou can work it out.
The XJ220 has 542hp. 1006hp represents an increase of 85.6%. The cube root of 1.856 is 1.229, representing an increase in speed of 22.9%. 217mph multiplied by 1.229 is 266mph.
Just to give some mathematical proof to your post...
Power (at wheels) required to reach given speed:
([Weight (in lb) x 0.0135] + [Speed (in mph) x Speed (in mph) x CdA* x 0.00256]) x Speed (in mph)
375
For the McLaren F1 this is:
([2500lb x 0.0135] + [240mph x 240mph x 5.61 x 0.00256]) x 240mph
375
= (33.75 + 827.23) x 240/375
= 551hp
This is about 13% lower than the crank figure of 627hp, which is within normal range for drivetrain losses.
Gordon Murray believed that the McLaren F1 could reach the Veyron's top speed of 253mph with just 740hp. Now, as it happens, it's really easy to go from a known power required for a known speed to another:
Percentage increase in speed ^ 3 = Required percentage increase in power.
253/240mph = 5.4% increase in speed
1.054 ^ 3 = 1.171 = 17.1% increase in power
627hp x 1.171 = 734hp
We'll call that close enough!
Incidentally, for the Veyron,
([4160lb x 0.0135] + [253mph x 253mph x 8.02 x 0.00256]) x 253mph
375
= (56.16 + 1314.18) x 253/375
= 924hp
This is only about 8% lower than the crank figure of 1006hp (1001PS was just a publicity figure - it's really beyond that), which is well outside the normal range for drivetrain losses on a 4WD car, however the Veyron has a specific top speed mode which reduces the ride height and trims the wing - both of which reduce the CdA. I just quickly calculated what running the car 2 inches lower and exposing less of the wing would do and I came back with a figure of 841hp - 20% lower than the crank figure of 1006hp and within normal range for a 4WD car. Possibly a bit high for an over-engineered one, but that was a quick guess figure.
If the Veyron ran the same power as the McLaren F1 - 627hp crank and 551hp wheel - it'd only be able to run to:
1006/627 = 1.604 = 60.4% reduction in power
Cube root of 1.604 = 1.171 = 17.1% reduction in speed
253mph / 1.171 = 216mph
*Or multiply the coefficient of drag by the frontal area in square feet.
Yet it weights almost two tons. What a failure. Everyone can make a car go that fast, by putting a ridicules amount of power into it. Nothing special in going that fast, when you put an obscene amount of power into it. And there's nothing innovative about it's design.
Such an unwise comment. It's very hard to make the car go fast, because of wind resistance. That's why it need a lot of power. And making tires that can last at that speeds, good aerodynamics, great build quality, so the car doesn't come apart at high speeds, calculate fuel and air intake and many more. All that with a ton of luxury, such as radio, full air conditioning and heated seats. If you put 1000hp in a Golf, it would fly and disintegrate when it reaches high speed.
DLRHow can you say the Veyron is not an aerodynamic car? lol LOOK AT IT. There are no sharp or abrupt corners. Advanced computer systems open and close flaps as well as control the ride height to maintain maximum stability.
You can put 10,000 hp in a car, but without the right chassis, its rubbish.
Yes, the same computers that fly F-16s and F-22s. That's why it's a massive technical achievement!
Now don't get me wrong, I am not a Veyron lover. I would choose a McLaren F1 over it any day. But when people refuse to see what a magnificent car it is, it gets me all roweled up![]()
Such an unwise comment. It's very hard to make the car go fast, because of wind resistance. That's why it need a lot of power. And making tires that can last at that speeds, good aerodynamics, great build quality, so the car doesn't come apart at high speeds, calculate fuel and air intake and many more. All that with a ton of luxury, such as radio, full air conditioning and heated seats. If you put 1000hp in a Golf, it would fly and disintegrate when it reaches high speed.