viper vs veyron

[youngvr4]

the sledghammer didnt have years and years of aero work, just a c4 vette with 880hp that ran 254mph

though the veryon is more stable, thats not the comparison, its wich you think is faster from 60 to 230mph

both the same amount of power,

veryon is more areo
viper is 732lbs lighter

[FlippiN.af]

Originally Posted by youngvr4

the sledghammer didnt have years and years of aero work, just a c4 vette with 880hp that ran 254mph

though the veryon is more stable, thats not the comparison, its wich you think is faster from 60 to 230mph

both the same amount of power,

veryon is more areo
viper is 732lbs lighter

I still say the Buggati Veyron.

[deadbolt_35]

well, in that case. i would still go with the veyron. obviously i'm just guessing, but i think that when you start talking about 200mph and over, aerodynamics starting playing a much larger role than weight. even a small aero advantage would more than make up for the weight difference at those speeds.

[drunken monkey]

wind resistance goes up exponentially and i recall correctly (from having worked with wind generators), it goes up to the power of 3 (although it might just be to the power 2..) at each "step" so yes, at high speeds, even the slightest numerical advantage in this area, produces massive advatanges in results.

[deadbolt_35]

Originally Posted by drunken monkey

wind resistance goes up exponentially and i recall correctly (from having worked with wind generators), it goes up to the power of 3 (although it might just be to the power 2..) at each "step" so yes, at high speeds, even the slightest numerical advantage in this area, produces massive advatanges in results.

i rest my case

[drunken monkey]

but don't quote me on that....
i have a vague memory of the basic equation and it was exponential.
i'd have to go and dig up my papers to be sure but bear in mind that it was a wind generator and not cars.
the principles and mechanics aren't going to be directly applicable but the general gist should
i.e it makes a great difference.
it's why a CD of 0.31 and 0.33 makes such a difference even though the numerical difference in just 0.2

[deadbolt_35]

the exact mathematical equations aren't what's important. it's just the basic idea that matters. of the two things that we're comparing for high speed acceleration, weight vs. aerodynamics, aerodynamics plays a significantly bigger role.

[youngvr4]

i agree, lets say the viper will start having problems at 205mph. lets not forget that the viper has over 700lbs less wieght to get a(possibly) good lead on the veryon from 60 to 205mph
thats a huge weight difference HUGE!!! now from 205 to 230, that would be in the veryons favor but from 60 to 205, thats alot of time to get a certain lead to even things out at the top

[youngvr4]

well all those years and years of aero work and all they can come up with is 0.35 cd??

hell my vr4 has a drag co of 0.33 cd

but as stated above, the veryon, while not the best it still has a better drag then the viper wich has a drag co of 0.39 cd

[drunken monkey]

then again, that wind resistance doesn't just suddenly kick in at x mph, it's always present.
just found a reference to another speed timing figure for the veyron:
0-250mph in 55 secs.
0-188 in 16.7

anyone know how this compares to the viper?

[Altimas]

Veyron: aero is more important that weight as has been said.
A veyron costs 9 mil to make...
So it's no surprise.
However on a track the story might be different

[thephig]

I know it isn't between a McLaren F1 and a Veyron but I think this settles it...

"In a drag race [between a Veyron and a McLaren F1] you could let the McLaren get to 120mph before setting off in the Veyron. And you [the Veyron] would still get to 200mph first." ~Jeremy Clarkson

[youngvr4]

whos to say a car with just as much hp and 730lbs less wight couldnt do the same??

[Muscletang]

Originally Posted by youngvr4

whos to say a car with just as much hp and 730lbs less wight couldnt do the same??

Would a GT Mustang be able to do all of this if it had 1000 hp? No. It wasn't designed for this.

The Viper was not made to try to set the world speed challenge.

[Altimas]

Originally Posted by thephig

I know it isn't between a McLaren F1 and a Veyron but I think this settles it...

"In a drag race [between a Veyron and a McLaren F1] you could let the McLaren get to 120mph before setting off in the Veyron. And you [the Veyron] would still get to 200mph first." ~Jeremy Clarkson

A Mclaren F1 has 627 HP that viper has 1000hp...
A viper has shit aerodynamics but is an 9 second car where as the M F1 runs a mid 11.