So the Hennessey venom gt goes 265mph

[Looneybomber]

http://www.nydailynews.com/autos/hennes ... -1.1307988

The production veyron goes 258.

Looks like the venom has an LS7?

[Kompresshun]

Bugatti claims the Veyron is limited to 258mph to keep it from shredding it's tires. Whether that is true or not, I'm sure they'll find a way to make it go faster soon enough. They don't seem to appreciate the Venom trying to steal their thunder.

I'm pretty sure the Venom has a 6.2 in it, so it's probably an LS9.

[Mr1der]

Says John Hennessey.

[MinisterofDOOM]

Hennessey website says it's 427 / 7 liter. And the LS9 is supercharged--though they may have chosen it for the lower compression ratio to TT, but if you're boring/stroking eight tenths of a liter, you're not going to end up with factory compression anyway.

LS3: Wet sump NA 6.2 liter, 10.something:1 compression
LS9: Dry sump s/c 6.2 liter, 9.something:1 compression
LS7: Dry sump NA 7.0 liter, 11.something:1 compression.

And there's the new LT1, which seems to be an updated LS3 but which GM claims to be "generation V" and all new. NA, 6.2 liter, 11.5:1 compression, direct injection (on OHV!) and it looks like buyers will get to choose between wet and dry sump for some applications.

[Kompresshun]

MoD - According to what i'm finding, it uses the LS9 bored/stroked to 7.0L and converted to Twin Turbo.

BTW, the LS7 is a 7.0L not a 6.2L.

[MinisterofDOOM]

Argh typo.

[Looneybomber]

MoD - According to what i'm finding, it uses the LS9 bored/stroked to 7.0L and converted to Twin Turbo.

Now here's what I want to know, what is the difference between the LS9 block and LS7 block that makes them choose the LS9 and make it have the same displacement as the LS7?

[Kompresshun]

The LS9 block is stronger and can handle more overall power.

[Looneybomber]

The LS9 block is stronger and can handle more overall power.

I can't find anywhere stating the LS7 and LS9 blocks are different. It looks like the LS7 uses sleeves due to the increased bore (to compensate for the thinner cyl walls), but if they use the LS3 block due to the thicker cyl walls and you bore them out, that defeats the purpose. They have the cast iron LSX block which is good for a butt load of hp (2000?), but it's also twice the weight of an aluminum LS block, so I doubt Hennessey uses it.

[Kompresshun]

As I said in my first post in the thread, Bugatti already got the title back. Guinness have them back the title after they pled their case that the drivetrain was capable of going the speed, even though it was limited. I'll post a link to the story later.

I'm curious to see how long it'll be before Hennessey tries to beat the record again. They better hurry, because there's already word of another Veyron coming that will be 1800hp and will reach 288+ mph.

[MinisterofDOOM]

Top speed stuff is kinda silly, but becomes pure stupid when we're talking about speeds that the car refuses to actually do. The Veyron is not a sports car. It's a rocketsled with nice leather. The Venom would EAT IT ALIVE on a track with any curves. And the F1 would destroy them both.
The only reason the Veyron NEEDS 1800 hp is that it weighs 4200 effing pounds.
I'm far more impressed by the Venom, or cars like the P1 and MP4-12C.

[float_6969]

I don't think it's a matter of refusing to do it though. Right now, and this has been the case for a while, has been the fact that no tire manufacturer makes a tire to fit the Veyron, that's rated at that speed. The actual speeds that the Veyron has reaches has been mostly limited to how big the balls the guy driving the car has and the fact that there is only one track in the world big enough to safely achieve the vehicles top speed.

You also have to keep in mind that once you get into really high speeds like this, the aerodynamics play a MUCH larger role in the top speed of the vehicle than the weight does. (not to say that it being a fat pig helps it in any way).

And you're COMPLETELY right about the handling. It doesn't handle that well. It's heavy. But, IMHO, it's still a badass car and I wouldn't sell it right away if I was given one. Ofcourse if I was given the choice between the Veyron and the MP4-12, I'd take the fax machine, LOL!

[Kompresshun]

The Veyron is a truly amazing car for what it is and i'm sure it's an experience to drive one. I don't give a crap if it handles like a**, because it definitely handles somewhat decent and that raw power has to be an amazing feeling.

That being said though, i'd take a Ferrari F12, Lamborghini Aventador, or McLaren MP4-12C any day of the week over a Veyron if I wanted to own something. I think i'd get far more joy out of one of those long term than I would a Veyron.

The Venom can eat a d!ck though. It's awesome, don't get me wrong, but it's also a frankenstein. It looks like it would be frightening to drive the thing and even though it sounds awesome, I wouldn't pay $1,000,000+ for that death trap.