Out of curiousity. I've heard that it takes more horse power than a factory vette has to reach over 200+mph. What would a factory LS3 put out as far as max MPH? Is there some kind of chart that shows horsepower vs. mph?

 

I think they advertise the coupe at 186 and the Z06 at 190something...The ZR1 is about 205 200mph is an elusive number not many cars can do

 

LS2 is 186
LS3 is 190
Z06 is 198

 

I think the LS3 M6 Coupe is advertised at 190, the A6 at 185. Both of those are 5 mph higher than the LS2 cars.

The GS has the LS3 engine but I've seen numbers like the LS2 cars or even slightly lower, because of the aerodynamic drag from wider fenders and tires.

Not that there is any practical use to those speeds...

I don't know about rolling resistance on the tires, but aerodynamic drag goes up as the square of the speed. In other words, going twice as fast takes four times as much power.

 

My LS3 has been Dynoed/Tuned and have Vararam CAI. I Dynoed at 400 rwhp. I wonder how much more it would take to get up to 200 mph

 

ZR1 is 205 (More is there according to the Corvette Engineers - 205 is all they could get on that track)

 

I suspect that if 5th gear was chosen such that peak power occured at peak velocity, then the Z06 would be at or above 200 (by the slimmest margins).

The LS2, LS3 and Z06 Vettes run out of TQ (falling HP curve) by the time they get to peak velocity. 6th gear is too tall for peak velocity work.

In any event, this (albeit) fine distinction only raises the peak velocity be a couple of MPH at most, but does give better access to near peak velocity numbers.

 

I'm curious now, Wonder where around Houston I can go to test my vette , Mitch Any relations to the Alsup's gas stations?

 

Good point.
It is the Force of aero drag the goes as the square of speed. work/energy is force times distance and power is work/energy per unit time, so power to overcome aero drag goes as the cube of speed.

 

I tried to find out top speed, but at this speed, you run out of roadway very, very quickly.

I know of a few unmodded Z06s that have broken the 200 MPH mark.

 

Good stuff...maybe a bit more technical than I want to ponder at the moment but I agree the 'air' resistance kills you approaching maximum speed. Fold-in your side mirrors and tape off most of the grill opening and you'll probably get a few more MPH.

 

Reminds me of my phyiscs class, which I cheated to pass with a C.

 

186 was a magic number that cars aimed for because it equals 300 kph, a nice round number.

 

Nowhere really good around here. I'm sure there are folks around who can tell you their favorite stretch of road for getting silly. You'd be wanting at least a five mile straight section of road, no up and down, no turns. And of course it would be wildly illegal (as in go straight to jail and several other things to follow) to do that on an actual PUBLIC ROAD, not to mention if you hit a critter at those speeds, not good. There are no real high speed tracks in Texas. Texas World Speedway has the biggest banks, I've been told, but they wouldn't let just anyone go out there and go bonsai.

I've had my Vert out on the Bonneville Salt Flats, it took five miles to hit top speed, at 185 (that was on the speedo, not GPS). And that was with a lot of altitude. At sea level that would have been more like 192 or so (the denser the air, the more power you make, the faster you go). The mirrors pop back out at 150. Bonneville's a 24 hour drive each way from Dallas.

A car with a lot more power would get to top end a lot faster and need less road, I'd imagine. You have 800 horse Vettes hitting 200 at the Texas Mile, and they likely don't have another 20 MPH to go beyond that.

There is no speed limit on federal land. Places like dry lake beds and salt flats. Extra benefits of those places includes they tend to be pristinely flat, you can see forever, no critters, no plants, and generally no people.

And if it goes bad out there, in the middle of nowhere, you are SO screwed . . .

If you just want to drive real fast legally, check out The Texas Mile, and the Big Bend Open Road Race. Fun stuff.

 

I'd like to do it "Legally" or atleast not fear of prison time. I wonder if going to an airport of sorts would work? I know they have a little stretch in Friendswood.

 

Road goes by quick, my C5 is standing mile certified at 190 MPH and in 5th gear at the traps at 6k and was about to hit the best of my blowers power at that speed. I have had this car well above 200 mph, just not at the standing mile, our stock C6 is fast until you hit 100 mph and on most roads that is fast

 

Converse isn't far from houston is it? where is a good place to go?

 

When the 1,000 HP Bugatti Veyron was tested at 238mph, they said it took 500 horsepower to make it go 200 and the other 500 took it from 200 to 238.....gives you an idea of how steep the curve is at higher speeds.

 

[QUOTE=Andrew6;1574176250, Mitch Any relations to the Alsup's gas stations?[/QUOTE]

Distant at best; they use 2 'll's in their name, I use only 1.

 

The original ZR-1's where always being challenged to hit the 180 MPH mark as our group's motto was "Life Begins at 180mph". The LT5's were high revving but difficult to break 180 in 6th. Many modified ones did and a search on the ZR-1 Registry should result in some little known facts and numbers. I had one of mine to 156 or so...but you need some space for that...