i think 200 is pushing it.... too dangerous.... i wouldnt try unless u r a ALMS race team.....

i did 175-176 mph and i had these mods with 342 rear end 368RWHP

04 z shkcs/sprrings, T1 sways, ACS bolt on front lip spolier 18x11 18x12 CCW classics 335 rear 305 front ZR rated tires with WINDOWS DOWN.....

the car felt stable but i would do it again..... i have a wife and 2 kids.... and dont recommend it to any1... 1 mistake and ur gone!!!!!

 

Thanks black z/06 never had a car capable of top end like my z/06 so I'm learning what makes them stick.One more thing maybe you could comment on . many posts indictate they do their top end charge W/windows down.I would think windows up would be more streamlined don't land speed cars go windows up

 

I'm not sure why they are doing high speed runs with the windows down .... generally most cars are more aerodynamic with the windows closed than open.

On the other side of the coin, at most race tracks, if you are driving a street vehicle you are required to drive with the windows open. This allows safety crews to more quickly get to the driver in a wreck, and minimizes the amount of broken glass that might injure the driver or safety crew as the glass will mostly be contained inside the door.

If you look along the outside top of the door frame on your car you will see a plastic "tab" about in the middle of the door frame. It is supposed to help keep the door window glass against the weather seal in high speed runs. The door windows will have a tendancy to want to blow "out" from the door frame because the HVAC system does not seal the interior of the car even when it is set to OFF. Even in the OFF position a significant amount of air will be driven through the HVAC system into the cabin at high speeds, and while there is a "bleed" vent in the trunk area it doesn't seem to bleed the air fast enough to prevent a noticeable rise in cabin air pressure which pushes the windows outwards.

 

Here's what can happen at 200 mph when air gets under the nose of the car .... and these are race cars designed to run at these speeds .....

http://www.youtube.com/watch?v=0Xvai7iuubA&NR=1

http://www.youtube.com/watch?v=VIYwYvDluOY

And for those that think that running on an "empty" freeway is safe ... consider wildlife and what it can do to you ... an armadillo or a deer are not a joke at these kinds of speeds .....

http://sports.espn.go.com/rpm/news/s...d=5&id=2539326

 

Thanks for the reality check

I admit, I bought my C5 more for the show than the go

 

Race tracks are the same way. Been on tracks doing 130-150 and have had deer run across 30-40 yards in front ( always watch for more) , wild turkeys, turtles and black snakes sunning themselves.

Cows break down fences for a closer view of the track.

A few years ago I hit the inside gater on T5 or Road Atlanta doing about 120-125, spone around and hit or bounced / slidewaise off the concrete wall going backwards about 100 or so.
200 mph is a pipe dream Go for 150 first with safety gear. Most ppl puke the first time they go 150 or just plain freak out and dont know what to do? or how to slow the car down safety.

Much more to going fast then mashing the GO peddle

 

Think you're safe at he track, last year at E-town N.J. racing @ vette challenge ,running a slower car, approaching finish line, watching my opponent trying to judge finish line and his position , when a seagull decides to touch down in my lane just past finish line, lucky for me it was a touch and go. Coulda been a problem, I trapped 118mph that run. A 5 to 10 lb. bird would have ruined my day.

 

Aint too much wildlife on L.A. roads, ,,, but I know what you mean. Its still unlikely. BTW, those LeMans type cars are so wide and flat that they capture huge amounts of air under the body so it acts like a big wing. Thats not the problem with most street cars. The C5 builds up under the hood pressure, your hood would blow off before your car would take flight.

 

I plan to try this run to 200mph as well, just had a few questions. I have the ACI chin spoiler, should I run with or without it considering the stock rubber airdam has been removed. Also I will be running on 20s front and 21s rear or should I run the stocks? I am slammed stock bolts removed front and longer rear bolts, car is 02 with 420rwhp and 100shot wet

 

Lingenfelter has run both C5 and C6's up to 200 + miles an hour with minimal aero changes.

The C6 that did over 230 did so on Michelin PS2's 19's and 20's.

I don't think you'll have any problems as you'll be the only car on the track, whereas most of the accidents happened in traffic where it looks like the car lost it's front downforce by getting to close to the car in front of it.

 

I hit 165 on almost a daily basis on the way into work. (Autobahn) With a stock Z06, I am at 6300 rpm in 5th. If I shift to 6th, the speed drops to about 155 and about 4500 rpm. It can't pull from there. I do note that the hood noticeably lifts from the fenders about a half of an inch from about 150 mph on. I added a ACI rear spoiler since the rear of the car has a tendency to hop to the left if the road gets rough. The spoiler seems to have corrected that problem. At 165, the ZO6 roars. By comparison, I test drove a 08 M3 last week. It pulled right up to 165 and was still quiet enough to hold a conversation. (Though I don’t do much talking at that speed!) Of course, the M3 is not nearly as cool as my Z.

 

I will see you guys at Silverstate. In the meantime - you wanna testout our runway track in lovelock. I will be there thursday - and will be running a few cars and bikes on the runway - looking at traction, and stopping distances.

While you are there - I can take you out and show you the open road course wwe have setup - 2 days - stage race - winners for each day - as well as cumulative!
www.pershingcountyspeedweek.com

For the wanna bes talking about 200 mph. First be realistic, 200 mph is no lark or whim, it is taking your life into you own hands. Tires are a huge issue, as is - safety equipment. If you wanna go 200 - I would tell you to start next week - (17th - 20th)at Bonneville, at World of Speed. You could run 150 club class with only a fire extinguisher, and other nominal safety equipment. I'll let you borrow my firesuits and helmet to save you some money! You wanna go faster - now you are looking at full cages, fire supression systems etc.

corvette front ends do not get light - not C-3s, not C-4's not C-5's nor C-6's. its an old story retold as fact by someone trying to lie about how fast they went! The fact is - as the car gets faster - it gets stabler - at least on a smooth flat surface, If you don't believe me - come out and actually try it, and get a timing slip to actually prove how fast you went.

Texas Mile Maxton, soon to be Loring for you Noreasterners, any of the Open road races (Nebraska, Texas, Nevada) Bonneville, El Mirage in California. There is a venue that will allow top speed runs within a days drive of almost anyplace in the country, so the opportunity is there for you to go fast legally and as safely as possible!

Carl Johansson
Pershing County Speedweek

 

Thanks for the info. Once of these days when I have some time and get my car together, I will give it a shot, legally.

Doing 200 mph + on the highways with traffic etc.. is just plain crazy.

I wish I lived in Germany so that I could do one run down the autobahn at full bore.

I did get one ride on the autobahn some years back in TT 930 Porsche. We hit 225 mph for a split second, before he backed off. It was heck of a thrill and i'll never forget it.

 

You are living the dream my friend. There are many of us who would sacrifice quite a bit to have that luxury. Enjoy it for the rest of us. And post some videos if you can, so we can pretend we're the ones driving our C5's on the autobahn.

I'd much rather drive my car at 120+ mph for duration than 1/4 mile acceleration racing. Thats just me. I love the fact that 90 mph is only 2,000 rpms in 6th in my 02 MN6 coupe. Love it.

-Steve

 

I don't have a garage. So any aftermarket hood has to be able to keep the weather out. How much rain/snow/sleet/leaves/womans underwear with phone numbers written in lipstick/dirt gets into the engine area with a VIS Extractor hood? I like the way it looks and how it works but I think I'm stuck with the OEM style VIS carbon fiber hood.

-Steve

 

I did 171 last summer in South Dakota and it was still pulling hard. I have 431 rwhp and I think given enough room 185 would be all she'd do. Once the turbos are in 200+ should be no problem. Actually doing it is a whole other issue though.

Justin