Anyone going over 200 mph???

[Damn True]

Originally Posted by rocketman

You are going to need about 3-4 inch ride height,soft springs and shocks to force the car down at higher speeds.and a big sway bar.

Both of which are antithetical to stability and control on irregular surfaces at high speeds or where any change of direction might occur.

See how sticky this can be?

DIG THIS a link to the CLR going ass over tea-kettle on the mulsanne straight. Keep in mind that the body there was designed by the finest minds Daimler-Benz employs. It still flipped due to a combination of a little turbulence and a relatively gentle bump in the road.....@ 200+

That was no 35 year old passenger car. It was, at the time one of the most advanced race cars on the planet.

Your ref to Pro-mod cars is silly. Have you ever seen one? They are anything but stock bodies. The rake of the hood provides in effect a GIANT air dam forcing the front end down. You ever see one lose a cylinder or two on one bank? When that happens the cars veer hard opposite the lost cylinder because the zoomies provide downforce to the front end. The sail panels on those bodies are pulled in to get more air onto the HUGE spoiler with vertical stabs.

The body on your car lacks all of those features.

Again refrencing the CLR read this: http://www.mulsannescorner.com/techarticle1.htm and ask yourself if the profile of your car is better or worse in terms of creating lift than a CLR?

[Matt@Lateral Dynamics]

As far as safety, It is just more of a daily driver type street car that I go to shows in, but I like to play around. That would really suck If I needed safety equipment.... I never thought of that!

In context, this quote is one of the more funny things I've read on the internet. Thanks for that.

I say go for it. What's the worst that could happen?
https://www.youtube.com/watch?v=7AejuZMbq4c

(Edit) True, I was searching for it as you were editing your post. It's the first thing that came to mind when I read the first post.

[ShawnF]

I was wanting to do the same thing a year or so ago. I have a 94" mustang cobra (Don't shoot me I also have a 55 PT belair I'm building) with a dart based sbf 356 cubic inch with all the goodies billet bottom end, afr heads, solid roller, jesel setup, Fast XFI, etc... and a 88mm turbocharger. This is in a car that has every suspension piece that maximum motorsports makes (killer mustang suspension). I had talked to a few guys that had run their cars at serious speeds and was definately educated on the facts of aero and downforce. Like you "Nitrorocket" I thought it would be no big deal to do 200mph (1000+ rwhp) and I had already gone 155 or so with a small turbo and stock motor. When I realized what it would take to do 200mph I was shocked. Just look at the newer cars that are 200mph capable or close and you'll be amazed at what they have. It takes finesse to get a car that fast and be able to be controlled. These cars all have some major things in common besides a slippery outside.. They all have ways to get air out from under the car and prevent most air from getting there in the first place. These cars have good downforce and not a lot of frontal area. I think you could get your chevelle to do it but go drive a new Z06 or even a srt10 viper and then study the car a little and you'll understand what I am saying. The horsepower is there the other larger part to the equation will take some serious work. Good luck

[nitrorocket]

Look, I am asking what people have done to do this as far as parts wise and or some little tricks. First, everyone was saying I do not have the power, I DO. Second, people think I am going to go airborne trying, I posted a link showing pages worth of 100 mph cars that have NOTHING done to the body to hit those speeds, just raw power. I am no idiot and if I thought this was so dam easy, I would hop in right now ant try to go 200, I put this post asking what tricks and or parts people are using. All most are saying is WOW, your gonna flip, that takes power, you need to do alot, It can't be done, turn the car into a space ship! This does not help me get to my goal.

And quit talking like I am wreckless. I want to hear from one person on this board who has not gone through the gears down an on ramp or on a nice freeway clearing at least once, either for fun, showing off, or tuning! Heck, people are talking about going 180 on a bike on the street!
I hit 150 mph and slow back down to 65 by the time I am done with the on ramp. The ramp I use is a little over half mile long, nothing to hit, nobody there that can get hurt. That sure is hell is safer then most crap I see on the internet going 150 mph through traffic and it takes them about a mile to do that, That is dangerous!

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I know it will take lots of experimenting and adjustments to hit 200 or close to that safely, and that is what I want to know.

I DO NOT WANT TO SEE ONE MORE REPLY SAYING I DO NOT HAVE ENOUGH POWER OR THAT I WILL BE FLIPPING!

So what do you think, most of you have seen pics of the car, should I lower it more? What are the best shocks/springs you have used? Should I keep the ass end higher then the front??? What do you think?

Anyone going to offer info or links to what I want to do with my car?

Thank you!

[clill]

Asking advise from a bunch of guys that have not gone 200 is probably not going to be very productive. I would consult Kurt at Wheel 2 Wheel.

[nitrorocket]

I though this would be the board. With all the cars on here lowered to the ground, every aftermarket piece in the world, top of the line wheels and tires, even some with wings and spoilers, I figured more people would be going 150-200 mph on here with there cars???

[MarkM66]

Hell, if you want to try it, try it. I'd like to hear the results.

Be aware of your Critical Driveshaft Speed before you put an overdrive in that thing.

Probably why most high speed cars use 1:1 with high ratio rear end gears instead of 4:11's with a .50 overdrive.

[nitrorocket]

Good point, I will have to check That out?? Maybe I would be better off with a gearvendors UNDERDRIVE with the 1' shorter driveshaft it requires. This would allow me to put a 2.73 gear in the car but still accelerate normal while having the optin the put it back to 1:1. I was hoping the 4l80 would be the ticket though. I will have to Contact Dennys to see what the MMC driveshaft is rated for on critical speed! If I remember it is 7,xxx something??

[Steve Chryssos]

Originally Posted by MSchu

This is one of the funnier threads in awhile. Go read about the Hot Rod Camaro or Thacker and Shine's roadster trying to break 200 @ Bonneville. Those are two of the more documented accounts of trying to break 200 I can remember. Hell go to B'ville and watch for yourself. If it were as simple as horsepower+stomp the go-pedal=200 mph, then everyone would have one of those coveted red hats.

That's true. I was there the first year. We tried everything--including draining a little oil out of the pan to find speed. Never mind 150 to 200, there's a huge money and effort gap between 180 and 200.

[camcojb]

Originally Posted by nitrorocket

Look, I am asking what people have done to do this as far as parts wise and or some little tricks. First, everyone was saying I do not have the power, I DO. Second, people think I am going to go airborne trying, I posted a link showing pages worth of 100 mph cars that have NOTHING done to the body to hit those speeds, just raw power. I am no idiot and if I thought this was so dam easy, I would hop in right now ant try to go 200, I put this post asking what tricks and or parts people are using. All most are saying is WOW, your gonna flip, that takes power, you need to do alot, It can't be done, turn the car into a space ship! This does not help me get to my goal.

And quit talking like I am wreckless. I want to hear from one person on this board who has not gone through the gears down an on ramp or on a nice freeway clearing at least once, either for fun, showing off, or tuning! Heck, people are talking about going 180 on a bike on the street!
I hit 150 mph and slow back down to 65 by the time I am done with the on ramp. The ramp I use is a little over half mile long, nothing to hit, nobody there that can get hurt. That sure is hell is safer then most crap I see on the internet going 150 mph through traffic and it takes them about a mile to do that, That is dangerous!

------------------------------------
I know it will take lots of experimenting and adjustments to hit 200 or close to that safely, and that is what I want to know.

I DO NOT WANT TO SEE ONE MORE REPLY SAYING I DO NOT HAVE ENOUGH POWER OR THAT I WILL BE FLIPPING!

So what do you think, most of you have seen pics of the car, should I lower it more? What are the best shocks/springs you have used? Should I keep the ass end higher then the front??? What do you think?

You are dangerous, at least to yourself. You plan on doing this on the street. No safety equipment, never even considered it by your quote:

"As far as safety, It is just more of a daily driver type street car that I go to shows in, but I like to play around. That would really suck If I needed safety equipment.... I never thought of that! "

You have not given a single example of a car like yours that has done it without something that holds it on the ground. Every car you listed is either 2" off the ground up front, has a huge wedge built into the front/rear height, or is an all-out race car with air management built into it, but a stockish "looking" body.

You keep asking for shock and spring recommendations, and are totally ignoring everything else. What are you going to do with the grill area? That will create a ton of lift in the front end. You have no front spoiler, are you going to run the front sheetmetal a couple inches off the ground to compensate?

Do you have tires that can run 200 mph? As mentioned before, what driveshaft do you have and what is it's max rated rpm? And don't think because it's a trick 3-4" aluminum aftermarket unit it's fine. I'm amazed how low the max rated rpm is on those things, usually under 8000 rpms. Sounds fine until you put the car in overdive where .33 over means you can't exceed 6000 engine rpms, and that's only if yours is that high; most are less.

All these things and more have been pointed out, but you don't want to hear them; you want shock and spring recommendations, and then off you go.

My advice is to get ahold of the guys who run Bonneville, and talk to the guys running 200 mph in stock bodied cars. Find out what mods they needed to keep the car planted. It will obviously surprise you as you think your car can do it right now (your quote). If you can get past all the safety things they've installed which you won't run, there should be a lot of good info as far as what they did to compensate for the lift up front, air under the car lifting the rear, etc. These are the "been there, done that" guys and who you need to speak with.

Good luck. I'd say take it to the track but you aren't gonna go for that one; after all, you aren't dangerous!

Jody