Highest recorded top speed of 3/S? Has anyone ever broke 200mph...

[Blackmount]

Still call BS.

its not being a hard ass, its videography, and documentation.

[AdamVR4]

I would like to say my SL has been topped at 150mph, (corrected 142mph) at the time it was only a little over 200hp..

I can't imagine it would take more then 500+whp to brake the 200mph barrier in our cars.

I am in disbelief about DR's speed claims simply because there is no proof no videos or anything....any one doing such a high speed claim in a 3/s would think to record it....

I would really like to see someone document a 200mph speed test....

And I was just thinking about removing you from my ignore list...

[Blackmount]

If you guys want to continue having a community that's made up of bullshit and no one ever proves anything sure go for it

oh by the way I just ran a 7.8 in the 1/4 mile.

you guys r ridiculous sometimes.

Lets get serious, 216 mph in a 3/s doubtful. Our cars arn't built for that kind of speed, I feel it would need major modifcations to the body to ever do so and not blow to pieces or act like its going to fall apart and be completely unstable.

Like I said, I'll believe it when I see it... he doesn't have to show hes doing it on a public road, he can just show speedometer. Like my video, he could be on a private runway for all we know. if he doesn't want to show a video, their r plenty of otherways of recording speed.

I apologize I don't nut hug his every post, and think everything he says is pure gold.

[J. Fast]

Damn, I had a long winded post and it got ate.... laaaaaame!

Long story short, the frontal area calculations on the wiki are incorrect.

I calculated them today with real measurements on real cars and determined the following dx/dy 's

1G Stealth 22.417sf
My car 23.597sf
3G 3000gt 22.924sf

These are actual calculations and should be updated into wiki.

I have discrepancies in my previous posted data. I neglected to account for a number of additional drag coefficients. These should be added to the stock 0.39 Cd.

My wing 0.01
Missing under tray 0.01
Novara Bumper SMIC cutouts 0.01
OWindows removed 0.02
Wider tires 0.003

My actual Cd at time of testing was likely around 0.443. Not accounting for those was an oversight on my part.

Polygon, with your drop change your Cd to 0.375. For every 1" of drop our CD is reduced by -0.01

When you re enter all the data with the corrections it works out.

I appreciate the feedback on my setup everyone! I'll be bolting on the good s*** real soon and will have significantly different results!

[mehrshadvr4]

you could still pass 180 with 720whp. first gen viper has shitty aerodynamic and it's something like .45dc and it could do 180 with only 450bhp. supra has good dc like .32 with wing. damn our car is like a parachute compare to other japanese sport cars.

[jake stealth]

Automobile drag coefficient - Wikipedia, the free encyclopedia

Here is a table regarding the aero for many cars. Examination of these makes me think our platform might be significantly better than Cd-0.44 but then again, looks can be mis-leading. Also check the CdA at the bottom of the article.

mehrshadvr4 is dead on regarding the early Vipers - they look good but in reality are quite dirty in the drag area.

I’m in agreement with the guys calling bullshit - show me your time slips or at least a GPS video. A speedo video alone is not enough for me - there is a video on youtube showing a speedo at some ridiculously high speed but by listening to the sound of the engine/car it seems to be on jack stands. Also agree with others regarding what it takes to get to 200 mph – some weird things begin to happen at speeds well below that threshold. It’s not easy folks – merely ask anyone who’s been successful in so doing.

Jfast - I like your dedication and enthusiasm as well as your organized approach for data acquisition and problem solving.

Just a thought but we might want to spend some time on Google looking at Cd definitions and The Bonneville Salt Flats too.

[DuTTch]

If everything is ready, I plan on hitting the Texas Mile in March.

Going to past events there and seeing which cars are in the 190-200 bracket makes me feel that I can achieve my goal of 200mph in the mile.

Hope u signed up because the event sign up list is filled up!

[FeaRpb]

Yeah, I read that yesterday. It will more than likely the June event. If not, then Oct.

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[DG]

Examination of these makes me think our platform might be significantly better than Cd-0.44 but then again, looks can be mis-leading.

Aero in the macro is very easy and straightforward but in the micro it can be verrrry weird.

There's a reason why F1 teams spend so much money on CFD and then go back up the simulations in a physical tunnel.

Top speed is rarely a power vs drag issue. Sure, you must have enough power to overcome drag, but aero lift, handling balance, and suspension reaction play increasingly important roles, especially on real roads. There's a reason why the land speed guys play on salt flats.

DG

[J. Fast]

Top speed is rarely a power vs drag issue. Sure, you must have enough power to overcome drag, but aero lift, handling balance, and suspension reaction play increasingly important roles, especially on real roads...

DG

Indeed. What I've concluded is the answer to their significance is substantiated by effective modeling. My approach to this process involves individual component disassmebly, and combined modeling. Take it apart and measure each puzzle piece, put all the puzzle pieces back together, and test your puzzle.

I cannot express in words the countless hours I've spent (because of the inquisitiveness of my mind) taking the these damn cars apart. Every nut, bolt, panel, piece, everything... Some might think its ridiculious to disassemble every mechanical component on our cars by hand and measure, mark, model, research, and collaborate with professionals whom have a very specific expertise on chassi, aero, handling, engines, and suspension setup, but I don't. What I've learned above all, experts can only give you answers with real data. You must be able to answer their qualifying questions in order to get legitimate feedback. Part of the research and collaboration process involves taking it all apart, scrutinizing, evaluating function, engineering intent, as well as cause and effect. The more data you collect, the tighter your resolution gets.

It was actually you who pointed out to me on 3stech many years ago where and how to find my answers in the beginning... They were in a book. That book became a center focus point for all things built to go fast... And WIN.

For that I'd like to tip my hat to you sir. You pointed me in a direction. From there I found my own way.

I sometimes laugh quietly to myself about the most ridiculous things that I've likely collaborated and collected data on (which gave me results) that I choose not to share... and wonder why so many have it all wrong. They identify a problem and come up with solutions and opinions with no data or modeled puzzle pieces.

Btw, I about spit pop out of my nose when I read in 2001 someone went to 216 miles per hour. I don't think anyone had more than 500 horsepower back then. 216mph... b******* lol!