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Old 22nd October 2020, 21:20   #16
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re: SSC Tuatara clocks average top speed of 455 kmph; breaks speed record for production cars

This record is like on the face for Bugatti. A not so popular company with no prior speed records suddenly appearing on top of the speed record is not an easy feat.

Quote:
Originally Posted by SnS_12 View Post
Just wondering what tyre the car was running as the Veyron needed special tyres to do 250 mph and Bugatti would charge you $ 100,000 for a set of four as the tyres were glued to the rim and if you could find a authorised Bugatti dealer to glue the tyres then still it would cost $ 35,000 for the tyres
That's the best part. They did the speed run on Michelin Pilot Sport Cup 2 tyres. More than the record, this is like an insult for Bugatti. They have been spending so much money on research for tyres and here SSC has done the speed record on street tyres. Wondering how the Bugatti team would be reacting to this.
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Old 22nd October 2020, 21:56   #17
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re: SSC Tuatara clocks average top speed of 455 kmph; breaks speed record for production cars

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Originally Posted by logicalidiot View Post
This record is like on the face for Bugatti. A not so popular company with no prior speed records suddenly appearing on top of the speed record is not an easy feat.


That's the best part. They did the speed run on Michelin Pilot Sport Cup 2 tyres. More than the record, this is like an insult for Bugatti. They have been spending so much money on research for tyres and here SSC has done the speed record on street tyres. Wondering how the Bugatti team would be reacting to this.
Bugatti mentioned after their last record run that they are retiring from the race for numerical records. So, it seems like SSC record won’t be challenged anytime soon.

With regards to the tyres the thing could be that this test was done on almost a dead straight road with no banking at all. Also, Chiron Pur Sport ran on custom Michelin Pilot Sport Cup 2 R tires over innovatively designed magnesium wheels. So, all you know could have been the same tyre unless they are exclusively made for Bugatti

Just a few weeks before James raced his Veyron with the Tuatara and the way that thing upshifts and kicks out a ball of dust on every upshift is just Brutal!

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Old 23rd October 2020, 10:08   #18
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re: SSC Tuatara clocks average top speed of 455 kmph; breaks speed record for production cars

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Originally Posted by logicalidiot View Post
This record is like on the face for Bugatti. A not so popular company with no prior speed records suddenly appearing on top of the speed record is not an easy feat.
SSC did hold the speed record with the SSC Ultimate Aero but even then it's a really big deal.
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Old 27th October 2020, 08:24   #19
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re: SSC Tuatara clocks average top speed of 455 kmph; breaks speed record for production cars

Well the Americans have a lot of answering to do.

Tim posted a detailed video a few hours back explaining why the record run doesn’t seem genuine and the car actually achieved around 280’s mph and not 331 mph as claimed by team SSC.

Their claim actually doesn’t add up because of simple mathematics as its faster than the average speed it could have achieved based on the data which is out there as per Tim. Also, as this is the same stretch of road where the Agera RS did its record run it’s difficult to understand how the Agera RS crosses a stretch of road between two medians much before while its going significantly slower than the Tuatara

If you have 21:15 mins of your time to spare than I would suggest you watch the entire video below where Tim has given a detailed explanation on his analysis of the run

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Old 27th October 2020, 10:56   #20
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re: SSC Tuatara clocks average top speed of 455 kmph; breaks speed record for production cars

So the SSC Tuatara top speed record has brought out speculations showing it to be a big scam. A video posted of the same attempt between the SSC Tuatara and the Koenigsegg Agera RS both side by side shows an entirely different story in which the Tuatara despite travelling faster than the Agera on the speedo, crosses landmarks later than the Agera.

To top it off, just got the news that the Instagram page of SSC has disabled their comments and also blocked certain Koenigsegg fan-based pages that are questioning them on this. Now hope SSC comes out clear with an official statement explaining what went wrong to debunk this theory, else they'll have their brand name tarnished to infinity.
I am posting the video below for everyone to see and decide for yourself. Also, posted below is a screenshot of some mathematic/physics calculations done which show that the numbers given by SSC simply don't add up.

Attached Thumbnails
SSC Tuatara clocks average top speed of 455 kmph; breaks speed record for production cars-img20201027wa0010.jpg  


Last edited by Starfire : 27th October 2020 at 11:06.
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Old 27th October 2020, 11:14   #21
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re: SSC Tuatara clocks average top speed of 455 kmph; breaks speed record for production cars

SSC could be looking at potential lawsuits from Koenigsegg and Bugatti for lying if they can’t back up their claim as even Guinness World Records have said that they haven’t officially confirmed the timing as they had no representative present for the event.

Wonder what explanation Top Gear would have to defend the top speed claim?
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Old 27th October 2020, 23:59   #22
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re: SSC Tuatara clocks average top speed of 455 kmph; breaks speed record for production cars

It is fake as hell. And like how!

Misha and Robert lays it out with all the data and calculations used. And it is not an error of margin which one can gloss over as erroneous GPS, speedo or gradient.

Robert calculate's the top speed of just 247 mph or 398 kmph.


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Old 28th October 2020, 15:06   #23
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re: SSC Tuatara clocks average top speed of 455 kmph; breaks speed record for production cars



Really hope SSC comes out with a better explanation than the Dwetron validation to answer all the questions that are being raised. Don't want all of this to be a lie.
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Old 28th October 2020, 15:18   #24
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re: SSC Tuatara clocks average top speed of 455 kmph; breaks speed record for production cars



The official press release from SSC simply says Dewetron validated the run. With all the conspiracies and doubts surrounding the top speed run, this press release just adds more doubt even though Dewetron is pretty reliable and wouldn't risk their reputation for this (hopefully).
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Old 28th October 2020, 16:46   #25
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re: SSC Tuatara clocks average top speed of 455 kmph; breaks speed record for production cars

Having seen the video of the agera and the tuatara, there are definitely questions that need answering. However, post 250mph, the frame rate of the video does not allow one to see the poles on the median move, instead they seem fixed due to the frame rate. This single observation is leading me to believe that the SSC might just have gone faster than the Agera. At the end of the day it does also develop more power and has a larger rear area for downforce at high speeds. Would love to see SSC do another run to clear all the doubts around this.
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Old 29th October 2020, 01:23   #26
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re: SSC Tuatara clocks average top speed of 455 kmph; breaks speed record for production cars

So the CEO of Dewetron (GPS-firm mentioned by SSC) released a statement today saying that they have no role to play in validating the data:


Full Statement


Excerpt:

Quote:
Despite the information published on the website of SSC North Americaas well as on several related and non-related YouTube channels, DEWETRON did not validate any data from world record attempts or preceding tests. Nobody of DEWETRON’s employees was present during the test drive or involved in the associatedpreparations. Since the resultsof measurement data highly relyon the right setup, on the regularcalibration of the systems and sensorsin useas well as on many other parameters, we are not able to guarantee the accuracy or correctnessof the outcome. As of this moment, DEWETRON did not receive the measurement file of the test drive. As a result of the absence during thetest drive paired with the missing data, DEWETRON is not able to make any further statements about the world record attempt under question



Now SSC has released a statement saying that the admit the videos do not match the record attempt.


Full Statement:

Quote:
Jerod Shelby Explains World Record
On October 10, 2020, SSC North America realized a dream that was a decade in the making, when our Tuatara hypercar achieved an average top speed of 316.11 MPH.

In the days since, there has been a swirl of interest and speculation about how and whether the Tuatara had achieved that speed.

The good news: we did it, and the numbers are indeed on our side.

The bad news: only after the fact did we realize that the depiction of the speed run, in video form, had been substantially incorrect.

The following is a long explanation of what and how this happened, to the extent we now know. I hope it will serve to build trust in the SSC team, and in the exceptional feat the Tuatara has earned.

*

The Video
Three years ago, SSC began working with Driven Studios, a video team to document what seemed like every waking moment of the Tuatara hypercar and those who’ve created it.

They’ve since interviewed virtually every team member and consultant, captured the car in build and throughout extensive testing, and have played a key role in not only capturing, but in producing the record run on October 10 in Pahrump, Nevada. They have become a trusted partner of the SSC family.

On the big day, October 10, there were video cameras everywhere — in the cockpit, on the ground, and even secured on a helicopter a low-flying T33 to capture the car at speed.

The morning of the run, the record was achieved, we were over the moon. We kept the news under embargo until October 19, with hopes of releasing a video to accompany the press release.

On October 19, the day the news broke, we thought there were two videos that had been released -- one from the cockpit, with data of the speed run overlaid, and another video of b-roll running footage. The cockpit video was shared with Top Gear, as well as on the SSC and Driven+ YouTube pages.

Somehow, there was a mixup on the editing side, and I regret to admit that the SSC team hadn’t double checked the accuracy of the video before it was released. We also hadn’t realized that not one, but two different cockpit videos existed, and were shared with the world.

Hypercar fans have quickly cried foul, and we hadn’t immediately responded, because we had not realized the inconsistencies -- that there were two videos, each with inaccurate information -- that had been shared. This was not our intention. Like me, the head of the production team had not initially realized these issues, and has brought on technical partners to identify the cause of the inconsistency.

At first glance, it appears that the videos released have differences in where the editors had overlaid the data logger (which displays speed), in relation to the car's location on the run. That variance in ‘sync points’ accounts for differing records of the run.

While we had never intended for the video captured to play the role of legitimizing the run, we are regretful that the videos shared were not an accurate representation of what happened on October 10.

Driven Studios does have extensive footage of everything that transpired and is working with SSC to release the actual footage in its simplest form. We’ll share that as soon as it’s available.

*

The Car
On the day of the speed run, SSC used Dewetron equipment to track the Tuatara, and verify its speed, as measured by an average of 15 satellites across the two runs. We chose Dewetron for the sophistication of its equipment, and using that has given us confidence in the accuracy of the car’s measured speed.

People have sought additional details, which hadn’t provided in earlier press materials, and those technical specifications are listed below:

Tuatara (Top Speed Model) Tech Specs
Ratios/Speed, using the 2.92 final-drive ratio

Gear Ratios/Top Speed (Gears 1-6 have 8,800 RPM REV LIMIT)

1st Gear: 3.133 / 80.56 MPH

2nd Gear: 2.100 / 120.18 MPH

3rd Gear: 1.520 / 166.04 MPH

4th Gear: 1.172 / 215.34 MPH

5th Gear: .941 / 268.21 MPH

6th Gear: .757 / 333.4 MPH @8800 *

7th Gear: .625 / 353.33 MPH (Estimated max @7,700RPM in 7th gear - Designed as mainly an overdrive highway cruising gear)

* FYI: Cross reference validations from data log-

Oliver is travelling at 236mph when he shifts from 5th to 6th at 7,700RPM (which tracks almost exactly to the gear-ratio data) and he pushed close to the top of 6th achieving 331.1 MPH at 8,600 RPM which tracks with our theoretical of 333.4mph @ 8800 RPM.

Aerodynamic Specs:

Drag goes from 0.279 up to 0.314 at 311mph (500kph)

Car is producing approx. 770lbs of downforce at 311mph

It is calculated that car needs 1,473HP to achieve 311mph (500kph)

In order to calculate the required power the following assumptions were made:

- The rolling resistance coefficient of the tires has been obtained from the manufacturer (Michelin Pilot Sport Cup 2) declared energy class: E.

- The overall drivetrain efficiency (from crankshaft to wheel) has been set to 94%.

- The air density has been set to 1,205 kg/m3 (which is found at 20°C at sea level).

- The vehicle mass has been set to 1474 kg = 1384 kg curb weight + 90 kg driver.

Tires:

Michelin Pilot Sport Cup 2

Rear Tire Diameter / Circumference: 345/30ZR20

Normal Running Pressure = 35psi

88.5” Circumference

28.185” Diameter

WORLD RECORD RUNNING PRESSURE = 49psi

89.125” Circumference

28.38” Diameter

How the Speed Was Measured
The SSC team received a piece of Dewetron equipment for its use in the speed run. The SSC team was trained remotely (due to COVID) on the use of that equipment.

The Dewetron equipment includes sensors placed in the vehicle, that tracked an average of 15 satellites over the course of the Tuatara top speed run.

Two independent witnesses, not affiliated with SSC nor Dewetron, were on site to view the speeds measured by the Dewetron equipment. SSC intends to submit proof of what those witnesses had seen on the Dewetron equipment to Guinness for verification.

On October 22, Dewetron sent a letter to SSC confirming the accuracy of the equipment and speed sensor they had provided to SSC, and that letter will also be submitted to Guinness as part of application for the world top speed record.

As an additional step, SSC is in the process of submitting the Dewetron equipment and speed sensor for further analysis and verification of that equipment’s accuracy.

Now I am smelling some manure here, because the videos they released made it is absolutely certain to the viewer that it was the 331 run and not a slower run uploaded by mistake.


1. The speedo of the car was blurred.
2. There was a laptop on the passenger seat instead which showed the GPS speed and it reached 331 mph on that. Now why would it show 331 mph on that if it was from a slower run?
3. The driver very enthusiastically celebrated his "record breaking run".

Also SSC's excuse of sync points of wrong speed graphics do not match up. If they are saying it was only a question of editing, the car travelled between two points slower than what its average speed should be. It is not a question of wrong graphics, its not physically possible.


Anyway instead of another video, why not run it again this time, with some observers for a change. Should be easy for SSC.

Last edited by avishar : 29th October 2020 at 01:28.
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Old 29th October 2020, 07:00   #27
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re: SSC Tuatara clocks average top speed of 455 kmph; breaks speed record for production cars

The plot thickens. SSC can't run around or pretend that the Dewetron statement did not happen. The ground is running out for SSC. Wonder how many allocations are going to get canceled for them now.

Here is the video on the latest.



In the comments section, the video poster has also mentioned the following "Since the production of this video I have had very respectful and open conversations with the guys from SSC. Tomorrow we will follow up with info from them that shares their concerns regarding the matter. Stay tuned for this update tomorrow where we share their perspective and look into what could have happened based on these discussions."

Hoping for a proper statement directly from SSC as well.

On a separate note, Shame on Motortrend. Just utter shameless stance they took while openly admitting that they have not analyzed anything yet declare that no foul play is involved. They have lost their credibility with just this single statement.

Cheers
Krishna

Last edited by krishnaprasadgg : 29th October 2020 at 07:04. Reason: Edited post to avoid duplication with previous post.
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Old 29th October 2020, 07:39   #28
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re: SSC Tuatara clocks average top speed of 455 kmph; breaks speed record for production cars

Oh this is crazy!

I didn't realise it was fake but was pleasantly surprised at how 500 odd kmph seemed rather slow. Suddenly Bugatti and Koenigsegg seem like saints!

I slept well that night knowing fully well that it is impossible to drive such a car beyond 400kmph on any race track in the world.
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Old 29th October 2020, 08:42   #29
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re: SSC Tuatara clocks average top speed of 455 kmph; breaks speed record for production cars

Top Gear can exclusively reveal that Shelby SuperCars (SSC) North America has set a new production car top speed record, hitting a VMAX of 331mph and setting a two-way average of 316.11mph on a seven-mile stretch of closed road just outside of Las Vegas, Nevada.

This was the statement released with a video of the run by Top Gear on 19/10/2020

And now with several questions been raised on the genuineness of the top speed claim Top Gear has posted some queries raised by them and the response from SSC on it on their website as below

https://www.topgear.com/car-news/ssc...eo-accusations

But their last line is what makes SSC and Top Gear look like absolute Fools “ Like you, we await the arrival of the verified data and video footage with interest”

So on what basis did they claim the Top Speed record without even verifying the data or the video that was uploaded. Also why delete comments and block people on social media if you stand by your record run???

So a British Motoring Magazine jumped the gun to crown an American car manufacturer for making the world’s fastest car which was challenged by a British YouTuber

Now, the North American Car manufactures are a bigger joke in the world and won’t be taken seriously anytime soon.

Meanwhile, this is how Jeremy and Richard responded when Captain Slow called them over a conference call and told them TG actually released the wrong/fake video of the Top Speed run

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Old 29th October 2020, 10:14   #30
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re: SSC Tuatara clocks average top speed of 455 kmph; breaks speed record for production cars

Quote:
Originally Posted by Turbohead View Post
Oh this is crazy!

I didn't realise it was fake but was pleasantly surprised at how 500 odd kmph seemed rather slow. Suddenly Bugatti and Koenigsegg seem like saints!

I slept well that night knowing fully well that it is impossible to drive such a car beyond 400kmph on any race track in the world.
but I think there was some issue with the buggati Chiron supersport high speed run too with some people claiming that they never tested the car in the opposite direction and therefore didn't calculate the average I don't know how true the claims are although.

Back on topic SSC look like clowns now that Dewetron has refuted their claims of them verifying the data. Motortrend might have lost a lot of clout and respect after that article.
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