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Discussion Starter #1

The SSC Tuatara will do 60-120mph in 2.5 seconds
Prepare thine puny minds to be fried by how quickly an American hypercar accelerates

A recent test of the 1,750bhp SSC Tuatara – just your regular ‘buzz-up to 210mph’ checks to monitor shock potentiometer and downforce balances – revealed something quite extraordinary.

“I do have kind of a funny story to share,” SSC boss Jerod Shelby tells TopGear.com. “Early in the particular test day, we did a few 90 per cent throttle second-to-third-to-fourth gear pulls to data log and measure the upshift sequence timing in Track Mode (that produces aggressive shifts).

“I noticed, during those pulls, that I wasn’t feeling any indication of our rev-limiter kicking in at 8,500+rpm. So, when we got back to our facilities, we emailed the data logs off to our master tuner (a daily occurrence), and asked him to verify that the rev-limiter is still programmed to start kicking in lightly at 8,500+rpm.

“I got a call from a very excited tuner later that night, while I was eating dinner with my family, saying: ‘do you realise that you’re going from 60mph to 120mph in 2.5 seconds flat in a couple of these pulls?’

“He said ‘I didn’t think that was physically possible from a 2WD car, but I checked and your logger was tracking six satellites during these runs, so this is legitimate. That is absolutely crazy’, he said.

“My response to him was… ‘what about the rev limiter?!”

Shelby said his tuner reminded him that ‘heavily modified, 2,500-3,000bhp AWD race vehicles run those kinds of times’. The Tuatara of course, is a rear-drive hypercar designed to be driven every day. Woah.

taken from Top Gear
 

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I wonder why they didn't just say the 60-130 which is a much more widely used benchmark.
 

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I'm your huckleberry...
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Discussion Starter #4
According to Drivetribe, these should be the numbers of the SSC Tuatara in terms of downforce:

  • High downforce mode: velocity limited to 290 km/h, maximum downforce of around 226 kg (500 pounds)
  • Top speed mode: the drag coefficient is reduced to its minimum, and the car generates a (maximum ?) level of downforce equal to 408 kg (900 pounds) with the clear aim not to improve track handling but stability at the highest velocities
I mean, given the immense power of the car and a supposed dry weight of 2750 pounds (1247 kg), it is clear that the whole setup is optimised from the start for top-end velocity runs rather than track performance.

Moreover, according to Carbuzz, there will be a "High downforce package" version of the car, with the focus put more on handling and cornering performances rather than top-speed:

670857.jpg


In this configuration, according to Drivetribe, the Tuatara is said to theoretically generate 1000 pounds (around 453 kg) of downforce at around 257 km/h.

Despite the numbers of the "high downforce version", I think it's clear that the target of the Tuatara is to provide pure power, acceleration and top speed above anything else.
 
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