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Re:1.461 seconds from 0 to 100km/h: students break accelerat... by mburee on Wednesday October 12, 2022 @02:48PM (#33181296)
Why wouldn't they incorporate design from top fuel dragsters? They reach 100mph (!!) in under a second.
Re:1.461 seconds from 0 to 100km/h: students break accelerat... by sethgrisham on Wednesday October 12, 2022 @03:02PM (#33181492)
It's a track car designed for road races, not drag racing. This car is essentially meant to be a jack of all trades, whereas top fuel dragsters are probably the most purpose built car of all time.
Re:1.461 seconds from 0 to 100km/h: students break accelerat... by eenell on Wednesday October 12, 2022 @02:54PM (#33181374)
Why would an EV incorporate tech from top _fuel_ dragsters? What tech besides tyres and aero would they adopt?
Re:1.461 seconds from 0 to 100km/h: students break accelerat... by m463 on Wednesday October 12, 2022 @03:06PM (#33181550)
I'm pretty sure top fuel dragsters are all about tires and aero and only inconsequentially the power source.

It might be an easy problem to solve acceleration to 100km/hr since you don't have to carry batteries to go an entire 1/4 mile

Re:1.461 seconds from 0 to 100km/h: students break accelerat... by Nition on Wednesday October 12, 2022 @05:27PM (#33183572)
There are electric top fuel dragsters now. https://www.youtube.com/watch?v=_LQXB1DX-2Q

They don't seem to be close to as fast as the ICE ones yet. The fire and sparks from the engine is fun though. "These motors are rated at 200amps each, we push 2000amps through them for 7 seconds."

Re:1.461 seconds from 0 to 100km/h: students break accelerat... by sbierwagen on Wednesday October 12, 2022 @03:13PM (#33181639)
The video shows it using kart tyres, and I would be interested to see what it would do with proper drag radials, since they change shape quite a lot during a launch: https://www.caranddriver.com/features/columns/a26089565/drag...

>The massive torque channeled through the rear axle shifts the load of the car rearward and tries to twist the tire on its 16-inch beadlock rim. The sidewalls wrinkle as the tire—generally running between 6.0 and 10.0 psi of pressure—shrinks in radius by more than six inches and the tread effectively balls up at the front of the contact patch. That compression of the tire expands the contact patch to almost 250 square inches—larger than two side-by-side sheets of 8.5-by-11-inch paper. The compression of the tire also means that the final-drive ratio is effectively shortened for a harder launch. By the time the tire has released the torque stored in its wrinkled sidewalls and tread and grown back to its original size, the Top Fueler is already pulling more than 4.00 g's of acceleration.

>After the car launches, inertia grows the tire to as much as 38 inches in diameter, simultaneously lengthening and narrowing the contact patch. This effectively lets the final-drive ratio grow taller for higher speeds and reduces rolling resistance as the vehicle hits terminal velocity.

Effectively a big CVT with no moving parts.

Re:1.461 seconds from 0 to 100km/h: students break accelerat... by antonvs on Wednesday October 12, 2022 @03:01PM (#33181484)
Flames, smoke, and the occasional explosion perhaps?
Re:1.461 seconds from 0 to 100km/h: students break accelerat... by Animats on Wednesday October 12, 2022 @03:15PM (#33181669)
Wheel spinning and burning rubber?

Electrics going for maximum acceleration usually don't do that, because once the wheel is spinning relative to the pavement, friction is reduced and there's less acceleration. Watch videos of Teslas in launch mode.

Re:1.461 seconds from 0 to 100km/h: students break accelerat... by robocat on Wednesday October 12, 2022 @07:22PM (#33185106)
> burning rubber

The burning rubber is to heat the tyre rubber to get the rubber to maximum adhesion, just before doing the run.

> Wheel spinning

Maximum acceleration occurs with some tyre slip - spinning a little but not a lot: https://www.researchgate.net/profile/Masayoshi-Tomizuka/publ... https://www.google.co.nz/search?q=tire+adhesion+versus+slip+...

I am guessing you know that, but just clarifying.

Re:1.461 seconds from 0 to 100km/h: students break accelerat... by antonvs on Saturday October 15, 2022 @03:46AM (#33212711)
Did you watch the video? They do exactly that.
Re:1.461 seconds from 0 to 100km/h: students break accelerat... by orangepurple on Wednesday October 12, 2022 @03:09PM (#33181601)
The clutch which fuses itself into a solid unit instantly
Re:1.461 seconds from 0 to 100km/h: students break accelerat... by ominous_prime on Wednesday October 12, 2022 @03:08PM (#33181576)
not many other vehicles have the ability to transfer >6000ft/lbs of torque down to the pavement to be able to accelerate at 5gs
Re:1.461 seconds from 0 to 100km/h: students break accelerat... by orangepurple on Saturday October 15, 2022 @07:14PM (#33219535)
not to mention each run down the track is a stunning controlled demolition of the engine
Re:1.461 seconds from 0 to 100km/h: students break accelerat... by kfajdsl on Thursday October 13, 2022 @02:26AM (#33187906)
This is designed for the formula student electric competition, not just to go fast in a straight line.