How many laps can one reasonably expect to run using a Tesla, driving "rookie" all out, on a race track? Like, saaaay, Road Atlanta (2.5 miles long)? I'm talking about an average track day. Thanks! Just wondering if you have any stats on efficiency when driving at the limit.
wow - that looks amazing!
I had heard that the airflow around the wheels contributed 20% to the total drag of a car, further i had heard 1 maker using air flow from front to out of the wheel wells to reduce this effect markedly, apparently reducing drag some 10% - as well as other clever features. has anyone there investigated this yet ? - one further point. knowing the elise is quite small,(and knowing the tesla is similar) - would it be possible to produce a mdified GT racer, stripped out, parred down and bulk more batteries with multiple charging points (?) with increased motor and voltage capabilities (?) . What tyres were they using ? - i have seen a couple of reviews that really hated the "eco" tyres that were on. I know i've just switched tyres on my car, it increased consumption 5%- BUT in wet weather the grip is about 80-85% of that in the dry - a big bonus for safety. (think tornado type down pours)
If power rating were increased 100% - then max speed i estimate at 30% higher, with controlled torque at low speed - i could see it moving up from position 30 to position 15 . But again - the driver, if he could risk a shunt, could probably get that up to 10 or so. Another aside is that i really prefer tin-tops , stiffer body, no sun burnt noggin ! (live in Qld Australia - bit like florida i guess) and better aerodynamics . keeping the driver cool might be a problem here.
I used to race a supercharged 1976 mini cooper S 1312cc - it hit 147mph and a 14.8 quarter, regularly embarassing 5 litre V8's - especially as it only weighed 750Kg (fibreglass, stripped out, etc) - 220BHP per ton.
I really look forward to future improvements, and the possibility of a racing variant. - not to mention being available in australia.
perrie iles: I think Roadster could get what your mini cooper does just by little longer gear ratio. Roadster top speed is limited by RPM which is set to 14000 and 125mph, and it can get quarter mile in 12 secs. If we add three seconds to quarter mile we get higher top speed.
One thing to consider about this race was that Roadster is _not_ an race car, it is sports car. It (or some EV) can be made quite a bit better for races.
With a bit different set of batteries for more power, little less weight, different suspension, race-tires etc. I bet Roadster could beat all ICE-cars in short race. In long race there is still fuel-problem. Current generation batteries just don't give same range as gas, and "refill" takes a lot longer.
Seeing the Roadster jump to Warp 8 around 1:18 in the video elicited a few choice, unprintable words from me... I've read about the insane acceleration and the "warp drive" sound, but never have I seen it demonstrated so effectively in such a "clean audio" video... Usually sound of the acceleration is covered up by wind noise, compression artifacts, voiceovers, and so on.... Here, it's just.... wow.
And to hear the engine spool back up to fling the car out of the corners, I could've sworn it was a fighter jet. And then in-between, it's so ghostly smooth and quiet.
Dang, I can't wait for the Model S!
Looks like you guys had fun. Thanks for the excellent write up and video.
I saw the two cars in the store just before the event. I didn't realise you were going to *race* them! If I'd have known, I'd have made the trip down to Goodwood to support. Give me a heads up for next time and I'll come and cheer you on :)
Quite respectable, no doubt!
One question, tho-
has anyone tested the roadster on the Nürburgring?
THAT would be an interesting time to post.
perhaps it might warrant a second look from the jokers over at top gear.
Oh baby! Just watching that take-off put my old EV1 grin on my face!
You should'a raced the Aston Martin. I can't tell you how many people were surprised by the EV1, and it was only 1/2 as fast.
I'm a responsible dad these days and need 4 doors. I'm waiting for my Model S.
That is an exciting video, though a bit spooky, due to absence of expected race-car engine noise. Indeed, it's like a dream sequence -- a combination of driving and flying fantasy, Thanks for posting it.
The sound of an accelerating Roadster is just plain awesome.
Besides that, congrats on the succesful race.
So... As I understand this write-up, these two Tesla Roadsters aren't modified for Racing? Rather, they are two "bone stock" cars just as one would purchase at their local Tesla Retail Store (I really like the sound of that, by the way!)
Not to mention, the driver has no prior experience on this track?!
I'd say that's a pretty admirable job you did in the video!
Now, Am I the only one thinking about how I could modify one of these to run much faster?
Three things strike me as "priority" right off the bat...
Notice the launch. -there is energy being wasted the way the car winds up and suspension work is going to help convert all that energy into motion.
Was this car corner weighed and tuned prior to the laps at Goodwood?
Traction or course, as everyone knows, tires are the largest single improvement (reasonably)
but a stability program would make the car faster on the track AND would provide valuable data for ESP's to be used as safety features on future production models
-The brakes.... -A set of Alcons, AP's even a modified set of 6-pot Brembo Calipers off a Cayenne retrofitted to pinch some 350+mm 2 pc rotors would yield incredible rewards.
And a few questions: Is this car "fly by wire"(throttle) "steer by wire" "brake by wire" or any other "by wire" systems?
A 3 axis accelerometer, a control module and a couple of the redundant circuit Cherry sensors sitting on my workbench, and this could be made to cling to the edge of the envelope in every turn by simply holding the throttle to the floor.
God would I love to have one of these and about another $50k to spend on modifying it!