German Supertuner RUF Building an Electric Porsche - Page 2

dpeilow · 10-12-2008, 06:41 AM

It looks like a big lash-up job to me

DVICE: Electric Porsche 911 tries to show Tesla Roadster who's boss

Quote:

...and the result? An electric Porsche 911 that sprints from 0 to 60mph in less than 7 seconds with a top speed of 160.

kmh?

With relatively (compared to the original ICE version) poor acceleration and top speed, this is a pretty bad advertisment for electric power.

TEG · 10-12-2008, 10:38 AM

Hmm... The original article said "With more torque on tap, the electric version might shave a few ticks off that time and could even beat the Tesla's 0-to-60 sprint of 4.0 seconds."

I guess they decided to gear it for 160mph (Autobahn) top speed rather than low speed acceleration.

domenick · 10-12-2008, 11:44 AM

I wonder what the range would be at 160 Mph. Anyway, I like the way Porsche looks but this car is a fail. I almost expected to see duct tape under the hood.

Finkenbusch · 10-12-2008, 01:28 PM

Acceleration comparisons on that level of sports cars in milliseconds is as important as faster ejaculation after masturbating on the open.

In a country with (wisely) 90 miles top speed buyer deciding (even wiser) on a car after calculating which model has more cup holders fitting the big Starbucks paper coffeholder - thats overkill.

Looking while at the Paris show at the Porsche & Tesla side by side (they where paraded on a parking lot slowly driving in a circle) the Tesla looks & smells evaporating and killing your nasal receptors as soon as you hit the seat (yes - smells inside - thats also important) like a beta Yugo in finish after a Hippy took a overnight nap with a unwashed overweight girlfriend and for easing that bad choice at the bar - a good smoke.
The Porsche shined in finish & smell comparable polished and perfumed as a gem in the Vatican.

The finish and visible lack in craftsmanship of the Tesla screwyou-on-the-fligh is visible by onlooking even to a self-educated Budukudu nudelbaker.

TEG · 10-12-2008, 02:02 PM

Finkenbusch writes like a mad lib.

dpeilow · 10-12-2008, 02:55 PM

I'd be very surprised if with 200bhp the Porsche could reach or sustain 160mph.

Finkenbusch, what are you talking about?

"milliseconds" - We are talking 3.9 seconds vs 7 seconds. 3.9 is supercar territory. 7 seconds is cheap hot-hatch territory.

Seriously, is this the European fightback that you have been alluding to all this time?

graham · 10-12-2008, 03:49 PM

Quote:

Hmm... The original article said "With more torque on tap, the electric version might shave a few ticks off that time and could even beat the Tesla's 0-to-60 sprint of 4.0 seconds."

I wonder why Wired keeps quoting 4.0 seconds instead of the stated 3.9? I could understand rounding by claiming "4 seconds", but they always compare it to a car where they specify to the tenth of the second. These are the same folks who claimed the original drivetrain was on par with the Toyota Tundra.

I am sort of surprised this Porsche is getting the press that it is. It has been all over the news the last few days. Almost every article compares it to the Roadster.

Quote:

Tesla looks & smells evaporating and killing your nasal receptors as soon as you hit the seat (yes - smells inside - thats also important)

Err... for the record: none of the dozen or so Roadsters I have sat inside have smelled. Perhaps he mistakenly sat in a Roaster by accident.

Quote:

Finkenbusch writes like a mad lib.

Bwahahahaha!

doug · 10-21-2008, 03:55 PM

Ruf's electric Porshce powered by UQM motor - AutoblogGreen

Road and Track tests battery-powered E-Ruf 911 - AutoblogGreen

RoadandTrack.com -- Cover Story - 2008 E-Ruf Concept Model A (12/2008)

doug · 10-22-2008, 06:16 PM

Ruf's Electric Porsche Hits the Road. Slowly. | Autopia from Wired.com

Odd that the diagram still shows the rear seat in place.

This thing does seem rather kludgey.... oddly routed hoses, dymo labels on the switches... They even just mated the UQM motor to the existing 6 speed tranny, which seems suboptimal for an electric motor. I mean it's fine for a home brew conversion, but kinda lame for a professional tuner.

WarpedOne · 10-23-2008, 12:52 AM

Quote:

They even just mated the UQM motor to the existing 6 speed tranny, which seems suboptimal for an electric motor

After reading alot about existing ICE -> Electric conversions I found out trannies are not such a bad idea after all. ICEs need them because of their narrow torque band but electrics will use them to increase efficiency i.e. range.

Electric motor is most efficient at it's top rpm. If you only have one gear ratio good for 120mph top, then you are almost all the time driving at less than half of max motor rpm - producing more heat than it would at higher rpm.

Tesla's range increased because their single gear ratio is now higher than previous 2nd gear - hence v1.5 motor is turning faster (= at higher efficiency) than it did in v1.0 drivetrain.

People report up to 30% higher range after they change their driving style. In an ICE car you increase range when driving at as low rpm (in higest gear) as possbile. When car starts to loose speed or you need more power you downshift to put the engine into higher rpm range. With electric cars this is almost exactly the opposite. You should drive in as low gear (high rpm) as possible for given road / speed limit.
If car starts to loose speed or you need more power you do not down-shift (3 -> 2) but UP-shift (3->4) into higher gear, so rpm lowers to higher torque band.