NORTON
Posts: 1273
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: Videos of Sparky Flexing Its Torque

Sun Apr 02, 2017 4:01 pm

JeffTAC4 wrote:..I do not know what you mean by porn or "next image". It should only be one image.
Yes the link came to this image. But then to see the rest of the story about this very strange picture of skid marks, I clicked "Next" which led to a bad place. I'm not trying it again....

Wow, you set the record for embedded image size on this post above !!

Which brings up SO many questions: If the car started at the bottom of the image, what speed was it going when the skid marks fade just near that curb at the top of the image? :?

Does anyone else wonder WTH is going on with this image? (Shades of 'My Cousin Vinny' when they use skid marks images during the trial !! Remember that?!)

Sorry Jeff, I sort of call BS on this one. If you made these marks, how and why did you waste all that rubber? (Without crashing at the end of the burnout? :o )

Post a video next time and I will be a true believer ! 8-)
Used '14 2LT w/ DCFC. +76 K miles.
Mostly free charging! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.
3 step Trouble Tree, 2nd guess not covered by warranty and cost $800. 3rd guess fixed the problem.

Nashco
Posts: 537
Joined: Wed May 29, 2013 12:00 am
Location: Portland, OR

Re: Videos of Sparky Flexing Its Torque

Mon Apr 03, 2017 2:56 pm

JeffTAC4 wrote:
Nashco wrote:How did you do this? Seriously, what procedure allowed a prolonged two wheel burnout?!
Traction control off, Stability control off, SPORT mode, Low "gear".

No special prep. Stock Ecopias at 35 PSI, cold.
This is extremely hard for me to believe. I've hooned around a LOT with my Spark EV, and absolutely no way would my (2014) car allow this much wheelslip. It was obvious this would be the case when it snowed shortly after I took delivery of my car (January 2014)...even with ice on the road, the car won't sustain a "burnout" because it reduces the propulsion power significantly when there's a differential of speed between front and rear axles. With reduced propulsion power, no way my car would sustain a burnout on dry pavement. Also, once the car detects wheel speed above 30 mph, stability control is automatically turned back on.

So, I really would like to know why your car allows this type of burnout and mine doesn't. If you take a video of your car doing a burnout like this and the procedure you use to do it, I'll send you $20 via paypal to buy yourself dinner and a beverage...no joke. That will be the first step to figuring out what could be different between your car/procedure and ours.

Bryce

Dinoco
Posts: 23
Joined: Sat Jan 31, 2015 12:48 pm
Location: Lincoln, CA
Contact: Website AOL

Re: Videos of Sparky Flexing Its Torque

Mon Apr 03, 2017 6:14 pm

Highly doubt this as well. Video or this never happened.

Also I tried putting in nuetral, pedal to the floor and popping into drive idea suggested.... made no difference.
Hi.

NORTON
Posts: 1273
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: Videos of Sparky Flexing Its Torque

Tue Apr 04, 2017 4:29 am

Come on. Look at the skid marks. They taper off 12' feet from a curb and a 90° turn. This is a faked shot or a 'shopped' photo.

No car could have done this on it's own. Maybe with a truck holding its speed down and tapering off the power near the end.
Or they achieved 78 mph and disappeared, only to arrive 20 years later.
Used '14 2LT w/ DCFC. +76 K miles.
Mostly free charging! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.
3 step Trouble Tree, 2nd guess not covered by warranty and cost $800. 3rd guess fixed the problem.

PhilPen
Posts: 72
Joined: Mon Oct 31, 2016 9:54 am
Location: Hamden, CT

Re: Videos of Sparky Flexing Its Torque

Tue Apr 04, 2017 5:49 am

It is possible to do very long burnouts at low speed (or even without moving) by having the brakes on on the non-driving wheels. This is done using "line locks" on rear wheel drive vehicles (line locks when engaged enable fluid pressure on the front brakes to be maintained after releasing the brake pedal, leaving the front brakes on but the rears off) or by using the emergency brake on a front wheel drive vehicle. I think these marks weren't made by either photoshop or by a Spark, but by some other vehicle with brakes applied to the non-driving wheels. Since the lines are so straight it was probably a front wheel drive vehicle with the e-brake on.
2015 Spark EV 2LT electric blue with DCFC
2016 Spark EV 2LT salsa red with DCFC

SparkevBlogspot
Posts: 499
Joined: Mon May 25, 2015 12:19 pm

Re: Videos of Sparky Flexing Its Torque

Tue Apr 04, 2017 5:59 am

If you're trying to make dual tracks using acceleration, you will need limited slip differential. Otherwise, only one wheel will slip. Limited slip differential is rare.

But if you yank on the parking brake while moving, it will leave two tire tracks. Brakes are the most powerful things on a car, and it's easy to make the tires leave marks. Not sure if SparkEV can do with parking brake button. I won't risk mine, maybe some crazies here can try?

JeffTAC4
Posts: 17
Joined: Mon Feb 13, 2017 12:05 am

Re: Videos of Sparky Flexing Its Torque

Tue Apr 04, 2017 6:02 pm

I find it hilarious that this is so hard to believe!

The car is not modified in any way, and I posted my settings earlier. No special preparation went into the making of these skids.

There was no photoshop involved. There were 2 ~200 lb males in the car (driver and passenger). The front Ecopias are fairly new (<1,000 miles on them).

The car did start at the bottom of the image. I do not know what the speed was at the end of the run, but it was not unreasonably fast. The sustained wheel spin prevented the car from accelerating very quickly. At the end of the run, I rounded the corner to the right.

Why? Because I can!

I promise there is nothing fishy going on here. I just thought it was a cool picture and wanted to share it with you guys.

SparkSS
Posts: 15
Joined: Fri Mar 31, 2017 2:51 pm

Re: Videos of Sparky Flexing Its Torque

Tue Apr 04, 2017 7:43 pm

JeffTAC4 wrote:I find it hilarious that this is so hard to believe!

The car is not modified in any way, and I posted my settings earlier. No special preparation went into the making of these skids.

There was no photoshop involved. There were 2 ~200 lb males in the car (driver and passenger). The front Ecopias are fairly new (<1,000 miles on them).

The car did start at the bottom of the image. I do not know what the speed was at the end of the run, but it was not unreasonably fast. The sustained wheel spin prevented the car from accelerating very quickly. At the end of the run, I rounded the corner to the right.

Why? Because I can!

I promise there is nothing fishy going on here. I just thought it was a cool picture and wanted to share it with you guys.
Thanks for being a good sport. Some of the comments were pretty harsh. I would love to see a video of a Spark EV, especially a totally stock one, doing a burnout. Please post it here. Thanks.

JeffTAC4
Posts: 17
Joined: Mon Feb 13, 2017 12:05 am

Re: Videos of Sparky Flexing Its Torque

Tue Apr 04, 2017 10:14 pm

I have not tried to replicate this particular scenario (don't wanna kill the tires THAT fast!), but I will give it a try this weekend.

NORTON
Posts: 1273
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: Videos of Sparky Flexing Its Torque

Wed Apr 05, 2017 5:10 am

JeffTAC4 wrote:I have not tried to replicate this particular scenario (don't wanna kill the tires THAT fast!), but I will give it a try this weekend.
Yay !! :D Please do. At the exact same parking lot.
I just can't visualize how fast you were going to make the turn at the end of this 'burn out'.

And just for the record: "L and Sport mode" does nothing for power. Both are minor SW operational changes. Full Go Pedal always equals Full Power.

I'm back on my original ecopias and trying to use up these turkeys so I can get back to performance tires.
How can I make smoke just like your Spark EV does?
Used '14 2LT w/ DCFC. +76 K miles.
Mostly free charging! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.
3 step Trouble Tree, 2nd guess not covered by warranty and cost $800. 3rd guess fixed the problem.

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