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by Skullbearer
Mon Mar 31, 2014 8:19 am
Forum: Modifications & Accessories
Topic: Performance Boost!?
Replies: 40
Views: 35909

Re: Performance Boost!?

If you could reflash the battery controller to allow more power you could probably get it, but the motor likely can't safely put out much more. For that matter, the battery probably only has a 15-20% margin before real damage would occur. Sounds like a lot of "probably" and not a lot of actual data...
by Skullbearer
Fri Mar 28, 2014 2:45 pm
Forum: Modifications & Accessories
Topic: Performance Boost!?
Replies: 40
Views: 35909

Re: Performance Boost!?

On the topic of improving performance, tires are the biggest improvement on a traction limited vehicle such as the Spark EV... but after ~30mph you are already producing maximum power. Power is power, you can only reduce weight or increase power to improve acceleration above 30mph. If you could refl...
by Skullbearer
Fri Mar 28, 2014 2:36 pm
Forum: Batteries and Charging
Topic: Home Charging Stations, What Do You Guys Have??
Replies: 30
Views: 20834

Re: Home Charging Stations, What Do You Guys Have??

My Bosch will arrive in two weeks. The Clipper Creek is my choice though without the $500 discount.
by Skullbearer
Fri Mar 28, 2014 10:06 am
Forum: Modifications & Accessories
Topic: Spark EV - An affordable electric racecar (my build thread)
Replies: 82
Views: 82202

Re: Spark EV - An affordable electric racecar (my build thre

Unfortunately for autocross, that huge battery is going to 'weight you down' (quite literally), without actually being a necessity in terms of energy storage. Doing a total battery swap is a good year long project for someone who can blow $40k+, probably out of scope. Tires should make a huge differ...
by Skullbearer
Fri Mar 28, 2014 9:53 am
Forum: Modifications & Accessories
Topic: 6.6kW effective charging?
Replies: 53
Views: 40442

Re: 6.6kW effective charging?

Entirely possible, though it would be a tragic error on SAE's part to compete against existing standards with the only advantage being one vs. two plugs on the vehicle. One of their published intents is to allow bidirectional interfaces via the DC bus, so that car OEMs don't need to add the costly ...
by Skullbearer
Wed Mar 26, 2014 2:58 pm
Forum: Modifications & Accessories
Topic: 6.6kW effective charging?
Replies: 53
Views: 40442

Re: 6.6kW effective charging?

The benefit is that installation and component costs go up with power. The cheapest route to say, 9.9kW charging on your Spark EV, is to add only 6.6kW external. The plug supports both forms of communication on the pilot and both J1772 and GreenPhy communications are independent and non-interfering...
by Skullbearer
Wed Mar 26, 2014 9:13 am
Forum: Modifications & Accessories
Topic: 6.6kW effective charging?
Replies: 53
Views: 40442

Re: 6.6kW effective charging?

The CCS allows simultaneous 1 phase, split phase, or 3 phase AND/OR DC charging with the combined J1772 and GreenPHY J1901 based communication for control. I need to dig into the J1901 standard to see how reproducible it is. An ElCon charger for example, combined with the CCS could be used to provi...
by Skullbearer
Wed Mar 19, 2014 5:22 pm
Forum: Modifications & Accessories
Topic: GM all weather floormats in the Spark EV (Part 95259816)
Replies: 15
Views: 19893

Re: GM all weather floormats in the Spark EV (Part 95259816)

I just purchased a few days ago, they had mats listed for the EV specifically. I ordered them under the purchase, haven't come in yet. If they don't fit the driver side, I'll let you know, otherwise I can post the part number.
by Skullbearer
Wed Mar 19, 2014 5:17 pm
Forum: Modifications & Accessories
Topic: Spark EV - An affordable electric racecar (my build thread)
Replies: 82
Views: 82202

Re: Spark EV - An affordable electric racecar (my build thre

Might need to put some spacers or completely new hubs on to get those wheels in. I can barely get two fingers between my fronts and the nearest contact at full-lock. We considered putting a set of the rear tires onto the front (but from Pirelli) of our Sparks here at work (3 here as of this last wee...
by Skullbearer
Wed Mar 19, 2014 5:04 pm
Forum: Modifications & Accessories
Topic: 6.6kW effective charging?
Replies: 53
Views: 40442

Re: 6.6kW effective charging?

Great link for that paper, I look forward to the 50k lab results. Obviously Nissan did a good job with the LEAF battery, especially given that it isn't liquid cooled. I wouldn't consider the difference shown at 30k and 40k to be insignificant, not with the vehicle range as it is. Beyond 50k, though ...

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