Recent content by Skullbearer

If the next dealer is unreceptive, message me the contact info of the service writer. You can let them know an Engineer was consulted and will call. Let's avoid it though if they will handle it appropriately. You can also use OnStar to get to Chevy Spark EV support, which can escalate it to...

I listened to the videos and compared to my own Spark. The clicking sounds like the system opening and closing the proportional valve or solenoid that allows direct pedal braking. The electrical noise may be the pump repressurizing the hydraulic accumulator, buy it doesn't sound like an arc to...

Could is a difficult question to answer, because failure modes can be very complex, especially since I wasn't part of the design team and don't know it well. But, that is well within expected operation, it SHOULD NOT have caused any problem (even if it did). Should not, as in warranty covers...

Definitely not a normal sound or feel, but it probably is related to the blended braking system. You can replicate the 'correct' sound of this change by using moderate regen braking at speed (say 45mph) and then shifting to N. The vehicle makes a very slightly clunky transition to 100%...

This technology doesn't need to be engineered from scratch, its existed for a long time. Off the shelf diesel-air heater: http://www.espar.com/fileadmin/data/countrysites/EB_Kanada/pdf/Airtronic_D2-D4-D5_Spec_sheet.pdf Including 100% biodiesel...

If you can tap the CAN and log the raw messages during the charging sequence to see how many there are, we could build a strategy for experimental decoding. Unless Tesla/Toyota intentionally built in messages to be misleading, the biggest issue you're going to have is if there is any...

The Rav4 EV IS a Tesla project, which is why it has their OBC and similar range focus, along with very strong performance. Part of the low adoption of DC-FC for vehicles with 30kWh or under batteries is the very small usage and smaller benefit compared to DC-FC on a Tesla, for example. DC-FC...

I've seen my display show spikes of just over 130kW when I have full HVAC with defrost going, full throttle. It definitely ramps down the peak power allowed on a short countdown, but since I can't drive straight up a wall for a mile, I don't know if its a 10s ramp or longer, I hit top speed at...

So a few of you may have noticed in the 6.6kW Effective Charging thread that I have been toying with building a 'cheap' home DC combo charger for somewhere between 6.6kw-12.2kW of 208/240V charging. The key issue that I need to address before I can do so, however, is adding the DC fast charge...

We have to be careful with speculation on the A123 cells, they don't publish all their options and have both 'energy' and 'power' cells. The cells that are commonly in this form factor pack are 'energy' cells and have a spec 10s peak discharge rate of only 10C, and a 30s of 5C. Saturation will...

The core difference here is that high voltage, and EV equipment in general, is much more difficult to modify in a DIY sense, meaning GM doesn't have to account for people upping power. GM almost certainly runs everything at the most efficient point possible while maintaining driveability. The...

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...

My Bosch will arrive in two weeks. The Clipper Creek is my choice though without the $500 discount.

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...

This is good, that just means it can be more effectively integrated into an adapter cable for CHAdeMO to SAE J1772 CCS. GreenPHY looks like it will become the standard for V2G in the U.S., but that could just be hype by SAE and GreenPHY at this time. So CHAdeMO not needing it is not an...