[CrazyAl]

What a fantastic Electric Car.

What are the specs like torque and hp? I reckon this car is better than when it originally came out of the BMW factory.

[Yabert]

Nice video.

Originally Posted by EV West

Currently at 265 volts, and 1400 amps, with sag and drivetrain loss, we are at about 370hp at the tires...

Can you explain how you calculate 370 hp at wheel with your current battery set-up?

[Tesseract]

Originally Posted by Yabert

...
Can you explain how you calculate 370 hp at wheel with your current battery set-up?

This is a recurring theme with you, isn't it?

265 x 1400 = 371kW

Assume 25% sag and drivetrain losses and you get 371hp. It's a reasonable first pass estimate.

[EV West]

Originally Posted by sheik480

I find this rather amazing. My concern at this point would be, as stated before, the transmission as it seems the power components are potent enough.

Yes, very much so. We have a heavy duty clutch in it now, and it's already showing signs of slipping. We have also been playing around with another solution that we will post here soon. I can say that the BMW drivetrains are pretty close to bullet proof. We are impressed.

[somanywelps]

Originally Posted by EV West

Yes, very much so. We have a heavy duty clutch in it now, and it's already showing signs of slipping. We have also been playing around with another solution that we will post here soon. I can say that the BMW drivetrains are pretty close to bullet proof. We are impressed.

valerun was having this issue too with the E46s, even with aftermarket plates apparently.

[Yabert]

Originally Posted by Tesseract

265 x 1400 = 371kW
Assume 25% sag and drivetrain losses and you get 371hp. It's a reasonable first pass estimate.

Ok, it's more clear now. This is what I wanted to know.
So, I assumed 320v nominals

[somanywelps]

What blowers are you using?

2 blowers to one motor?

[EV West]

Originally Posted by somanywelps

What blowers are you using?

2 blowers to one motor?

They're some off brand. We ordered several different makes, and ran volume and anemometer tests on them, then picked the ones with the highest observed CFM. When the second motor is added, we'll have 4 blowers for the car.

We really like the output on these blowers, and will most likely make them available on our website.

[somanywelps]

Originally Posted by EV West

They're some off brand. We ordered several different makes, and ran volume and anemometer tests on them, then picked the ones with the highest observed CFM. When the second motor is added, we'll have 4 blowers for the car.

We really like the output on these blowers, and will most likely make them available on our website.

$100-200?

approx CFM and Amperage draw? (Assuming 12V)

[drgrieve]

Originally Posted by Tesseract

This is a recurring theme with you, isn't it?

265 x 1400 = 371kW

Assume 25% sag and drivetrain losses and you get 371hp. It's a reasonable first pass estimate.

I would calculate much less after adding motor losses.

Calb 200ah at 7C would sag ~25%, Drivetrain ~5%, Controller and Motor ~20%.

265 x 1400 / 1.25 / 1.05 / 1.2 = 236 kW = 317 HP at the rear wheel.

@EVWest Thanks for sharing the video and looking forward to more of the same