[epyon]

I wanted 150-180 mph , oh well just gotta aim higher . But I'm setting my car up to road race . But for the next year an a half , it will be a 34mph "Loook at me" show car til I save up the money .

[GerhardRP]

Originally Posted by John Metric

This is the run chart from the 155mph run. See the overdrive shift in the middle. We ran at 1200max amps on the battery where the factory rating is 2500amps max.

Hi John,
Could you email me the hex file for this run. I looked at the 1/4 mile file you sent earlier: the motor current and voltage work out, but I don't have a good handle on battery voltage yet. The internal resistance must depend strongly on battery temperature. I'll post graphs soon.
Gerhard.

[epyon]

If you started slower , do you think you could have gone faster and needed to use less amps an volts ? Did the wires get very hot ? Hot wires slow down the power a little . I was gonna put the controller right up front behind the grill in the air to cool it . and put a fan on it too . I live in Nevada so I thought it should be there to cool it faster . But even if I use 2 gauge wire , it's still alot of wire for my dirict drive car (10 ft motor to switch , 12ft motor to controller/main power)

[somanywelps]

360kw peak?

[GerhardRP]

Originally Posted by GerhardRP

Hi John,
Could you email me the hex file for this run. I looked at the 1/4 mile file you sent earlier: the motor current and voltage work out, but I don't have a good handle on battery voltage yet. The internal resistance must depend strongly on battery temperature. I'll post graphs soon.
Gerhard.

Do you monitor battery temperature? If so, can I see the numbers.
Work has me crazed, but this project persists.
Gerhard

[John Metric]

Originally Posted by GerhardRP

Do you monitor battery temperature? If so, can I see the numbers.
Work has me crazed, but this project persists.
Gerhard

I have three thermocouples, one deep inside each pack. and then there are the 90 board temps which sit right on top of the cells.
Unfortunately, none of these are recorded like the zilla data. I can only read them when I get back to the pits, three from the BRUSA software and the ninety from the Elithion Software.
Both of them are on CANBUS but I don't have a CANBUS display system.

Metric

[John Metric]

Originally Posted by epyon

If you started slower , do you think you could have gone faster and needed to use less amps an volts ? Did the wires get very hot ? Hot wires slow down the power a little . I was gonna put the controller right up front behind the grill in the air to cool it . and put a fan on it too . I live in Nevada so I thought it should be there to cool it faster . But even if I use 2 gauge wire , it's still alot of wire for my dirict drive car (10 ft motor to switch , 12ft motor to controller/main power)

I don't think so. Even though the zilla was cutting back a little, it really only cuts back the maximum amps, which we weren't exceeding near the end, see the chart.
Our weak spot turned out to be the brushes and brush wires in the second motor. I think the hot air from the front motor was going out of the back of the first and into the brush holes of the second. This cooked the wires. It didn't fail on this run but the next run in Tucson, we "Cleared" the weakened ones.

Metric

[Tedktis]

Congrats! Awesome! Trying to get the Helwig brushes for my Warp9. Anyone talk to Netgain today. Tried calling several times before the weekend.

[John Metric]

Originally Posted by Tedktis

Congrats! Awesome! Trying to get the Helwig brushes for my Warp9. Anyone talk to Netgain today. Tried calling several times before the weekend.

They are out for the weekend and Monday. Poor George is in the Hospital having surgery for a kidney stone. Team Lonestar EV Racing is praying for a speedy recovery.

[Tedktis]

Originally Posted by John Metric

They are out for the weekend and Monday. Poor George is in the Hospital having surgery for a kidney stone. Team Lonestar EV Racing is praying for a speedy recovery.

Had a feeling something was wrong. Praying for a speedy recovery George. Thanks John.