[0f02g]

Does anybody know or is there any literature as to
what is considered too hot for battery coolant temperature and transmission temperature? I want to know before i have pushed the car too hard.

thank you,
Shawn

 

[MikeyBolt]

I'm not even sure if it's possible to overheat a Bolt. At least, I've never heard of it. Teslas can overheat and end up reducing power if you run them hard but that's because Tesla pushes them to the limit. I think the Bolt is so conservative that you don't have to worry about it (unless something is wrong mechanically/electrically).

Mike

 

[0f02g]

Okay, thank you. I was hoping for maybe some kind of number limit. I will be at a track event and plan to charge between sessions. It would be nice to know limits before i run into them.

shawn

 

[XJ12]

Okay, thank you. I was hoping for maybe some kind of number limit. I will be at a track event and plan to charge between sessions. It would be nice to know limits before i run into them.

shawn

Hang on, there's some posts from someone who takes it to the track and did run into a temp limit. The solution was to stop using regen. I'll search for it. Give me a couple minutes.
Here's one mention, but not what I was looking for:

I beat Corvettes and Mustang with my Bolt in the...

The EV-MODS 2018 Chevy Bolt EV did excellent in the Ultimate Street Car Series in Las Vegas last weekend. I won the EV Class against a veteran Chevy Spark EV that had lots of mods. Even more impressive is finishing mid-pack against all cars including Supercars, Corvettes, Mustang, WRX, GTR's...

www.chevybolt.org

 

[XJ12]

Does anybody know or is there any literature as to
what is considered too hot for battery coolant temperature and transmission temperature? I want to know before i have pushed the car too hard.

Okay, here's the info:

In aggressive driving and racing application the parameters that the Botl EV regenerative brake system was designed for changes significantly and a Big Brake Kit becomes relevant. With aggressive repeated braking as done on a race track, I have seen the electric motor on the bolt spike close to 300*. This is due to the regenerative brake system becoming overwhelmed trying to deal with both the rapid flow of incoming energy and then rapid application of energy for acceleration. In addition to better brake feel, my EV-MODS Big Brake Kit stores additional heat in the mechanical brake system vs sending it to the electric motor and battery (Bolt has had no issues with bat temp in racing just motor temp). A big brake kit does not reduce the efficiency of the regenerative braking system but it does give excessive heat a place to go. With a big brake kit on the Bolt EV the temperature of the electric motor runs about 50% to 100% cooler than without.

MGP Caliper Covers now available

MGP now has caliper covers available for our Bolt EV. I'm looking for someone to take photos of these installed to show on EV-MODS. Since I have a Big Brake Kit installed on my Bolt and these are made for the OE Brakes; I will offer them at my cost in exchange for some installed photos. For...

www.chevybolt.org