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Kermit - Hillclimb Buggy Tesla Swap

Just stumbled across this thread, need to read it beyond the last post now.

I joined the EV clan with a little luxury commuter a month ago, and I love it. I can't wait to see the results of what Dean and Danny are working on, and now I've got another to follow with Kermit. đź‘Ť
 
Seeing this beautiful thing come to life post by post is making me shed a tear, so passionate!
 
Update time. The drive unit got torn down last month, welded the diff, replaced all the major bearings, and installed the AEM controller so aside from needing new shaft seals, it is ready to go.
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The last big ticket item now is the battery box. At full bump, the box needed to be 6" above the floor of the car to clear the rear control arms which actually works out perfect because I can mount the charger/dc-dc converter in the space underneath the box. I just got all of the main box structure cut and bent last week to start mockup.
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How much do those batts weigh?

Apologize if thats already been stated
 
Been watching. Just occurred to me - you gonna have to run the siren so that spectators know you're approaching?
 
JNHEscher said:
Been watching. Just occurred to me - you gonna have to run the siren so that spectators know you're approaching?
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At the rules meeting for our regional hillclimb group this past winter, we voted to remove the siren requirement, so no. If I compete where it is required though, I am totally creating the jetsons noise through a loud speaker
 
I'm with the rest on this posting - great work, so impressed with your design!

How are you going to cool your pack, I assume you tap those cells hard in any hill climb? Tie in with the inverter on the same line or is it different for small builds?

I built a CJ-7 full EV (short version of my full build is on this site: Jeep CJ-7 full EV conversion), your build seems like the best test bed for almost all 4x4 EV parts.

Can't wait to see what comes next!

- Patrick
 
4x4 EVC said:
I'm with the rest on this posting - great work, so impressed with your design!

How are you going to cool your pack, I assume you tap those cells hard in any hill climb? Tie in with the inverter on the same line or is it different for small builds?

I built a CJ-7 full EV (short version of my full build is on this site: Jeep CJ-7 full EV conversion), your build seems like the best test bed for almost all 4x4 EV parts.

Can't wait to see what comes next!

- Patrick
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Thanks. For the batteries, they will not be actively cooled but cell temps will be closely monitored. After discussion with AEM and others, it sounds like the short duration of hill climb racing won't be enough to have to worry too much about cooling. We will find out when it's done and driving but it does make box design and fabrication much simpler by not needing to incorporate cold plates into the package. Only the drive unit/inverter and CCU will be cooled.
 
RadialDynamics said:
Thanks. For the batteries, they will not be actively cooled but cell temps will be closely monitored. After discussion with AEM and others, it sounds like the short duration of hill climb racing won't be enough to have to worry too much about cooling. We will find out when it's done and driving but it does make box design and fabrication much simpler by not needing to incorporate cold plates into the package. Only the drive unit/inverter and CCU will be cooled.
Click to expand...
I didn't know the actual 'climb' was quick.

You know Eddy Borysewicz (from ReVolt)? He did an interview where he said he did Pikes Peek or something in his daily Mustang EVC and couldn't believe how fast he got up.

BUT, had do spend 2 hrs at the top till the Pack cooled enough so he could go down BECAUSE he needed the regen and regen heats the cells more then discharge.

[laughing, can't believe I got that sentence out!]

His was probably longer, but, something to think about.
 
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