Originally Posted by alan1467
Anyone had their VFS-1 shut down running a low turn mod on a very hot day?
I think the speedo is getting to hot but not sure?
Originally Posted by danjoy25
I seen it happen with someone running a 6turn. Only made the 2 minutes mark
Originally Posted by berger
What profile were they running, a massive amount of other factors have to be included before you can blame the speedo.
guys if you are running the older VFS-1. if you have not modified it (im sure if you modify it personally, all warranties will be void) it will shut down if the following things are done incorrectly:
1. too aggressive of a set up. the stock set up is set at 36 across. going too far below this (say 17 or 18) will definitely heat up the ESC faster.
2. incorrect gearing on the motor... this will definitely overheat the ESC and shut it down faster.
3. driving style... a driver who drives more "punched" than someone who is smoother will definitely overheat it faster.
4. if the track temp is super hot (i raced yesterday, our track temp got up to 140 deg. F.) that heat is just coming off the asphalt and into the car. this will also contribute to the esc overheating.
Here are some solutions i suggest that can help cool the esc down:
1. put a heatsink on it. steve at speedtech has one. here's the link:
2. put a fan ON TOP of the esc. the small fans work great. here's a link:
3. although the best solution would be to purchase the VFS-1 Competition. a more affordable solution would be to remove the cutoff as someone stated above. send it to Ko Propo so they can do it professionally.
4. run a more conservative drive profile
5. run a more conservative gearing
6. drive smoother
hope that helps guys.