Durango Dex410 V4 gearing

[Scotty415]

I have a question about the dex410 v4 gearing. There is a few of us running this car with a speed passion pro 1.1 and 6.5t motor on a 87 spur and 20t pinion. The problem we are all having is the esc is thermaling in under 5 minutes can anyone suggest what gearing I should be using?

The tracks range from small indoor carpet tracks to outdoor astro tracks like Kidderminster and Telford.

Any help would be greatly appreciated

[alex97]

Gear down the pinion a bit or make some vent holes in the body.

[charlesk]

Does the esc actually gets hot?
Sp thermal protection is notoriously hit and miss and most on a 4wd end up disabling it.
Check your temps at the end of a run with a temp gun, and you'll probably find they aren't as hit as the esc thinks. If so switch tp off. That's what I ended up doing with every sp esc on a 4wd.
Offcourse additional cooling will help but it will also bring dirt/water in the car...
On the v4 20t on a 6.5t the pinion isn't big, I think I was @ 22t outdoors.

[Scotty415]

Hi Mate,

yes the esc is around 55 > 60c I have spoken to some who as said to put holes in the shell to allow more airflow in the car which makes sense. Have you upgraded the standard fan ?

[charlesk]

55c isn't hot. The temp protection is supposed to kick in above 95c
I never had to upgrade the stock fan. Tbh I have moved on from SP now but never had any issues.
The main issue with temp control in the 410 is lack of space, the v4 is a bit better with its shell and drivetrain but everything is still tight.
Airflow will help a bit and no harm in trying it, but suspect it won't do enough...

[/tobys]

i would guess 22 or 23 would be about right for an outdoor track with that motor. geared too low and it can get hot...