Keeping it cool - DEX410

[jo90]

Very happy with the DEX410 but have one slight issue when it comes to airflow to the electrics.

Im running a Tekin RS with a SP 6.5 V3.0 . I was finding the speedo was getting way to hot, to the point that the car started to cog, possibly almost at thermal shutdown.

I was running the Tekin on Dual mode, 5% boost and the timing fully retarded on the motor. Current limit set to 40%. Gearing was a 22/87t 48dp.

I know the RS is meant to be able to run down to a 5.5 but I will be likely switching this for the RSPro in my DEX210. However I still feel once we get out in the (I say this with tounge in cheek) summer, the car is going to run to hot.

So, how have those who have DEX410's running Tekin speedo's managed to keep things cool ?

I do have a high power 30mm fan to install that could slot in front of the speedo but i haven't seen that many who do this.

I have also cut holes in the airscoops on the shell to try and get some air into the body.

this is the current wiring on the car



I believe if i move the switch to a new location a fan can slide in there. I can drill through the side pod and countersink a small M3x10mm to hold the fan in place.

Any help though on what you have done will be appreciated, possibly if you have pics of your Tekin install also that would be great

cheers

[jimarea51]

Hi Jo90...

I've been runing the TEkin RS Pro in my Durango 410 for a couple of years now, I've attached a couple of pictures to show how i have it installed...

I believe that the solder posts aslo double up as the heatsinks, so direct the cooling fan at this area will work best at keeping things cool...

I'm runing a HPI 6.5 geared 23/87 and temps are usually ok outdoors during the 'Summer months'..

Hope that helps...

JIm DiXon

[jo90]

Cheers for this, and the pics. I think in that case I will swap the speedo's over and run the Pro in the 4wd and spin it round so that the fan works directly on the posts (aware they where the heatsink and to be honest should really have run it this way to get air to them)

cheers for your help !

[kartstuffer]

I have run a Tekin rs pro with a 6.5 tekin for summer outdoors and winter indoors now with no heay problems .Running sensored mode 10deg motor timing and basically the same settings as Kev in his Kyosho. at 23/ 87.

[big_boss]

Hi
I ran the rs pro/6.5 orion on sensorless only with boost and found this too hot for my liking (or the speedo or the motor). So I reverted back to dual mode and the car is much better now, no over heating just warm to the touch after a full six min run. I am geared 87/20 and find it plenty fast.If you run dual mode my understanding is that the boost doesn't apply.
cheers

[fil9144]

i noticed under craigs car hes cut some of the chassi out were the motor sits which iam thinking of trying on a spare chassi and see how much it helps but pretty sure hes running it with hole for that reason