SSSF
Member
You can use your metal chassis as cooling plate if you use a thermal pad between the engine and the chassis.
I got a small piece to test with a 5 mm height. It was trimmed down in the middle to 2.5mm because that is the distance between my motor and chassis on my kraton. This can be easily done with a knife.
Some specs: run with new 4S 6000mAh 50C continuous, 100C burst.
Pignon: 15T.
Outside temperature 23 degree C (73F).
Engine temp was 55 degreee C (131F) when lipo was almost empty, I was trying to get as mush power as possible through engine by going full trottle and full brake continuously on grass surface.
Chassis temperature was 46 degree C (111F) underneath motor and almost the complete chassis felt a bit warm, although underneath motor the hottest.
In the image you can see that I only had a part of the motor connected to the chassis, I still need to trim the piece lying behind it to have the complete motor area connected to the chassis.
Here is the type used: https://www.digikey.nl/product-detail/en/t-global-technology/TG6050-25-20-5/1168-1695-ND/3300353
I got a small piece to test with a 5 mm height. It was trimmed down in the middle to 2.5mm because that is the distance between my motor and chassis on my kraton. This can be easily done with a knife.
Some specs: run with new 4S 6000mAh 50C continuous, 100C burst.
Pignon: 15T.
Outside temperature 23 degree C (73F).
Engine temp was 55 degreee C (131F) when lipo was almost empty, I was trying to get as mush power as possible through engine by going full trottle and full brake continuously on grass surface.
Chassis temperature was 46 degree C (111F) underneath motor and almost the complete chassis felt a bit warm, although underneath motor the hottest.
In the image you can see that I only had a part of the motor connected to the chassis, I still need to trim the piece lying behind it to have the complete motor area connected to the chassis.
Here is the type used: https://www.digikey.nl/product-detail/en/t-global-technology/TG6050-25-20-5/1168-1695-ND/3300353