Kraton Motor Mount 56 series fits?

[dure16]

I’m sure it is down low, never going to get peak kV rpm on a basher with low voltage.

There is a huge power difference between the 5687 and the 4985 you mentioned, at any speed, regardless of peak RPM.

 

[dure16]

What pinion I need for the 5687?

Look up a speed calculator. Do you have an iPhone?

https://apps.apple.com/app/id898565895

Some things to note about that motor:
1. It’s too heavy like I mentioned before
2. The shaft is 8mm
3. The shaft is too long and has to be cut shorter

 

[Jluther@becoinc]

I can’t agree there. That motor is beast on 6S. It puts the 4985 to shame, which isn’t surprising due to the size difference. And gearing the 5687 properly is easy enough.

What gearing do you run with the 1100? What kind of speeds are you getting? I’ve thought about that motor myself.
I like ridiculous power!

 

[dure16]

What gearing do you run with the 1100? What kind of speeds are you getting? I’ve thought about that motor myself.
I like ridiculous power!

I gear my Kraton EXB for about 70mph on 6S and switch motors every few months. I like trying new setups.

The current motor is a Castle 1721 1260kv geared 24/44. I’d gear the 1100kv 27/44 or similar.

 

[saar0511]

I’ll try 24/50 and see how is it,
Maybe I’ll order a smaller spur sometime

 

[saar0511]

Hi everyone,
So today was the first test on 6s with 24/50 and it’s a beast.

Blow up the tires, what do you all recommend?

The suspension feels really soft, What oil do you put in the shocks?

 

[Garcbomber]

Fireteam springs and 100+ wt shock oil or change piston venting. You'll need to get some heavier silicone in the diffs if you want tires to last

 

[saar0511]

Fireteam springs and 100+ wt shock oil or change piston venting. You'll need to get some heavier silicone in the diffs if you want tires to last

can you drop a link of a silicone that will be good for me,

There’s a 85mm and 95mm spring for the fireteam ARA330780, ARA330782.
which one to buy or one is front and one is rear?

 

[Garcbomber]

100k

can you drop a link of a silicone that will be good for me,

There’s a 85mm and 95mm spring for the fireteam ARA330780, ARA330782.
which one to buy or one is front and one is rear?

Longer is rear.

I’d recommend 100K front and rear, 500k center to start. Brand isn’t important but I use Team.

 

[dure16]

can you drop a link of a silicone that will be good for me,

There’s a 85mm and 95mm spring for the fireteam ARA330780, ARA330782.
which one to buy or one is front and one is rear?

60K front
30K rear
500k center

Front and rear springs.

https://www.amainhobbies.com/team-associated-silicone-differential-fluid-2oz-4000cst-asc5444/p453215

 

[saar0511]

Hi everyone,
So I made my first test with 29/50 with trencher 3.8 tires.
it run great maybe I need a stronger servo,
The temperature all around was in the low 50 that sound good or I need a fan?
Planning on replacing the spur to 44 and maybe in the mean while I’ll put a 31 or 32 pinion.

https://mega.nz/folder/xlVVHbLB#VzJHdIFFd35dL4Z8rHbHig

 

[saar0511]

Made another run with full battery’s and the motor reached around mid 70 celsius is that ok?

 

[dure16]

Made another run with full battery’s and the motor reached around mid 70 celsius is that ok?

That’s a little warm but not catastrophic. Motor damage starts at about 180F.

 

[saar0511]

That’s a little warm but not catastrophic. Motor damage starts at about 180F.

what can i change to make it cooler?

 

[dure16]

what can i change to make it cooler?

Gear down by installing a smaller pinion.

Improve cooling by adding/upgrading motor fans.

 

[saar0511]

Gear down by installing a smaller pinion.

Improve cooling by adding/upgrading motor fans.

can you link me a good motor fan for 5687 please?

i thought gearing up the pinion and gearing down the spur is less stress for the motor.

 

[dure16]

can you link me a good motor fan for 5687 please?

i thought gearing up the pinion and gearing down the spur is less stress for the motor.

Pinion up, spur down, equals more speed and therefore more motor stress/heat.

Pinion down, spur up, equals less speed and therefore less motor stress/heat.

https://www.radiocontrolpower.com/p...ling-bracket-40mm-x-40mm-cooling-fans-hv-8-4v

 

[saar0511]

Tha

Pinion up, spur down, equals more speed and therefore more motor stress/heat.

Pinion down, spur up, equals less speed and therefore less motor stress/heat.

https://www.radiocontrolpower.com/product-page/rcp-xtreme-cool-brushless-motor-cooling-bracket-40mm-x-40mm-cooling-fans-hv-8-4

Pinion up, spur down, equals more speed and therefore more motor stress/heat.

Pinion down, spur up, equals less speed and therefore less motor stress/heat.

https://www.radiocontrolpower.com/p...ling-bracket-40mm-x-40mm-cooling-fans-hv-8-4v

Thank you I went with the one with the heat sink.
https://www.ebay.com/itm/1257860514...ar=426776957187&widget_ver=artemis&media=COPY

 

[dure16]

Tha

Thank you I went with the one with the heat sink.
https://www.ebay.com/itm/1257860514...ar=426776957187&widget_ver=artemis&media=COPY

That's the wrong move IMO. A heat sink like that will block the airflow on the motor's built-in cooling fins.

I would only use that type of heat sink on a smooth-can motor.

 

[saar0511]

That's the wrong move IMO. A heat sink like that will block the airflow on the motor's built-in cooling fins.

I would only use that type of heat sink on a smooth-can motor.

Ok I thought It will better because of more surface area, I’ll order exactly what you linked