1. MBX-6 T8 1900KV, RX8 ON 4S
2. MBX-5T 1520, MMM ON 5S
3. MBX-5 ONROAD CONVERSION 1515, MMM ON 5S
4. MRX-3 ON ROAD CONVERSION 1512, MMM ON 6S
5. TEN T 2650 T8, MMP ON 3S
Are you running the normal chassis or an extended one?
When I was first running my crt.5 with regular chassis and smaller buggy size tires I had no problems with 2S and 3S on a smaller motor like a Hacker 8L.
As soon as I went to truck sized 1/10 tires I started to have heat problems - even with gearing changes. They put a heck of a lot more load on the whole drivetrain.
Also - when I went to the extended chassis I started pulling more power as well.
I found a 1509 would handle the load with minimal heat problems. Personnally I don't think a 1506 would handle the load required by the 1/10 truck tires.
“Everyone has a right to be stupid; some people just abuse the privilege.”
We've used a 1506 in a CRT .5 and the Hot Bodies 10. It's a great motor, plenty of power. I can't remember what wind 1506 we were running, (maybe that 5500 one) but we ran the LS10 on 2s and 3s, motor never got hot at all. 2s was perfect track speed and 3s was just a blast to run.
I recently got a HB GT10 myself, and I have to say that even with the much larger tires the truck is just a little lighter and much less taxing on the motor.
Feel free to give the 1506 a try but I would shoot for a 1509. Maybe a 2D @ 3300kv or a 2.5D @ 2700kv for 3S.
“Everyone has a right to be stupid; some people just abuse the privilege.”