Thanks AA,
The tires are belted with Nylon packing tape and balanced so they dont swell and work Tits.
Ashamed to say but it's a Chinese knock off of Mikes Slipperential, I bought it from a buddy of mine who purchased it last year despite my protest. He couldn't get it to work for himself so I got it for next to nothing. Seems to work ok despite a real hassle to get it tuned to work decent. I know it my heart it's junk compared to Mikes, so how long it'll last is anyones guess ? A genuine RCM unit is on my wish list.
Temps have ben great despite the the gearing, 20-25* over ambiant is the most I've gotten out of it. I ran a 6s with the same gearing and made multiple speed passes and still was only able to get 139* after 10 minutes.
The anodizing was stripped with Aluminum wheel acid, disassemble the motor and dropped it in a glass with the acid and soaked it for 5 minutes. Came out clean a s a whistle. Rinsed and blew dry with compressed air and a liberal shot of WD40 and reassembled. The acid just gets poured back into the bottle to be reused again.
The 1520 is a great motor, wish I bought several rather than just one
