Talk 1520 - your experiences

[ANGRY-ALIEN]

Originally Posted by nuz69

20-25 packs per week since 7-8 months. indeed, it's a used motor, but it still works really fine... Moreover the bearing has not a lot of play compared to a new bearing...

Gosh, this motor can take some serious punishment and still dishes out a healthy serving of real power ... I bashed mine hard on Sunday and it was oodles of fun!!
I put some slicks (spent bow-ties) on it, filled the CD with some 50k oil... pulling full throttle was pure nonsense... the front end would not stay on the ground... even at speed,
a little jerk of the throttle lifted the front into a rolling wheelie with no effort... I'll be removing some of the oil or reducing the punch a little, because there is just 'too much'
torque to handle

Originally Posted by Bondonutz

I've installed my 1520 in my Old school Lightning Stadium Pro-2, running 5s and lovin' it.

Geared a little high but it's staying cool and running great, Happy Happy


Differential Ratio: 4.3
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 48
Pinion Tooth Count: 23
Total Voltage: 18.50
Motor KV: 1600
Tire Diameter (inches): 5.25
Tire Ballooning (inches): .15
Motor Current Draw: 0
Motor Coil Resistance: 0
Spur/Pinion Ratio: 2.09 : 1
Total Ratio: 8.97391 : 1
Tire Circumference (inches): 17.44 inches (442.87 mm)
Rollout: 1.94:1
Total Motor Speed: 29600 RPM
Vehicle Speed: 54.46 mph (87.48 km/h)
Effective KV Value: 1600
KT constant: 0.85 oz-in/A
Motor Torque: Amperage not specified...
Final Torque: Amperage not specified...
Final Power: Amperage not specified...

That's looking really nice Bondonutz, love what you've done with the can... how did you remove the anodizing? Oven cleaner?... Have you recorded temps?
what kind of setup are you using with that diff... at 23/48, those tyres should swell up real quick... Post some vids!

Alien

[Bondonutz]

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

[ANGRY-ALIEN]

Originally Posted by Bondonutz

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

Hmmm... interesting approach on the stripping process... the temps look good too man... how much does that truggy weigh?