Talk 1520 - your experiences

[JThiessen]

Originally Posted by Jahay

The difference between me and others is that my truck actually gets full traction and does not wheelie easily as the motor is up front.
I have 0% Punch because i love having full power.
My truck at the moment weighs 14lbs and geared for 52mph on 6s.

This is probably the punch line. Your at that fine line where something's gotta give. In you case, its been the pinions. If you do in fact find a pinion that's strong enough to not strip, you may end up with issues somewhere else. Shear strength is a factor of material strength and cross sectional area - I haven't gone back in the the threads to look - are you running mod1 or mod.8? You probably need to be in Mod1 if your not already.

[pinkpanda3310]

I have a 1520 in an rc8t with no punch control and it's causing the screws on the spur to come loose. The first I noticed was when one of the screws came out far enough to scratch up the rcm motor mount So I put a dab of lock tight on the screws and refitted them. That hasn't fixed the problem so I was wondering if an alu diff cup would help?

[Jahay]

loc tite does not work with plastic diff cups.. if you can and its available, you should try and run the alloy diff cup! will allow no flex within the cup, and loctite will actually work

[pinkpanda3310]

That's what I was thinking, thanks Jahay.

[pinkpanda3310]

So I let the plastic centre diff be killed I was just to lazy to change it before it died Did a good job too, melted the gears into the cup. I had to cut the cup to get the gears out.

I had the nova diff cups here waiting for the event. From my understanding thicker oils work the gears harder. So I made another diff using only the outdrives from the old one, nova cup, new inners and 120k wt oil. Took it for a bash out the front of my house and loved it The wheelies were long and low. Worked the drivetrain hard. Then unexpectadly the car flipped on it's lid. Didn't think much of it first time round but it quickly became apparent the centre diff was locked within 1 battery pack

Before you say anythng - Yes it was shimmed properly, I double checked myself on that knowing what would happen if I didn't. When I took it out again the screws in the cup on weren't tight. They were all the way in but not nipped up (yes, I used locktite) and the diff spooled one way but not the other. The internal gears showed some wear but I thought I could get more use out of them.

I put an extra shim in and re-assembled it. I also cut some slots in the screws so I can crank on them a bit more (I hate hex keys for stuff like this). I haven't used it yet but I think I need to rebuild it (again) cause it is still very notchy one way. I'm thinkng to just flip the internal gears so it spools nicely on acceleration.

If problems persist I might have to stick with lighter oils. Or would an ofna spider fit in an rc8t?

[ANGRY-ALIEN]

Damn... I have noticed the temps in the ofna spider i'm using spike up pretty quickly during the runs... I normally see numbers around 150° to the higher 160s...
the diffs seem to be working really hard while transferring all that power from the cc1520...

It's been some time since my last update... Ive been using some Novak pinion for a little while now and I must say, I impressed... they have performed nicely...
the cogs only have a polished effect on them... nothing unexpected... So I guess I'll be keeping them... I finally got some vids of the truck with the 1520 powering it... see the below link...

| flm maxx | carbon fiber | ofna spider | cc 1520 1Y 1600kv l 1 ----- | flm maxx | carbon fiber | ofna spider | cc 1520 1Y 1600kv l 2

Alien

[Klausen]

Will the 1520 fit in a Revo 3,3 with Mikes motormount?

[Bondonutz]

I dont think so, When I had mine the 1515 was close to the arms and the 1520 is a mile longer.

[Klausen]

I will throw it in the Gorilla then.

Will it be ok to run with a Tekin RX8 or Novak HV esc? I now it is not sensored, but without the sensorcabel?

Or do I need a MMM esc.

[Arct1k]

Go for the RX8 rather than the HV... No need to get a MMM if you hve have an RX8 handy

[Klausen]

Perfect thanks.

[Emaxx_Quebec]

Is there a possible mistake with the KV written ON the motor?
My order came in today and I notice that the 1520 is quoted 1600 kv on the box and 1520 1y 1500kv ON the motor

I am alone with this situation?

Fred

[nuz69]

No you are not, a friend of mine had the case, but castle glue a sticker on the box saying it's an mistake, the motor is a 1600Kv, so don't worry ;)

[Emaxx_Quebec]

Nice then.

Thganks a lot

Fred

[bruce750i]

yep I got one also, I call it my custom wound 1520.