3100kv on 4s

[Big House]

I upgraded the battery and body of my Super RS-4 and cannot wait to see it go. I changed the boby to a parma wedge and I am now running 4s. The wheels up 4s bench test was night and day over the 3s. I feel the foams that are there now...will not last for much longer.

[magman]

Upgrading to a higher cell count usually means more care is needed for your tires

[Big House]

I totally agree. The 3s is killing them so I know the 4s is going to be murder. I have another set on order as well as I am going to try slicks again with the new body. Down force makes an incredible difference.

[What's_nitro?]

Originally Posted by Big House

The 3s is killing them so I know the 4s is going to be murder.

Pardon me, but what's the difference???

Should be fun to watch if nothing else...

[Big House]

Is 4.2 more volts to the motor totaling more than 12000 RPM to the motor.

The first dry day it is going out.

[BL_RV0]

Originally Posted by What's_nitro?

Pardon me, but what's the difference???

Should be fun to watch if nothing else...

Killing applies to anything. Generally murder only applies to humans.

[Big House]

Here are a few runs of my Converted Super Nitro RS4. Had to switch from the road to the parking lot. I live on a military base so I am not sure how much the SP's would like me running up and down an active street. Not sure how fast but better than 60 easy.

[What's_nitro?]

What were those sparks from in the second video?

[ANGRY-ALIEN]

Originally Posted by Big House

Here are a few runs of my Converted Super Nitro RS4. Had to switch from the road to the parking lot. I live on a military base so I am not sure how much the SP's would like me running up and down an active street. Not sure how fast but better than 60 easy.

Damn that's quick... looking good..

Originally Posted by What's_nitro?

What were those sparks from in the second video?

It looks like the screws under the chassis were dragged across the asphalt as it grounded out on the bumps...

[Big House]

Yep...that is exactly it. The Parma wedge body really creates some serious down force. The lower chassis is carbon fiber and is holding up well...but the rear bulkhead screws are taking a beating. I would love to get hold to a Mamba pro and run this thing with 5s but I don't think the Medusa would like that much.

[DCastaneda]

Originally Posted by Big House

Yep...that is exactly it. The Parma wedge body really creates some serious down force. The lower chassis is carbon fiber and is holding up well...but the rear bulkhead screws are taking a beating. I would love to get hold to a Mamba pro and run this thing with 5s but I don't think the Medusa would like that much.

I ran a medusa 5900 in a ta05 on 4s without issue, 3100 on 5s will be fine

[Big House]

Originally Posted by DCastaneda

I ran a medusa 5900 in a ta05 on 4s without issue, 3100 on 5s will be fine

If I do the math right...at a near full charge of 4 volts per cell times 4 = 16 volts times 5900kv...that is an astronomical 94K rpm....that is just plain incredible...a 3100 on 5s is 65K...I think that is doable. It is fast now...could not imagine another 15K in RPM speed.

[DCastaneda]

As a rule of thumb I use 3.7v per cell and calculate another 20-25% for the medusa motors.

[Big House]

4s was not enough. I upgraded the Super Rs4 to run 6s. Using a Mamba Max Pro and 2 3s battery packed I modified my already fast rocket into something all together faster, quicker and extremely more fun. Here are a few upgrade pics and the 6s bench test. The rear wheel did not fair so well.

http://youtu.be/Wo7X3ngWJXU

[What's_nitro?]

At least everything looks well-balanced. Good luck finding traction with that much power. It'll be fun either way.