Castle 5th scale

[lincpimp]

Also, could we have a dimension for the recess in the battery "pad"? Just wondering what is the maxx size? I see that you list 8s 5000mah battery in the description, so I am guessing most of those avaialbe will fit?

Looks good, and a great deal on the combo. I am now looking for a baja roller...

[Riko]

Originally Posted by lincpimp

Also, could we have a dimension for the recess in the battery "pad"? Just wondering what is the maxx size? I see that you list 8s 5000mah battery in the description, so I am guessing most of those avaialbe will fit?

Looks good, and a great deal on the combo. I am now looking for a baja roller...

I mailed Arct1k that used the RCM conversion kit and the kit has a battery tray. I asked if 2 4s 6500 mah lipo's from Hyperion would fit, and they would fit....

Dimensions for 1 6500mah hyperion in mm: 160 length x 47 width x 46.6 height.
Arc1k used a Maxamp 6500mah lipo with 51mm for height...and 2 of them fit well with the battery tray kit.

So anything with a smaller mah will have smaller dimensions, and thus I suppose they would fit since the Castle conversion kit has no tray! ;)

[DrKnow65]

Riko, keep in mind that those dimensions don't include where the wires come out of the packs. 8 gauge wires aren't thin :-)

[Riko]

hmm that is true :)....however I got pictures of the 2 6500 mah packs IN the baja with the whole combo....if you want me to forward the message, pm me ;)

On the picture the wires stick out from the top in the open air, so it doenst actually has an influence on the dimensions so it seems

This may be a dumb question but what is the lowest voltage you can run these on.

For instance could i run this on a 2s, 3s, 4s, etc. up to 8s lipo.

Thanks,
B-M

[Arct1k]

2s up but not in a baja. :)

[Thomas Porfert]

To add to what Arct1k said; the ESC itself can run down to a 2s, but it wouldn't be appropriate for a 1/5th scale vehicle. For one, the RPM would be so low on an appropriate motor, the truck would barely move. And if you did get any decent speed by changing the gearing or motor kv, the amp draw would be far too much for all of the components to handle.

By going up on voltage you can produce the same amount of wattage and with a lower amp draw. As an example, a motor that is pulling 2500 watts on an 8s LiPo, would equate to approximately 84 amps. The same amount of wattage on a 4s setup would be approximately 168 amps. This is calculated as Watts = Voltages times Amperage. So 2500 watts divided by 29.6 volts (8s) = 84 amps; and 2500 watts divided by 14.8 volts (4s) = 168 amps. Higher amp draw increases heat, wear on the batteries and increases the chances of over-stressing the motor, ESC and/or batteries.

I would only recommend a 6-8s setup for the Mamba XL and 2028 on a Baja type vehicle.

Probs should've mentioned that i am planning on running this in a XXL with a CC 1520 motor on 8s for some fun but mainly it'll be 4s lipo for me.

I just like to use massively overkill esc's in my cars. I usually get it set up with a normal esc then go for overkill.

[Knez]

I too intend to use 1520 and Mabma XL esc in my Flux XXL size.
As MMM V3 keeps burning up on 6S.

[padrino]

Patrick,

Are you currently offering the 8mm bullets used with the XL kit? I don't see them on the site so I thought I would check to see if they will be coming soon? I wanted them for my batteries to make sure the connectors aren't a bottle neck, if they aren't available yet what do you recommend? Thanks

[Arct1k]

6.5mm is fine... The avg amp draw is very reasonable...

[Thomas Porfert]

Originally Posted by padrino

Patrick,

Are you currently offering the 8mm bullets used with the XL kit? I don't see them on the site so I thought I would check to see if they will be coming soon? I wanted them for my batteries to make sure the connectors aren't a bottle neck, if they aren't available yet what do you recommend? Thanks

8mm bullets should be available very shortly; MAP will be approximately $7.60 for 3 male and 3 female. Arct1k is right, 6.5mm will handle the current just fine. The biggest challenge is getting the 8 gauge battery wire soldered to the 6.5mm bullets; it's quite a tight fit and some shaving is generally required.

Thomas Porfert
Tech Support
Castle Creations

I was just wondering. I know Patrick said that you wont be able to use the MMMXL HV on 12S with motor brakes but what about if the MMMXL HV was to be used in a 1/8th on-road application with a really low KV motor? Possible or would I still be limited to 10S?????

[Riko]

Originally Posted by Arct1k

6.5mm is fine... The avg amp draw is very reasonable...

I read on a board that you would have to modify the bullets to make the thick cable fit inside the 6.5mm bullets?
So for that matter a 8mm bullet would be easier to use, is this correct?


edit: Thomas Porfert answerd my question perfectly and I saw it only afterwards :)

Just a small update, my E-Baja is built and I test drove it tonight, and all I can say is WOW, great job Castle on this insane combo. My two 4s batteries haven't arrived yet due to USPS issues (I'm cursed) but I ran it in front of my apartment on 6s and I didn't even have enough room to get to full speed! I have the brake set to 25% and its just about right for me, the brakes on this thing are crazy good.