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rceccleston
08-01-2010, 12:21 PM
Recommend 5mm bullets minimum, however, you need an anti-spark setup with Deans.
lavi
08-01-2010, 12:23 PM
Just ordered a trex600 :) and just wondering what battery connector to use. I have spare ec3 lying around, will it handlel the current if I get a 12S setup?
I wouldnt use anything smaller then 4mm. (I use 4mm bullet).
EC5 is a reat choice.

My 12S avg current draw is 28Amp (very hard 3D) with peaks up to 80Amp (for fractions of a second)
when flying easy (sport flying) avg current is 16Amp with peaks up to 60Amp
Moby
08-01-2010, 12:50 PM
ec5 it is then ;). and btw, is there a "12s" motor that doesn't require any frame mods?
lavi
08-01-2010, 01:16 PM
The frame mod is fairly simple (if you have the tools - Dremel), you don't want to choose your motor by this factor.
I have a scorpion motor (4025-630) and I love it
minititinflyer
08-01-2010, 01:23 PM
Recommend 5mm bullets minimum, however, you need an anti-spark setup with Deans.
how you get a anti-spark setup with deans
Moby
08-01-2010, 01:33 PM
The frame mod is fairly simple (if you have the tools - Dremel), you don't want to choose your motor by this factor.
I have a scorpion motor (4025-630) and I love it

so i only need to cut the frame abit, It will fit in the same mountings and stuff?
lavi
08-01-2010, 01:40 PM
so i only need to cut the frame abit, It will fit in the same mountings and stuff?
have a look here ...
http://www.helifreak.com/showthread.php?t=143551

this is how much you'll have to cut (picture by nightflyr (http://www.helifreak.com/member.php?u=73531)):
http://www.helifreak.com/attachment.php?attachmentid=100641&d=1244316065
Moby
08-01-2010, 01:49 PM
Thanks alot, will check out that thread. Have been reading around in the power system threads, but it's easy to miss stuff :roll:. BTW, will the scorpion motor last me a long time? What's the life expectancy on a motor like this?
lavi
08-01-2010, 01:55 PM
I don't recall coming across a thread about a dead motor (regardless of the brand).
mostly its the ESC that fails.

ohhh... almost forgot - the bearings tend to fail first, and when it happens - Ceramic bearings are a good investment (~$20@Boca Bearings)
Moby
08-01-2010, 01:58 PM
what sort of pinion should i use with the 4025-630 motor?
lavi
08-01-2010, 02:05 PM
what sort of pinion should i use with the 4025-630 motor?
IMO 14T (mod0.7).
Scorpion motors comes with 5mm shaft. it will be nice (not a must though) to upgrade to 6mm shaft.
rceccleston
08-01-2010, 02:26 PM
I had approximately 400 flights on the 4025-630 / 12T with the original bearings before upgrading to the 4025-550 / 14T.

Both motors work very well when geared correctly, however, the 550 is now more efficient than the 630 with better gearing.
jrod155
08-01-2010, 04:43 PM
anybody know the horsepower this setup puts out on a 12tooth? I want to tweak my phoenix model.
Moby
08-02-2010, 12:46 AM
I had approximately 400 flights on the 4025-630 / 12T with the original bearings before upgrading to the 4025-550 / 14T.

Both motors work very well when geared correctly, however, the 550 is now more efficient than the 630 with better gearing.

where did you get that motor? I tried googling but can't find any shop that has it...
rceccleston
08-02-2010, 05:52 AM
where did you get that motor? I tried googling but can't find any shop that has it...
Compare HK40 series items (http://www.scorpionsystem.com/catalog/motors/hk40/compare/?p5=436&p6=203)
rceccleston
08-02-2010, 05:53 AM
anybody know the horsepower this setup puts out on a 12tooth? I want to tweak my phoenix model.
2700 watts = 3.62075964 hp
sawdogg73
08-02-2010, 03:09 PM
I had approximately 400 flights on the 4025-630 / 12T with the original bearings before upgrading to the 4025-550 / 14T.

Both motors work very well when geared correctly, however, the 550 is now more efficient than the 630 with better gearing.
Quick question about gear and CC 85HV. I have the 4025-630 with 13T pinion and 170T main gear. When i go to setup gov mode in the ESC it wont let me go above 1900 for head speed. Is this too low of a head speed for sport flying? I'm still waiting on my rpm sensor for the elogger.
rceccleston
08-02-2010, 03:58 PM
Quick question about gear and CC 85HV. I have the 4025-630 with 13T pinion and 170T main gear. When i go to setup gov mode in the ESC it wont let me go above 1900 for head speed. Is this too low of a head speed for sport flying? I'm still waiting on my rpm sensor for the elogger.
I would recommend tacho'ing your headspeed with your e-logger because the set rpm feature results in an over geared and an in-efficient setup with short flight times.

13T governed should be good for 2100rpm, however, 1950-2000rpm would be better suited for sport flight.
jrod155
08-02-2010, 05:46 PM
make sure you set your throttle endpoints, i was off for my first few flights, my HS was definitely a bit low. No Tach, just going by sound
lovespicyfood
08-03-2010, 01:38 AM
Hey Everyone,

I'm at the point where I'm soldering up my power system...

I'm using the 4025 Scorpion motor with the CC HV80 Ice. I can't get the ESC wires to fit into the female motor connectors provided with the Scorpion, they're too thick. Are you guys replacing the bullet connectors altogether because of this or am I missing something?

Thanks!
Pete
adroc3905
08-03-2010, 05:16 AM
Hey Everyone,

I'm at the point where I'm soldering up my power system...

I'm using the 4025 Scorpion motor with the CC HV80 Ice. I can't get the ESC wires to fit into the female motor connectors provided with the Scorpion, they're too thick. Are you guys replacing the bullet connectors altogether because of this or am I missing something?

Thanks!
Pete

As suggested by the thread starter:

http://www.readyheli.com/CC55MMBULLETS-55mm-Gold-Bullet-Connectors_p_32225.html
lovespicyfood
08-03-2010, 09:59 AM
As suggested by the thread starter:

http://www.readyheli.com/CC55MMBULLETS-55mm-Gold-Bullet-Connectors_p_32225.html

Okay, thanks! Can't believe I missed that one... I think I did all the recommended mods including, frame stiffeners with canopy lugs, metal tailboom lugs, ceramic bearings and larger shaft for motor and tail grip mod. I did the tail grip mod on my 600N and I'm anxious to see if I can turn up the gain on the GP780 I have installed...

Regards,
Pete
rceccleston
08-03-2010, 12:20 PM
Hey Everyone,

I'm at the point where I'm soldering up my power system...

I'm using the 4025 Scorpion motor with the CC HV80 Ice. I can't get the ESC wires to fit into the female motor connectors provided with the Scorpion, they're too thick. Are you guys replacing the bullet connectors altogether because of this or am I missing something?

Thanks!
Pete
:thumbup:
lovespicyfood
08-06-2010, 12:08 AM
Recommend 5mm bullets minimum, however, you need an anti-spark setup with Deans.

I installed Deans on my entire system.

Can you explain what an "anti-spark" system is? I thought you wanted the spark on Castle Escs?
rceccleston
08-06-2010, 03:31 AM
I installed Deans on my entire system.

Can you explain what an "anti-spark" system is? I thought you wanted the spark on Castle Escs?
Basically, a primary connection with an in-line resistor, where the Deans are a secondary connection between the flight packs and the esc.

This method preserves the contact surface of the male Dean.