Go Back   RCCrawler Forums > RCCrawler General Tech > Electronics
Loading

Notices

Thread: 3s vs 2s

Reply
 
LinkBack Thread Tools Display Modes
Old 05-29-2019, 07:56 AM   #1
Pebble Pounder
 
Join Date: Feb 2012
Location: UK
Posts: 122
Default 3s vs 2s

I'm considering upgrading my systems to 3s. I run class 1 and 2. What do you guys think, is it worth?
stormridersp is offline   Reply With Quote
Sponsored Links
Old 05-29-2019, 08:21 AM   #2
I wanna be Dave
 
Join Date: Feb 2007
Location: South FL
Posts: 3,348
Default Re: 3s vs 2s

Quote:
Originally Posted by hobbyjumper View Post
There was a whole thread about that recently, where I took the position that 2s is all you need, while another guy said try 3s and you will never go back. So I did. I was wrong, he was right.
This seems to be the case with myself and everyone else I've ever seen or read about going from 2s to 3s.
In my case I went to 3s and I kept my old 2s packs and made an adapter to run them as 4S for those times I want even more.

Sent from my LGMP450 using Tapatalk
spoo76 is offline   Reply With Quote
Old 05-29-2019, 08:23 AM   #3
I wanna be Dave
 
Join Date: Feb 2017
Location: My mothers basement
Posts: 2,128
Default Re: 3s vs 2s

Quote:
Originally Posted by hobbyjumper View Post
There was a whole thread about that recently, where I took the position that 2s is all you need, while another guy said try 3s and you will never go back. So I did. I was wrong, he was right.
While any 4 cylinder 1:1 car can get you to work, it's more fun to drive a v8 isn't it?
That's the basic difference, even if both cars are only allowed to go 60mph the v8 does it faster with more power and torque. that's 2s, vs 3s in a nutshell.

I'm happy you tried the 3s after taking the 2s stand BTW. It's good to be open to other people's ideas.

Basically going from 2s to 3s you get 33% more power from your motor then what you have now. You can't get that from changing motor turns but it doesn't stop people from trying. Best motor upgrade you can do is more voltage...
after 3s-4s the brushes start to wear kinda quick though.

Last edited by Voodoobrew; 05-29-2019 at 08:28 AM.
Voodoobrew is offline   Reply With Quote
Old 05-29-2019, 10:40 AM   #4
Newbie
 
Join Date: Jan 2019
Location: Ontario
Posts: 23
Default Re: 3s vs 2s

Quote:
Originally Posted by Voodoobrew View Post

Basically going from 2s to 3s you get 33% more power from your motor then what you have now. You can't get that from changing motor turns but it doesn't stop people from trying. Best motor upgrade you can do is more voltage...
after 3s-4s the brushes start to wear kinda quick though.

I went from 2s to 3s and won't go back. Like Voodoo said, you get more power, which gives you more speed. With that, you can now gear down back to the top speed you were at before, and use all that low ratio for greatly improved startup and low speed control, all while not sacrificing wheel speed or top speed.
KV242 is offline   Reply With Quote
Old 05-29-2019, 11:46 AM   #5
I wanna be Dave
 
Join Date: Feb 2017
Location: My mothers basement
Posts: 2,128
Default Re: 3s vs 2s

I put the 2s in for when I let other people run them, little bit easier for a novice to control them when they are slower and less power to break things. Of course when my 2s go bad I won't be replacing them, unless I make a series battery adapter to run them at 4s.

Sent from my SM-N950U using Tapatalk
Voodoobrew is offline   Reply With Quote
Old 05-30-2019, 09:03 AM   #6
owner, Holmes Hobbies LLC
 
JohnRobHolmes's Avatar
 
Join Date: Nov 2004
Location: Volt up! Gear down!
Posts: 20,290
Default Re: 3s vs 2s

My motto is volt up, gear down for a reason. Many good reasons. Do it and you will probably like it.
JohnRobHolmes is offline   Reply With Quote
Old 05-31-2019, 02:48 AM   #7
Pebble Pounder
 
Join Date: Feb 2012
Location: UK
Posts: 122
Default Re: 3s vs 2s

Quote:
Originally Posted by JohnRobHolmes View Post
My motto is volt up, gear down for a reason. Many good reasons. Do it and you will probably like it.

Ok, you guys got me convinced. Now, I'm in doubt: should I get for my heavy G2 a 540 5 slot 16T motor, or a 550 non rebuildable can?

Btw, do I need to have an external bec for my 6v servo to run 3s?

Last edited by stormridersp; 05-31-2019 at 02:50 AM.
stormridersp is offline   Reply With Quote
Old 05-31-2019, 03:04 AM   #8
I wanna be Dave
 
Join Date: Feb 2017
Location: My mothers basement
Posts: 2,128
Default Re: 3s vs 2s

The 550 trailmaster 21t is one of my favorites. Pretty sure the bigger motor will beat out a smaller motor every time. But I could be wrong. Price vs performance tho, nothing beats the HH 21t trailmaster 550.

Sent from my SM-N950U using Tapatalk
Voodoobrew is offline   Reply With Quote
Old 05-31-2019, 04:21 AM   #9
Quarry Creeper
 
Join Date: Nov 2015
Location: US
Posts: 456
Default Re: 3s vs 2s

Agreed. I run a 21t 550 in 3 rigs,. It just feels good for a brushed set up to me
odomandr is offline   Reply With Quote
Old 05-31-2019, 08:45 AM   #10
I wanna be Dave
 
Join Date: Feb 2017
Location: My mothers basement
Posts: 2,128
Default Re: 3s vs 2s

Quote:
Originally Posted by stormridersp View Post
Btw, do I need to have an external bec for my 6v servo to run 3s?
Depends on your esc and servo. Generally it dosent matter because the esc has an internal bec that reduces the voltage to 6v or 7.2v so the servo has no idea you upgraded to 3s.

Sent from my SM-N950U using Tapatalk
Voodoobrew is offline   Reply With Quote
Reply



Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 02:17 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.
Copyright 2004-2014 RCCrawler.com