R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro Off-Road

Reply
 
Thread Tools Search this Thread
Old 05-09-2009, 05:11 PM   #1
Tech Apprentice
 
TNR27's Avatar
 
Join Date: Aug 2008
Location: Ottawa, Ontario, Canada
Posts: 99
Default Servo specs/requirements

Ok Guys I know this has been probably debated many times before, but. What do you feel is enough torque for steering. The way I see it is if your servo can overcome your servo saver then you don't need any more torque. I feel the fastest speed with enough torque to overcome your servo saver would be more than enough. Some say that speed is not as critical as torque some say the opposite. What torque and speed specs do you feel is enough? before it becomes overkill. What do you feel is needed for throttle/brake?
TNR27 is offline   Reply With Quote
Old 05-09-2009, 05:26 PM   #2
Tech Elite
 
HaulinBass's Avatar
 
Join Date: Dec 2004
Location: valleyview alberta canada
Posts: 2,114
Trader Rating: 8 (100%+)
Default

as long as you steering can stay at full lock under full throttle you have enough torque IMO
HaulinBass is offline   Reply With Quote
Old 05-09-2009, 05:37 PM   #3
Tech Elite
 
BSchorr's Avatar
R/C Tech Elite Subscriber
 
Join Date: Jun 2004
Location: Sioux Falls, SD
Posts: 4,819
Trader Rating: 92 (100%+)
Send a message via AIM to BSchorr Send a message via Yahoo to BSchorr Send a message via Skype™ to BSchorr
Default

I run a servo that has be best torque/speed... Airtronics 94358... 200oz in at .10

(There is a new servo of mine. AIR 94359-Same specs.. Just an aluminum heatsink.

When servos get high in torque, then they fall off in speed. And reversed.

Here some some.

Futaba BLS351-217oz in at .13
Futaba BLS352-250oz in at .15
Futaba BLS451-147oz in at .10
Futaba BLS452-194oz in at .14
Futaba BLS253-147oz in at .10
Futaba BLS252-176oz in at .13

KO PDS-2367ICS-160oz in at .10
KO PDS-2368ICS-194oz in at .15
KO PDS-2386ICS-222oz in at .17

I like fast servo, it just imputs the steering response faster if i need to make a late turn or w/e. Its also nice to turn when and how fast depending on how fast your are on teh remote.

But yes, over come the servo saver is the 1st step, and servo staying at full lock in turns.. which also can depend on how tight your servo saver is also.
__________________
TLR ~ MaClan ~ Hobbywing ~ Futaba ~ Proline ~ Werks Racing ~ Genesis R/C Products ~ Mr. Scrubbles ~ First Premier Satellites
BSchorr is offline   Reply With Quote
Old 05-09-2009, 06:49 PM   #4
Tech Fanatic
 
Tree's Avatar
 
Join Date: May 2006
Location: Murrieta, California
Posts: 839
Trader Rating: 8 (100%+)
Send a message via ICQ to Tree
Default

I say get the servo with the most torque and speed that your budget allows. Personally I like the Hitec 79XX series of titanium servos. They have the best warranty in the business. I will not use anything else.
__________________
Team Holy Rollers
HiTec Servos
"N-Tune" Nitro Engine Tuning Dials
Tree is offline   Reply With Quote
Old 05-10-2009, 06:13 AM   #5
Tech Fanatic
 
r1harper's Avatar
 
Join Date: Nov 2003
Location: purvis, ms
Posts: 968
Trader Rating: 24 (100%+)
Default

Jr is one of my favorites..a 3 year warranty and the service is top notch..check this one out..fast and strong...you pay for what you get
http://www.carolinasrc.com/Webstore/...idproduct=6101
__________________
TEAM AKA-RCAMERICA- Novarossi, Fusion Motorsports, W.E.D Custom Paint-Byron's Fuel - Blue Groove


JESUS SAVES, WESLEY
r1harper is offline   Reply With Quote
Old 05-10-2009, 07:13 AM   #6
Tech Master
 
Chill_Will's Avatar
 
Join Date: Sep 2007
Location: Flo-Town, N.W. Alabama
Posts: 1,431
Trader Rating: 32 (100%+)
Default

This is what I use on my throttle/brake

http://www.carolinasrc.com/Webstore/...idproduct=7457
__________________
A-Train racing (Woooooo Wooooo!!)
Chill_Will is offline   Reply With Quote
Old 05-10-2009, 07:48 AM   #7
Tech Apprentice
 
TNR27's Avatar
 
Join Date: Aug 2008
Location: Ottawa, Ontario, Canada
Posts: 99
Default

Quote:
Originally Posted by r1harper View Post
Jr is one of my favorites..a 3 year warranty and the service is top notch..check this one out..fast and strong...you pay for what you get
http://www.carolinasrc.com/Webstore/...idproduct=6101
To me you seem to be sacrificing speed for unusable torque, this was what I was trying to justify in head. Is their a torque limit for steering before it becomes a waist because of the servo saver giving way at a certain load? If so what roughly is that limit? Once this is determined I would then look for a servo with that torque spec with the fastest speed and reliability.
TNR27 is offline   Reply With Quote
Old 05-10-2009, 07:57 AM   #8
Tech Fanatic
 
r1harper's Avatar
 
Join Date: Nov 2003
Location: purvis, ms
Posts: 968
Trader Rating: 24 (100%+)
Default

it is digital the .15 is way faster ..feels more like an analog .10 as for the torque it is there you can always turn the dual rate down or whatever you want.. in my opinion having alot of torque puts less strain on the servo. on a buggy i would not go less then 200,and on the truck i feel better with what the JR puts out. it is what they are designed to do.
__________________
TEAM AKA-RCAMERICA- Novarossi, Fusion Motorsports, W.E.D Custom Paint-Byron's Fuel - Blue Groove


JESUS SAVES, WESLEY
r1harper is offline   Reply With Quote
Old 05-10-2009, 08:30 AM   #9
Tech Lord
 
Integra's Avatar
 
Join Date: Dec 2006
Posts: 12,482
Trader Rating: 8 (100%+)
Send a message via MSN to Integra
Default

No such thing as overkill on Tq.
__________________
TNS Driver - Radio Post - Blue Groove Apparel - Team Panther - Hitec - Losi - W.E.D. Paint - Clockwork Fuel - Competition Heat - SUMO Racing - Tekin - Team Terribles - M2C Racing - Matrix Concepts - Kal Gard - BuKu Power - DE Racing -
Integra is offline   Reply With Quote
Old 05-11-2009, 07:37 PM   #10
Tech Apprentice
 
TNR27's Avatar
 
Join Date: Aug 2008
Location: Ottawa, Ontario, Canada
Posts: 99
Default

Quote:
Originally Posted by Integra View Post
No such thing as overkill on Tq.
It can be if you sacrifice too much speed.
TNR27 is offline   Reply With Quote
Old 05-11-2009, 08:34 PM   #11
Tech Lord
 
Integra's Avatar
 
Join Date: Dec 2006
Posts: 12,482
Trader Rating: 8 (100%+)
Send a message via MSN to Integra
Default

Quote:
Originally Posted by TNR27 View Post
It can be if you sacrifice too much speed.


anything under .16 is more then acceptable.
__________________
TNS Driver - Radio Post - Blue Groove Apparel - Team Panther - Hitec - Losi - W.E.D. Paint - Clockwork Fuel - Competition Heat - SUMO Racing - Tekin - Team Terribles - M2C Racing - Matrix Concepts - Kal Gard - BuKu Power - DE Racing -
Integra is offline   Reply With Quote
Old 05-11-2009, 08:45 PM   #12
Tech Elite
 
Scottmisfits's Avatar
 
Join Date: Jun 2004
Posts: 3,104
Trader Rating: 7 (100%+)
Default

I am using the Futaba BLS 451's in buggy and the BLS 351's in truggy. In throttle I take vehicle weight in to consideration. I like the brakes to grab and hold nice and strong. In the buggy, you don't need a lot but more than you would in a truggy. I probably have gone overkill in the truggy but if it has it, and you don't use all the torque, I think it'll end up being easier on them which will give you more life. I do think there is overkill in both ways. You don't need anything like the one Airtonics servo of a 0.06 transit. For me, I like to find the 0.10 mark in the buggy and .13 in truggy. 150in/oz for buggy and 200in/oz for truggy.
Scottmisfits is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
1/12 forum ovalnator Electric On-Road 45705 08-13-2017 01:43 AM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 08:22 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net