R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 02-25-2007, 06:04 PM   #1
Tech Adept
 
Join Date: Feb 2007
Posts: 133
Default GT2 Questions

Hey Fellas,

I did a search on the forum and came up with a few options, but not many, so I was wondering if you guys could post some different steering servos (and model numbers) that are capatible with the AE GT2.

Also, with a new steering servo, does the power source need to be upgraded? Right now, I'm just using off-the-shelf Duracell batteries. And I can continue using the same radio that came with the truck, right?

Thanks, and any help is greatly appreciated!

Fred
Fred30 is offline   Reply With Quote
Old 02-25-2007, 06:10 PM   #2
Tech Master
 
Join Date: May 2005
Location: michigan
Posts: 1,678
Trader Rating: 14 (100%+)
Default

any standard size servo will fit. 90% of the servos available are standard size. An upgrade of batteries would be a great thing to do, orion 1600 marathon packs work great for me.
o.s. power is offline   Reply With Quote
Old 02-25-2007, 06:35 PM   #3
Tech Adept
 
Join Date: Feb 2007
Posts: 133
Default

What about the specs on this servo:

Torque: 85 oz/in at 6V
Speed: .15 sec/60 at 6V
Gears: metal

Compared to the stock servo:

Torque: 41 oz/in
Speed: 0.19 seconds at 60 degrees
Gears: metal

Will it be much faster / better?
Fred30 is offline   Reply With Quote
Old 02-25-2007, 07:16 PM   #4
Tech Fanatic
 
kuzo's Avatar
 
Join Date: Jul 2005
Location: Connecticut
Posts: 948
Trader Rating: 11 (100%+)
Send a message via MSN to kuzo
Default

Quote:
Originally Posted by Fred30
What about the specs on this servo:

Torque: 85 oz/in at 6V
Speed: .15 sec/60 at 6V
Gears: metal

Compared to the stock servo:

Torque: 41 oz/in
Speed: 0.19 seconds at 60 degrees
Gears: metal

Will it be much faster / better?
It would absolutely be faster and with twice the torque as long as the stock servo specs are at 6V. What is the manufacturer/model you listed?
kuzo is offline   Reply With Quote
Old 02-25-2007, 07:44 PM   #5
Tech Fanatic
 
Kevin Boyle's Avatar
 
Join Date: Aug 2005
Posts: 997
Default

I run Airtronics

94357Z ERG-VR High Speed Servo for the steering and 94731Z Contest Aircraft & Heli Servo for the throttle (sp)

Hope that helps... here is the link to their site

http://www.airtronics.net/ATX_servos.htm

Later
Kevin Boyle
Kevin Boyle is offline   Reply With Quote
Old 02-25-2007, 07:54 PM   #6
Tech Adept
 
Join Date: Feb 2007
Posts: 133
Default

Thanks for the responses, guys.

The one I listed is a JR Z590M, listed at $39.

For $10 more, I can get the Z650M:

Torque: 142 oz in @ 6V
Speed: .17 sec/60 degrees @ 6V
Gears: Metal

There's no volt specs on the stock servo, which is the AE S1903MG.

I see the torque ratings on the JR's are much higher, but the speed is only .02 faster than the stock AE, which is .19.

I don't know much about servo's, but that doesn't seem like much of a difference in how fast the transition from left to right will be. It seems like the torque rating would apply to a larger, heavier wheel.

Or, do I have this all wrong and the transition from left to right will in fact be much faster?

Thanks for any input.

Fred
Fred30 is offline   Reply With Quote
Old 02-25-2007, 08:03 PM   #7
Tech Fanatic
 
Kevin Boyle's Avatar
 
Join Date: Aug 2005
Posts: 997
Default

Fred30,

For 10th scale racing 100 to 125oz is perfect, anything more is over kill. The transit time is also key when you turn the wheel you want it to be there. I know servos are not cheap but you get what you pay for... spend a little more and you will not be disapointed.


Later
Kevin Boyle
Kevin Boyle is offline   Reply With Quote
Old 02-25-2007, 09:06 PM   #8
Tech Adept
 
Join Date: Feb 2007
Posts: 133
Default

Quote:
Originally Posted by Kevin Boyle
Fred30,

For 10th scale racing 100 to 125oz is perfect, anything more is over kill. The transit time is also key when you turn the wheel you want it to be there. I know servos are not cheap but you get what you pay for... spend a little more and you will not be disapointed.


Later
Kevin Boyle
Any recommendations? The problem is, I have no idea which manufacturers I should be looking at. Also, what kind of transit time should I be looking to upgrade to?

Also, does switching from a 20T clutch bell to a 21T have a big impact on the top-end?
Fred30 is offline   Reply With Quote
Old 02-25-2007, 09:35 PM   #9
Tech Master
 
Join Date: Jul 2005
Posts: 1,586
Trader Rating: 42 (92%+)
Default

A 21t will give more top end good if you run on an open track
with 21t you will lose some torque.

Indoors I usally run 19,20t to be able to clear technical jumps

I would only use 21 on big track

as for servo my steering and throttle are both like .06
truck reacts just like electric
icemandolmite is offline   Reply With Quote
Old 02-25-2007, 10:11 PM   #10
Tech Adept
 
Join Date: Feb 2007
Posts: 133
Default

Cool, thanks.

By the way, does anyone know if there are upgraded clutch shoes available for the GT2, perhaps aluminum?
Fred30 is offline   Reply With Quote
Old 02-25-2007, 10:45 PM   #11
Tech Master
 
Join Date: Jul 2005
Posts: 1,586
Trader Rating: 42 (92%+)
Default

you dont need aluminum, ae makes 1.1,1.0,
these springs will make your car more aggresive
I run the 1.0 springs makes car real snappy
icemandolmite is offline   Reply With Quote
Old 02-25-2007, 11:52 PM   #12
Tech Adept
 
Join Date: Feb 2007
Posts: 133
Default

I know usng a stiffer spring will make the clutch engagement snappy, but doesn't the clutch also engage later?
Fred30 is offline   Reply With Quote
Old 02-26-2007, 01:18 PM   #13
Tech Master
 
Join Date: Jul 2005
Posts: 1,586
Trader Rating: 42 (92%+)
Default

THIS IS WHY YOU NEED A FAST THROTTLE SERVO .06
my truck responds just like electric
icemandolmite is offline   Reply With Quote
Old 02-26-2007, 10:15 PM   #14
Tech Adept
 
Join Date: Feb 2007
Posts: 133
Default

Ok, cool.
Fred30 is offline   Reply With Quote
Old 02-26-2007, 10:29 PM   #15
Tech Elite
 
rezenclowd3's Avatar
 
Join Date: May 2006
Location: Solvang, CA
Posts: 2,367
Trader Rating: 17 (100%+)
Send a message via AIM to rezenclowd3
Default

I run the competiton (Losi AD2) and have installed an Airtronics 94357z for steering (~$100) and a 94737 (~$70 though now discontinued) and I say it is about perfect. For servos look into Airtronics, Futaba, JR, or KO Propo. Some people have also like the ACE brand, but Ive never seen it. If your racing, do spend more, it WILL make a difference. If you cant afford it, great servos are sold on this board quite frequently. Last, HAVE FUN!
rezenclowd3 is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
hyper7 shock questions and other questions buds302 Nitro Off-Road 1 06-11-2008 12:03 AM
B4: Kit vs RTR, Questions. BelialX13 Rookie Zone 15 02-14-2008 04:57 PM
kanai diff questions and other questions famous182 Electric Off-Road 2 02-25-2006 02:19 PM
TNX QUESTIONS chrometwanks Monster Trucks 2 02-03-2006 06:02 PM
TB questions nekmiyevo2 Electric On-Road 7 08-11-2005 09:37 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 03:35 AM.


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