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steering servos upgrade

Old 04-24-2005, 05:40 PM
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dryvr
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Default steering servos upgrade

I raced my LST for the first time last night. I wasn't happy with the steering servos transit speeds or turning radius. Upgrading the steering servos will speed up transit speed and increase holding power (torque) right? I'm considering doing the steering mod to get a tighter turning radius. What are some of you doing to improve your steering? What servos seem to be the best choice for the lst? I'm considering getting some airtronics 358's as that servo rocks in my x1cr. Thanks in advance.
Old 04-24-2005, 05:44 PM
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LstRacer76
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Default RE: steering servos upgrade

i replaced mine with two jr 650s that i had leftover from offroad electric racing and there was a great improvement also check that your radio is set properly
Old 04-24-2005, 05:52 PM
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Default RE: steering servos upgrade

LSTZR, what’s the steering mod you refer to? Can you post a link please?
Old 04-24-2005, 09:24 PM
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mikewoodkozar
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Default RE: steering servos upgrade

i have two jr ds8611's putting out 520oz of torque. They are mated to modified monster GT servo savers. This setup kicks but at the race track.
Old 04-24-2005, 09:38 PM
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dryvr
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Default RE: steering servos upgrade

This steering mod...


--------------------------------------------------------------------------------

Some of you may know that a while back I started a thread about steering, upgrading the servos, bell cranks and so on were talked about.

So.......I bought the Dynamite bell cranks to upgrade my steering and after some use, I bent/bowed the Dynamite connecting rod
It was when I took it apart to fix it, when I found this "problem" with the tie-rod ends hitting the diffs and I thought, WOW, I found a good mod that I can do that will give the truck a tighter turning radius

To see for yourself,
If you look at the steering bell cranks & tie-rod area on a stock truck, you will see that when fully turned, the tie-rod ends will hit the diff housing, limiting your turning ability. You might also see that the spindle and carrier can actually turn more if it wasnt for the tie-rods hitting the diffs.

So, I made my own bell crank connecting rod/plate out of aluminum flat stock that was longer then the Dynamite and stock length connecting rods.
All I had to do was adjust my tie-rods to pull the wheels back into alignment and what do you know, it turned MUCH sharper!
I made it just the right length so when fully turned, the spindle arms just touch the carriers and thats as far as the truck will ever turn.

Anyway, after one night of racing, I bent/bowed this connecting rod just like the Dynamite one, and the bolt holes that connect it to the bell cranks were getting elongated, making the steering sloppy again but it still turned good.

I then put back the "fixed" Dynamite one until I could come up with something else that would last, stay tight and not get sloppy via the elongated holes.

So....I also found a great deal on some Hitec HS-5945MG digital high torque servos, used for $100 for both!
http://www.servocity.com/html/hs-594...al_torque.html

As I replace the servos, I figured I give my mod another try.
I made the same length connecting rod as before, but this time I made it out of stainless steel!
Now it has lasted for 1/2 gallon and still working great, no bending/bowing or elongated holes, and turns nice and sharp!
The addition of these servos also made it much stronger and faster turning. Its like whole different truck now, it took me about 1 tank to get used to the new feel at the track!
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Old 04-24-2005, 09:40 PM
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dryvr
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Default RE: steering servos upgrade

RamSavageLST's Steering mod
Old 04-25-2005, 05:13 AM
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Default RE: steering servos upgrade

Many thanks for the information, much appreciated[8D]
Old 04-26-2005, 06:57 PM
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Default RE: steering servos upgrade

I've been searching for servos to upgrade the lst's stock steering servos. Here's what I've found so far. *LST stock steering servo

BRAND/SERVO TORQUE SPEED V
*JR/Z590 85 .15 6
AIRTRONICS/94358 200 .10 6
AIRTRONICS/94357 125 .07 6
AIRTRONICS/94757 115 .07 6 DIG.
AIRTRONICS/94758 115 .06 6 DIG.
HITEC/HS925MG 107 .09 6
HITEC/HS945MG 153 .12 6
HITEC/HS5925MG 128 .08 6 DIG.
HITEC/HS5945MG 180 .13 6 DIG.
HITEC/HS5996TG 111 .10 6 TI-GEAR.
HITEC/HS6965HB 111 .08 6

I'm considering the airtronics 94357. I think the increase in torque is more than adequate and the increase in transit speed is what I'm looking for. What do you think?
Old 04-27-2005, 10:03 AM
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kevinb456
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Default RE: steering servos upgrade

personally im getting two 195oz bluebird 630MG servos (0.13s). im also getting a single bluebird 631MG servo for throttle 100oz 0.08s. these servos are great value.
Old 04-27-2005, 10:20 AM
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Default RE: steering servos upgrade

kevinb456, do you have a bluebird link that I can research their servos on? Thanks.
Old 04-27-2005, 12:24 PM
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dOWa423
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Default RE: steering servos upgrade


ORIGINAL: kevinb456

personally im getting two 195oz bluebird 630MG servos (0.13s). im also getting a single bluebird 631MG servo for throttle 100oz 0.08s. these servos are great value.
I also just recieved the Blue Bird Servos. Here is the links to them. They are a great value. I got mine from Nitrohouse for little more $.

http://slickzero.com/Product%20Charts/Electronics.htm
http://nitrohouse.com/images/Blue-Bird-1.2.jpg
http://nitrohouse.com/acces,_servos.htm


Old 04-27-2005, 01:29 PM
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Default RE: steering servos upgrade

Thanks for the help guys
Old 05-06-2005, 02:51 PM
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Default RE: steering servos upgrade

how are them 630mg, blue bird servos holding up? good price for torque. any failures?
Old 05-06-2005, 02:58 PM
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Default RE: steering servos upgrade

mine are working great probably twice as good as stock with the mgt servo savers. but i have only ran 6 tanks through it with the 630's I have heard of a couple of failures but so far so good for me.
Old 05-07-2005, 06:39 AM
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Default RE: steering servos upgrade

thanks man. mine will be going in a big bipe. check out the "HUGE ULTIMATE BUILD" in the Profie Forum. since i've run electric and gas cars and trucks for twenty years, i know that they can stress servos more than planes. a believe that if a servo can hold up as a steering servo on a huge truck, it's pretty decent.
anybody running the JR 8611?
Old 05-15-2005, 08:19 AM
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Default RE: steering servos upgrade

I guess the jr8611 are the best digital servo's out there but I believe they are for aircraft. The technician at JR Radios suggests using the jr 4800T servos. These are analog servos but they claim they will match any thing the digital servos will do. Anyway he suggested the 4800T (T for torque). They run about $85.00 each compared to $115.00 each for the 8611's. Check out the JR Radio web site for all the info. Worth looking at. DBM [8D][8D] P>S> Maybe I should add they have 4800S (S for speed) also available.

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