single or dual servos.
01-15-2006, 04:55 PM
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single or dual servos.
Whats everyone running? Single servo or dual servos? Whats the advantage of running single versus dual besides battery life. Im planning on getting the hitec 5998 tg
01-16-2006, 06:10 AM
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RE: single or dual servos.
There are several reasons people go to single servo for steering:
1. Weight - one servo is half the weight of two
2. Battery life - unless both servos are perfectly balanced they'll always be fighting and draining your battery
3. Speed - I think the stock servos are .23s response.
4. More torque - whilst 110oz is sufficient people seem to like grunt in their steering.
5. Box mods - with a servo gone on the throttle side you can remove the throttle box and mount the throttle servo where the other steering one was. Needs a few mods but balances the truck nicely
I run a Futaba S9451 with 126oz torque and .10sec response and it serves me just fine.
1. Weight - one servo is half the weight of two
2. Battery life - unless both servos are perfectly balanced they'll always be fighting and draining your battery
3. Speed - I think the stock servos are .23s response.
4. More torque - whilst 110oz is sufficient people seem to like grunt in their steering.
5. Box mods - with a servo gone on the throttle side you can remove the throttle box and mount the throttle servo where the other steering one was. Needs a few mods but balances the truck nicely
I run a Futaba S9451 with 126oz torque and .10sec response and it serves me just fine.
01-16-2006, 10:13 AM
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RE: single or dual servos.
ORIGINAL: maxx0619
that would work well. i use a single hitec 5945mg on mine
that would work well. i use a single hitec 5945mg on mine
01-16-2006, 07:30 PM
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RE: single or dual servos.
01-16-2006, 08:26 PM
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RE: single or dual servos.
ORIGINAL: RBd Revo
There are several reasons people go to single servo for steering:
1. Weight - one servo is half the weight of two
2. Battery life - unless both servos are perfectly balanced they'll always be fighting and draining your battery
3. Speed - I think the stock servos are .23s response.
4. More torque - whilst 110oz is sufficient people seem to like grunt in their steering.
5. Box mods - with a servo gone on the throttle side you can remove the throttle box and mount the throttle servo where the other steering one was. Needs a few mods but balances the truck nicely
I run a Futaba S9451 with 126oz torque and .10sec response and it serves me just fine.
There are several reasons people go to single servo for steering:
1. Weight - one servo is half the weight of two
2. Battery life - unless both servos are perfectly balanced they'll always be fighting and draining your battery
3. Speed - I think the stock servos are .23s response.
4. More torque - whilst 110oz is sufficient people seem to like grunt in their steering.
5. Box mods - with a servo gone on the throttle side you can remove the throttle box and mount the throttle servo where the other steering one was. Needs a few mods but balances the truck nicely
I run a Futaba S9451 with 126oz torque and .10sec response and it serves me just fine.
1. could you post a pic of #5 Box mods, sounds interesting how you mounted the throttle servo in the empty area where the steering servo was. Thats the reason why I bough TWO hitec 5998tg for the steering. Also did I mention I'm mostly a basher?
2. Could you explain the "126oz. torque and .10 sec" that every servo has. My servos that I bought is rated for 250oz @ .19secs. Is this fast?
Another thing is everyone using the stock throttle servo or did most upgrade to another and if so which one, I'm thinking of getting that upgraded as well.
01-17-2006, 12:25 AM
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RE: single or dual servos.
trdcorolla,
The first part I'll explain in words.
When doing the single servo steering mod, most people the new servo on the right side of the truck (same side as the rx unit). This leaves the opening for the second servo empty. After removing the throttle box, you mount the throttle servo from the underside of the chassis. The brackets for your steering servo go underneath the chassis and is screwed in from the top.
You need to bend the brake arm a few times, get an extended throttle link and instal a bolt for the throttle spring.. Sounds complicated but really isn't.
The second part is strange. 2 x 250oz servo's is overkill. You only need the one and 250oz is ample. The faster the response time the quicker the servo will respond to your actions on the transmitter. 0.19sec is ok for bashing and slightly quicker than stock but racers seem to like .08 to .10 seconds.
As for the throttle servo, I'd go the upgrade. You want at least 80oz torque and a quick speed. I put a Hitec HS 635HB in mine (83oz/.15 sec) only because it was dirt cheap on sale but would have prefered the Hitec HS925MG (107oz/.08sec)
If your running an aftermarket radio or plan to, then you may want to look at digital servo's rather than standard so you can fiddle with end point adjustments etc.
The first part I'll explain in words.
When doing the single servo steering mod, most people the new servo on the right side of the truck (same side as the rx unit). This leaves the opening for the second servo empty. After removing the throttle box, you mount the throttle servo from the underside of the chassis. The brackets for your steering servo go underneath the chassis and is screwed in from the top.
You need to bend the brake arm a few times, get an extended throttle link and instal a bolt for the throttle spring.. Sounds complicated but really isn't.
The second part is strange. 2 x 250oz servo's is overkill. You only need the one and 250oz is ample. The faster the response time the quicker the servo will respond to your actions on the transmitter. 0.19sec is ok for bashing and slightly quicker than stock but racers seem to like .08 to .10 seconds.
As for the throttle servo, I'd go the upgrade. You want at least 80oz torque and a quick speed. I put a Hitec HS 635HB in mine (83oz/.15 sec) only because it was dirt cheap on sale but would have prefered the Hitec HS925MG (107oz/.08sec)
If your running an aftermarket radio or plan to, then you may want to look at digital servo's rather than standard so you can fiddle with end point adjustments etc.
01-17-2006, 11:36 AM
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RE: single or dual servos.
i would just like to add to this that with a high torque servo like that, speed won't be a problem. having that much strength gives you options. if it seems to need more speed, just pick up a longer servo horn(perhaps for an airplane). being longer, the outer most point of the horn will travel from point a to point b at a much faster rate when compairing these two points as being equal distance being traveled by a shorter horn. hopefully i explained that well enough.
01-18-2006, 05:42 PM
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RE: single or dual servos.
ORIGINAL: RBd Revo
trdcorolla,
The first part I'll explain in words.
When doing the single servo steering mod, most people the new servo on the right side of the truck (same side as the rx unit). This leaves the opening for the second servo empty. After removing the throttle box, you mount the throttle servo from the underside of the chassis. The brackets for your steering servo go underneath the chassis and is screwed in from the top.
You need to bend the brake arm a few times, get an extended throttle link and instal a bolt for the throttle spring.. Sounds complicated but really isn't.
The second part is strange. 2 x 250oz servo's is overkill. You only need the one and 250oz is ample. The faster the response time the quicker the servo will respond to your actions on the transmitter. 0.19sec is ok for bashing and slightly quicker than stock but racers seem to like .08 to .10 seconds.
As for the throttle servo, I'd go the upgrade. You want at least 80oz torque and a quick speed. I put a Hitec HS 635HB in mine (83oz/.15 sec) only because it was dirt cheap on sale but would have prefered the Hitec HS925MG (107oz/.08sec)
If your running an aftermarket radio or plan to, then you may want to look at digital servo's rather than standard so you can fiddle with end point adjustments etc.
trdcorolla,
The first part I'll explain in words.
When doing the single servo steering mod, most people the new servo on the right side of the truck (same side as the rx unit). This leaves the opening for the second servo empty. After removing the throttle box, you mount the throttle servo from the underside of the chassis. The brackets for your steering servo go underneath the chassis and is screwed in from the top.
You need to bend the brake arm a few times, get an extended throttle link and instal a bolt for the throttle spring.. Sounds complicated but really isn't.
The second part is strange. 2 x 250oz servo's is overkill. You only need the one and 250oz is ample. The faster the response time the quicker the servo will respond to your actions on the transmitter. 0.19sec is ok for bashing and slightly quicker than stock but racers seem to like .08 to .10 seconds.
As for the throttle servo, I'd go the upgrade. You want at least 80oz torque and a quick speed. I put a Hitec HS 635HB in mine (83oz/.15 sec) only because it was dirt cheap on sale but would have prefered the Hitec HS925MG (107oz/.08sec)
If your running an aftermarket radio or plan to, then you may want to look at digital servo's rather than standard so you can fiddle with end point adjustments etc.
