Steering servo

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ikesavage

ikesavage

Well-Known Member
Messages
264
Location
Canosburg
I just put a mg 645 in and its not enough, so what is a good 300oz servo that's under 50.xx max is 60.xx? I'm running the spektrum dx4s with the sr415 with a hump pack. At some point I'm going to upgrade to LiPo if I can, for the sr415 I know I can with the dx4.
 
I just bought one of these to put in my old 25 rebuild. image.pngClaims to have 17kg of torque. Will walk the truck right off the table with 40 series tires on it. Can't say how long it will last or its durability. Just installed it the other day. But I'm very impressed with the torque for $12
 
Caretaker109 said:
Hitec 645 should be fine, what wheels do you run?
Maybe something binding in the steering assembly?

Humppack fully charged?
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I triple checked everything with just the weight of the truck it has a hard time turning and the hump pack is fully charged. Running dirt bones.
 
ikesavage said:
I triple checked everything with just the weight of the truck it has a hard time turning and the hump pack is fully charged. Running dirt bones.
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My Savage has a cheap 200 ozin servo and it will whip the wheels side to side, you rig has got to have something binding somewhere I have to think. disconnect the servo horn and check all the pivot points really well.... also does the bellcranks have bearings or bushings ? bushings will wear fast and allow the cranks to cock to one side causing alot of binding headaches....
 
Please correct me if I'm wrong, but acording to the hitec site, 645mg has 133oz/inch of torque. image.pngNot to say that's not enough, but might be a bit shy to turn big tires while sitting still.
 
Servo saver is from the ofna pirate and I rebuilt the truck so what ever was bad has been replaced but I will check it again.
 
Bauerdog said:
Please correct me if I'm wrong, but acording to the hitec site, 645mg has 133oz/inch of torque. View attachment 2363Not to say that's not enough, but might be a bit shy to turn big tires while sitting still.
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I agree with ya there, i would spring for a better servo in the 200 to 250 oz in range and swap that 645mg to throttle duties, I am using one of them TowerPro servos off e bay and it works really well, but then again I am a known cheapskate all over the cyber world anyway :)
 
Just got to thinking with the new radio set up do I need to go digital or something like that?
 
Jam Racing 1 said:
I agree with ya there, i would spring for a better servo in the 200 to 250 oz in range and swap that 645mg to throttle duties, I am using one of them TowerPro servos off e bay and it works really well, but then again I am a known cheapskate all over the cyber world anyway :)
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:woot:
 
I was thinking the same thing get a 200 or 300oz and swap the brake/throttle because the one that is in there I think is going bad. I would like to stay with hitec but what is a good one thats 300oz?
 
GAJ said:
What makes the OFNA steering servosaver an upgrade? I do have one sitting around doing nothing.
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I had got that spring years ago when it was an up grade the truck has sat for 6 years.
 
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