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Hitec 625 or 645 for steering?

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Old 04-16-2003, 01:50 AM
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maxxdaddy74
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Default Hitec 625 or 645 for steering?

I purchased the 625 because the guy at my lhs said it would handle the tires fine and with more speed. Then I could'nt help but notice that everyone uses the 645. I also have the proline servo saver kit on the way too. Both items were out of stock so they should be here by Thurs. Has anyone used the 625 with the proline system and how well is it? Or should I just go ahead and look for the 645 for steering and use the 625 for throttle? I need some help from some of you guys who know the Maxx. I will be using it mainly at the local track which is hard packed sand with plenty of jumps and turns. Thanks for any help.
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Old 04-16-2003, 02:38 AM
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elbowcreek
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Default Hitec 625 or 645 for steering?

Ive got the proline susp. kit on my maxx and I use the digital Hitec 945 for the steering duties even with a set of offset wheels it handles the job effortlessly it's got a ton of torque and is quite fast like .12 sec. the stock throttle servo is just fine for what it has to do also the Hitec 925 is a good servo for steering duties
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Old 04-16-2003, 04:50 AM
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Wild Gopher
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Default Hitec 625 or 645 for steering?

i use the Hitec 5645 for steering. Its a MG digital high speed/torque. I just installed it and it kicks major ass. I think it has like 160 oz of torque using a 6v pack. Costs about $60 bucks
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Old 04-16-2003, 05:22 AM
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dainjarouz
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Default Hitec 625 or 645 for steering?

the 625 and the 645 are eachothers counterparts for steering and torque. the 625 has more speed but less torque and the 645 has more torque but less speed. for steering you need torque, so go with the 645.
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Old 04-16-2003, 07:20 AM
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adeoliver
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Default Hitec 625 or 645 for steering?

Ya Id go with the high torque servo for steering, and the high speed for the gas. I run the 5945 digital servo for steering which pumps out 183oz @6volts and .13sec also @ 6volts(has to be tuff, sause its steering a 12.5lbs tmaxx, and I run the 5925 digital servo for gas which runs at .1sec & 127.7oz at 6volts. I have also ran both the standard mg 625 and 645, I currently have 2 spare Hs 645's on hand now since I upgraded to the digital servo's. But once again if these are the servos you are going to use, the 645 is the key for steering and the 625 is the key for the gas.

The 645 runs something like 133oz and .20sec's @ 6volts, and the 625 runs something like 94oz and .15sec's @6volts. I could be off a little but Im sure the specs are close!! Oh BTW the digital servo's also weight less then the standard servo's, just a racers hint LOL!! The 625&645 weight 2.11oz each, and the 5925&5945 weight in at just 1.97oz each, not much less but in a tight race every gram counts right? LOL what ever you do have a blast and kick some arse!!
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Old 04-16-2003, 08:20 AM
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Default Hitec 625 or 645 for steering?

The 645 is kinda slow for steering duty. I tried it on my savage and it didn't work out very well it was to slow.I'd go with the 625 for throttle/brake(more torque=better braking)and get a 945 for steering it has 122oz of torque and .16 sec with 4.8 volts and 1330z of torque and .14 sec. with 6 volts.
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Old 04-16-2003, 08:36 AM
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Default Hitec 625 or 645 for steering?

Well actualy in that area if you are gonna go with a 945, id spend the extra cash and get the digital 5945. But on a budget the 645 "although its a little slower" is the perfact servo for the proline kit. EIther way you will notice a very big difference between these servos and the stock servo!!
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Old 04-17-2003, 02:36 AM
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bobjones
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Default Hitec 625 or 645 for steering?

if your not sure whether you need more torque or more speed, you should always go for the torque. Unless you are an absolute diehard racer, .06 seconds wont make much of a difference. And is is always better to have slower response (under meticulous investigation) than to have tires that wont turn. It will also not matter if the servo is slightly faster if it cant handle the strain or put out enough holding power to achieve those turning speeds.
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Old 04-18-2003, 05:27 PM
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dainjarouz
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Default Hitec 625 or 645 for steering?

i agree if you got the money for a 945, just dish out the extra bux and get the digital version. i got the digital 645 it has 168oz at 6v, turns the Savages wheels back and forth even on the rug.
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