No servo saver.............. remedies?

[Shaun_TLR]

Hi all, bit of a noob question coming up, so ...............

My 22 obv doesnt have a servo saver, so (bar avoiding crashes) does anyone know hows best to avoid knackering a servo?

Also, does anyone have any views on whether turn limits will increase the load on a servo. Ive had the steering rates on my DX3s turned up to 150% and my friend reckons that will stres the servo more than merely 100% setting. Im noit sure I agree, as surely if the end points are setup correctly, theres no un-needed load?

thanks muchly

[Frecklychimp]

Use a decent quality metal geared servo and obviously avoid crashes as much as possible.

I have used the same Savox 1251 in a 22 since the car's release, there have been plenty of thrills and spills and have never broken the servo or had any issues with it and it's still going strong.

I kept the kit plastic servo horn fitted as a hopeful weak point in the system and have never stripped one either.... i stripped the kit plastic one on a 22T in 3 clean indoor corners of first run with same servo type... just through extra force from bigger wheels!

You should set your end points to be at maximum when the steering hits full lock... or maybe even a couple of mm before to allow wheel force to take any slop into the steering lock stops.

There is no point in having the steering travel end points set beyond lock stops as it cannot physically travel any further and will strain the servo motor... you can hear when a servo is straining by the buzzing noise.

with modern servos they will take a lot of punishment due to higher torque motors and metal gears, but abusing them will lead to a shorter life.

[Frecklychimp]

As for steering rates....

personally it depends on track grip conditions and how tight/flowing the track is plus what tyre charateristics you have...

if you have an aggressive tyre on front such as minispikes then you won't want full steering rates as it will dig in too quick and grip roll... but this is set-up dependant and conditions based too.

i tend to go out on a new track to practice with steering on maximum and see how it feels in a few laps as you learn layout... if it feels too much instantly after a few laps, pull car over and turn it down say 20% and try a few more laps.

it all depends on how much feel you have for front end grip and what suits your driving style...

i prefer to have too much steering available as it can be handy to have extra lock if needed when going into a corner a bit fast and using extra steering to scrub speed.

a car that feels like it understeers initially will normally be easier to drive consistantly... but its a personal preference thing so something you will have to play with in testing to find a balance that suits.

[Robby]

Originally Posted by Frecklychimp

Use a decent quality metal geared servo and obviously avoid crashes as much as possible.

There is no point in having the steering travel end points set beyond lock stops as it cannot physically travel any further and will strain the servo motor... you can hear when a servo is straining by the buzzing noise.

Totally agree.


People have been running these cars for quite a while now, and it's not like you read all kinds of complaints from people burning up and packing up servos because of the lack of a saver.

As was said above, there's no sense in having your steering endpoints set beyond the steering lock/stops.
And as far as exponential setting go, I don't think I've ever been close to running mine at full-steering and usually am only about 80%.