Transmitter, receiver + servo hop up

[KnightAzul]

I have an Thunder Tiger TS-4n Sport 4WD (RTR) and have noticed that the steering is not tracking well. The conclusion of a previous question related to this problem that I had was that I should upgrade my RTR transmitter from a twin paddle type to a pistol type controller. After a little more digging around ...

Ok, so I am going to upgrade the transmitter, but lets take a look at the servos too!

The throttle and steering servos are both stock S1903 Ace R/C units. Having read lots of threads on the subject of steering servos, it would seem that a steering servo hop up is a good bet!to improve the steering speed and torque. For a Thunder Tiger TS-4n Sport 4WD what would be considered as a touring car racer's speed and torque requirements? and how does this compare to the original S1903?

I am guessing that a digitial steering servo is overkill on this car.

Thanks,
KnightAzul

 

[SkyMaxx]

Digital might be overkill. Then again it might not.

How much do you want to spend?

What you need to look for is something compatible with your radio system (easy to do in most cases).

For a street racing touring car such as the TS-4 you do not really need monstrous torque, but a nimble servo is a must.

Digital servos offer great torque and great speed. You can also find reasonable torque and great speed in non-digital servos.

So, this brings us back to the real problem. How much do you want to spend?

I'll look into the servo you mentioned and see what I can find to compare it too...

 

[KnightAzul]

You are of course right that it all boils down to how much I want to spend in the end. The budget would be around $50 (more or less 50€ in my currency).

Am I right in thinking that my costs will spiral with a digital servo as I will have to upgrade the battery pack too since they draw more power? Is it that the batteries wear down quicker or that the servo requires more voltage?

What part does the receiver play in the compatibility stakes?

Thanks,
KnightAzul

 

[SkyMaxx]

The receiver defines what style plug you need on the servo.

The digital servo can run just fine on dry cells, but many have experienced quicker battery death with them. I can't say that I have, but a rechargeable pack would be a wise upgrade.

Despite a night long search for your servo, for comparison, I came up empty. I'll see what I can dig up in that price range.

 

[KnightAzul]

Hi,

After a day of shopping, taking into account the advice given, I finalled ended up with a HiTec Aggressor CRX digital 3 channel transmitter + receiver combo, which came complete with one HiTec HS-325HB servo. Also, I invested in a 5 pack rechargeable battery pack.

I also couldn't find my original S1903 Ace R/C servo on the net, so I am assuming that it probaby isn't that good. Given, this I will install the HS-325HB for steering and keep one of the S1903 for the throttle/brake.

Just one question about servo installation. Should I use the existing server arm setup and put this directly onto the new HiTec servo? Looking at the four pointed servo arm that came with the new servo it looks like there is some work to cut this to shape.
Also, what is a servo saver?

Thank,
KnightAzul

 

[SkyMaxx]

Sounds like you found yourself a nice radio set up.

You can use the old servo arm and linkages if you want. Just make certain that you have a good fit and that everything is snug when you screw it onto the servo.

A servo saver is a spring type mechanism that is used on the servo. This mechanism absorbs hard shocks to the linkage so that the servo does not have to. They are typically used on steering servos. Why? At speed, when you throw a turn in and the wheels hit something that jars them...that shock goes right back to the servo. The servo saver is there to absorb the shock and hopefully save the servo...thus "servo saver".

They are a good idea to have. I recommend Kimbrough brand servo savers. Tough little suckers.