Motors: recommended suppliers/models

[Nerge]

Hi all,

I'm looking to maybe upgrade the motors in my Pershing from the standard ones (metal gearbox) - can anyone recommend a good supplier (I'm in the UK) and have any recommendations for the motors themselves? Basically, I'd like to give the tank some more power on turning on grass etc, the usual good stuff.

Cheers!

[Red Devils]

You best bet is Steve at Welsh Dragon, he's the best and you can find in the recommended vendors site. Hope this helps.

Derek

[FreakyDude]

Hi Nerge
before you buy motors you may want to ask why do I want motors? Just changing motors might give you more rpm but really if you want more torque or pulling/climbing ability think about the entire gear box.
The gears will give you more of what you want than just motors. I might suggest you look at 3 to 1 ratio steel gears, these give the greatest life and strength yet they are not that expensive for what you get back.
The brass ones are an improvement but Brass is soft and they actually cost more than the steel so, In my opinion here you go the link is for the steel ones
http://www.asiatam.com/asiatam-stahl-ge ... p-910.html
then if you really want to spend some cash and get the best I have seen
http://www.modellspiegel.com/tamiya-1-16-gearbox/

this is the best advice I can give but if you still want motors, Graupner 400 and Speed 400 from Promax are the brands I see the most in tanks and by the way neither of these require you to add a fan onto your RX18.

[Tankbear]

I've got Graupner speed 400 (both 6v and 7.2v) and Jamara LiPo power 480 motors in varies tanks and all are excellent motors.

Graupner 400 speed 7.2v in my HL pershing standard gearbox runs great, fast and nimble.

Graupner 400 speed 6v in my HL ZTZ99 standard gearbox very fast (50mph scale speed! ) but drains 2000mah battery in 10-15 minutes.

Jamara LiPo Power 480 in heavy HL Tiger tank (6.5kg) with 4:1 gearbox and will drive up a 60degree slope even at slow speed.

Rest of tanks I have varies 3:1 gearboxes which do help but all feel under powered compared to the ones with uprated motors.

The Graupner motors you can buy from most model shops the jamara I got from als models but no longer listed so would have to be Germany.

Ian.

[Nerge]

Thanks guys.

There seems to be a slight difference of opinions here.
Whether to just upgrade the motor as you'll get speed and more torque as a by-product of the increased power, or to upgrade the gearbox to a lower ratio to give more torque at the expense of speed.

I know Tankbear has mentioned in the past the lower ratio ones are good for torque but kill your speed quite a bit in his experience, but a good motor resolves this - you could upgrade both I guess but this bumps the price up of course.

I've already got a metal gearbox in there, not sure if it's brass or steel but it's one that came with my Taigen Pershing; so far it seems fairly nippy it's just a fair bit slower on grass (but not too bad) and turning at standstill on grass often isn't always possible or struggles a bit at lower speeds, not really tested it on hills with the standard setup yet.

[Tankbear]

Daz

Your right everyones opions are different. But what a lot of people don't take into account is the final drive sprocket size which has a big impact on final speed/torque. If you go to the download page and 6th one down is an excel calculator where you can input a lot of stuff. Simply see how much difference there is between a Tiger 1 and a Pershing.

Apart from seeing other actual tankers with different motor/gearbox combinations it is difficult to know how radical the change is likely to be.

You could get upgraded motors fit them and still not happy go for the 3:1 gearboxes and fit the upgraded motors to them. I know more cost if end up getting both but i'm convinced just upgraded motors in your Pershing will be more than enough.

Ian.

[B.A.D.A.S.S.Force]

Hi all,

I'm looking to maybe upgrade the motors in my Pershing from the standard ones (metal gearbox) - can anyone recommend a good supplier (I'm in the UK) and have any recommendations for the motors themselves? Basically, I'd like to give the tank some more power on turning on grass etc, the usual good stuff.

Cheers!

I'm not keen on the Taigen parts, but an issue which hasn't been mentioned here yet, is that if they are similar or the exact same as the Heng Long "standard" upgrade metal gearbox, the gears are the softer white metal or pot-metal type (what ever you want to name them), & they may not last long after a motor upgrade anyway, especially if you intend to run the tank hard in grass or any terrain which places a lot of stress on the drive train. I know some people might have had a good experience when using bigger motors with the white metal gearboxes in their tanks, such as Tankbear seems to have, but I think there are many more people who end up having issues with them, than those that don't. The softer metal gears are much more prone to stripping teeth eventually, even when using the under powered motors that come with those gearboxes. When under the excess speed & torque provided with bigger motors, the odds of stripping gear teeth increase drastically, especially depending on how hard you drive the tank, such as doing a lot of spin-turns, & how rough the terrain is where you are performing the hard driving.

It seems you have not had any bad experience of stripping any gear teeth yet, even though you stated you have run your tank in grass & had it straining to spin turn. My brief experience, is that I've had both sets of my standard metal gearboxes already strip some gear teeth using the underpowered original motors (Heng Long Panther G & KV-1), so for me it was 2 out of 2 tanks that stripped the softer metal gear teeth because I tried running them in grass as well as a slightly rough dirt field, & I didn't even run them that long or really that aggressively in my opinion.

If you aren't happy with the way it runs in grass, then best to upgrade to any one of the available 3:1 or supposedly 4:1 gearboxes for the extra torque needed. Then, if you find that the upper end speed of the tank is too slow for you, possibly look into changing the pinion gear out for one with some more teeth than the original pinion has on it, or look into bigger motors for it, or you can do both.

One set of gearboxes not mentioned in this thread yet are the Waltersons 3-Speed (Read this thread about them here). A metal gear gearbox that comes with a pinion gear puller tool as well as 3 different pinions to swap out to adjust the way the gearbox performs.

~ Craig ~