Replaced Gearboxes On Tiger 1.

[gp100]

Hi all,

Hope you guys are doing good.

As some of you know, I bought a Taigen Tiger 1 Mid-Version Metal Version that had some issues out of the box..

I had an issue with the tank pulling to the right, and the trim wasn't going to help due to a bad motor.. The gearbox also had an enormous amount of play in the gears..

Now, I purchased brand new gearboxes for it and installed them.. Perfect. They work right, and the problem has been solved.. The tank now runs straight as an arrow.. Victory at last!

I just have a few questions here on the motors.

My original 4:1 V2 Steel gearboxes had the 390 motors installed in them from the factory.. The new replacement gearboxes are the same 4:1 V2 steel versions, only they have the 380 motors installed.. Now, here's the question..

This Tiger 1 mid version Metal tank weighs a lot.. It's running just fine with the 380's.. No issues at all. Runs like it's a brand new tank.. But I'm curious if the 380 motors will be okay to run permanently. Or should I replace them with the 390's?

I actually like the speed of the 380's.. Not as fast.. But I also know I've given up some torque here as well. But really shouldn't be that much difference. Should it?

What do you guys think? What is your experience with these motors on these metal tanks?

Thanks in advance.

GP.

[43rdRecceReg]

Most Tamiya Tanks run well on 380s, and have an almost legendary staying power. Most beefy 'full metal/all metal' (now, there's misnomer ) and 'Pro' versions of the Tiger, King Tiger, and KV models are also supplied with 380s by Taigen, Torro and Heng Long, I believe. They seem to handle the weight, and typical garden gradients, without gasping to a halt. Within these groups, there will be sob-stories; tales of hair-ripping frustration, and also narratives of low maintenance, and reliable performance.
To use the modern idiom: 'If it ain't broke, don't fix it!'.
Then again, we seem to enjoy 'fixing' and uprating things here..

[gp100]

Most Tamiya Tanks run well on 380s, and have an almost legendary staying power. Most beefy 'full metal/all metal' (now, there's misnomer ) and 'Pro' versions of the Tiger, King Tiger, and KV models are also supplied with 380s by Taigen, Torro and Heng Long, I believe. They seem to handle the weight, and typical garden gradients, without gasping to a halt. Within these groups, there will be sob-stories; tales of hair-ripping frustration, and also narratives of low maintenance, and reliable performance.
To use the modern idiom: 'If it ain't broke, don't fix it!'.
Then again, we seem to enjoy 'fixing' and uprating things here..

Thank you 43rd,

I figured I probably would be okay with the 380's.. But wanted to be sure. I like climbing hills with the tank at times, and didn't want to over stress the motors. I figured maybe there was a reason the factory installed the 390's on this tank to begin with. All companies like to save money. So my thinking is, if they sprang for better motors initially, there must be a reason behind it.

And I admit, I honestly don't know enough about R/C motors to really tell you one way or the other. So wanted to be sure by asking the people here that know more about these motors than I do.

I'm actually very happy with these new gearboxes so far.. So if I don't need to replace the can motors in them, then I would rather leave it alone.. As you said, if it ain't broke, don't fix it.. I'm not looking to win any golden screwdriver awards here..

All I wanted was the tank to run like it should.. After installing an IBU2-Pro, and several other things. It is now perfect in my opinion.

Thanks again for your help.

GP.

[Kostyanchik]

motors r390 and motors speed 480 are the same size, just in different ways are called + motors speed 480 generally have 17000 rpm, and motors r390 can have different speeds both slower and faster. motors 380 are usually called the same in different directories.

[gp100]

motors r390 and motors speed 480 are the same size, just in different ways are called + motors speed 480 generally have 17000 rpm, and motors r390 can have different speeds both slower and faster. motors 380 are usually called the same in different directories.

Yes, I have seen that recently.. I've also seen several 380 motors that have been dubbed as "Sport tuned".. Would I see any increase in performance with these 4:1 gearboxes? Does anybody here mess around with different motors to see what they can get?

And does anybody here know where I can find a 10 Teeth 7mm Pinion gear that will slip onto a 2.3mm shaft? And that also has a screw on it to hold it? I don't want a push on pinion gear that I have to use special equipment to push it onto the shaft..

I'm sure there are probably lots of you guys that have done stuff like this..

Thanks again guys.

[Kostyanchik]

in reducers 3: 1, 4: 1 gears with the module 0,6. look for gears with 10 teeth.

[walter]

I do not think you will have any trouble using 380 motors.
My tank weighs 15kg and I use a Taigen 5:1 gear boxes that I think have only 260 motors. Yet the tank goes up 30 deg. hills without any problem. I have not yet tried the tank in high grass though.
Procuring 10 teeth pinions. May be the easiest way is get a cheep gear box. You will not be able to get one with a grub screw in it. When I have a loose pinion I use a bit of Loctite and it always has worked well for me.
You do not need special equipment to push the pinion onto the shaft. Pushing the pinion on just rest the other end of the motor shaft on a piece of steel or your bench vice and tap the pinion with a piece of hard wood. Taking the pinion of, open you bench vice so the motor will fit through. Slip a strip of about 3mm thick steel between between either side of the pinion and vice top then tap with a small punch at the motor shaft
Hope it was helpful for you.
Walter

[c.rainford73]

380's power most of my heavy tanks with no issues of any kind. Stay with them and if and when they burn out, swap them for the spares you have

[gp100]

Thanks guy's..

Yes, I've been running the 380's and they seem fine.. I was seriously thinking of going back to the 390's that Taigen used originally, but don't really see a need for it..