It WILL fit

[mitchell]

Picked up a few Graupner speed 400's that were going cheap. I've tried to fit 400 size motors into the little low profile type gearboxes before and found that the generic/taigen motors are generally far too long and so are the shafts. But if you sit a Graupner 400 next to a taigen motor you'll see that the Graupner motor is about 3mm shorter, which is nice.



You'll still need to shave a few mm off the shaft length if you want them to squeeze into a Panzer 3 chassis



As you can see in the pic above its a very tight squeeze, but they will fit, eventually, and give a definate performance increase

[jackalope]

Oh wow great find! More torque now?

[mitchell]

It's an all metal panzer 3 I'm using them in, yeah loads of torque and easily maintains a good scaled speed

[BarryC]

Mitchell,

What make gearboxes are those?

TIA,
Barry

[mitchell]

Mitchell,

What make gearboxes are those?

TIA,
Barry

Their the taigen low profile 5:1 black steel

[BarryC]

Thanks Mitchell!

[mitchell]

Squeezed another pair into my other Pz3 chassis, this time with the little brass 5:1's. End result - a powerful but smooth running transmission



Please excuse the moly grease

[mitchell]

Sitting these gearboxes side by side their very very similar. There's so little play in the black steels that the noise they make is not far off the brass GB's

[971wright]

Hi Had some of these fitted in a Tiger , the 6v motor speed 400 draw more amps than the 7,2v version ,it could fry an rx18 mine did but it was in a Tiger full metal lower, might be O.K. in a Panzer 3 hull. Little tip slide a piece of plastic between the terminals just in case the chassis flexes stop them touching the other motor.

regards pete

[mitchell]

Hi Had some of these fitted in a Tiger , the 6v motor speed 400 draw more amps than the 7,2v version ,it could fry an rx18 mine did but it was in a Tiger full metal lower, might be O.K. in a Panzer 3 hull. Little tip slide a piece of plastic between the terminals just in case the chassis flexes stop them touching the other motor.

regards pete

Thanks for the heads up bud. I actually have a piece of perspex between the motors in each chassis, took it out for the picture. One chassis is running through a Clark board while the other is now running on an IBU2.