Pinions Gears

[stewie_family_guy]

Guys

I was told by a seller on eBay that I cant get steel pinions for may Manta ray/TA01, as it uses AV metric pinions.

Although TA MARK (whom I trust) says 0.6 module ones will work, and someone else has said 0.8

Any comment

[terry.sc]

The Manta Ray does use 0.6 module pinions, and there are plenty of them around.

http://www.fusionhobbies.com/RW-Racing-0-6...ar-p/rw0600.htm

A stupid thing to say you can't get them when 0.6 module is a standard size and the Japanese manufacturers use it in all but the high end kits.

[stewie_family_guy]

The Manta Ray does use 0.6 module pinions, and there are plenty of them around.

http://www.fusionhobbies.com/RW-Racing-0-6...ar-p/rw0600.htm

A stupid thing to say you can't get them when 0.6 module is a standard size and the Japanese manufacturers use it in all but the high end kits.

Thanks for confirming....

does anyone know which pinion gears i choose?? there are loads on ebay but all seem for different cars...

I am looking for one with lots of teeth... like 24T and above..

Also does anyone know the gear ratios for the 4WD touraing and rally car gear set for the different options of spur gear??

[Blacque Jacque]

Steel 0.6 pinions from 12 to 28t:

http://demonpowerproducts.co.uk/product_in...products_id=607

[TA-Mark]

The standard pinion in your TA01 should be 21T. 2 or 3 less teeth on the pinion for the brushless system you are running will be about the right ratio (18T or 19T). 19T I found perfect for my 4600Kv system in my TA02/TA01 rally chassis.

Thing to look for is steel, not alloy. Alloy pinions do not last very long at all and you will be left with no pinion and no spur and pile of dust in the bottom of your gearbox. I bought Robinson Racing steel pinions from 16T to 21T which covers all my TA01/TA02/DF01 applications with both 4600Kv and 5700Kv motors.

[stewie_family_guy]

The standard pinion in your TA01 should be 21T. 2 or 3 less teeth on the pinion for the brushless system you are running will be about the right ratio (18T or 19T). 19T I found perfect for my 4600Kv system in my TA02/TA01 rally chassis.

Thing to look for is steel, not alloy. Alloy pinions do not last very long at all and you will be left with no pinion and no spur and pile of dust in the bottom of your gearbox. I bought Robinson Racing steel pinions from 16T to 21T which covers all my TA01/TA02/DF01 applications with both 4600Kv and 5700Kv motors.

can you tell me what spur gear you are running, cause if I run a smaller spur gear, say a 69T, i then need a larger pinion like 23 or more.... but that contradicts what you say above.....

[TA-Mark]

I would not recommend running the 69T spur with a brushless 4000Kv or higher (Ez-Run is 4300Kv). I run a 74T TA02 all plastic spur gear, standard spur in most TA02's.

A small spur and large pinion will put so much load on your 4300Kv motor you will cook it or kill batteries.

[stewie_family_guy]

I would not recommend running the 69T spur with a brushless 4000Kv or higher (Ez-Run is 4300Kv). I run a 74T TA02 all plastic spur gear, standard spur in most TA02's.

A small spur and large pinion will put so much load on your 4300Kv motor you will cook it or kill batteries.

cool cheers

I have a 21T in just now, cause thats all I have but will go looking for a 18 or 19 steel..

Cheers

[Blacque Jacque]

OK, my turn to ask a question now:

What's a reasonable pinion to use in a stock Manta Ray with a 19T spec motor ?

I'm assuming this isn't overpowering the chassis as we're discussing medium power brushless systems here anyway.

I have an alloy motor mount & stock gears (2 aluminium idlers in the rear gearbox)standard other than that.

[stewie_family_guy]

OK, my turn to ask a question now:

What's a reasonable pinion to use in a stock Manta Ray with a 19T spec motor ?

I'm assuming this isn't overpowering the chassis as we're discussing medium power brushless systems here anyway.

I have an alloy motor mount & stock gears (2 aluminium idlers in the rear gearbox)standard other than that.

OK - based on other advise not my own experiance you have to get one of these...

http://cgi.ebay.co.uk/Tamiya-50529-4WD-Tou...bayphotohosting

which now means all plastic gearbox... no nasty alloy based gunge after running...

Also I think the stell pinion is a good call, but the I gues the number of teeth would depend on whether you want acceleration or top speed...

you can also get

http://cgi.ebay.co.uk/Tamiya-53127-Skyline...p3286.m20.l1116

which gives you spur options based on the gearing ratios ytou posted for me....

My 9T brushless seems to run really smooth, no nasty noises or anything, thats with 50529 plastic gears in place, and a 21T pinion... it runs quietly and quickly - i just hope i wont open it up to find no teeth on any of my gears......

Mark says not to go too high as you'll put too much strain on the motor, but I dont kow what the limit it...

[TA-Mark]

What's a reasonable pinion to use in a stock Manta Ray with a 19T spec motor ?

I'm assuming this isn't overpowering the chassis as we're discussing medium power brushless systems here anyway.

I have an alloy motor mount & stock gears (2 aluminium idlers in the rear gearbox)standard other than that.

With a 19 Turn brushed motor I would also be using a 74T all plastic gear set from a TA02, and an 18 tooth or 19 tooth steel pinion becuase of the larger 2.2 wheels of a buggy. 18 tooth will give better acceleration and 19 tooth better speed. Note, this is for BRUSHED 19->17 turn. For the brushless motor (~4600Kv) in the same chassis (2.2 wheels) I would use 17 tooth and 18 tooth pinions on the 74 tooth spur.

The stock Manta-Ray with it's alloy idlers and pinion gears don't seem to have a drama until you get to a 15 turn double mod brushed in my experience. The alloy idlers and pinion still do wear a lot faster than they would if all plastic/steel. Mine lasted for years running 17 turn double mod brushed motors (I was going through motors like there was no tomorrow because of the dirt/dust here).

Only time I would consider using the 69T spur is when running stock motors in touring cars on nice smooth surfaces, it is essentially overgearing the car. With a brushless motor you would need a low Kv motor (2000Kv or there abouts) to run overgeared.

My 9T brushless seems to run really smooth, no nasty noises or anything, thats with 50529 plastic gears in place, and a 21T pinion... it runs quietly and quickly - i just hope i wont open it up to find no teeth on any of my gears......

I doubt it will break gears, don't think you battery packs will live very long however. When the motor strains under load the battery packs suffer as it attempt to draw more from the pack.

[stewie_family_guy]

With a 19 Turn brushed motor I would also be using a 74T all plastic gear set from a TA02, and an 18 tooth or 19 tooth steel pinion becuase of the larger 2.2 wheels of a buggy. 18 tooth will give better acceleration and 19 tooth better speed. Note, this is for BRUSHED 19->17 turn. For the brushless motor (~4600Kv) in the same chassis (2.2 wheels) I would use 17 tooth and 18 tooth pinions on the 74 tooth spur.

The stock Manta-Ray with it's alloy idlers and pinion gears don't seem to have a drama until you get to a 15 turn double mod brushed in my experience. The alloy idlers and pinion still do wear a lot faster than they would if all plastic/steel. Mine lasted for years running 17 turn double mod brushed motors (I was going through motors like there was no tomorrow because of the dirt/dust here).

Only time I would consider using the 69T spur is when running stock motors in touring cars on nice smooth surfaces, it is essentially overgearing the car. With a brushless motor you would need a low Kv motor (2000Kv or there abouts) to run overgeared.

I doubt it will break gears, don't think you battery packs will live very long however. When the motor strains under load the battery packs suffer as it attempt to draw more from the pack.

ok - but as per your previous advice, if i get rid of my 21T (which I plan to do) and get a 18 or 19 then my battery packs should be ok???

Cant go lower than an 18 dur to the motor mount i bought...

[Blacque Jacque]

Cheers for that Mark.

I can only go as low as an 18T pinion because I have a GPM 18-22 mount rather than the (perhaps better but much more expensive) Tamiya 16-21 type.

I wasn't considering dropping to a 69T spur, I don't have the room to run with the kind of top speeds those ratios can achieve.

If I am running on road, I can always go up to the 22T pinion to push the top end.

In the short term I'll just get an 18T steel pinion (and a few others for different cars) & run it until the idlers start getting noisy, then junk the whole geartrain & replace with all new plastic.

I'm also going to machine up a metal rear gearbox brace. I know Terry said in another thread the brace isn't necessary unless you're getting into silly motor territory but there's no harm in having it. It should also help to keep the wear rate down on those alloy idlers.

[stewie_family_guy]

Cheers for that Mark.

I can only go as low as an 18T pinion because I have a GPM 18-22 mount rather than the (perhaps better but much more expensive) Tamiya 16-21 type.

I wasn't considering dropping to a 69T spur, I don't have the room to run with the kind of top speeds those ratios can achieve.

If I am running on road, I can always go up to the 22T pinion to push the top end.

In the short term I'll just get an 18T steel pinion (and a few others for different cars) & run it until the idlers start getting noisy, then junk the whole geartrain & replace with all new plastic.

I'm also going to machine up a metal rear gearbox brace. I know Terry said in another thread the brace isn't necessary unless you're getting into silly motor territory but there's no harm in having it. It should also help to keep the wear rate down on those alloy idlers.

metal gearbox brace??? fabricate it from scratch?? any pics

[TA-Mark]

No harm in that brace at all. Forward is fine, it's on the brakes and reverse you see the problem arise when running more standard powered motors. I'd seen someone use an angle alloy section with a single hole drilled through it and a longer screw, this would work great. Shifts the load to above the 2 shafts instead of between them. I grabbed a solid section of alloy and machined 2 arches into it to go over the shafts with a single screw hole drilled in the centre, solved me cracking anymore gearbox covers. I was cracking the bottom gear casing then with the 5700Kv, no issues with the 4600Kv and actually faster lap times.

GPM do make a copy of the Tamiya motor mount as well. The one you have will get you the right ratios however. You shouldn't need to look at 16T or 17T pinions unless you start to play with brushless or 'touring' motors (13 turn and lower).

[Blacque Jacque]

metal gearbox brace??? fabricate it from scratch?? any pics

Yes metal, yes fabricate from scratch, there is no hop-up part for this.

I am fortunate enough to have access to a small milling machine so I am able to make these parts myself.

Terry.sc posted a photo from a members showroom detailing this part, I think it was in one of your own threads Stewie.

Edit: Found it

[hoppi05]

Wow some good info here guys it has really helped me today i have been working on my Dirt Thrasher today i have ordered a few parts metal motor mount, 18 and 19 pinion and the speed tuned gears and a 19t motor. so ill see what kind of ouff that gives it lol should be fun.......

[94eg!]

Wow some good info here guys it has really helped me today i have been working on my Dirt Thrasher today i have ordered a few parts metal motor mount, 18 and 19 pinion and the speed tuned gears and a 19t motor. so ill see what kind of ouff that gives it lol should be fun.......

Speed tuned gears will kill a good high-power 19T motor. A smaller spur is just like a bigger pinion. Gives more top-speed, but increases stress on the motor & battery...