Integy 35T -what pinion gear?

[z71baja]

All i've ever ran on my scx10 (7 lbs roughly) is 35t's by Integy with a 17 tooth pinion gear. Lately it's been running hot, so hot I cant touch it without getting burned and it feels like the rig looses power gradually (running a 2s) and there is a slight burning smell at the end of my crawl (is that normal ? ) Here come the questions:

What pinion size can I change to on my 35t gain torque and still run cool? ( I don't mind loosing wheel speed )

If I run a 45t or 55t what pinion size is recommended? This might be my avenue so that I can gain some torque, but would like some advice based on experience.

Is there a thread with turns to pinion gear match and what are the results?

Thanks for the feedback fellas

Happy crawl'n

[SINister]

Your best bet is start with a smaller pinion and see how it does. Try a 14-15 tooth and it should run cooler without a huge loss of wheel speed. The 35t motor should be fine in the truck but the smell and heat sounds like it's geared a little high.

[Solitaire]

I don't see anything wrong with your pinion for that setup, surmising you're running a 87T spur. I'd say the motor needs a replacement. 87/17 gives you a 5.11 ratio. I'm running a higher ratio (56/13 32P) with the stock 27T Axial motor and it runs fine. I can run it solid for two hours and it never gets hot. I might be a tad lighter than 7 lbs.

Stick with a 35T motor, but a better brand.

[CRAWLERJOE]

I use the same motor and I run a 14 t pinion and 87 t spur! I had heat issues with mine as well and found my gear mesh was too tight. I adjusted that and it gets warm but not hot! So would start there!

[z71baja]

Thanks fellas. Looks like the 35t is the way to go with a lower pinion gear. Spur gear is stock so I won't even mess with that.

Originally Posted by SINister

Your best bet is start with a smaller pinion and see how it does. Try a 14-15 tooth and it should run cooler without a huge loss of wheel speed. The 35t motor should be fine in the truck but the smell and heat sounds like it's geared a little high.

Originally Posted by Solitaire

I don't see anything wrong with your pinion for that setup, surmising you're running a 87T spur. I'd say the motor needs a replacement. 87/17 gives you a 5.11 ratio. I'm running a higher ratio (56/13 32P) with the stock 27T Axial motor and it runs fine. I can run it solid for two hours and it never gets hot. I might be a tad lighter than 7 lbs.

Stick with a 35T motor, but a better brand.

Originally Posted by CRAWLERJOE

I use the same motor and I run a 14 t pinion and 87 t spur! I had heat issues with mine as well and found my gear mesh was too tight. I adjusted that and it gets warm but not hot! So would start there!

[crawler nut]

I am running that set up in my shafty. Integy 35t, with a 14/87 and it barely gets warm. I run mine on 3s and it's got lots of torque for a cheap motor.

[Luther.max]

Originally Posted by crawler nut

I am running that set up in my shafty. Integy 35t, with a 14/87 and it barely gets warm. I run mine on 3s and it's got lots of torque for a cheap motor.

Same but 2slipo for me

[JohnRobHolmes]

I agree that the gearing sounds right. You probably overheated the motor once and degaussed the magnets. Now you need a magnet zap to bring back the torque and keep it from overheating.

[z71baja]

thank you gentlemen, I just picked up a 45T and a 15 pinion on my stock 87 spur. Should I go a few teeth down on the pinion?

btw, very imformative site Mr. Holmes

Brushed Motor Selection and Gearing Guide by Vehicle | The Search for Power

Originally Posted by crawler nut

I am running that set up in my shafty. Integy 35t, with a 14/87 and it barely gets warm. I run mine on 3s and it's got lots of torque for a cheap motor.

Originally Posted by Luther.max

Same but 2slipo for me

Originally Posted by JohnRobHolmes

I agree that the gearing sounds right. You probably overheated the motor once and degaussed the magnets. Now you need a magnet zap to bring back the torque and keep it from overheating.

[dkf]

I run a HH 35t handwound on 2s with 24/87 gearing currently. A good handwound will last you a long time with a little care and maint. In my experience the Integy motors need work right out of the box. The comm is lumpy among other things.

[crawler nut]

[QUOTE=z71baja;3787569]thank you gentlemen, I just picked up a 45T and a 15 pinion on my stock 87 spur. Should I go a few teeth down on the pinion?

I'd stick with a 14t pinion. The 24/87 is high geared for a crawler and can only be handled by a quality motor. Until you get a good motor I'd say run the 14/87. I have a HH 27T Torque Master Pro in another one of my shafty's and I run it the same 14/87 and it provides more than enough wheel speed.

[JohnRobHolmes]

Thanks! I have a pretty big list of things that still need to be added to the site, its just a matter of having 25 hours per day to get things done

Your pinion sounds fine, 15t is a great start.

[Shenanagin5]

Originally Posted by dkf

I run a HH 35t handwound on 2s with 24/87 gearing currently. A good handwound will last you a long time with a little care and maint. In my experience the Integy motors need work right out of the box. The comm is lumpy among other things.

I have a hh torque master 35t on my scx10, great motor. was alright on my 2.2s but trying to head in a more scale direction so I bought some 1.9s but it's just a little too slow. gearing is stock. what pinion do I need to up my speed?

[Duuuuuuuude]

16-18 would be a good start.

[Shenanagin5]

so what's the stock pinion?

[Duuuuuuuude]

Don't have a clue. The owners manual should tell you.

[Shenanagin5]

ok so I have the rtr honcho and it comes with 20t pinion. so I'll need to go bigger to get more wheel speed right?

[Duuuuuuuude]

Yes, as long as the motor doesn't get hot.

If speed is what you are after, either run more voltage or a lower turn motor.

[Shenanagin5]

can the AE-2 handle 11volts?

[Duuuuuuuude]

Yep, but you'll need to pick up a bec to keep your servo voltage up, otherwise you will more than likely brown out and shut down.