Gear ratio reduction in Ofna GTP.

[Big House]

I am looking to lower the Differential gear ration of my GTP and was looking to see if there are other ring and pinion sets that will fit the GTP where I can lower the gear ratio. Thanks.

[What's_nitro?]

Somebody wants to go fast.

It's already taller than most 1/8th buggies at 3.14:1. What about bigger pinion, smaller spur and/or more voltage? Can't be that hard to make it go faster.

[snellemin]

You can always go with a different motor.

[BrianG]

Bigger tires?

[snellemin]

Cross drilled wires and bacon wrapped motor. Red flame stickers.

[Big House]

I would love a 4000 kv motor in this thing but until Castle builds one, I have to do it with gearing.

[snellemin]

Neu has one the 1515 4100kv 1D or the .5Y 4400kv 1515 motor. Or there is the C50-6L 4080kv Hacker too. How fast do you really want to go? Or is it all about acceleration for you?

[bruce750i]

Need to figure a way to mount the traxxas 36,38 & 40t mod1 spurs on the spool. The CC 2650 on 6s is a rocket even with the big stock spur.

[Big House]

100+ on 6s and bullet fast on 4s. The parking lot races around here are limited to 4s so I need to compete with the guys running higher KVs with same voltage. I know I can gear the 2200 up without any issue but lowering the G/R at the same time would overcome the higher KV motors.

Originally Posted by snellemin

Neu has one the 1515 4100kv 1D or the .5Y 4400kv 1515 motor. Or there is the C50-6L 4080kv Hacker too. How fast do you really want to go? Or is it all about acceleration for you?

[snellemin]

I see. Bullet fast will need to be a 4 poler for sure. You will be surprised how fast the 2700kv 1515 motor can be on 4s. And you having the CF chassis, will be even quicker out the hole.

[Big House]

I may have to look into getting a 2650.

[snellemin]

Why not try your Medusa 3100kv motor in your light ride?

[Big House]

My GTP is on the heavy side for the Medusa I think. My GTP is tipping in at about 6.5 without the battery so I think that would be a bit much it.

[What's_nitro?]

I think my Rustler weighs 6.5... Is that RTR minus the battery? The 36-60 is much lighter than a 1515. It might be worth doing a test drive and see how it goes. It is a 4-pole after all and should be able to throw that weight around pretty good.