tallest gearing for big block w/traxxas 3500 and summit motor mount

[braaap58]

There is so many options and preferences I'm lost. For speed runs/ huge parking lot racing what gears do you run? i've got dirt hawg tires, 3s batteries and stock Merv esc. I do have the esc from my brushless stampede too but pictures show the stock brushless 1/16 one.

Thanks for the input. I have to mail order so trying parts at the counter isnt an option

[TQi]

Good question



31/40 maybe?? I don't even know if there's a 40t spur

[CobraWasHere]

Hot Racing makes a 43t spur, but it's steel. The smallest plastic spur I know of is the Traxxas 45t spur.

[Mossie]

do 31T45 or 28T45

and i am sure it will do right

fast and much torque with that gearing

31/40 will gain much heat i think on engine

[braaap58]

Tenbol site suggests 43/45 for 62mph. Anyone ran that?

[braaap58]

Since all the videos show people backflipping at 50 can I just run the tallest gearing space allows? If it can backflip its got tons of spare power left to gear taller for speed runs,,, right?

[braaap58]

Ran 31 pinion with stock 50t spur and had a blast. After 8 back to back 2 block speed runs the esc thermo shut it down, motor was at 125f, batteries at 70 degrees. was considerably faster mph wise than with stock brushless . I think it was doing 60. The 45 spur will push it some more! standing on the rear t-bone bumper for 15 feet at high speed was cool too.