Transmission Internal Drive Ratios

[Eau Rouge]

Lots of people are running their vintage cars more and more, and using contemporary electronics in them on the track. Gearing is always an issue for many newbies and vets, alike. To get a proper gear ratio for your motor, battery, tire and chassis, it's important to know the final drive ratio of the transmission or gearbox in your buggy. Here's a list I have been compiling for a while of various final internal ratios of different buggies. I know I am missing some, so if you know of any that aren't on the list—old or new—feel free to post them and I'll update the master list in this first post.

Transmission Internal Drive Ratios

• 1.86:1 -- Team Pit Stop Chain Drive
  1.87:1 -- Team Associated 6-gear RC10
  1.87:1 -- Team Pit Stop Chain Drive
  2.00:1 -- Team Pit Stop Chain Drive (optional)
  2.14:1 -- Team Pit Stop Chain Drive (optional)
  2.28:1 -- Team Pit Stop Chain Drive (optional)
  1.96:1 -- RPM Stealth Buggy Conversion (light gray case)
  2.00:1 -- MIP "Stealth"
  2.10:1 -- Team Losi XXX4
  2.18:1 -- Team Losi JRX2 - JRXT
  2.19:1 -- Team Losi XX Buggy
  2.20:1 -- Yokomo MR4-BX
  2.22:1 -- A&L Lethal Weapon
  2.25:1 -- Team Associated Stealth RC10 - RC10T - Dual Sport
  2.29:1 -- AYK Pro Radiant
  2.33:1 -- Yokomo YZ10 - 870C
  2.40:1 -- Team Associated B2
  2.40:1 -- Team Associated B3 - T3
  2.43:1 -- Team Losi XXX CR
  2.43:1 -- Schumacher CAT - XL - Top Cat
  2.56:1 -- Team Losi XXX BK2 MF2
  2.60:1 -- Kyosho RB5
  2.60:1 -- Team Associated T2 - GT
  2.60:1 -- Team Associated B4 - T4 - SC
  2.60:1 -- Team Losi XX Truck
  2.61:1 -- Team Losi XXT CR
  2.61:1 -- RPM Stealth Truck Conversion (white case)
  2.67:1 -- Duratrax Evader SX - BX
  2.72:1 -- Schumacher 98/99/Axis
  2.72:1 -- Traxxas Stampede - Rustler - Bandit
  2.90:1 -- TAG Coyote
  3.03:1 -- Kyosho Ultima

(Spur gear teeth/pinion teeth) X transmission ratio = FDR

[Coelacanth]

Kyosho Optima?

[Eau Rouge]

I know which ones are missing... I obviously don't know what they are.

[askbob]

Much appreciated!

[dinglem]

AYK Pro Radiant - 2.29

TAG Coyote - 2.90

[Lowgear]

Thanks, I added them to the list since Eau Rouge isn't around to do it.

[aip47-2008]

1.86:1 -- Team Pit Stop Chain Drive

[Lowgear]

Thanks, added it.