Pummu Talladega Gear Ratio & Top Speed Calculator

Free Pummu Talladega gear ratio calculator. Enter your redline, tire size, gear ratios and final drive to see the top speed of every gear before you tune.

Pummu Talladega Gear Ratio & Top Speed Calculator

Tuning the gearbox is the cheapest way to find top speed in Pummu Talladega — no Cash, no parts, just the right ratios. Before you guess, work out where each gear tops out.

Enter your car's numbers below: the calculator shows the speed of every gear at redline and your overall top speed. Lengthen the upper gears (smaller numbers) for top speed; shorten the lower gears (bigger numbers) to launch harder.

Gear ratios (longer gear = smaller number)
Estimated top speed
207 mph
At redline in top gear, with the ratios above.
GearRatioSpeed @ redline
13.4049 mph
22.2075 mph
31.60104 mph
41.20138 mph
50.95174 mph
60.80207 mph

Shorten a gear (bigger number) for faster acceleration; lengthen the top gears (smaller number) for higher top speed. Lowering the final drive stretches every gear at once.

How to read it

  • Redline (RPM) — where your engine hits the limiter.
  • Tire diameter (inches) — bigger tires raise speed for the same gear and RPM.
  • Final drive — multiplies every gear. A smaller final drive stretches the whole gearbox and raises top speed.
  • Gear ratios — a smaller number is a longer (faster) gear.

Quick tuning rules

WantChange
Faster launchesShorten 1st–3rd (bigger numbers)
Higher top speedLengthen 4th+ (smaller numbers) or drop the final drive
All-roundKeep lower gears short, make the top gear as long as the engine can still pull

FAQ

What gearing gives the highest top speed? Lengthen the top gear and lower the final drive until the engine just reaches redline — any longer and it can't pull. The calculator shows the speed at redline in each gear so you can see the ceiling.

Why does my car stop accelerating before the top of the rev range? Your gearing is too short: the engine hits the limiter before the car reaches its potential. Fit a longer ratio or a smaller final drive.

Does tire size really change top speed? Yes — a larger tire covers more ground per rotation, so top speed rises for the same RPM and gear.