Close Ratio gear set for Getrac 260 gearbox found in BMW M20 and M30 engines

Gear Ratios

• 1st  - 2.571 ratio
• 2nd - 1.700 ratio
• 3rd  - 1.244 ratio
• 4th -  1.000 ratio
• 5th -  0.852 ratio

Material & Heat Treatment

✔ Material: Billet and forged high-strength nickel-chromium-molybdenum (Ni-Cr-Mo) alloy steel
✔ Surface Treatments: Gear grinding, sandblasting, shot peening, and Parkerizing
✔ Heat Treatments: Carburizing and cryogenic processing
✔ Hardness: HRC 56~60

Main surface treatment processes used: Sandblasting, shot peening and WPC.

Main heat treatments used: Carburizing and Cryogenic.

Forged selector shaft available here

Aplications:

Serie 3

• 3´ E21 - M20 engines
• 3´ E30 - M20 engines

Serie 5

• 5´ E34  - M30 engines
  

Serie 6

• 6´ E24 - M30 engines

Serie 7

• 7´ E23 - M30 engines

Z1

• Z1 roadster - M20 engine