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Close ratio gear set PSA BE4R gearbox

Close ratio gear set PSA BE4R gearbox

SKU:210601130

Weight - 7.5 kg

Regular price €2.018,50
Regular price €0,00 Sale price €2.018,50
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Gear and top speed calculator below.

Straight-Cut (Synchromesh) Gear Set for Peugeot-Citroën BE4R Gearbox

The gear ratios and RPM drop have been carefully designed to closely match those found in top R2-spec cars, such as the Peugeot 208 R2.

To keep costs as low as possible, we developed our BE4R close-ratio gear set to be used with OE BE4R final drive ratios for two main reasons:
1️⃣ Cost Efficiency – Keeping costs as low as possible for our customers.
2️⃣ Reliability & Availability – OE BE4R final drives are reliable, affordable, easy to find, and offer a wide range of ratios (12 different options).

This flexibility allows for optimal top-speed selection, making it especially suitable for rally and hill climb racing, as well as for adapting to each customer’s specific needs and conditions.

We keep the same OE mainshaft spline for the clutch disc: 18 teeth x 21 mm diameter.

📌 In the attached speed chart, you’ll find a list of OE final drive ratios that we have identified in the market.


Gear Ratios

  • 1st - (34/12) 2.833 ratio
  • 2nd - (32/15) 2.133 ratio
  • 3rd - (29/17) 1.706 ratio
  • 4th - (27/19) 1.421 ratio
  • 5th - (26/21) 1.238 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


Additional Parts Included (Free of Charge)

BE 5th gear aluminum cover


Important Notice

This gear set must use 80W90 gear oil:

  • With LS additive → For plate-type LSDs
  • Without LS additive → For gear/Torsen-type LSDs or OE open differentials

 

RSX Racing Solutions

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Top Speed and Gear Speed Calculator

Top Speed and Gear Speed Calculator

Revolutions

Gearbox

*You can enter values as a decimal (e.g., 3.764).*

Set a baseline, then change any values and press Calculate to compare both setups visually and numerically.

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