Brc 510cc Conversion Kit KTM Tpi 2020+

Description

This BRC 510cc conversion kit is a custom big-bore package for KTM TPI donor engines, intended to convert a compatible 2020-2023 KTM 250 or 300 EXC/XC-W engine into a 510 cc two-stroke engine. It is a conversion build rather than a direct replacement engine, and it reuses selected original parts from the donor engine during assembly. TPI versions are supplied with a flashed ECU and larger injectors, with maps set for the riding elevations and conditions provided at the time of order.

Features

  • Converts a compatible KTM TPI donor engine into a 510 cc two-stroke build
  • Uses a pneumatic power valve system for smooth, linear power delivery
  • Accepts the donor 5-speed or 6-speed transmission
  • Compatible with both kick start and electric start
  • Includes a decompression system to assist starting
  • Integral counterbalance shaft helps reduce vibration
  • TPI version uses a flashed ECU and larger injectors matched to the stated riding conditions

Specifications

  • Bore: 89 mm
  • Stroke: 82 mm
  • Displacement: 510 cc
  • Output: 60+ hp
  • Torque: 50+ ft-lb
  • Compression ratio: 12.5:1
  • Squish clearance: 1.47-2.00 mm
  • Primary ratio: 2.25 (72:32)
  • Recommended fuel: 91 octane or higher
  • Recommended additional premix for TPI versions: 150:1 in the fuel tank
  • Recommended throttle-body butterfly drilling for TPI setup: 3 mm below 5,000 ft (1,500 m) elevation, 5 mm above 5,000 ft

Kit Contents

  • Pipe
  • Silencer
  • Exhaust manifold
  • VForce 4R reed cage (V426)
  • 0.3 mm base gasket
  • 0.4 mm base gasket
  • 0.5 mm base gasket

Donor Engine Requirements

  • The conversion uses the engine from the listed application to build the 510 cc engine
  • Reused donor parts include the complete transmission, clutch assembly, kicker assembly, water pump, intake, ignition and covers where possible
  • EFI/TPI is not supplied for a previously carburetted donor engine
  • Donor engines from 2013 onward should use a stiffer clutch diaphragm spring to help prevent clutch slip with the 500 conversion
  • The build is designed around readily available service parts including a Vertex Honda CR500 cast piston, Pro-X CR500 rod kit, KTM bearings and seals, and Cometic gaskets
  • Earlier BRC500 guidance identifies the stock 36 mm or 38 mm carburettor as the preferred fit for carburetted builds

Assembly and Supply Notes

  • Due to the value of the kit, it is shipped on a single small pallet
  • Due to the custom nature of the kit, no warranty is implied or given
  • Although every effort is made to supply the correct kit, all parts should be checked before assembly begins
  • Due to US and EU model differences, some modifications may be required to mounts, exhaust or other supporting parts
  • A signed waiver confirming acceptance of these conditions is required before dispatch

Vehicle Fitments

  • KTM 250 EXC TPI, 2020-2023
  • KTM 300 EXC TPI, 2020-2023
  • KTM 250 XC-W TPI, 2020-2023
  • KTM 300 XC-W TPI, 2020-2023

Brc 510cc Conversion Kit KTM Tpi 2020+

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This BRC 510cc conversion kit is a custom big-bore package for KTM TPI donor engines, intended to convert a compatible... Read more

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    SKU: BRC-KTM500_20+_TPI
    Barcode: 0120000002818

    • Free shipping on all orders above £75
    • No hassle returns within 30 days

    Description

    This BRC 510cc conversion kit is a custom big-bore package for KTM TPI donor engines, intended to convert a compatible 2020-2023 KTM 250 or 300 EXC/XC-W engine into a 510 cc two-stroke engine. It is a conversion build rather than a direct replacement engine, and it reuses selected original parts from the donor engine during assembly. TPI versions are supplied with a flashed ECU and larger injectors, with maps set for the riding elevations and conditions provided at the time of order.

    Features

    • Converts a compatible KTM TPI donor engine into a 510 cc two-stroke build
    • Uses a pneumatic power valve system for smooth, linear power delivery
    • Accepts the donor 5-speed or 6-speed transmission
    • Compatible with both kick start and electric start
    • Includes a decompression system to assist starting
    • Integral counterbalance shaft helps reduce vibration
    • TPI version uses a flashed ECU and larger injectors matched to the stated riding conditions

    Specifications

    • Bore: 89 mm
    • Stroke: 82 mm
    • Displacement: 510 cc
    • Output: 60+ hp
    • Torque: 50+ ft-lb
    • Compression ratio: 12.5:1
    • Squish clearance: 1.47-2.00 mm
    • Primary ratio: 2.25 (72:32)
    • Recommended fuel: 91 octane or higher
    • Recommended additional premix for TPI versions: 150:1 in the fuel tank
    • Recommended throttle-body butterfly drilling for TPI setup: 3 mm below 5,000 ft (1,500 m) elevation, 5 mm above 5,000 ft

    Kit Contents

    • Pipe
    • Silencer
    • Exhaust manifold
    • VForce 4R reed cage (V426)
    • 0.3 mm base gasket
    • 0.4 mm base gasket
    • 0.5 mm base gasket

    Donor Engine Requirements

    • The conversion uses the engine from the listed application to build the 510 cc engine
    • Reused donor parts include the complete transmission, clutch assembly, kicker assembly, water pump, intake, ignition and covers where possible
    • EFI/TPI is not supplied for a previously carburetted donor engine
    • Donor engines from 2013 onward should use a stiffer clutch diaphragm spring to help prevent clutch slip with the 500 conversion
    • The build is designed around readily available service parts including a Vertex Honda CR500 cast piston, Pro-X CR500 rod kit, KTM bearings and seals, and Cometic gaskets
    • Earlier BRC500 guidance identifies the stock 36 mm or 38 mm carburettor as the preferred fit for carburetted builds

    Assembly and Supply Notes

    • Due to the value of the kit, it is shipped on a single small pallet
    • Due to the custom nature of the kit, no warranty is implied or given
    • Although every effort is made to supply the correct kit, all parts should be checked before assembly begins
    • Due to US and EU model differences, some modifications may be required to mounts, exhaust or other supporting parts
    • A signed waiver confirming acceptance of these conditions is required before dispatch

    Vehicle Fitments

    • KTM 250 EXC TPI, 2020-2023
    • KTM 300 EXC TPI, 2020-2023
    • KTM 250 XC-W TPI, 2020-2023
    • KTM 300 XC-W TPI, 2020-2023

    Shipping & Delivery

    How long will my item take to arrive?

    Orders are typically dispatched within 1 working day and are shipped on a 24hour (non-guaranteed) service.

    Where do you ship to?

    We currently only ship orders within the UK.

    How can I track my order?

    Once your order has been dispatched, you will receive a tracking code. Tracking information is emailed to the email address that was provided when placing the order.

    Can I collect my order?

    Unfortunately we do not offer order collections from our fulfilment centre.

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