FX K501 Race Engine

The K501 is a premium, high-performance 1/8 off-road engine designed for high-competition racing. The K501 is completely innovated engine based on the K5 platform with focus on maximum bottom and middle power.

The 5-port engine includes a ceramic bearing and diamond-coated crankshaft. The crankshaft is individually balanced with a tungsten weight. The sleeve and piston set were specially selected and matched. The K501 features redesigned crankcase and engine cover and is equipped with a 10-rib engine head. The carburetor features a shorter needle.

The K501 is an extremely reliable and powerful engine suitable for any race track and racing conditions.

All the finest engineering and craftsmanship has gone into the concept, design, creation, and finishing of FX Engines. This engine and all of its parts were designed and manufactured by FX in-house in Slovakia, Europe using all the finest European materials and the most advanced Swiss, German, and Italian technologies. Even the crankcase was die cast in-house using fully robotic die casting technology.

All parts are individually measured and inspected, and dimensions of all parts are recorded to ensure a full manufacturing & assembly record of every single part. Each engine includes a manufacturing certificate that records all the important serial numbers and measurements so that, at any time, all details of the production – including material batch, machine programs, responsible craft persons and production dates – can be traced back to its roots.

Features:
Based on the K5 platform
5-port, high-competition 1/8 off-road engine
Maximum bottom and middle power
14mm high precision silicone-filled crankshaft
DLC coated crankshaft
Tungsten balanced crankshaft
CNC-machined silicium piston
Specially selected and matched sleeve & piston set
Ceramic ball-bearings
Redesigned crankcase
Redesigned rear engine cover
Carburetor with shorter needle
Designed and manufactured in Slovakia, Europe

Specs:
Displacement: 3.5cc
Bore: 16.26mm
Stroke: 16.80mm
Weight: 349g
Max. power: 2.65 HP @ 33,000 RPM
Practical RPM range: 4.000-39.000
Inlet Ports: 5 Transfer
Piston: CNC-machined silicium
Sleeve: CNC-machined brass, hard chrome plated
Front ball-bearing: 7x19mm, made in Japan
Rear ball-bearing: 14x25.8mm ceramic, made in Germany
Crankshaft: 14mm
Carburetor: Alloy body with thermal isolation; 3-needle design with a shorter needle; modular venturi
Glow plug: X3
Exhaust position: Rear

Includes:
X3 glow plug
Exhaust gasket
Cylinder-head shim
Carburetor venturi
3mm dust cap
6mm dust cap
16mm dust cap
18mm dust cap