Available again with improved spacer with O-Rings and a better price!
Husaberg water pump impeller and spacer, developed and manufactured to achieve a higher flow rate compared to the OEM parts.
Suitable for all models from 2004 - 2008.
CNC machined from aluminium and anodised in blue.
Set consists of water pump wheel, spacer, 2 O-rings and 3 screws.
Price is 85€ which includes shipping within EU. (UK: 75 GBP / USA: 95 USD / AUS: 150 AUD)
Background:
In high-performance engines, there is often a rapid rise in temperature in the cylinder, e.g. at full throttle on an incline. The engines can cope with this if they have either a high thermal inertia or a fast thermal response behaviour.
For example, the Zabel 2-stroke engine has a very thick cylinder and a very thick housing, which allows a lot of aluminium to be heated up and creates a high thermal inertia that prevents hot spots.
Formula 1 engines on the other hand have very thin cylinders and low mass cylinders, but very high coolant flow and different sized radiators, which have low thermal inertia but fast thermal response, which in turn prevents hot spots.
The ‘old’ Husabergs have neither one nor the other: A very thin cylinder and a small water channel (less volume than a can of Coke), resulting in low thermal inertia and poor coolant flow due to an inefficient and undersized pump rotor and small cooling channels.
As a result, Husabergs are prone to heat spikes, which can be prevented by the larger and better designed water pump impeller and associated spacer, thus contributing to longevity.
Husaberg water pump impeller and spacer, developed and manufactured to achieve a higher flow rate compared to the OEM parts.
Suitable for all models from 2004 - 2008.
CNC machined from aluminium and anodised in blue.
Set consists of water pump wheel, spacer, 2 O-rings and 3 screws.
Price is 85€ which includes shipping within EU. (UK: 75 GBP / USA: 95 USD / AUS: 150 AUD)
Background:
In high-performance engines, there is often a rapid rise in temperature in the cylinder, e.g. at full throttle on an incline. The engines can cope with this if they have either a high thermal inertia or a fast thermal response behaviour.
For example, the Zabel 2-stroke engine has a very thick cylinder and a very thick housing, which allows a lot of aluminium to be heated up and creates a high thermal inertia that prevents hot spots.
Formula 1 engines on the other hand have very thin cylinders and low mass cylinders, but very high coolant flow and different sized radiators, which have low thermal inertia but fast thermal response, which in turn prevents hot spots.
The ‘old’ Husabergs have neither one nor the other: A very thin cylinder and a small water channel (less volume than a can of Coke), resulting in low thermal inertia and poor coolant flow due to an inefficient and undersized pump rotor and small cooling channels.
As a result, Husabergs are prone to heat spikes, which can be prevented by the larger and better designed water pump impeller and associated spacer, thus contributing to longevity.
