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| Oil Cooling - How much energy does an engine produce? |
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We all know that the internal combustion engine is not as efficient
as it could be. It loses energy through friction and heat loss. But
what most people are unaware of is how much energy is lost as
heat and how much more heat is created from the same engine
once it has been tuned. The potential energy which goes in
through the carburettors of a mild road going four stroke 750CC
four cylinder engine is about 350bhp - Yet the amount of power it
actually produces is approximately 90bhp - Real power is generally
25 - 30% of potential. The rest goes in overcoming friction of the
moving parts, pumping air in, out and around the engine, exiting
through the exhaust and in heat loss. |
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In fact more than 30% of the potential power is wasted as heat
energy - more than is produced as useable power... |
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| Oil Cooling - Why doesn't the engine melt? |
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Why doesn't the engine melt? Where does all the heat go ? It goes
into the oil, the body of the engine and into the oil cooler. And if
the bike doe not have a cooler? - Well if it has enough fins and a
massive amount of air to cool everything it may be okay, otherwise
expect short engine life, seizure, breakdown of the oil... |
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Engine oil works best between 70 and 80 degrees centigrade,
although it's generally safe up to 100 degrees centigrade. Oil stops
doing it's job when it gets too hot. So you can now see the
importance of fitting an oil cooler to your bike to improve cooling
efficiency and improve power. Take a look at any racing bike - the
OEM cooler has been removed and replaced with a larger more
efficient oil cooler to maximise power... |
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Our oil coolers have earned a reputation for being a ightweight, highly
efficient heat transfer product combined with durability and reliability. Oil
coolers manufactured utilising aluminium alloy components, brazed into
one piece assemblies. The brazing process combined with appropriate design
features ensures a product capable of withstanding tests up to 350psi. Please
remember that if you rev the engine without allowing the oil to reach it's
optimum operating temperature, or if your engine has a sticky by-pass valve,
then a spike or instantaneous pressure pulse can occur through the cooler
which far exceeds 350psi. |
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Any engine should be left to tick over until oil temperature is at it's optimum,
but for certain applications you could fit a thermostat and check valve as
shown here. |
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| The reasons for fitting a cooler are easy to see. When racing or placing
unusual demands on an engine, or tuning an engine, oil can heat up over safe
limits. The result could be reduced engine life. For every 10°C of excessive
heat, oil life is halved and in severe cases can warp blocks, rupture radiator
hoses and burn valves. |
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| Mounting Instructions for HEL Performance Oil Line Kits. |
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There are several different varieties of oil line kits we currently supply. On
some occasions adaptors may be required and these will be included in your
kit with the appropriate washers. These washers will be fitted between the
adaptor and the cooler or the adaptor and the engine block as shown in
Figure 1 below. |
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