Archive for ‘ April, 2014 ’

Corsa 1.6 Turbo VXR Aluminium Water Radiator

Due to increasing demand  we have once again joined forces with market leader’s Pro Alloy to fabricate an uprated aluminium water radiator for the VXR and 1.6 turbo engined Corsa D.

The new radiator had to be an all alloy construction featuring welded end tanks; this eliminates the common issue on Corsa D water radiators where they leak from the plastic end tanks.

Additionally the core depth has been increase from 26mm to 40mm, whilst the surface area has been increased by 7.7%. Furthermore by reconfiguring the tube layout and foil pitching we have increased the flow area by 67% making the radiator much more efficient in cooling and ambient airflow through the core.

Finally the bottom lower water connection on the right hand end tank has been make one piece, getting rid of the factory eclip/circlip configuration that also has been known to separate at high pressure.

It is available to order and can be finished raw in Natural Aluminium or powder coated in Stealth Black finish (at additional cost).

Ideal for direct replacement on any fast road or trackday car.

Price £558.00 including VAT.

It is also worthwhile considering an upgrade to Power Cool 180 Waterless Coolant at the same time. No Water, No Corrosion, No Pressure (less likelihood of leaks, less strain on hoses and other components) More BHP, No Hot Spots, No Overheating…….

Corsa D 1.6T Water Radiator Front

Corsa D 1.6T Water Radiator Front

Corsa D 1.6T Water Radiator Rear

Corsa D 1.6T Water Radiator Rear

VX220 Turbo Mapping

This Morning’s Rolling Road Job; a mild increase to 240bhp and 298 lb ft torque on this lovely VX220 Turbo, mapped and set up on the rolling road to suit the car.

VX220 Turbo

VX220 Turbo

K06 Astra H VXR

Another K06 conversion, with steel rods, Courtenay high flow inlet manifold, 3″ exhaust and CSR Intercooler being set up on our rolling road – bang on the money power and torque wise, and one of the cleanest and best prepared cars we’ve seen. We have also switched it to Evans Power Cool 180 Waterless Coolant.

 

Astra H VXR K06 Conversion

Astra H VXR K06 Conversion

 

 

How Waterless Coolant Works.

Water is an excellent fluid for cooling whilst in a liquid state, but when water turns to steam it has virtually no capacity for heat transfer. Evans is a superior fluid for transferring heat in engines because it remains in a liquid state until above 180°C. This article details the benefits of a significantly higher boiling point.

Within an engine cooling system the hottest surfaces are those adjacent to the combustion chamber, specifically the cylinder liners and cylinder head. In these hot spots water is likely to vaporise preventing efficient cooling and causing loss of performance and unnecessary engine damage. When the coolant fails in this way the engine becomes even hotter causing more hot spots and more steam.

Evans waterless coolants will not boil around these engine hotspots maintaining efficient cooling performance even when the engine is put under extreme conditions. When water turns to steam it pressurises the cooling system putting strain on hoses and other components. The significantly higher boiling point of Evans coolants means 75% less pressure than water resulting in a less stressed cooling system.

Water contains oxygen which causes corrosion and also allows electrolytic activity which further damages engine metals (chemical limitations of water). Evans waterless coolants eliminate corrosion and electrolytic activity significantly increasing the life of the engine.

Nucleate Boiling

Nucleate Boiling

Traditional water based coolants regularly cross the thermal boundary that separates efficient Nucleate Boiling (A) from inefficient Critical Heat Flux (CHF). CHF is synonymous with the condition ‘Departure from Nucleate Boiling’ (DNB). When DNB occurs, a layer of steam bubbles form adjacent to the engine hot spots (B).

Steam dissipates less than 1/30th of the heat that water does, rapidly over-heating local metal, causing premature detonation. The high boiling point of Evans Waterless Coolants, such as Power Cool 180, prevents DNB providing more efficient cooling in engine hot spots.

Convert your car to Waterless Engine Coolant:

The Courtenay Sport Blog

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