Drag Racing - The Waterless Coolant Advantage
When considering which coolant to use for racing, the first thing to consider is whether or not it is track legal. Water might be the default, as glycols are generally not allowed because of slippery hazardous conditions that result if the coolant gets on the track. Under high temperatures, vapor forms, pressure builds, and boilover can occur. If that coolant contains glycols, it becomes a dangerous and difficult mess to clean. The exception to the No-Glycol rule is Evans Waterless Coolants. The NHRA has approved Evans Waterless Coolant for use at the National and Divisional events. Wait, you might say, if it’s waterless, it must be all glycols, and how can that allowed? Evans is as slippery as other glycol/water-based coolants, but it will not form vapor, build pressure or boil out. Evans lower pressure significantly decreases the risk of coolant loss and is a much safer option that provides both performance and preservation advantages.
Evans Waterless Coolant (EWC) functions differently in the cooling system by avoiding the boiling condition at stressed temperatures, which is the weakness of water. It will remain a liquid, maintaining constant liquid-to-metal contact for consistent heat transfer.
The most effective liquid coolant is one that has the ability to absorb
a high amount of heat before boiling which will result in the lowest metal temperature in the cylinder ahead.”
"Drag racing is an extreme motorsport that requires reliable, safe products under the toughest conditions. Evans Waterless Coolant not only keeps our race cars consistently cool, it's safer than water. As a crew chief I depend on Evans to keep our engines running cool even on the hottest days at the track. Safety and reliability are my top concerns and Evans Waterless Coolant fits the bill for our team. Plus, it's NHRA approved!"- Eric Baird, Crew Chief, Britt Taylor Racing
"Evans Waterless Coolant gives me confidence and consistency to go round after round even on the hottest days. It gives me peace of mind and cools the engine fast after each pass. - Britt Taylor, NHRA Pro Sportsman Driver
Liquid Temps vs Metal Temps
A system which is highly optimized for water, with restrictive flow and high pressure differentials, can cause slower circulation with EWC. Evans coolant won’t boil, but if held longer in the engine, can pick up more heat. The coolant temp is what your gauge reads. If the rest of the system is capable and compatible, the EWC can process more heat out of the engine, and the “engine component temps” are actually improved and stabilized.
Air-to-Liquid Intercoolers act like a "backwards radiator", absorbing heat from the compressed air into the coolant. From a heat transfer standpoint, liquid water is best. Intercoolers typically do not see water temps above boiling point, so the benefit of waterless coolant for stabilizing or lowering the temp. is less evident than in the engine radiator. Where corrosion is a concern Evans offers long term protection but will not necessarily show an improvement in intake-air temperature.
To discuss your vehicle specifically, call the Waterless Tech Line at 888-990-2665.