Koyo SK-C13 rad Radiator Cap - for a Honda Civic.
|Koyo Radiator Cap SK-C13 High Pressure
ebay - Ends 09/02/2020
|Koyo Radiator Cap (1.3 Bar, Hyper Red), For Koyo Aluminum Radiators SK-C13
ebay - Ends 08/06/2020
|KOYO RACING RADIATOR HYPER CAP SK-C13 1.3BAR ( 18.85PSI ) FIT ALL KOYO RADIATORS
ebay - Ends 08/14/2020
|Koyo Radiator Cap (1.3 Bar, Hyper Red), For Koyo Aluminum Radiators I SK-C13
ebay - Ends 08/17/2020
|Koyo SK-C13 1.3 bar Hyper Cap for Koyorad Aluminum Radiator w/ Filler Neck
ebay - Ends 08/04/2020
Koyo SK-C13 Fitment:
Extract every ounce of cooling efficiency from Koyorad All Aluminum Performance Radiators with a genuine Koyorad Hyper Cap! This Koyorad Hyper Cap withstands an increased valve pressure rating of 1.3kgf/cm2 (1.3 bar) (18.9 psi) (130 kPa) which increases the boiling point of water and relieves high performance engines of excessive heat. A genuine Koyorad Hyper Cap is recommended for use with every Koyorad All Aluminum Performance Radiator (when applicable). This Koyorad Hyper Cap is manufactured in Japan from high quality components to ensure longevity and performance from your Koyorad Racing radiator.
Part # SK-C13 (Top photo RED) Deep plunger fits all Koyorad radiators w/ filler necks
Why is increased Pressure Better?
It’s simple. When water is pressurized, its natural boiling point is increased. Most modern vehicles are equipped with a 0.9 Bar pressure cap. Koyorad’s Hyper Cap is rated at 1.3 Bar which increases the boiling temperature of your coolant to 267.80 degrees Fahrenheit. That is nearly a 56 degree increase over water's normal boiling point. By increasing the boiling point of water, an engine's cooling system will have the added heat capacity, maximizing performance under ever-changing racing conditions.