Subaru 1 3 Bar Radiator Cap

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Subaru 1 3 bar radiator cap.

You are suppose to run the higher pressure on the radiator. I have read a few topics here and there all over the internet with advantages and disadvantages but most have been heresay and there arent many facts to back up what people have posted about in their. The higher temperature allows the cooling system to absorb more heat. Avoiding boiling makes head gasket failure less likely.

The cap increases pressure and does allow temperature to go up about 10 degrees before fluid boils but does not reduce temperature. The 1 3 bar radiator cap will improve the cooling efficiency on the subaru wrx sti. The turbo tank needs the lower pressure cap since its job is to overflow the coolant into the overflow tank then after shutdown it will suck it back in. And only if you have an aftermarket.

Cosworth 1 1 1 3 and 1 5 bar high pressure radiator cap. Subaru genuine subaru radiator cap forester impreza outback legacy ej25 ej18 ej22 oem koyo sk c13 type a radiator cap red 1 3 bar mishimoto high pressure 1 3 bar radiator cap small. Keep your engine cool by upgrading to the cobb 1 3 bar radiator cap this higher pressure cap increases the effective boiling temperature of coolant in the system. For example you would run a 1 3 bar cap on the radiator and a 1 1 bar cap on the turbo tank.

1 1 bar vs 1 3 bar radiator cap posted in general.