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Old 08-23-2016, 05:59 PM   #7
johan
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Join Date: Aug 2014
Drives: '14 981CS, '99 NB1
Location: Oregon
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Quote:
Originally Posted by VeloxEric View Post
Swirl pots are generally used when there is no other easy place to fill the car from. Sometimes on cars, the radiator, hoses, etc all are lower than the engine and leave few places to fill the cooling system from while getting all the air out. Enter a swirl pot, which can grab a pressure and suction from anywhere in the system (typically pressure from the head or a high point) and allows the system to "burp" itself from air.

Is a swirl pot a superior system to non-swirl pot. Yes... slightly. Swirl pots typically see less pressure spikes than caps placed directly on the radiator or hoses (stock configuration for our cars). These pressure spikes can cause the overall system to run at slightly less pressure than designed or "pop off" before desired.

Do I think a swirl pot would benefit our cars? Not enough to matter in my opinion. Our system is easy to bleed out all the air.

Thanks,
Eric
I remember our favorite feature of the swirl pot - the ability to stuff ice cubes into it in between passes

Obviously not something you'd be doing with the main coolant system on the car - but great for charge air temps
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