Frequently Asked Questions


What is the capacity of the intercooler tanks?

Our tanks come in different shapes and sizes to accomodate the space that you have to work with. We offer two of our most popular tank shapes: square and halfmoon.  Both shapes can be made to hold capacities ranging from 3.5 gal. to 10gal.  Our most popular sizes are 5 gal. and 7gal. You shouldn't ever really need anymore than the  7gal. unless running the 1/2 mile or 1 mile. 

Will ice damage the pump?

All of our tanks have either a screen or a strainer to prevent ice from getting to the pump. The rule pumps have a strainer in them to prevent ice from leaving the tank and damaging the system. 

What size hose do I use?

All of the twin screw or Roots syle superchargers (ie. Eaton, TVS, Kenne Bell, VMP, Whipple) use the 3/4" hose. Unless you modify intercooler to accept a larger hose, you will most likely use the 3/4".   If using a larger hose, you would need  to have the intercooler opened up with a mill and heat exchanger opened with larger fittings welded on. 

Centri and turbos are different, if you are water to air intercooler than have your tank matched to the intercooler. You wont be using a heat exchanger with that. We show a  video of a rule 2000 and a EMP pushing through 3/4" lines and it moves a lot of water. 

What does 12an, 16an, 3/4"npt, and 1"npt mean?


The AN thread is a particular type of fitting used to connect flexible hoses that carry fluid. It is a US military-derived specification that dates back to World War II and stems from a joint standard agreed upon by the Army and Navy, hence AN.

AN sizes range from -2 (dash two) to -32 in irregular steps, with each equating to the OD (outside diameter) of the tubing in 1/16" increments. Therefore, a -8 AN size would be equal to 1/2" OD tube (8 × 1/16 = 1/2). However, this system does not specify the ID (inside diameter) of the tubing because the tube wall can vary in thickness. Each AN size also uses its own standard thread size.

AN fittings are a flare fitting, using 37° flared tubing to form a metal-metal seal. They are similar to other 37° flared fittings, such as JIC, which is their industrial variant. The two are interchangeable in theory, though this is typically not recommended due to the exacting specifications and demands of the aerospace industry. The differences between them relate to thread class and shape (how tight a fit the threads are), and the metals used. 12AN is close to the same size as 3/4 " and 16AN is considered the same as 1". 

Our 12AN and 16AN fittings are used with a insulated heat hose that is made to carry the coolant or ice water the length of the car and back. The fittings on the tank and at the end of the hose are the difference. Its either a barb or a A/N fitting. That is chosen under options. 

All factory supecharger and upgraded supercharger use 3/4" fiitting and can also use 12AN. The choice is up to you. 

What is the average turnaround time?

Getting your custom product shipped to you as soon as possible is very important to us.  Our standard shapes (half  moon and square) take between 1-2 weeks.  Customized shapes will take slightly longer.  Please keep in mind that these custom tanks are made to order and our number one priority is quality.


If you have any questions, please do not hesitate to contact us through email  PNRWELDING@GMAIL.COM.   Orders will not be accepted by phone.