In simple terms we are T-Piecing into the cars AC system and the refrigerant is being split 50/50 between the cabin AC and our interchiller. Our interchiller is made up of 2 channels each consisting of 20 plates. In the first channel your intercooler fluid flows through, in the second your AC, which supercools your intercooler fluid extremely cold as low as minus -15c (5F). The cabin AC is not affected, if anything it is colder than stock since we add a touch more gas to the system. You then have a car which will make more power, and it will be consistent. You can hot lap it at the drags without waiting as it will be back to freezing cold by the time you drive back, and your engine is also protected from pre ignition since it’s running a colder intake charge.


We have completed a lot of R&D into our chiller design to get an even distribution of the AC gas across all of the plates in the chiller, this is essential to the cooling performance. What normally happens is the gas shoots into the chiller at a very high pressure and hits the base of the chiller, then some of the gas will revert backwards and only pass over the bottom few plates, this will not utilise the entire surface area of the chiller. So we have designed a specialised distribution device in the inlet of the chiller which forces the AC gas event across all of the plates. This results in the best heat transfer possible resulting in colder temps and getting colder temps faster.


Sport Compact is 12.5″. Chiller can be mounted in tight locations Race Chiller is 18.5″ long. It is the largest chiller we can fit to the cars

Race Chiller is 18.5″ long. It is the largest chiller we can fit to the cars

You have the option to buy an interchiller system with or without the cabin evaporator bypass solenoid. This solenoid allows you to turn ON/OFF the AC supply to the cabin and dedicate all of the AC to the chiller only with a simple ON/OFF switch, so you can use the Interchiller system on a race track. No race track will allow you to race if you are leaking anything from your car, and having the cabin AC turned off with the solenoid will stop condensation leaking from the car. What normally happens is moisture will stick to your cabin evaporator and drip under the car. This will not happen when you use the competition solenoid, so the interchiller system is safe to use on any race track. Additionally by using the competition solenoid it allows you to get even colder temps as the AC gas is completely dedicated to the chiller only.




We supply a water bypass diverter valve with out Interchiller system. This allows you to choose if you would like to bypass your standard front mount heat exchanger with the simple control of the valve with an ON/OFF switch. The reason for this is your intercooler fluid is now so freezing cold that if the coolant passes through the standard front mount heat exchanger the ambient air will actually heat up the coolant, as such the heat exchanger has now become a heat source instead of a cooling source. So bypassing the heat exchanger will result in colder temperatures. In 99% of driving you will leave this valve closed bypassing the heat exchanger, if you wish to not use your AC system for some reason then you have the option to open the bypass valve and utilise the factory heat exchanger as normal.

WWD - Hoses and Fittings - 1We refuse to use cheap and nasty AC fittings, they have built is issues along with long and short term problems. The hoses and fittings that we use are tested to SAE J2064 standards, and they actually exceed those standards. The burst pressure on them is 2500psi, this is impossible for your AC system to achieve, thus it will never burst.
As shown in the picture below, with regular crimp style hoses they are often plagued with the issue of trapping air and PAG oil in the crimp, which over time turns acidic

With the clamp system we use this never happens and you actually have a much stronger bite of the hose into the bite sections of the fittings, for a system that will last many years to come.

The fittings we use have a tensile strength on the weakest part (the radius) of 1600kg/3527lbs

The manufacturer we buy the hoses and fittings from warranties them as long as we use their hoses, clamps and fittings. As such we warranty the entire system, this shows how confident they are in their product that it will not fail and should it fail which is highly unlikely it will be replaced.
During SAE J2064 testing of the hose/fittings when it fails the part that fails is the actual hose bursting open at 2500psi ! The fittings and clamps remain intact still holding the hose to the fitting…only the hose is bursting open. This shows how strong the clamping system is and the bite force being applied to the hose/fitting. This is much stronger than regular crimping which is why the manufacturer is able to warranty their product.
Its a case of buying the best possible AC hose/fittings that is the most versatile, flexible to out needs and of a very high quality.

WWD - CNC - 1

CNC Fittings 
All of our fittings are custom made on our CNC to look and function with an OEM standard. They are pressure tested before being sent out, so they will not leak when installed correctly.



The results we have seen are amazing, the amount of HP being lost due to excessive heat is gained back and then some extra HP on top of that!
We recently tested our Interchiller in 36c (97F) summer temperatures
With the chiller only (competition mode) our IAT was at 10c (50F)
With the chiller and cabin AC running our IAT was at 15c (59F)
The cabin AC was unaffected and very nice and cold even on such a hot day. On colder days we have seen IAT temperatures range from minus -4c to 5c (24F to 41F)

A standard car without any Interchiller, the IAT is normally 10c above the ambient temperature, so when we are achieving an IAT of 10c (50F) on a 36c (97F) summer day this is equivalent to driving in winter time when the ambient temperature is 0c (32F) ice cold.

You can view the video with these results on our videos page.


On a standard 2014 model HSV Gen- F GTS fitted with the standard 6.2L LSA Supercharged engine we saw a gain of 23.9rwkw 32.1rwhp. The gain in HP is possible because of 2 reasons.

The first being the air is colder the oxygen is denser and you are getting a better cleaner burn of your air/fuel mixture. The second reason is more interesting because your intake ait temps is lower, the cars ECU is not pulling out as much ignition timing as it would have if you were at a hotter temperature. On this particular dyno run we saw a gain of 6 degrees of ignition timing…that’s a lot of power made there. Remember this is on a stock car, when you make even more heat when you over spin the blower, the gain will be even higher as you remove much larger amounts of heat.

WWD-dyno-2On our shop car, the same car as above the 2014 HSV Gen-F GTS once modified with heads, cam and 16psi boost out of the LSA engine on pump fuel we saw a gain of 35.5rwkw 47.6rwhp.


We warranty every component of the Interchiller system, we only use the highest quality components, which have all been pressure, tested far beyond the limitations of your AC system using SAE J2064 standards.
Our systems does not cut into the cars AC system or intercooler system in any way, so you can easily restore the car to stock and nobody would even know you had it installed.

Phone 0481 317 732


6 + 11 =