The most important part of turbo cooler system is the heat exchanger core. Skimping here could mean the overall performance of an ‘upgraded’ system might be worse than stock! While the OEM unit is a single pass design with a core area of 156in^2, our Alpha core is a high quality, triple pass unit in which the coolant makes three passes through the heat exchanger – compare this to competing boost cooling kits which use a single pass design. Our premium core is made in the UK with a fin area of 417in^2. That’s almost three times the surface area of the stock core! For added durability, the fins are hemmed, giving it the added strength to withstand abuse from road debris.
The hand-fabricated Alpha coolant reservoir acts as a large heat sink so that coolant temperatures are kept low and stable. With over one gallon more coolant on board, it increases the cycle time of the coolant in your S6/S7, allowing more heat to dissipate before recirculating back into the system. By acting as a large thermal heat sink, the Alpha coolant reservoir is yet another feature that keeps horsepower-killing heat soak at bay.
Pumping up the Power
To give you the best possible performance and to keep the coolant flowing efficiently through the larger Alpha heat exchanger, we added an additional high flow brushless pump to run in conjunction with the OEM brushless pump. The combination of the two pumps allow for a very high flow rate in order to keep fluid moving. The additional brushless pump also maintains that flow rate at higher pressures, giving you the assurance your car will stay cool in hot climates, extended track sessions or everyday driving. See graph below for pump data.
The Devil is in the Details
All testing/logging was performed on our Dynojet dynamometer doing 1st through 5th gear pulls with conditions and ambient air temps being equal.
Alpha Performance Audi C7 S6/S7 Turbo Cooler System Install Instructions can be downloaded here.