A true performance upgrade for the 911 Carrera, -S, -GTS, -Dakar!
The world’s first complete 992 intercooler package. This is our most complex product ever!
If you ask us, this is the best intercooler kit we can make for this platform. We’ve spared no expense in our pursuit of maximum performance throughout the system. The starting point is the renowned Garrett Motorsport cores, incredibly well-crafted with thin, overlapping fins, precisely matching our specifications for cooling and airflow. The end tanks are made of thin die-cast aluminum to keep weight low while still utilizing airflow. To accommodate the thicker core, we’ve replaced the air guides with the highest-quality carbon ducts! And to eliminate bottlenecks throughout the system, the intercooler connections are larger and feature DO88 silicone hoses designed with smooth, sweeping bends. We made no sacrifices or compromises during this developmentΒhere are the results!
Key figures:
– Cooler inlet air temperature under the same conditions: 30Β°C / 86Β°F (39Β°C / 102.2Β°F), 9Β°C / (16.2Β°F) lower!
– More air to your engine, less backpressure, and better airflow!
– Airflow at 0.175 bar / 2.54 psi pressure drop: 919 CFM (820 CFM), 12% more!
– Motorsport-quality, high-density Bar & Plate cores by Garrett
– 3D freeform cast end tanks
– Custom-designed carbon fiber ambient air guides
– Comes with high-quality silicone hoses and installation accessories
– Intercooler outlet tank meth plugs (2x 1/8 NPT)
Background:
At the launch of the 992 generation, Porsche had already abandoned the naturally aspirated engine. From now on, all 911s are turbocharged, making this entry-level legend attractive even for those aiming for those bigger horsepower numbers. Each car model has its own challenges and prerequisites. While the principle is the same as always, the intercooler system layout is something completely new on this platform compared to previous Porsche 911s. With our knowledge and experience from previous developments, we sat down at the drawing board with equal shares of trust and respect. As pioneers on this new platform, we understood we had to be very precise and forward-thinking. Today, we are proud of our achievements for the 992!
Previous versions of the Porsche 911 have intercoolers inside each rear fender, with a Y-pipe joining them both before the charge air reaches the intake manifold. The 992 has a completely different configuration. The intercooler and Y-pipe are now combined in a single unit located under the rear wing. Ambient air is forced through ducts from the rear window, into a scoop on the tailgate, and forward through the intercooler core for optimal heat transfer. The active rear wing is crucial to the core’s efficiency, directing more air into its vertical position. Looking at the construction from the side, this configuration actually makes more sense, but it is also more challenging for us, a high-performance cooling manufacturer. To accommodate a core with increased volume and surface area, we had to develop new carbon ducts to accommodate the increased thickness. We’re thrilled to have taken our carbon fiber production to the next level with this product: a fit and finish worthy of an icon like the 911!
Garrett Cores:
The cores are Bar & Plate, made by the renowned Garrett Motorsport. Frankly, they’re the best you can find. The thin, overlapping cooling fins create a dense construction, providing highly efficient heat transfer. The core measures 105 mm (4″), which is exactly the thickest possible for this application. Air is distributed throughout the core via freeform, cast end tanks. Designing them was a significant undertaking, requiring 3D scanning, CFD analysis, and 3D printing multiple times until we achieved a finished prototype. As usual, we chose to use cast end tanks because they allow for shapes that CNC machining cannot replicate, and for us, function always trumps form. Maximum airflow trumps the bling factor! The tanks are made with 70 mm (2.75″) machined connections to allow for high output. To match these larger connections, we also include flexible silicone hoses. Both cores are joined by a central outlet tank to the intake manifold, using machined connections and meth plugs.
Carbon fiber air ducts:
The air ducts are made of vacuum-infused prepreg carbon fiber, and all parts feature mounting grooves for the air ducts, just like OE parts. No matter how complex the shapes, we guarantee a perfect fit! The two upper air ducts are the same regardless of your car, but for the two lower pieces, there is an option: Standard or SportDesign. The SportDesign has better cooling air evacuation via an outlet in the center of the bumper. From a performance standpoint, the SportDesign is preferable, but we offer carbon ducts for both versions. They feature appropriate rubber seals where necessary to prevent cooling air from escaping the core.
Performance:
When it comes to performance, do88 intercoolers significantly reduce intake temperatures! The graph in the additional images shows the difference compared to the OE 992 units. The data was collected with an AIM race recorder over five consecutive runs in quick succession on a closed airstrip. Full-throttle accelerations between 50-250 km/h (30-155 mph) were performed on a Porsche 911 Carrera S (450 hp). Hard braking, no cooling in the middle, only full traction five times. The rear wing was always in its upper position.
The test was conducted as follows:
First, five runs were performed with the car equipped with the OE 992 intercoolers. Stop, quick parts swap with the do88 intercoolers. Shakedown for a few minutes, and then five runs performed exactly the same way as with the OE parts. The decrease in inlet air temperature is significant, the peak delta being 9Β°C (16.2Β°F). See the graph in the additional images!
Cooling is important, as is airflow. After many hours of development, perfecting the final tanks, and selecting a core to meet our requirements, the result is a much more efficient intercooler in terms of heat transfer and airflow. Using our in-house flow bench, the Superflow SF-1020 Probench, airflow is verified for both DO88 intercoolers and OE 992 units. What you see is what you get: true performance!
Porsche 911 (992)
Model Years: 2019-
Model: Carrera / Carrera 4 / Carrera S / Carrera 4S / Carrera GTS / Carrera 4 GTS / Dakar
Miscellaneous:
– If your car has an unnecessary sound generator (Soundsystem), it will not be used with our intercooler kit. This system normally transmits sound via induction from the intercooler to the cabin.
– Select your car’s rear bumper. Standard bumper or SportDesign Package*.
* The SportDesign / GTS Package / Dakar rear bumper (equipment codes 2D1, 2D4, 2D5, VM2, VM3) has a cooling air outlet between the exhaust pipes.