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DO88
DO88
A true performance upgrade for 911 Carrera, -S, -GTS, -Dakar!
The world's first complete intercooler kit for 992.1 Carrera. This is do88's most complex product ever!
With Porsche's launch of the 992, the naturally aspirated engine concept for the Carrera models had been abandoned. Now all 911s feature forced induction, making this entry-level model very interesting even for those aiming for high power outputs! Every car has its specific conditions, and the design of the intercooler system on the 992 is completely different from previous generations of Porsche turbo cars – but the principle, of course, remains the same. With our experience from previous developments, we approached this project with great confidence. As a pioneer in the market for this platform, high demands were placed on accuracy and forward-thinking. We are proud of what we have to offer you as a 992 owner!
While previous generations of the Porsche 911 had their charge air coolers in the respective rear fenders, with a Y-pipe connecting them before the charge air reached the intake, the 992 has a completely different layout. The intercooler and Y-pipe are now a single unit located directly under the rear wing. Air is forced through ducts from the rear window down to a scoop, through the core package for maximum heat transfer. The active wing plays an important role by directing a significantly larger amount of air in its raised position. From an external perspective, this solution appears more rational, but it also places additional demands on us as manufacturers of performance coolers. To accommodate a core package with a larger surface area / volume, new air guides are required for it to fit at all. We are pleased that we have been able to elevate our carbon fiber production to the next level with this product – fit and finish worthy of a car like the Porsche 911!
The core packages are of the Bar&Plate type from the renowned Garrett Motorsport and are of the highest quality. Thin, densely packed cooling fins provide a solid construction that ensures efficient heat transfer. The core package measures a full 105 mm in thickness and, in our opinion, is exactly as thick as it can possibly be. Air is distributed across the entire core package via free-form designed, cast end tanks. This was an enormous job involving 3D scanning, CFD analysis, and multiple rounds of 3D printing to get everything right. We chose, as before, to use cast end tanks as they often allow for shapes that CNC machining cannot achieve, and for us, form never precedes function. Maximum flow is more important than the 'bling factor'! The end tanks come with machined connections that are 2.75”/70mm to further enable high power outputs. Unique hoses that fit these larger connections are also included. Both core packages are joined by a central, cast end tank with a CNC-machined connection to the throttle body and a port for methanol injection.
The air guides are made from vacuum-formed prepreg carbon fiber mat, and all pieces have mounting tabs for the air ducts just like the original. The shapes are very complex, but we guarantee a perfect fit! The two upper guides are always the same regardless of equipment, but for the two lower ones, there are two options: Standard or SportDesign, with the latter offering better evacuation of cooling air. Our measurements show that SportDesign truly contributes to increased cooling efficiency, but as mentioned, we offer unique air guides for both variants. The guides are supplied with sealing strips where required, to seal tightly against the engine compartment and prevent cooling air from bypassing the core packages.
Regarding performance, do88's intercooler kit provides a significant reduction in inlet temperature! The graph available under the extra images shows the difference compared to the 992 Carrera OE intercooler. All data was collected with our AIM racelogger during five directly consecutive accelerations on an airfield. Full throttle acceleration from 50-250 km/h in a Porsche 911 Carrera S (450hp). Followed by hard braking, no cooling between runs, just full throttle!
First, five runs were made with OE 992 intercoolers installed. Stop, quick on-site parts change. A few minutes of warm-up, and then five runs with the do88 intercooler in exactly the same way as with the OE a few minutes earlier. The temperature reduction is striking, a maximum difference of 9°C, see the graph available under the extra images. Cooling is important, but so is flow. After countless hours at the drawing board, refining and perfecting the end tanks combined with a core package to meet our requirements, we have a result that speaks for itself. With our own Superflow SF-1020 flow bench, we have verified the flow for both OE 992 and do88 charge air coolers. What you see is what you get – true performance!
*This video shows a Porsche (992) 911 Carrera, some details may differ. See the installation manual below.
OE references: 992145805F, 992145928C, 992145928B, 992145927C, 992145927B
Pricing
EUR 5,042
USD 5,917 / EUR 5,042 / UAH 259,660
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