I developed the R series of engines to fit the needs of a specific group of our purchasers who continually wanted every option that we offer. They wanted the performance, the reliability, the longevity, the sound, and even the aesthetics that would set they’re Porsche apart. Due to this I created the R series engine packages, that are the perfect fit for the Porsche owner who wants everything rolled into one package.
With an R series, you don’t have to worry about the integration of induction, exhaust, tuning, or etc, because the whole engine as well as all sub- systems are sold, and installed as one well- oiled package. All Flat 6 Innovations R series engines are produced at the Flat 6 Innovations Custom Shop, located within our R&D/ Training Center at Area 139 Skunkwerks. All R- Series engines are based from our “Exclusive” service, where we collect the entire vehicle, transform it, and then ship it back home.
The R series is different than our standard Stage II in many ways. The R series comes with our most advanced cylinder heads, with the highest compression ratio, and custom CP pistons, coupled to our proprietary “Nickies” cylinder profile by LN Engineering in standard form. It also features altered camshaft profiles that are complimentary to the cylinder head specifications, and the sub- system components that make the R series a top performer, without questions concerning whether a certain aftermarket add- on will perform, or not.
R Series engines are not race engines; in fact these street engines are so advanced that they would not be allowed to race in any competitive series, due to class rules. That’s right, or street engines are more advanced than the cars that you see from this era at the track, running in PCA, NASA and other types of racing. Put simply, the rule book in race classes won’t allow for most of our technology to be employed, due to giving a “competitive advantage” that’s deemed “unfair”.
The R series engine for this generation of 996 is the R38. This engine couples 3.8 liters of displacement to a broad power band, netting 370HP(Flywheel HP) from the stock 3.4L Carrera base engine found in the 996.1. This means an increase of ~75HP over stock is a possibility from this package, by the addition of only 400ccs of added displacement over stock.
These are not high revving engines that only make power on the dyno; torque is a huge part of what we design, and these R series engines make 100% of their power below the factory rev limit! No need to turn up the rev limiter, and make unnecessary friction, heat, and wear….
If the R38, and an additional 75HP over stock isn’t enough for you, we can also build the R43, or even the R44 engine for your 996.1 Carrera, at 4.3, and 4.4L, respectively.
The R Series engines for this generation of 3.6L 996, and 997 models is the same, and is our most popular R Series engine; the R40. The R 40 adds an additional 400ccs of displacement over the stock 3.6L found in this generation of Carrera. Due to the differences in power that these engines and vehicles produced from 2002-2008 we do not have specific results to share across the board for each model, and sub- model. Expect an additional 80-100 HP over stock from most of the vehicles built during this period. Specific details can be attained through a scheduled phone chat with me, directly.
The R43 and R44 series of engines are also optional for this era of Carrera, and with these engines you can expect a minimum of 100HP over stock output to be made, and again, all at a very usable RPM. Like the R40, these are not high- revving, hard to drive engines that only perform well on the dyno. The big torque and HP from the added displacement, coupled with our engine design, and application of sub- systems makes for a well- mannered street car, and a track monster, all in one R series package.
The X-51 variant of the 996.2 engine can also be utilized as a base engine for an R40, R43, or R44 engine. These engines benefit from the R series work, and we can create even more powerful variants of the R series engine when starting with these foundations.
The R40 transforms the 997.1 Carrera S!
With variable combinations for the C2S, C4S, power ratings are also variable for these 997.1 variants. Expect these engines to be in the 400HP neighborhood, up 45-50HP over the factory 3.8 Carrera S output. Pay no attention to the fact that the R40 “only” adds 200 ccs over the factory displacement of 3.8L, as we capitalize on the cylinder heads, and camshafts that were crippled from the factory with the 3.8L Carrera S engines.
The optional R series engine for this generation of Carrera is our R43, weighing in at a whopping 4.3L, and 500ccs over stock displacement. These engines are rated at 425HP, with exceptional torque ratings. We have specific variants of the R43 for those with C4S chassis based 997s, and X-51 engine variants.
Not a lot needs to be said about this level of performance, except the vehicle maintains manners, has an exceptional boost in both torque, and HP, while gaining longevity, and reliability along with the performance gains. The 997.1 Carrera S is the perfect platform for this level of power. The cars retain their analog feel, and get a ton more feedback when you equip them with this level of performance.
Do you have a Boxster, or Cayman model? If so, and you want to learn about what R series engine can be built for your application, drop us a line and we will happily assist you. In a future newsletter we will focus on the R series engines for the 986, and 987 chassis applications.
Have a 2009 or later Porsche model, and want an R series engine? Never fear, the first R series engine for the 9A1 platform was finished in February 2010 for “Cayman X” and was our R42. For details on these engines, feel free to contact us.