Since the 2GR-FE engine in the Evora uses a MAF sensor to meter the incoming air, we needed to ensure that this ECU input functioned flawlessly with our new intake system. The graph below shows the peak numbers of one of the stock air box dyno runs, 242.18rwhp and 229.73ft-lbs.Īlong with raising the rev limiter, the SPORT button activates a vacuum operated solenoid that opens a flapper valve in the intake system allowing a more direct air flow to the engine. The power output is not notably effected by the SPORT button. However, since this exhaust was in place for all of our testing, it was not going to affect our run to run comparisons. These factors may have resulted in a slightly higher power output than a 100% stock Evora. This particular Evora was equipped with a Larini Exhaust and a K&N drop-in panel filter. Without a doubt, Lotus went through many steps to suppress the acoustics unfortunately, as a side effect, performance was sacrificed. The factory intake system is not only restrictive, it is heavy and HUGE! This monstrosity occupies most of the engine bay and it is exceedingly complicated.
Drawing from former experience as engineers at Advanced Engine Management Inc., we assessed the factory intake system, developed a test plan, began fabricating test pipes and designing parts. This lead us to design a cold air intake system. This would improve the performance and create a more audible sports car engine sound.
#RADIUM FUEL DEALER INSTALL#
Several concerns, including a tendency for the engine to burn oil after hot lapping, gave a direction for the areas of development that would be initially tackled. The oil burning issue was solved with a Radium Install Kit for the Evora using our billet aluminum catch cans (more info on this later).Īnother idea was to improve the air flow to the Evora’s engine, allowing it to breath more freely. We took delivery of a Lotus Evora last month and we have been developing a few parts to enhance overall performance. Here’s the information from their blog about the intake system: The company also have an oil catch tank which can be used in conjunction with this system, very handy if you do a lot of track days they say. Images are courtesy of Radium but here’s the OEM system followed by an image of their system.
Those who have fitted the kit warn to be careful of dropping any bolts or the like as they’ll end up on top of the engine undertray which leads to a lot of work to retrieve the dropped item. The Radium CAI (Cold Air Intake) kit includes everything you need to replace the stock system and they say it takes less than an hour to install, including removing the old air intake. We’ve not tested the system directly but a few TLF members have fitted the kits and are so far very impressed with the ‘seat of the pants’ dyno results and induction sound improvements. Oregon, USA based Radium Engineering have released a new product they claim will release up to 21.5 extra peak horsepower over the OEM intake system for the naturally aspirated Evora along with a significant increase in torque throughout the range.
0 kommentar(er)
