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^^ Thank you, but unfortunately I am in Europe.. but I will follow this thread until AEM will release the product, then I will write them about the fitting.
One more question:
Someone asked before about the the grunty sound when accelerating, so does this setup enhance the intake sound at all or it just stays the same as OEM, but also below 4k RPM?
enhanced, keep in mind that any open element or cone type filter will change intake sound.
^^ Thank you, but unfortunately I am in Europe.. but I will follow this thread until AEM will release the product, then I will write them about the fitting.
One more question:
Someone asked before about the the grunty sound when accelerating, so does this setup enhance the intake sound at all or it just stays the same as OEM, but also below 4k RPM?
Some people have pulled the vacuum line and covered the port that causes the intake flap to stay open (sound you hear after 4k). So that it's continuous and you don't hear the crossover and intake is louder. All the time. Some have discussed that this likely causes you to lose low end performance.
^^ Done that to my GSF and in theory I understand the possible consequence of "deleting" that flap, but I didn't really feel any obvious loss of performance, the car was just as fast as needed (note that I dont track my car).
But as I had to wait for my exhaust to be shipped, it was a perfect substitute for making the car louder. Also I contacted several ISF owners who drove their cars for years with disconnected flaps and had no problems like CEL..
As the exhaust was installed I connected the vacuum lines. Now I have nice noise from the exhaust but I miss the intake sound as it was back then and if this AEM intake also comes with better sound an some gains then it feels like money spent well.
Hmmm. Well put BK. May look into this. So-right now you have BOTH these vehicles?
Literally got an answer today on Lease Return timing on the GSF. Wasn't a good conversation. Good on you man, for real.
No, just lurking at your threads since several aftermarket parts are produced for RCF/GSF
My garage would be the best if I have owned both the RCF&GSF (I would keep the sedan for dialy driving and would mod the **** out of the coupe to be loud as hell, fast as f*** so it would be my ultimate weekend whip lol) but I got only the GSF.
Hmmm. Well put BK. May look into this. So-right now you have BOTH these vehicles?
Literally got an answer today on Lease Return timing on the GSF. Wasn't a good conversation. Good on you man, for real.
what wasn’t good about your lease convo? I turned my GS in with 0 problems or issues it went great.
Air filter lasts up to 100,000 miles before cleaning is required (depending on driving conditions)
Washable and reusable oil-free filter media
AEM Lifetime Limited Warranty
The AEM 21-780C fits some Lexus RC F models. See vehicle applications for details.
This Performance Air Intake System allows your engine to breathe more air compared to the restrictive factory air intake housing. It is designed, tuned and dyno-tested to produce more horsepower and torque. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air intake tube is constructed from mandrel-bent aluminum featuring a durable gunmetal gray powder coated finish. A custom shaped heat shield with a carbon fiber lid is included. The tapered cylinder shaped AEM Dryflow air filter is made from an oil-free, synthetic filter media that can be used for up to 100,000 miles before cleaning is needed (depending on driving conditions). This Air Intake System is backed by AEM's Lifetime Limited Warranty. Some AEM air intakes are not legal for sale or use in California and other states adopting California emission standards, while others are 50 state legal. View the 21-780C vehicle applications to determine the legal status for each vehicle.
There is a dyno chart above showing the improved hp and tq...that is a fact that it improves performance. I will never understand the hate...
the results are complete and total fraud, that’s why
No way this intake makes power. They simply sandbag the initial results a bit. Takeda intake claims +12hp, which is also total nonsense.
Dynojets are very consistent assuming there is good cooling in the dyno and testing is conducted in a repeatable way by monitoring intake and coolant temps. 400whp on a Dynojet with exhaust is VERY LOW for an RCF, never mind that it was supposed to make +18whp, lol.
Assuming the car is not heat soaking on dyno, an RCF should make 390-405 SAE in dynojet, bone stock.
I know these results are BS, because we extensively tested large open cone filters on the RCF years ago... MADE NO POWER. We even remapped the ECU and used 90mm (vs stock 84mm) intake pipes and MADE NO POWER. We weren’t going to just put a product out there that we know doesn’t make power, as Takeda and AEM are clearly doing.
in the course of doing extensive street datalogging, we discovered that the stock RCF intake suffers from heat soak when the secondary intake flapper opens, which is why we designed our carbon fiber intake heat shield.
That said, we don’t make any dyno claims about our new heat shield, but we do provide datalogs which show the improvement in intake air temps.
Thanks Rafi. As usual, very insightful. I agree the headers and exhaust are two things that yield the 40 - 45 whp gain. intake even stock is quite well optimized and hard to imagine an aftermarket intake would gain more power.
08-13-18 | 12:34 PM
