Air Cleaner ?

[4coil]

Last year I switched from a K&N filter to the R2C filter. My engine builder was told by another engine builder friend that he had done back to back dyno testing and the R2C filter was considerably worse Torque and Horsepower wise than the K&N. Anyone else have any knowledge/opinions on this subject? Thanks in advance for your posts......

[dirty white boy]

http://www.4m.net/showthread.php?299346-Air-Pre-Filter

[R2C Competition Filters]

Testing

I'd be happy to reply with test data if you think it would help. It would refute these claims immediately.

Who are these two builders if you don't mind?

Are you running the new CFD base and lid yet?


R2C
2013 Pro Series Filters
The most advanced race filters ever developed!

[merc123]

I can't feel a difference in seat of the pants feel between K&N or R2C. Inside of the carb is much cleaner with R2C. I spent $50 on a K&N filter and probably $30+ on the cleaner and oils for it, plus washed it out every weekend. R2C was around $79 and haven't spent any money on it and only washed it 2 or 3 times in the past few years.

[r3tracing]

Does r2c have any plans on making any 10 inch round filters

[R2C Competition Filters]

10 Inch Filter

Does r2c have any plans on making any 10 inch round filters

What application would require a 10" diameter filter?

That diameter does limit the media area and can cause high media velocity on applications with relatively high demand.

R2C

[r3tracing]

2.3 ford with stock intake. no much room between carb and valve cover

[C10]

I can say when I tech carbs i find more "browning" of the boosters with the K&N then I do with the R2C element, Im not totally stuck on either one, but the carbs on R2C cars seem cleaner.

[return to dirt]

like r3 said, 4 cyls. i've ran ford, toyota, and nissan and have run 3x10 filters on all of them. ford 2100 series, holley 350/500, and holley 390 4bbl carbs. not a lot of room on some 4cyls. plus the 10 inch seems to do better with the 4cyl vibration then the 14 inch.

olin

[r3tracing]

The vibration is an issue on 4 cyl. glad to see im not the only weird one out there. at least everyone that you tell your running a 10 inch air cleaner seems to think anyway. We did turn 8400 with a 10 air cleaner so I don't think area of filter was to big of an issue on ours. Won a lot of races that way to. But I have noticed fine dust in carb and if r2c filter would cure that I would like to try one. Just wished they made a 10 though

[R2C Competition Filters]

We'll begin work on the 10" diameter air filters. We'll get a few that you currently use for baselines and comparative testing.

Reply to racing@r2cperformance.com if you have any specific suggestions or thoughts.

Thanks again.

[r3tracing]

The 10 x 2 and 10 x 3 k&n is what we use. and thank you for considering it.

[R2C Competition Filters]

If you have a part number, please post it. There are several listed and the pleat heights/inner diameter may be different.

Thanks

[4coil]

I agree that with the K&N the inside of the carb is dirtier than the R2C. According to the same dyno testing as above, R2C's base is really good! I don't plan on changing, I was just wondering if anyone else in the forum world had done any independent testing.

[MM90]

Thanks for the info Jeff, glad I don't need to spend $90 on an air filter for 3 hp.