C2367

I just received one today. From what I see is it has more pleats but not as deep, base has a larger opening, the end cap could be more uniformed around. I will do a Real World, not seat of the pants or Dyno. Real World is what really what shows if the filter helps , reduces or does nothing compared to a $60 K&N washable. I will do this at the Drag strip, same strip, on very close to the same DA conditions and same amount of fuel. I have my time slips from Sept 22 to compare, I will be running with the same DR's that I dead Hook with and my car is very consistent usually ET /60' and MPH. Base A8 NPP no mods or tune. I really don't see how it could help much if any other than the base size opening does something magic.

C2367

Ran last night 1/8 mile under similar conditions with no magic, ran a tad worse at best with the BMS. Best 60' was 1.697 With the BMS vs 1.667 with the K&N. MPH with the BMS Best was 94.82 vs 94.61 with the K&N, Best ET with the BMS was a 7.548, best with K&N was 7.489. So don't expect any Magic with this filter over a reusable $60.00 K&N. Also this week had little to no head wind and the prior time with the K&N was a slightly more.

Fore58

Seems to be an apple to apple comparison to me. There isn't much you can do. I didn't think there would be any difference. However running that filter through the entire quarter mile perhaps may change opinions. Nice and honest test, sir. 👍

C2367

all that really maters is what it really does real world 1/4 or 1/8 mile, Dyno and seat of the pants means not much to me. I may give it a try next time I go to run the 1/4 at Fontana and again at Irwindale. Most likely go back to the K&N because don't want run slower. Yes it is pretty much a wash except for the fact you can't wash a BMS filter.

goec2468

If I understood it right, there were two weeks between the tests, correct?
If that is the case, you can't really compare the results.
The Performance difference between the two filters (if any) will be tiny anyway, maybe 5-10 hp at max.
Maybe the K&N is better, maybe it is not and maybe the difference is even bigger than you meassured.
I don't think we know yet.


5° difference only in air temperature will result in app. 5hp already.
Hunidity is another factor.


If you really want comparable results you Need to test the filter directly one after the other and then the first again, to eliminate factors like engine temp. heat soak,... (A - B -A).


Regards


Götz

corvetteflier

The more I read, the more I think there is really little to no upside to the filters available over the stock setup. The Vararam seems like the best "CAI" option, but at $400, is the gain worth it? Guess individuals will make that decision on a personal basis.

C2367

Ok, I run this strip only on ok or better day that the condition OK or better. I usually on any of those nights I turn 7.5's - 7.4's which is not a few but often with the K&N. I do not waste my time on bad condition nights to run worst. I may try it again next Thursday night if and only the conditions are OK or better. I run with a 1//4 tank of fuel and let the car cool down, hood open to keep heat soak down between runs. I don't hot lap. I try to keep every thing consistent. I have also done in the past on one of the C6 LS3's I owned exactly what you say about switching filters and systems. I tried the stock, Z06 housing with a K&N and a Complete K&N CAI system and the all ran on the same day within a 1/2 of a tenth and a 1/2 MPH. What I am saying I really do not think on a factory stock car with the factory tune you will see a noticeable change in performance with this BRM over any other Dry or washable aftermarket filter when running at the strip.

C2367

Yes $400.00 is to high for most likely next to nothing in a increase change in performance over just a higher flow filter. If they where to have that new system for about $300.00 shipped then it may be worth a try but still think you would only see maybe a 1/2 of tenth and a 1/2 mph at the most real world at the strip. Besides it is more impressive to have a stock car that the warranty is not voided on running great times then a car with MODS running just slightly better times on with a voided warranty. Think a ported TB would help more over a CAI at the strip and the price is less then a CAI.

bigsapper

@OP, if you want to send me the the dates/times you ran and the track, I can provide the DA.

C2367

The time of the runs on the slips is incorrect, the date is correct. They do not even start racing until 5pm and I do not run until later when it is cooler and the air is still.

village idiot

I ran 30 minute sessions on a track and my intake temp was damn near ambient temp. CAI don't actually draw in colder air. All they do is have a less restrictive filter, which means you're also going to let more dust and crap in your engine. You know how much money and R&D OEMs put into making more power? Don't you think they'd use these K&N style filters if they actually had no downside?

And the nonsense about making air smoother into the intake or whatever is just crap. It's going through a throttle body and then getting sucked into the plenum. It's all snake oil. The only reason they get any gains is for being less restrictive, but the trade off is less filtration.

C2367

I agree, it's not going through a open hole, it has a shaft and a blade. Not much worried about the dust, don't keep a car long enough and don't live in a usually dusty area. I remove when racing the black plastic piece that covers a hole above the filter at the edge of the fender for another avenue for air to enter, it is tight but air does get in. When I remove the filter it is noticeable that air is entering due to the discoloring at that point. Takes 2 seconds to remove or replace when I am done running and does not cost a cent.

Kracka

It's a paper air filter, $100 is a lot for something that gets tossed in the trash. If you're spending that kind of money, might as well get something washable/reusable that will last the life of the car.

village idiot

every time you wash it, it's filtration capabilities diminish.
Also- where are you paying $100 for a paper air filter?

Kracka

The BMS being discussed is a disposable paper air filter and is priced right around $100.

bigsapper

Density Altitude...
4:45pm: 1,855'
5:45pm: 1,646'
6:45pm: 1,488'
7:45pm: 1.389'
8:45pm: 1,257'

FYI, I use this phone app...
http://www.dragtimes.com/da-density-...calculator.php

Mike Jesse

Some of the information on Drag Times is not correct.
They have my home track listed at 152 ft. elevation.
It's actually 443 ft. Makes a pretty big change in the DA cals.

3 Z06ZR1

Where did you hear that?

Not suppose to put the K&N in the wash machine?

You spray it with precleaner and let it set and then gently rinse it from the inside out it.
Once it dry's it is good as new!!

village idiot

the more the fibers more around, the less uniform they'll be, the bigger the gaps it will create.

spinkick

Best way to find out if your filter is not good enough for your conditions is get a cheap oil analysis done or several over time. Thats what I'm going to do. If they see lots of silicate and such, you have a filter issue.