Stock air filter vs BMC race air filter - Honda Motorcycles - FireBlades.org
Honda FireBlade Discussion of the Honda CBR 900RR, Honda CBR 929RR, Honda CBR 954RR, and Honda CBR 1000RR Motorcycles.

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post #1 of 15 Old 09-15-2003, 11:15 PM Thread Starter
 
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Re: Stock air filter vs BMC race air filter

Well, I've been reading alot of post on this and different boards about stock air filters vs aftermarket air filters. I could not find any posts that had dyno runs stating one way or another. Just people saying that the stock was the best.

I must have more money than brains, because I've decided to compare the stock and BMC race. I ordered the BMC race filter today. When it comes in I'm going to run my 954 with the stock filter, then the BMC. I will post the results and dyno sheets.

Just for info, I made 142hp/69.9tq the last time I had a dyno tune on the 954.

Mod on the 954 are:

Hindle high mount full exhaust
PCIII
Flapper mod
Pair mod

I'll update this post when I get the filter in.

Rick
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post #2 of 15 Old 09-16-2003, 5:18 PM
 
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Re: Stock air filter vs BMC race air filter

I have considered the bmc as a replacement and will be interested to see your results.
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post #3 of 15 Old 09-17-2003, 9:54 PM
 
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Re: Stock air filter vs BMC race air filter

I think you can find such results from the esteemed Abtech right here in the KB. But, if I recall correctly BMC stuff wasn't run. either way, if the tests are valid, the more info the better?!
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post #4 of 15 Old 09-18-2003, 9:27 PM
 
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Re: Stock air filter vs BMC race air filter

I believe running a 'race' filter on the street is a bad idea - it lets a lot of crap flow through to the engine, along with the extra O2...

Z...

You're f%#&king up my Chi...
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post #5 of 15 Old 09-22-2003, 9:32 PM
 
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Re: Stock air filter vs BMC race air filter

yeah, i would like to see a BMC VS STOCK back to back equal dyno runs
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post #6 of 15 Old 11-13-2003, 10:20 AM
 
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Re: Stock air filter vs BMC race air filter

I have wanted to reply to this post for sometime but am using my office computer and couldn't logon using my old info. Anyway, here is the 411, I have an '02 954 R/B, full Hindle, Flapper mod, custom map done by L&L motorsports. My bike made a best of 140.5 with the BMC and 140.9 with the stock filter. These runs were done 15 minutes apart(time to change the filter). That only tells half the story, with the stock filter we had a 3 horse gain from idle to redline with no losses anywhere. By the way, I gained around 4-5 horses with the custom map. I was disappointed when I only made 135.7 with a full system and no map. I was at 132.5 stock. The track I run at is around 4500 feet so a sea level run would show slightly more even though the computer(dyno) corrects for altitude. If I find a scanner I'll upload the dyno chart.
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post #7 of 15 Old 11-13-2003, 10:32 AM
 
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Re: Stock air filter vs BMC race air filter

For those that don't know who L&L is, Louie is one of the best dyno guys there is. *Dynojet frequently uses him for R&D.







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post #8 of 15 Old 11-13-2003, 7:11 PM
 
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Re: Stock air filter vs BMC race air filter

By the way, Louie from L&L told me the BMC was costing me 2-3 horses compared to stock, but he's just a tuner who builds race engines and does dyno tuning for race teams for a living, so what does he know(LOL). On a more serious note, anyone who's near L&L. the guy is amazing at tuning and doesn't B.S. you by selling you somthing you don't need. I've seen him do a 15 horse gain on an '03 R6 on race gas.
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post #9 of 15 Old 11-14-2003, 8:14 AM
 
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Re: Stock air filter vs BMC race air filter

On race gas? Doesn't he know that race gas actually loses HP and that he should run the lowest possible octane stuff that he can find. I have read several knowledgeable posts on this forum and a few others that say race gas is a total waste of money . . .
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post #10 of 15 Old 11-14-2003, 8:18 AM
 
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Re: Stock air filter vs BMC race air filter

Quote:
abtech : On race gas? *Doesn't he know that race gas actually loses HP and that he should run the lowest possible octane stuff that he can find. *I have read several knowledgeable posts on this forum and a few others that say race gas is a total waste of money . . .

You kill me...

Z...

You're f%#&king up my Chi...
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post #11 of 15 Old 02-26-2007, 11:51 AM
 
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Re: Stock air filter vs BMC race air filter

Quote:
Originally Posted by Zeeman View Post
I believe running a 'race' filter on the street is a bad idea - it lets a lot of crap flow through to the engine, along with the extra O2...

Z...

Hello... just wondering was there any results for the difference of BMC race filter or stock filter?

For those who haven't replace their filter, is it really worth to replace to BMC (race) filter?
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post #12 of 15 Old 02-27-2007, 5:43 PM
 
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Re: Stock air filter vs BMC race air filter

Quote:
Originally Posted by FullForce View Post
yeah, i would like to see a BMC VS STOCK back to back equal dyno runs
Hooligan Bike Tech

back to back runs on a 1000rr stock filter to bmc race
definite peformance gains

as far as race filters for the street

clean them more often
problem solved
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post #13 of 15 Old 02-27-2007, 7:51 PM
 
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Re: Stock air filter vs BMC race air filter

I never tried the "race" version of the BMC, all I know is the one BMC I am using is crapola compared to a stock paper filter. Too restrictive.
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post #14 of 15 Old 02-27-2007, 9:39 PM
 
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Re: Stock air filter vs BMC race air filter

then you are using the street version

however have you actually flow tested the street version compared to the stock one or are you speculating
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post #15 of 15 Old 03-03-2007, 8:38 PM
 
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Re: Stock air filter vs BMC race air filter

Quote:
Originally Posted by baxsom View Post
Hooligan Bike Tech

back to back runs on a 1000rr stock filter to bmc race
definite peformance gains

as far as race filters for the street

clean them more often
problem solved
THANKS
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