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(05-08-2023, 05:17 PM)Enzofour_imp Wrote: "sports" filters are just for spending more money!
I recommend using the original Honda, or alternatively Hiflo
Totally agree. The Triumph T300's (older 90's Triumph's) forums and facebook pages are full of people getting poor running bikes on K&N pod filters, cut down airbox inlet tracts and all sorts. The advice every time is to go back to stock. The air inlet tract is so long it is behind the riders seat either side of the bike and is designed that way for a purpose. The airbox is a resonant chamber and plays an important part of the bikes inlet airflow. Mess with that and you mess with your engine. You will also get others claiming a 5HP gain while neglecting to mention that was at 9,000RPM with a massive hole in performance at 5,000RPM.
Great article, albeit a little old here: http://motorcycleinfo.calsci.com/Airboxes.html
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(05-08-2023, 06:29 PM)Tev62_imp Wrote: (05-08-2023, 05:17 PM)Enzofour_imp Wrote: "sports" filters are just for spending more money!
I recommend using the original Honda, or alternatively Hiflo
Totally agree. The Triumph T300's (older 90's Triumph's) forums and facebook pages are full of people getting poor running bikes on K&N pod filters, cut down airbox inlet tracts and all sorts. The advice every time is to go back to stock. The air inlet tract is so long it is behind the riders seat either side of the bike and is designed that way for a purpose. The airbox is a resonant chamber and plays an important part of the bikes inlet airflow. Mess with that and you mess with your engine. You will also get others claiming a 5HP gain while neglecting to mention that was at 9,000RPM with a massive hole in performance at 5,000RPM.
Great article, albeit a little old here: http://motorcycleinfo.calsci.com/Airboxes.html
Agreed that there are a LOT of people that do it wrong...BUT that doesn't mean EVERYONE does it wrong.
(05-08-2023, 06:29 PM)Tev62_imp Wrote: (05-08-2023, 05:17 PM)Enzofour_imp Wrote: "sports" filters are just for spending more money!
I recommend using the original Honda, or alternatively Hiflo
Totally agree. The Triumph T300's (older 90's Triumph's) forums and facebook pages are full of people getting poor running bikes on K&N pod filters, cut down airbox inlet tracts and all sorts. The advice every time is to go back to stock. The air inlet tract is so long it is behind the riders seat either side of the bike and is designed that way for a purpose. The airbox is a resonant chamber and plays an important part of the bikes inlet airflow. Mess with that and you mess with your engine. You will also get others claiming a 5HP gain while neglecting to mention that was at 9,000RPM with a massive hole in performance at 5,000RPM.
Great article, albeit a little old here: http://motorcycleinfo.calsci.com/Airboxes.html
YES, everything is designed with a purpose. But sometimes that purpose includes noise limits, fuel economy, or simply cost saving measures to manufacture.
SO- if someone understands what they are looking at, and does some testing & tuning- you can certainly say 'hey, I'm ok with a little more volume, fuel, time / cost' and get gains.
(05-08-2023, 06:29 PM)Tev62_imp Wrote: (05-08-2023, 05:17 PM)Enzofour_imp Wrote: "sports" filters are just for spending more money!
I recommend using the original Honda, or alternatively Hiflo
Totally agree. The Triumph T300's (older 90's Triumph's) forums and facebook pages are full of people getting poor running bikes on K&N pod filters, cut down airbox inlet tracts and all sorts. The advice every time is to go back to stock. The air inlet tract is so long it is behind the riders seat either side of the bike and is designed that way for a purpose. The airbox is a resonant chamber and plays an important part of the bikes inlet airflow. Mess with that and you mess with your engine. You will also get others claiming a 5HP gain while neglecting to mention that was at 9,000RPM with a massive hole in performance at 5,000RPM.
Great article, albeit a little old here: http://motorcycleinfo.calsci.com/Airboxes.html
Doesn't have to be. Just has to be done right.
I've proven that simply boring out the stock velocity stacks makes gains with no losses, no trade offs.
It's also already proven that the stock airbox intake horn is a restriction. Again- no losses in the powerband...just louder.
As for the air filter- I have a 'performance' filter (sprint) that I plan on dyno testing. I'll do numerous test. Stock, Sprint, No filter, etc...
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(05-08-2023, 11:56 PM)PowerDubs_imp Wrote: (05-08-2023, 06:29 PM)Tev62_imp Wrote: (05-08-2023, 05:17 PM)Enzofour_imp Wrote: "sports" filters are just for spending more money!
I recommend using the original Honda, or alternatively Hiflo
Totally agree. The Triumph T300's (older 90's Triumph's) forums and facebook pages are full of people getting poor running bikes on K&N pod filters, cut down airbox inlet tracts and all sorts. The advice every time is to go back to stock. The air inlet tract is so long it is behind the riders seat either side of the bike and is designed that way for a purpose. The airbox is a resonant chamber and plays an important part of the bikes inlet airflow. Mess with that and you mess with your engine. You will also get others claiming a 5HP gain while neglecting to mention that was at 9,000RPM with a massive hole in performance at 5,000RPM.
Great article, albeit a little old here: http://motorcycleinfo.calsci.com/Airboxes.html
Agreed that there are a LOT of people that do it wrong...BUT that doesn't mean EVERYONE does it wrong.
(05-08-2023, 06:29 PM)Tev62_imp Wrote: (05-08-2023, 05:17 PM)Enzofour_imp Wrote: "sports" filters are just for spending more money!
I recommend using the original Honda, or alternatively Hiflo
Totally agree. The Triumph T300's (older 90's Triumph's) forums and facebook pages are full of people getting poor running bikes on K&N pod filters, cut down airbox inlet tracts and all sorts. The advice every time is to go back to stock. The air inlet tract is so long it is behind the riders seat either side of the bike and is designed that way for a purpose. The airbox is a resonant chamber and plays an important part of the bikes inlet airflow. Mess with that and you mess with your engine. You will also get others claiming a 5HP gain while neglecting to mention that was at 9,000RPM with a massive hole in performance at 5,000RPM.
Great article, albeit a little old here: http://motorcycleinfo.calsci.com/Airboxes.html
YES, everything is designed with a purpose. But sometimes that purpose includes noise limits, fuel economy, or simply cost saving measures to manufacture.
SO- if someone understands what they are looking at, and does some testing & tuning- you can certainly say 'hey, I'm ok with a little more volume, fuel, time / cost' and get gains.
(05-08-2023, 06:29 PM)Tev62_imp Wrote: (05-08-2023, 05:17 PM)Enzofour_imp Wrote: "sports" filters are just for spending more money!
I recommend using the original Honda, or alternatively Hiflo
Totally agree. The Triumph T300's (older 90's Triumph's) forums and facebook pages are full of people getting poor running bikes on K&N pod filters, cut down airbox inlet tracts and all sorts. The advice every time is to go back to stock. The air inlet tract is so long it is behind the riders seat either side of the bike and is designed that way for a purpose. The airbox is a resonant chamber and plays an important part of the bikes inlet airflow. Mess with that and you mess with your engine. You will also get others claiming a 5HP gain while neglecting to mention that was at 9,000RPM with a massive hole in performance at 5,000RPM.
Great article, albeit a little old here: http://motorcycleinfo.calsci.com/Airboxes.html
Doesn't have to be. Just has to be done right.
I've proven that simply boring out the stock velocity stacks makes gains with no losses, no trade offs.
It's also already proven that the stock airbox intake horn is a restriction. Again- no losses in the powerband...just louder.
As for the air filter- I have a 'performance' filter (sprint) that I plan on dyno testing. I'll do numerous test. Stock, Sprint, No filter, etc...
That will be very interesting.
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(12-26-2022, 01:23 PM)Jgarciajr40_imp Wrote: I used one of those filters on my old Honda civic and it gave me nothing, but mass air flow sensor codes. Not sure if it’ll do the same on a motorcycle, but I’m personally not fond of their products.
If you read the cb1100 manual Honda recommends you simply blow your OEM filter with compressed air and call it a day.
MAF sensors came with hot film or hot wire … and K&N “oily” air filters are perfect killers for some of them.
Replaced plenty MAFs on cars, customer pay, while car still under warranty due to improper use, big buk$.
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(05-09-2023, 04:21 AM)peterbaron_imp Wrote: (12-26-2022, 01:23 PM)Jgarciajr40_imp Wrote: I used one of those filters on my old Honda civic and it gave me nothing, but mass air flow sensor codes. Not sure if it’ll do the same on a motorcycle, but I’m personally not fond of their products.
If you read the cb1100 manual Honda recommends you simply blow your OEM filter with compressed air and call it a day.
MAF sensors came with hot film or hot wire … and K&N “oily” air filters are perfect killers for some of them.
Replaced plenty MAFs on cars, customer pay, while car still under warranty due to improper use, big buk$.
MAF sensors came with hot film or hot wire … and K&N “oily” air filters are perfect killers for some of them.
Replaced plenty MAFs on cars, customer pay, while car still under warranty due to improper use, big buk$.
That's interesting. I've had a K&N on my 04 S10 for 16 years? Just don't over oil it when you clean it and they are fine.
Too many people try and put the entire can of oil back into the filter after they clean it, when it only needs enough to soak into the pleats.
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I can only tell you what I experienced.
Also, don't assume that single service interval use killed the AFS. I would say that prolonged use was lethal.
Don't remember seeing excessive oil, but also do not know what "oil service" those have received.. 
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(05-09-2023, 09:32 AM)Randy B_imp Wrote: (05-09-2023, 04:21 AM)peterbaron_imp Wrote: (12-26-2022, 01:23 PM)Jgarciajr40_imp Wrote: I used one of those filters on my old Honda civic and it gave me nothing, but mass air flow sensor codes. Not sure if it’ll do the same on a motorcycle, but I’m personally not fond of their products.
If you read the cb1100 manual Honda recommends you simply blow your OEM filter with compressed air and call it a day.
MAF sensors came with hot film or hot wire … and K&N “oily” air filters are perfect killers for some of them.
Replaced plenty MAFs on cars, customer pay, while car still under warranty due to improper use, big buk$.
MAF sensors came with hot film or hot wire … and K&N “oily” air filters are perfect killers for some of them.
Replaced plenty MAFs on cars, customer pay, while car still under warranty due to improper use, big buk$.
That's interesting. I've had a K&N on my 04 S10 for 16 years? Just don't over oil it when you clean it and they are fine.
Too many people try and put the entire can of oil back into the filter after they clean it, when it only needs enough to soak into the pleats.
Agreed, definitely do not over oil the filter substrate. They work fine when used properly over endless years.
That said, I prefer paper since most filters these days stay clean for a long time, unless you ride/drive a lot of offroad.
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The filter isn't the issue, as much as the exhaust. All this being said if you are trying to shave a few hundredths of a second at the drag strip go for it. If your looking to toast your friends on your favorite mountain rode, Spend your $$$ on tires and suspension. Loose the center stand. The filter needs an exhaust modification to make it worth doing much of anything. JMO.
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