05-08-2023, 11:56 PM
(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...