Thank you @Blitz. You are, as ever, a diamond mine of information. Without you and others on this forum, I’d have no idea what I was doing and no confidence to attempt any modifications of the bike.@AdamB if paper filter replacement is a hassle ……..
I’m not sure about regulations in England when it comes to solvents … if you can use a good chemical cleaning agent ..(usually chlorine based).. and an ultrasonic tank large enough to submerge your filter you can successfully clean and reuse your paper filters. I did this in the early 70’s many many times…. … I think we used CTC ( I think that was CarbonTetraCloride ) but any solvent that won’t melt the filter parts ..(plastic etc.).. and will then evaporate when the filter is removed from the tank will work. Alcohol … both Isopropyl and isobutyl alcohol will work as does white gas (camp stove fuel)… I think that is just filtered kerosene or JP5 … The chemistry you choose will need to be able to dissolve the grease and oil that will no doubt be abundant on the filter and allow the dirt to escape with out damaging the paper. FYI anyway, ……………… Cheers ………………………… Blitz
@AdamB .. our fellow rider and Mate @Kowalski is spot on …. The CanBus (as I understand it) uses the exhaust oxygen sensor ..(on the exhaust pipe).. to determine if the current gas/oxygen mix is efficiently being burned … if it’s not then the duration signal to the fuel injector is modifyed accordingly and the fuel mix is enriched or leaned out. The logic is: if the airflow is further un-restricted by the use of a more open filter element than the stock one it’s possible to pack a bit more air into the cylinder each stroke … more air more fuel more power. The logic is sound and I’m sure there is dyno-data somewhere to back it up … but I’m also pretty sure unless your tuning a competition bike for a race the amount of gain in power will be very small for what it costs to get there. When competing for prestige and prize money to survive ..ever HP counts. When making a run to the deli for a sandwich … not so much ………Bon appetite’ ………………………………. BlitzThe benefit, as I understand it, is significantly improved airflow in to the combustion chamber. What I don’t understand is (i) how the engine knows to adjust the fuel flow to match it, and (ii) whether the increased airflow comes at a cost, for example perhaps engine wear through less efficient filtering out of dust/dirt?
The DNA filters are washable so you don’t need to replace them like paper filters.