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I’m sure it’s been asked before, I’m just too lazy to sift through. I’m in the market for a new air cleaner for my 2009 FXDB. Any suggestions would be greatly appreciated, thanks!
Much of this will come down to the style of A/C you prefer; round, a forward facing 'heavy breather' style, etc. What sort of look are you after? Is leg clearance an issue? Do you plan on bumping up your engine in displacement/doing performance mods?
What ever style you do purchase, seriously consider venting crankcase gasses to atmosphere. Most A/C's are EPA compliant so the crankcase gas is routed back to the A/C. Venting to atmosphere will lower intake temperatures and keep the hot, oily, oxygen depleted gas from junking up your A/C, intake, and engine. If you do select an EPA compliant A/C most can be modded to vent to atmosphere.
Some manufactures, like DK Custom, have A/C's that are set up to vent to atmosphere right out of the box. I run their 587 with a round cover and use an under A/C filter for external venting; it's very low profile so no contact with my leg, and provides the engine will all the air it can use...
You'll find lots of Dyno Charts and good info to have when looking to upgrade A/C Systems.
Also, as previously suggested, add an External Breather System if you haven't already. You will increase overall engine life and your bike will thank you!
i have the stock heavy breather on my lrs but I don't like that design and I don't want to go with another ac that's gonna rob me of performance.
Ive never heard anyone mention this, but it's worth noting that I have forward controls, and when I let off the throttle from wide open throttle, my right knee hits the back edge of the ac in just the right spot to **** me off. It's like your funny bone, only in your knee.
Much of this will come down to the style of A/C you prefer; round, a forward facing 'heavy breather' style, etc. What sort of look are you after? Is leg clearance an issue? Do you plan on bumping up your engine in displacement/doing performance mods?
What ever style you do purchase, seriously consider venting crankcase gasses to atmosphere. Most A/C's are EPA compliant so the crankcase gas is routed back to the A/C. Venting to atmosphere will lower intake temperatures and keep the hot, oily, oxygen depleted gas from junking up your A/C, intake, and engine. If you do select an EPA compliant A/C most can be modded to vent to atmosphere.
Some manufactures, like DK Custom, have A/C's that are set up to vent to atmosphere right out of the box. I run their 587 with a round cover and use an under A/C filter for external venting; it's very low profile so no contact with my leg, and provides the engine will all the air it can use...
I don't disagree with an external vent but setting up the vent in this fashion is no good. Eventually those lines will fill with oil, then saturate the filter. Then at some point begin leaking from the filter onto the case and exhaust.
Catch can would be the correct way, or you could run a drain tube down the bike and leak on the ground. Or leave it as is and eventually drip on your case/exhaust.
I don't disagree with an external vent but setting up the vent in this fashion is no good. Eventually those lines will fill with oil, then saturate the filter. Then at some point begin leaking from the filter onto the case and exhaust.
Catch can would be the correct way, or you could run a drain tube down the bike and leak on the ground. Or leave it as is and eventually drip on your case/exhaust.
I would run a catch can if it were me. Actually, that's what I have, I just need to get off my *** and install it. Then just empty it when I stop for gas. You won't get a whole lot of oil out of it, otherwise you'd keep having to add oil to your bike. That's why a lot of people don't run cans. I've heard mixed reviews on this. Some people have no problem at all, others complain that the side of their bike gets coated with oil.
I did what Tincup did, just use a different style filter. It’s all about preferences.
Has nothing to do with preferences. At the end of the day, this is a horrible design. The whole point of doing this is to keep the oil from cycling back into the motor via the throttle body. The oil still needs to go somewhere though. Gravity will pull the oil to the lowest point, the filter. This is just the cheapest/easiest solution. At some point that filter will saturate with oil and start leaking. How long that takes depends on how hard you ride, how often, and weather conditions.
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Air Cleaners??
