Re-route hoses

[Bordsnbikes]

Good question Rocco, I guess I don't know off hand but see where your coming from. What if you were to make it like and old school road draft tube? Hang in down at the bottom so as the air blows over it, it creates vacuum to pull it out. Maybe use a little piece of hard line at the end so it wouldn't whip in the wind. It would drip a little, you wouldn't be able to use the catch can to do it that way.

 

[LeFox]

if you place the end where it open, the air getting across creates enough vacuum.

the idea behind the re-route is not to create more hp, but to stop the exhaust fumes from being pushed back into the engine making less room for fresh, cool, usable air.
this makes the burn process run more efficiently and creates more hp by itself, without running an additional vacuum pump.

vacuum pump can be seen as 'the next step'...although nobody seems to have the need for it, since the gains would be minimum.

 

[Roccodart440]

Something I ran across on You Tube.

 

[09XB12Ss]

I originally did this mod to stop making a mess in the airbox. I wasn't expecting to see any improvements as far as the engine running better. The explanations were perfect. Got all the parts at Napa. They had everything on the list. After having done the mod, I went out for a ride to see that nothing was done wrong. I was truly impressed how much smoother the engine ran. What a difference. Thanks guys with coming up with this mod. I plan to take a look in my V-rod airbox to see if they did the same setup.

 

[The Tin Man]

Ok so I decided to start the mod...I have to head to the store in a bit and i decided to take apart the bike first. I have everything off except the bottom of the airbox with the big horn in it. How do i get it off from here. The horn seem to be connected from below. The sensor is connected there as well. Some help here guys?

 

[josnow]

the bottom of the velocity stack (I am assuming that's what you are calling the "big horn") has two "gaskets" that are built as part of the velocity stack. The base plate of the airbox is sandwhiched between the two gaskets and comes up and over the velocity stack. Start pushing the gaskets through base plate, once you start one corner, it should start going pretty easy. The sensor doesnt have to be disconnected, there was enough slack in the wires, I just carefully placed mine to the side.

 

[The Tin Man]

Here's a vid i did after doing the mod...hopes this makes it a little clear for some guys.

 

[maybebuell]

dont need a filter on breather its a positive flow out oil breather does not suck in only pulses out

 

[Bill2]

BTW this mod has been done on evo sportsters a long time.Its a epa thing just to help meet ever tightening pollution specs dumping crank case gases back in the intake. It also causes the tops of your pistons to carbon up faster when that crap is plumbed back in your air intake. So this is a great more in more ways than one.

 

[Bordsnbikes]

Maybebuell, it goes in and out, you just can't tell it sucks in.

 

[Buellme]

Tin Man great vid! it was just what i needed to get where everything goes! Thanks! [up]

 

[poppinsexz]

I ran mine out the front and down to a catchcan and breather that I mounted on the front of the oil cooler

 

[maybebuell]

Maybebuell, it goes in and out, you just can't tell it sucks in.

....sure about that do some research... might pulse 1 foot out and 1 inch in it will not suck anything into motor...why do you think the air box fills up with oily crap or the filter after a while will get damp with oil and sand stick to it....thats how a motors breathing system is designed

 

[Sayjackb]

Did we decide whether i am safe to just plug the line or should i definently have a filter on there? Or can i just use the filter as the catch and the intake?

 

[LVsleeper]

I just ran my line down next to my oil cooler, Teed the filter off and then ran another 2"-3" of hose off the T and a plug fitting at the end of the hose. Remove the plug to drain any emulsified oil in the drain tube. also I've heard of people terminating the hose with a filter on the end and using it as a filter/catch can and replacing the $5-7 filter every 6 months or so with no problems, I'd say this is probably a better option than just plugging the line as the pressure would probably just shoot the plug out of the hose unless there is a filter on there.

 

[keisersozae]

did this mod the other day along with replacing my factory headlight bulbs. easy easy easy, and man can i tell a difference. since my race ecm, exhaust, and k&n, my bike has stuttered below 2500 if you weren't in its ass. no more. thanks for the detailed instructions. my bike runs better and it thanks you.

 

[Sayjackb]

Ok, i give up... where the crap do i get the little breather filter? I tried... OSH, ACE, NAPA, KRAGEN, and another ACE!!! not one had it... And I'm not the type to wander around aimlessly looking. So i asked for help, and everyone was baffled... Then i wandered around each store on my own... Nothing...

 

[dave_xb12r]

You'll find them in your local auto parts store in the "rice" section. And sometimes they have larger and more expensive ones near the edelbrock crap.

Or you can order a good one from ABB here

 

[Bordsnbikes]

I'm positive it goes in and out, not 12 inches to 1, maybe more like 2 to 1. Your right though, it won't be sucking in things, but the dirt and grime will work it's way up there. I've got this action going on on my sportster, I've got first hand knowledge where it's really easy to get to and see inside.

 

[Sayjackb]

One word for the re route... Heavenly! Thanks for the help all.