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Buell Motorcycle Forum » XBoard » Buell XBoard Archives » Archive through September 08, 2004 » 12 Air Box Drilled Out On a 9 « Previous Next »

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Porker
Posted on Friday, August 27, 2004 - 02:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Hello all, I have been trying all the different combinations out and have some questions / comments. I rode my XB9R stock for two days then had the race kit installed , liked it.I then bought a new 12 box and tried it out, liked it, felt the difference. Next I drilled out my stock 9 box and put it on as a
Guinee Pig , noticeable improvement over the 12 box. With the noticeable gains from drilling out the box I felt drilling my 12 box out would be great. I swear I had more bottom end with the drilled out 9 box . anyone care to comment ??? I am tempted to buy another 12 box and leave it on or just put the drilled out 9 box back on. I even had my TPS reset after drilling out the 12 box, no difference. Just a not too, my dealer didn't charge for the reset.
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Glitch
Posted on Friday, August 27, 2004 - 03:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Assend dynos don't always tell the whole story.
Hard to say as I never drilled out my 9 box only my 12.
Food for thought though.
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Porker
Posted on Sunday, August 29, 2004 - 02:23 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

True True True , anyone else have any comments ??I really want to know if the 12 box is best left alone or Swiss Cheesed. Dyno graphs anyone ??
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Lpowel02
Posted on Sunday, August 29, 2004 - 01:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

i ran my 12 airbox as-is for a while then gutted it...I didn't drill it, but cut large sections out of it, leaving enough for it still hold/seal the air filter in.

took it for the first ride yesterday...it's much louder but pulls just as hard if not a little more down low...I haven't had a chance to ride steady at 4K or so for long enough for the ECM to adjust to the change, but I'll let you know if any big changes occur.
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Odie
Posted on Monday, August 30, 2004 - 09:22 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I'm going to cut everything away except the very top and bolt it down. I also drilled my exhaust out this weekend. Made it a little bit louder and hasn't affected anything yet (no fouled plugs, missing, etc.) K&N coming in this week along with some Buell frame pucks.....I can hear the wife already.............
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Ingemar
Posted on Monday, August 30, 2004 - 09:32 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

That was exaclty my plan too Odie.

I planned to reroute the oil hoses and use those holes for bolts to hold the plate over the airfilter down.
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Odie
Posted on Monday, August 30, 2004 - 10:47 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

This is what I plan on doing this week using my 12S airbox top.Draoidh did this one. Looks good and he said he hadn't had any problems.

(Message edited by odie on August 30, 2004)
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Odie
Posted on Monday, August 30, 2004 - 10:47 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I'm also going to make a heat blanket for underneath the bottom of the airbox.
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Odie
Posted on Monday, August 30, 2004 - 11:03 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I'm thinking about this mod. It would be rather easy actually.
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Cowtown
Posted on Monday, August 30, 2004 - 03:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Here’s my version. It was cloudy when I took the pics, I think they would have turned out better if the sun were out. One thing I noticed is the airbox looks a lot lighter blue than the City-X with the inner airbox under it.




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Boulderbiker
Posted on Monday, August 30, 2004 - 03:51 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Alright, that is just cool looking. That almost makes me want to paint my bike blue and put that setup on it...
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Tucsonxb9s
Posted on Monday, August 30, 2004 - 03:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I think Cowtown has found out what makes the CityX airbox cover cool! Nice work...what's the rest of the bike look like? It is a 12S right?
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Lazyme21
Posted on Monday, August 30, 2004 - 04:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Yeah, you can tell by the handle bars and there is no fairing on the front, has to be a 12S.

Looks real sharp man, I like!
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Cowtown
Posted on Monday, August 30, 2004 - 06:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Yes, it’s a black 12S. I also have the City-X flyscreen. I want to mount a chrome horn centered above the headlights and behind the flyscreen. When I finish I’ll post pics. Glad you like it. Other than the City-X covers the bike is mostly stock, just filter, ECM, Drummer and frame pucks. Even if someone doesn’t like the hero blue, the airbox conversion is a fast and cheap modification.
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Lightisright
Posted on Monday, August 30, 2004 - 07:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Do you still have the amber wheels? Could you post a pic of the full bike? I would imagine that your setup with the black wheels would look just awesome.
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Glitch
Posted on Monday, August 30, 2004 - 07:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Cowtown, what did you do with the vent tubes?
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Xbolt12
Posted on Monday, August 30, 2004 - 10:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Ok, Heres my question with all due respect:

Everybody seems to be talking about airbox drilling and open filters, and I get what the aim is.

After looking at my xb12r intake setup, it appears that the stock air box is roughly the same size as the air box cover (the colored one)-the only significant difference in volume I see is where the depression is for the exhaust valve actuator.

So.... If the outer cover is almost the same volume and the outer cover has no external holes or scoops added, how does extra air flow get into the air box by drilling holes? Aren't they basically covered up by the outer cover anyway?

Can someone clarify this and also does anyone have actual before and after dynos?

xbolt12
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Bubabuell
Posted on Monday, August 30, 2004 - 11:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

That does look sweet. The dark frame compliments the blue cover much better than the light grey does IMO. Love to see some more pics as well! And can I ask the price of the blue cover?
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SouthernMarine
Posted on Tuesday, August 31, 2004 - 12:43 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Xbolt, some people either buy a new Airbox cover (outer cover) with holes in it or cut holes in it to allow more air to be forced into the airbox.

(Message edited by SouthernMarine on August 31, 2004)
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Cowtown
Posted on Tuesday, August 31, 2004 - 12:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Here’s how I ran the breathers. I turned the valves so they are pointed at each other along the right side of the frame. I ran a hose between them with a T in the middle pointing down. I cut just enough hose to use as a connector to attach another T with the ends pointing down and forward. I ran a clear hose down a couple of inches past the frame so I can see when any oil collects and plugged it. I ran another hose forward and up over the rocker cover following the curve of the frame along the front and then back along the left side of the frame. I attached a crankcase filter behind the coil.

I don’t have the black wheels. I agree they would look good, but the amber wheels do look nice when turning. I’ll take some pics of the entire bike after I get the flyscreen on.

I bought the airbox cover and flyscreen from “Daves” in Appleton, WI for $246 including shipping.
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Glitch
Posted on Tuesday, August 31, 2004 - 12:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Thanks !
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Bubabuell
Posted on Tuesday, August 31, 2004 - 12:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I bought the airbox cover and flyscreen from “Daves” in Appleton, WI for $246 including shipping.

Wow, that's pretty reasonable.
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Hogs
Posted on Tuesday, August 31, 2004 - 12:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Cowtown I wonder why you wd. choose to filter one end and not the other as u can suck dust etc. up the un filter end?? Wd. it not just be easier to run the hoses in conjuction to a small catch "T can" that one could drain if needed and one filter...
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Odie
Posted on Tuesday, August 31, 2004 - 01:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I run a small, fabric valve cover breather filter on my Wide-Glide. Works good. Picked it up at Auto-Zone.
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Cowtown
Posted on Tuesday, August 31, 2004 - 01:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I ran a clear hose down a couple of inches past the frame so I can see when any oil collects and plugged it.
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Hogs
Posted on Tuesday, August 31, 2004 - 01:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Cowtown MY over LOOKED Sorry Buddy :-))
Makes Sense......!
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Hogs
Posted on Tuesday, August 31, 2004 - 01:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

He has the other end of it Filtered No plms.. :-)
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Cowtown
Posted on Tuesday, August 31, 2004 - 01:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I ran another hose forward and up over the rocker cover following the curve of the frame along the front and then back along the left side of the frame. I attached a crankcase filter behind the coil. Two valves, connected to one hose. Then two hoses from that, one plugged, one filtered.
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