| Author | Message | ||
     Jerseyguy |
I read the multitude of posts regarding airbox modifications and decided to give it a try myself. I already have a Drummer, K&N and race ECM. I also used the 12 airbox before this project. I CNC'd a top out of 1/2" Lexan and tapped the ends of two pieces of stainless rod for 1/4 20s. I then cut away alot of the air box bottom so as to let the maximum amount of air get through and around the small gap under the "tank". My initial SOP impression is that it is at least as good as before and maybe better. It seems a bit more anxious to point skyward when just nailing the throttle at 2500 to 3500 rpm. I honestly can't be sure though. It is alot louder when you nail it but I don't really notice much difference when cruising. I'm thinking of making a duplicate of the 12's airbox nipple to see if that has an effect. Steve   Just inserting a space between photos to keep page from going over-wide  (Message edited by blake on August 21, 2004) | ||
| Glitch |
Good goin' Jersey. Nice work! I then cut away alot of the air box bottom Good thinkin' Now you need a City Cross cover to show off your handy work with the stack and all. | ||
| M1combat |
The 12 style nipple will most certainly have an effect. I have heard that the stock 12 box has the nipple offset from the center of the V-Stack a little bit. You may want to reproduce this. Some time soon I will be cutting the section of the 12 box that seals to the filter and holds my exhaust valve controller out of the rest of the airbox and securing it like you have. I hadn't thought about it, but I'll probably cut down the lower airbox as well. | ||
| Danny |
I wonder if Deanna would let me do this to our CityX demo?  The scary thing is... probably!! Danny 95 S2 02 V-Strom Leading demos on an '05 CityX | ||
| Jerseyguy |
If the CityX cover had no "X" and was smoke instead of blue, I'd get one in a minute. | ||
| Jerseyguy |
M1, Can you see that little center dot above my velocity stack? Its the exact center of the circle that defines the front of my filter cover. When viewing that dot directly from above it is slightly rearward from the center of the stack. I measured the location of the 12's nipple to the front of where the filter sits and the nipple is slightly forward. My conclusion is that the 12's nipple is, in fact centered (within reason) on the throttle body. Kudos to the Buell CAD jockey. | ||
| M1combat |
Cool beans then . For what it's worth, I'm sure you'll get a noticeable difference . | ||
| Dj_rider |
sam your links are messed up  | ||
| Sammigs |
Let's try this again... This is what I did to retain the 12 nipple.     | ||
| Fed |
don't know if this makes a difference butt.... on my F.A.S.T. intake ,air can enter directly thru the top and sides of the velocity stack i had a 12 cover on and it looks like the air only has about an inch of clearance between the nipple and the stack.maybe thats what slows the air down or volume. ......hope i said that right not an engineer just a parts guy . | ||
| Hogs |
Sammigs that looks pretty good, just wonder though why you did not open the air filter up around the back and sides more any reason? That outer cover though could be a bitch in a snow storm :-) | ||
| Sammigs |
No reason, I just thought 5 holes would be enough. I have no idea if it's too much or not enough. I also drilled small drainage holes in the very rear of the lower half. (might help with snow extraction ) | ||
| Hogs |
Right on Sammigs , Snow season is on the way.. :-(( | ||
| Southernmarine |
If you cut the holes in the airbox, do you need to cut holes in the airbox cover (faux tank). If this is a mod I eventually do to my 12, I will want to get a cover that has the vents in the front, preferably something that can be closed if necessary. | ||
| Stonecoldbuellin |
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| Sammigs |
What's your point Stone? | ||
| R1DynaSquid |
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| R1DynaSquid |
What's your point Stone? He's shillin. | ||
| Socoken |
you guys are having way too much fun with this air intake thing. how much air do you think these bikes need??? my 260hp 5.9 liter dodge ram motor has a smaller intake for crying out loud. | ||
| Sammigs |
Is that 260 h.p. with the Tornado fuel saver installed?  | ||
| R1DynaSquid |
And nology wires  | ||
| Stonecoldbuellin |
swing n a miss | ||
| Odie |
My 300+ hp 1978 AMC(yes,AMC)5.9 liter 360 in my Jeep has a big, wide open K&N!!! Headers also help, along with Edlebrock intake, carb, etc. Point is more air in and out, more power!!! Plus, we are havin' fun but a little on the cheap too so that makes it even better!! Tornado...  | ||
| Sammigs |
Stonecold, read this and remember I'm not being sarcastic but just asking a question. 1) Again, whats the point by posting that pic? 2) What have you shown me that I don't already have? That nipple is already in the 12 air box. And although the factory velocity stack is made out of rubber, it continues to work just like the fancy one. | ||
| Jerseyguy |
Fed - When I made my copy of the rubber stack in aluminum (which made no gain), I did a solid model of the stock stack geometry and the 12's airbox nipple. The gap you refer to is small - about .59". Alot of people have offered opinions, but I still don't understand exactly how this restriction works.   (Message edited by blake on August 21, 2004) | ||
| Darthane |
The nipple smooths the airflow into the throttle body. Without it you'd get turbulence at the velocity stack inlet as the air rushing in from all sides hits itself before being sucked down the tract. The inlet opening size helps dictate the speed of the incoming air. Go get out your shop-vac and use the 2" hose for a while, then pop a 1 1/4" hose adapter on it. Same engine running at the same RPMs sucking in the same amount of air, but it's moving faster due to the tract size. | ||
| Leebridger |
Hi Ya All Anyone got any figures on the power and torque comparison of- XB9 with full race kit & with a drilled/cut 12 airbox lid COMPARED to A standard XB12 ? Just wondering how much the difference is compared to the cost ? Lee | ||
| Stonecoldbuellin |
Actually sam i was showing jerseyguy not you and trollboy. And squid for your information they were buell pro race wires. And they were FREE. And they worked to fix my rough low rpms. (Message edited by stonecoldbuellin on August 18, 2004) | ||
| Cowtown |
I ordered a City-X airbox cover and flyscreen from Dave last week. I’m going to cut off the entire bottom of the airbox like Jerseyguy did. I’m thinking of mounting a chrome horn behind the flyscreen centered above the headlights. Dave said it could take awhile to get the covers, but I’ll post pics when I’m finished. It’s impossible to post anything original on this tread. You guys are to innovated. | ||
| Cowtown |
BTW has anyone removed the Buell decals, if they can be called decals, from a XB airbox cover or flyscreen? Did you use heat, alcohol or what? |
