| Author | Message | ||
     Macbuell |
Can anyone tell me the difference between the 07 airbox and the 06 airbox? My 06 airbox has slots cut into the right side and I had heard that the 07 had them cut into both sides. Is this true? I was thinking of cutting these slots into the left side of my 06 airbox. Could this have a negative influence on air flow? Thanks. | ||
| Beachbuell |
True! Bike may run lean! | ||
| Macbuell |
I already have the Race ECM, Filter and Special Ops pipe installed. With those installed I would think that the bike wouldn't run lean. | ||
| Midknyte |
ECM was remapped for the extra cuts in the 07 box as I recall | ||
| Elff |
Alot of people have done open Airbox mods [me included] without re-mapping their ECM and have had gains in power without running into a lean condition. So I dont think that would be an issue. | ||
| Ds_tiger |
I have a race kit on my 06 Ss. Saw the hole mod new for 07 models, an I got busy with a 1 1/2 inch hole saw and put 2 holes on the front left and on rear left opposite the stock holes on the rear right (3 holes total) WOKE the bike up noticably. I did not notice any ill effect running or on the amount of "soot" or lack thereof (if lean) Happy I did it!  | ||
| Thespive |
Anyone have pics of what you are talking about??? --Sean | ||
| Macbuell |
Bump. Pics would be great. Thanks. | ||
| Aj06bolt12r |
we want pics! we want pics! ... please ... thanks  | ||
| Ds_tiger |
OK Fellas- Here you go! Pppptttttt     | ||
| Ds_tiger |
sorry meant to include this>>  | ||
| Ds_tiger |
*Sorry* I lied in my previous post- 4 holes new, not 3 per pictures  | ||
| Macbuell |
Thanks Ds_Tiger. I think I will be working on this project this weekend and this helps a lot. | ||
| Txfatcat |
hey Tiger, you stated that it woke the bike up. What was it that you noticed????? | ||
| Ds_tiger |
bike liked to "pick up revs" a bit quicker than before Like if the bike had a "4 pound flywheel", it now felt like a 2 1/2 pound flywheel- Breathed a whole lot easier. In my opinion- My thought was- I can drill holes till the cows come home, but what makes sense (REF the 2007 airbox) and try for that- which is the unscientific method I reached here. For me- worked great. I guess I could drill even more holes, but I stopped where I did and am happy with it. | ||
| Txfatcat |
sure that makes sense and buell cut holes on the other side for some reason so it has to work. I have been trying to decide about doing this but the dremel is so messy and time consuming but i think i will do the hole saw trick tomorrow. thanks for the input and the picts | ||
| Aj06bolt12r |
Thanks for the pics, but why not just remove the box completely? Or if thats not possible cut almost all of it away instead if drilling a few holes? I dont see how it could get too much air, you would think the fuel injection system could compensate for such a miniscule change, its not like you are going to a bigger throttle body or something. Am I off base here? | ||
| Lenb |
why not just remove the box completely? Or if thats not possible cut almost all of it away instead if drilling a few holes? Because the induction noise would give you a headache every time you rode the bike. | ||
| Aj06bolt12r |
I hope that was a joke. I seriously doubt that you would hear any induction noise over any aftermarket exhaust note, and if u still runnin the stock can why bother with the air box? But even if u did mod your air box with stock exhaust u would still never hear any induction noise once you got out of first gear on account of wind noise. And even if everything else i said was wrong you still wouldnt have much of any induction noise to speak of accept at w.o.t. and then who cares? Your bike is supposed to make some noise at wot, its not a caddilac!  | ||
| Starter |
I got a Buell Race pipe and half of what I hear is induction ROAR!!!!!1 | ||
| Thespive |
Anyone have a pic of a 2007 box? Curious to see how Buell did it. --Sean | ||
| Aj06bolt12r |
Hmmm. I just find it hard to believe that its that loud! I mean if you are hungry enough for enhanced performance to get out the hole saw then why not take the plunge and remove it completely, or at least as much as possible? Is yours completely removed starter? If so do you have any pics of what that looks like? Is the stock box used for any purpose other than muffeling buells apparently jet liner taking off loud induction noise?  | ||
| Lenb |
I hope that was a joke. I seriously doubt that you would hear any induction noise over any aftermarket exhaust note No it wasn't a joke. Designers use airboxes, snorkels, etc to muffle induction noise to help meet noise laws. Induction noise is not only surprisingly loud, but unlike an exhaust note, which can be a sweet sound, is usually an offensive, ear-drum bashing, booming roar that earplugs cannot block out. What makes it especially annoying on a Buell is that the source of the noise is directly under your helmet which funnels the noise to your ears. Yes, I am as hungry for more performance as the next guy but the headache an open airbox gives soon wears thin any *slight* performance advantage it gives. PS - I have an '06 XB12 with a race muffler. I used a dremel to cut an identical set of retangular holes on the left side of my airbox to the stock holes on the right side. At the time I thought about adding more holes but I'm glad I didn't as the noise just borders on annoying. I suspect just one hole more would be too much. (Message edited by lenb on August 31, 2006) | ||
| Captainxb |
Check this previous discussion on this same subject; http://www.badweatherbikers.com/buell/messages/32777/214529.html | ||
| Txfatcat |
I went ahead and drilled the holes like the pictures shown above. First thing i noticed was it is definately louder. Its alot deeper tone now due to induction noise. I did also notice was seems like to be that i lost some low end power. I went out on a long run last night thinkin that the ecm had to update for the increased volume of air coming in. it seemed to be better this morning but i am not sure....just woke up. My xb9 used to run head to head with my friend scott's xb12 so i will have to hook up with him today and ride a little bit to see if thats the case. I did notice on the top end that it jumped up to 120mph real quick but when i roll the throttle on at about 75mph in 5th gear it just acts like a pig. Just my two cents. Can anyone elaborate on if my statements and findings make any sence or if this is the case with how the ecm reacts???? | ||
| Kowpow225 |
I can vouch that it's a bit 'piggish' in the rpm range you're talking about. (similar setup) I think it has more to do with the race kit 'hole' than the airbox. I've tried both and can say the open airbox may contribute to around 15% of that 'hole'. The rest is mostly the pipe. | ||
| Stevexb |
I would agree, you will loose power on low rpm when you just add holes to the airbox. However it will be gained again at the higher rpm. Here's a link to a dyno chart of a standard XB12s and same bike 5 mins later with Ultimate airbox. http://www.steveturnbull.co.uk/buell/xb12/dyno/XB12s%20Stock%20vs%20Open%20Airbo x.jpg There is more power from abbout 5250 upwards with the open airbox, but less until then. This is a completely open airbox, not a standard one with holes in. and for these runs, the ECM was not remapped to add fuel. I suspect that with the ECM remapped, it may be possible to retrieve some of this lost power. Steve (Message edited by SteveXB on August 31, 2006) | ||
| Mesafirebolt |
Well if you open it up and dont like it, cover the holes with metal "speed tape" the stuff works great! After swisscheesing my caddys airbox, the ecm would get too hot (it used the airbox to flow air over it) in the summer time and I would just tape it up for those 3 months. my 2 cents. | ||
| Pwnzor |
I just use duct tape, can't see through the outer cover on mine, so no foul. (Message edited by pwnzor on August 31, 2006) | ||
| Txfatcat |
I think I am going to ride it a little bit more and see what happens and how i like it. I may decide to close them back up afterwards. Thanks for all the info and the dyno sheet | ||
| Bébèrt |
Just installed an open airbox on my city and the difference is amazing. Got rid of that dip in the power-curve around 3000 rpm and you get adrenalin sound out of the airbox.(after a "ECM" learning period) The power increase is noticeably, not masses of horses but a smoother power curve and a slightly faster gas response. Ad to that the cheer noise that comes out your airbox when you open the throttle ... the whole thing resonates like hell so you'll get the impression of going even faster.(you get normal sound level when at constant speed)   | ||
| 72ssabody |
I think some people here need to read up on Bernoulli's and Boyle's Law. | ||
| Bébèrt |
We are always flying as a rocket on our Buells no matter the pressure or the temperature. As for the resonance I meant only the kind of sound, not that it is really working as an resonance intake pipe. (that works almost the same as an resonance exhaust pipe on a 2stroke engine.) 'This intake resonance is very pronounced on a single cylinder engine, particularly when recorded and played back at a slower speed, which we used to do. It sounds like Bop, Bop, Bop. ' | ||
| Gdmix |
I just installed the 2007 air box cover (and Buell race filter). I think it was well worth the $35. The bike seems more responsive (placebo?.) It is noticeably louder. I doubt I will ever install an open air box kit. This air box is about as loud as I want it to be. Also it seems to have plenty of inlet. Here are some pics I took during the install: http://members.cox.net/gdmix_misc/Buell/Airbox/ | ||
| Tintin74 |
Sorry to dig up the post, I'm looking at the airbox mods for my 05 XB9R, not for performances purposes, but wondering if I could get that fuel capacity increase too... Anybody tried that yet? Writing that I get a weird theory: could it be that the 06 holes were on the right side because originally the air came from the left side. It seems to me that Buell does a lot of incremental design so adding the new front grated airbox cover in 06 they remembered they had designed the holes because of the position of the previous intake and updated them one year later... After all you've been writing here I guess the 08 would be on both side but of a smaller size to reduce the noise... |
