| Author | Message | ||
     Kds1 |
Jerseyguy,great job on the stack!!! more food for thought,the length of the stack usually only matters when it is all that is used, your total intake length is all the way down through the tube of your frame, need to smooth that entry as well.because air has to go through there before it ever gets to the stack. stack length looks good ,main thing is to not shroud it by the top of the lid..KD | ||
| Martin |
Just a thought, but might the rubber trumpet not flex on purpose? (I know of some exhaust cans that flex or resonate to accentuate the natural harmonics in the flow-I couldn't say if that is what puts the drum in drummer!) If the Jersey Funnel simply replicates the original then I wouldn't expect it to make a huge improvement. Lengthening the trumpet to imitate the lowered roof of the 12 lid could give good low-rev results at the risk of strangling the top. How about making-up a 'stalactite' that'll bolt or stick into a 9 box lid (if you haven't got a 12)and couple it with a stack that has a much more rolled-edge to give the most progressive transition and gradual diminition of surface area - a bit like the a/r ratio on a turbo-Bingo! more room above the filter, 'cause this engine needs air like the space-walk astronaut with gas, and no sudden changes in cross-section to mess-up the flow. That baby would suck! (If bablefish has translated the American properly) Now, how about if you have disconnected the ERIK valve in your 12 pipe cause you fitted a different pipe. You can connect the motor to drive a variable-length velocity stack (or a moving mute, like in a trumpet) and get the best of both worlds. | ||
| Jerseyguy |
Kds1 - My feeling is that the inlet area on the dirty side of the filter is so much bigger (with snorkel removed) than the approx. 1 3/4" ID of the stack that it isn't that significant. What does seem to matter (from what I've read) is the length and path through the stack to the intake valve. This is conceptually similar to tuning an exhaust header. I'm really not totally clear on exactly how all this works but I'm learning. | ||
| Bikerdave |
Steve, I agree that you have a very nice looking aluminum stack. It certainly looks very much like a patented stack I helped design a few months ago. In fact, a set of copy righted drawings were sent to you to obtain a fabrication quote of which no reply was received. As a mechanical engineer, I have seen many attempts of others claiming rights to designs which are not their intellectual property. I find it odd that you are not mentioning in your thread that you have conferred with the original designer of the aluminum stack. I am not a Buell motorcycle enthusiast; however, since I have worked on this product and knew that it was being discussed on this site, I decided to take a look for myself. It is amusing to me that people will continue to take credit for ideas of others, but I guess that has more to do with human nature and a whole lot less to do with right and wrong. But either way, I truly believe what goes around will eventually come around. Good luck with YOUR design! | ||
| Azfirebolt |
Nice work Jersey... I think you have something there! I would just like to throw a big THANKS to Bubba... You are the man! I am still saving my pennies for my Drummer and race kit from you.I wish you lived here in PHX. I work on my bike myself, but want a pro like you to go over things for me!! I'll feed and house you if you come out to Phoenix!! It's perfect riding here here right now... I'll even put you on a HD, or you can ride my 12. Whichever. I just don't trust the dealers all that much... Oh well.... Ride it like you stole it! | ||
| Kds1 |
Jerseyguy, i've never changed from the factory header because of low funding. I've been lucky enough to figure the can part out so far.Usually if you put a big tube header on all you did was slow everything down...KD | ||
| Hootowl |
I fail to see how making an aluminum replacement for a stock part is infringing on anyone's copyrights. It's not like anyone here invented the velocity stack. | ||
| Henrik |
Nice job Steve. BikerDave; if you read the entire thread, you'd know that Steve from the get-go has made no claims to coming up with that design. In fact, he specifically notes that he's made a direct copy of the stock velocity stack. Now, if that indeed *is* your design, maybe you should take that up with the factory. Add to that, that Steve has been quite hesitant about even wanting to make more of these, whereas others have been quite antsy to peddle their wares. Know who I mean?? I for one am getting fed up with people waltzing in here announcing their own wonderfulness to the world - most likely only in order to promote themselves and get some free advertising .... oh yeah, and to swipe Badwebber's email addresses for their own little round of self promoting spam. (Did anyone else get Corey James' recent uninvited spam?) Now Dave, if you indeed have a great velocity stack design (different from stock), please chime in and let us know about it - but put your $$ where your mouth/keyboard is; sign up for a sponsorship with Blake. Give us real world, untampered, back-to-back dyno testing results (may I suggest either Bubba or Aaron for this task). And in general be a decent person. If that's too much to ask, who cares who you are or what you think? Henrik (Boy, does this smell like Corey and/or Brion surfaced again - maybe they've learned from last time, that it's quite easy to narrow down ISP location, even if you fake a new email address - maybe not ....) | ||
| Henrik |
Just to save you the reading, here are some of the things Steve has written on the subject: It's the same geometry as the stocker but aluminum. I don't know if it will be any better but I guess we are going to find out. I'm hoping Bubba will dyno it for me. Let's see how the dyno runs go before we get too excited. It might just be a pretty part. Before I would consider selling anything on Badweb the appropriate arrangements would need to be with the owners. It's only fair as this BBS has costs of its own. I used the stock geometry because I have to assume that Buell engineers know way more than I do on stack design. I have also modeled a different, more complex profile based on constant acceleration of the air as it passes through the stack. I haven't decided if I want to go through the expense of making it though. I'll start another post sometime soon so you all can offer an opinion on the design concept. Well, I think that pretty much sums it up ... Henrik | ||
| Bads1 |
Henrick I got that email.Damn I spent good money to stop all spam and I mean all spam on my company computer and it couldn't stop them.Ain't that something. | ||
| Dynarider |
I dont know who to believe & who is who anymore. Corey & Brion come around here with their lies & BS marketing attempts. They are pretty much banished & suddenly we have a new crop of folks who are "making" the same basic part. What gives? Im not saying they are all the same people, but something just isnt quite kosher here. | ||
| Spyder12s |
I feel ya there Dyna ...  | ||
| Jerseyguy |
Henrik - I don't know who you are but thanks for that post. It's painful to have your integrity unjustly challenged. I'm doing this for love of the sport. I thought I'd share my personal results with like minded people. Some folks just have to take the fun out of things. Dyna & Spyder - I'd like to set the record straight. I have had several phone conversations and emails with Brion regarding stack design. We don't agree on the geometry, sealing techniques and mounting arrangement. He sent me a sketch of his stack on a MS Word document. I attempted to solid model it for him but the geometry didn't work so I changed it a bit to make it work and sent him the 3D CAD file along with my design recommendations. He graciously offered me a free stack for my efforts and I declined. I'm not putting his design down, but I just wouldn't put it on my bike. Like I said, I don't agree with his design concept. I don't see any conflict here, just a difference of opinion. Early on he asked me to give him a price to manufacture his design and I said that I would be way too expensive compared to the prices he had gotten. I got some emails from his partner Corey also. I honestly don't want anything to do with the gentleman. It appears from his email that "bikerdave" works at the same company as Brion so he may be acting in Brion's behalf since Brion is banned from the BBS. One thing I can assure you is that there is not one single dimension on my copy of the stock Buell design that is the same as Brion's design as he sent it to me. Admin / Blake - If you would like me to discontinue this thread let me know. I'll keep the results of my research to myself. Enough unpleasantness! My copy of the stock stack is on its way through the snowstorm to Bubba. Hopefully the dyno results will be in early next week. I don't have any great expectations, but I'm hoping to see some improvement at least. Even if it doesn't work it sure is pretty! If you polish the hell out of aluminum you can make it look like chrome. | ||
| Buckinfubba |
Steve you good don't worry about the silly stuff. henrik Very nice post! BTW I have a new venture that I am testing to actually slow our bikes up. I have put it thru countless design variations and am happy to report I have the answer it goes like this. 4 slices of bread six table spoons of peanut butter,connect all this together. Than a 1lb bag of chips washed down with 3 milkshakes. 3 times a day for 1 month. this will slow your bike down. I am working on the patent as we speak...... | ||
| Henrik |
Steve - you're welcome. I say keep up the good work - don't let it get to you. Henrik | ||
| Xb9srider |
Wow!  You guys are rough. It has never struck me in these posts that Steve was trying "sell" anybody anything. He's an enthusiast, just like us, with the skillset to try to make a better mouse trap. He enthused about his creation and chose to share it with his friends here. He's solicited no one (except for for Bubba) to be involved other than a little support and interest. I've been involved in a couple of web-boards before this and I always lose interest because of the one or two members are completely negative on things and spoil things for others. I don't know Steve and have never communicated with him. However, his creation is impressive (I could never do it, could you?), he seems sincerely excited about sharing it with his friends, and he's made no claims of stupendousness. Good luck Steve and thank you for sharing your project.  It's a great looking piece of machinery and I hope it performs as you wish. Thanks Bubba for making sense on this board and supporting others that do the same. Ride safe to all. Mark  Never Give Up! | ||
| Cj_xb |
Bubba, your theory on slowing the bike down does look feasible !!! LMFAO CJ  | ||
| Bads1 |
Steve keep the posts coming its really cool what your doing.I for one understand if you aren't going to sell them.That email I got from Corey and they said they were working with Tat from American Sportbike or something like that.And it also had a conformation to click on so they indeed knew that I read it.Thats Bullshit!!!! | ||
| Daves |
I am working on the opposite of Bubba's theory. I have lost 8 lbs by eating less food(easy to do here at the dealers meeting, you should see the crap they try to feed you here). My goal is to add 2 HP to my bike and make my race leathers fit better at the same time. I only have about 10 lbs to go and I will have gained 2 hp without spending a dime. Ride to the edge! Dave Iowa HD/Buell (Buell Cycle Center) | ||
| Nevco1 |
Dave...like your theory of relativity. Fast and Frugal. Sorry to hear the food is underwhelming. Try to duck out during a break and see if you can spot a "Roach Coach" lurking nearby. That should provide a little greasy gratification as well as a musical solo during the afternoon session. Trust me, that would make you the center of attention! | ||
| Prof_stack |
Okay Daves and Bubba: For the XB9 or XB12, how many pounds must one lose (or gain) to gain (or lose) ONE horsepower? You two are in reverse competitition! | ||
| Xb9er |
"Did anyone else get Corey James' recent uninvited spam?" I got the same spam a couple days ago. Who are these people? I can guarantee I will not buy any of their products! Jersey. I can't wait to see the dyno results. If it improves performance but you decide not to pursue the project, other than the one prototype, I think we can figure out some way to reinforce and stiffen the rubber stack. It doesn't have to be aluminum, does it?. Maybe epoxy on the outside would be enough, I don't know. Anything so that we don't have to buy the Brianne-Carey or whatever it's called stack! Yeah what goes around does come around. I think that also applies to what transpired here on the BadWeb with those clowns and the uninvited spamming. edited by xb9er on January 27, 2004 | ||
| Opto |
Yeh the spam was a pretty desperate uninvited tactic - do they know something that we're about to find out? Jersey's stack sure is a spunky looking bit of gear. | ||
| Kaese |
I am in agreement with Xb9srider, these posts are an attempt to improve the velocity stack. In my opinion, the rubber stock one that is in there must deform at higher pressures. Maybe it doesn't. Only a camera or dyno will prove that point. | ||
| Wyckedflesh |
There is a pic someone posted of the stock rubber one deforming while being run on a dyno...though if I think back at the source mayhaps it was questionable...can't remember who exactly posted it. | ||
| Buckinfubba |
I thought I heard once every 10 lbs equals 1 hp.... so The way I figure it....my bike with me on it only has about 65 hp at the wheel....relatively speaking..... Dave I am trying to lose too but I have no will power....smoke too much ,eat too much,everything too much......oh well I am smiling most of the time..... I just prefer to look at my weight issue as being ground effects...you know down force and all.... | ||
| Jerseyguy |
Bubba - call me if you have questions when the stack shows up. The assembly is a bit different than the stocker. The OD of the stack's top is bigger than the hole in the airbox bottom. With the rubber one you can just mash it through, not so with the aluminum one. You should mount the clamp collar with the 2 stock M5 screws to the throttle body first and then push the stack with the seal on it through the loose airbox bottom, through the clamp collar and into the throttle body. Twisting the stack as you push makes it a bit easier. When the stack is all the way seated, lift the airbox bottom on the left side so you can get a ball end allen key in the clamp collar's locking screw. Tighten that sucker while holding the stack down. Work the seal into the airbox bottom and replace the 4 screws in the airbox bottom. Now you're good to go. Steve | ||
| 99buellx1 |
I was thinking that it was 8 lbs. Close enough. | ||
| M1combat |
Fubba, It depends on the power to weight ratio that you start with. Lets go with 100HP and a 450lb bike. 4.5lbs per HP. Add a 200lb rider we get 6.5lbs per HP. Everytime he shaves JUST UNDER 6.5lbs (and a little less each time) he gains one effective HP. The major advantage here though is grip/traction/handling/road-holding to weight ratio IMO. Eliminate Carbs. (The food ones ) If you eat out you may do well to just get rid of all bread. My Lady eats two ultimate cheeseburgers from Jack in the Box with extra Mayo and just removes the bun... She freakin looses weight doing that... Anyway... On with the stack discussion . | ||
| Buckinfubba |
just so you all know.....I ain't trying very hard to lose weight....and this whole low carb thingy is just the newest altest and greatest crap. me I prefer to enjoy life to the fullest. about 3 years ago I died for a while and it had nothing to do with my weight my smoking my drinking my eating no of that. But making myself get better had everything to do with my smoking ,eating and drinking and all around livin it up. life is way to short and can be taken away at any time... it ain't quanity...it is quality..... plus I don't really get all that caught up with hp and all that on my own bike. I have my fun and can still blaze a trail thru the twisties. pretty happy about it all really. oh well its another smoke break time  |
