| Author | Message | |||
     Porker |
 (Message edited by blake on January 07, 2005) | |||
| Briz31  |
Would they be similar to these available at "iron_machine".  | |||
| Porker |
I was actually going for a copy of the original. I'm sure anything is possible though.It looks like that one friction fits. I want mine to permanently attach, like the original | |||
| Vegasbueller  |
Wasn't there some internet crook, mechanic wanna be that was marketing these at some point? | |||
| Porker |
Dunno, I personaly am not marketing anything. I just thought xb9'ers would be interested. I will have one made irregardless. | |||
| Alex |
Porker, ask Your high performance shop if they have a flow bench. If so ask them to do one copy of the stock rubber stack out of aluminum and do a flow test. In case You find the same results that I found I´m not sure You´re willing to spend 250 bucks for it. If You find out that aluminum flows way superior over rubber when using the same shape -- give me a call. If it´s all for optical purpose only -- go for it. Best regards Alex | |||
| Buells Rule! (Dyna in disguise)  |
We have been down this road several times already & to date nothing has shown any real improvement over the stock piece. Especially if you are simply making a duplicate of the stock one in aluminum with a feeling that it will flow better, then you will be disappointed to find out you will have done nothing except waste time & money. | |||
| Glitch  |
Whay Dyna said. Jersyguy made a copy, dynoed it, and found he had a very nice looking V stack. | |||
| Jerseyguy  |
What Dyna said..... Tillys HD tested my identical copy of the rubber one in aluminum and it yielded identical results to the stock stack.  | |||
| Jerseyguy |
A few months back, Kevin (Drum) & I designed and tested a different stack design that we felt flowed better. Kevin felt that the race ECM couldn't adjust to it and it actually caused a loss of power. Now that I've got the Dobeck TFI on top of the race ECM, I might revisit that conceptual stack design. Before I do that I have to instrument up my bike with a rolling A/F recording system and possibly a rolling torque/HP recording system too. I'm working on it over the winter. | |||
| M1combat  |
With a stock ECM and non-stock exhaust (on a 12) we have a neat little unused actuator motor. It could be used to design a variable length intake tract... My guess, seems how it already tuned for the exhaust, is that it's already timed right for the intake, we would just have to come up with a cam that would move a fabricated actuator the proper length. Personally, I think this is the best use for it. | |||
| Alex |
Jersey, You won´t find any stack that flows more air with a stock or even slightly modified engine as the stock rubber stack easily outflows any stock head. Still You can tune the engine´s powerband with different length stacks. This is a "tuned induction length" issue not a "flow more air" one. Best regards Alex M-TeK Engineering Head porting and Flow bench service | |||
| Glitch |
Personally, I think this is the best use for it. Or you could use it to hide/unhide you tag  | |||
| Jerseyguy |
Alex - Thanks for that info. When I get set up for further testing I'd like to pick your brain if its OK. | |||
| M1combat |
"Personally, I think this is the best use for it. Or you could use it to hide/unhide you tag" He he... Whack the throttle open... Plate disappears. I like it  . | |||
| Oconnor  |
What about that F.A.S.T. system, doesn't that yield results on a stock head/motor. | |||
| Slaughter  |
Doesn't even have "bling" value when it's covered up with the airbox. I still use the stock rubber unit and I don't even bother working that funky collar back into the hole in the bottom airbox - just mash it down under the airbox bottom - I take it apart monthly anyways. Rubber works. | |||
| Lpowel02  |
What about that F.A.S.T. system, doesn't that yield results on a stock head/motor. yup...but the FAST system is more than just a stack...it combines a new stack, high flow air filter and heat shield/mat to get its results...dunno what the FAST stack on its own would do | |||
| Rigga  |
matts site trojan horse lists a replacement carbon stack the he claims gives an increase over stock..... anyone know anything about this one? | |||
| Rigga |
Replace the wobbly and inefficient rubber inlet with this carbon fibre tuned length inlet tract and you'll notice the difference straight away. Utilises the stock airbox cover and air filter (K&N preferable). Combined with a decent aftermarket exhaust this has given 89.5bhp at the rear wheel with no other engine mods! Price: £145.00 # XAFHS145 (Message edited by rigga on January 07, 2005) (Message edited by rigga on January 07, 2005) | |||
| Oconnor |
Rigga, if its a different length and if the lip curves out more it could change the power and power band. I have always wanted a slightly longer one with a long round lip. Big curves on a trumpet always worked better on car engines that I've done. Can't imagine that its any different on a buell. | |||
| Rigga |
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| Ingemar  |
Why would you want it to be longer? The space between the stack and the top of the lid over the filter element is already small. | |||
| Oconnor |
well if I used a different element or whatever, Hypothetically speaking, just fab'ing stuff up to see its effect. A longer stack should give a little better low end grunt. But maybe it won't maybe I wouldn't be able to gain enough length to make a difference. But then again..... Now I gotta stop thinking about this or the phone bill money is going to go to the machine shop instead.... | |||
| Wyckedflesh  |
Ingemar that was for the 9 not the 12, remember the airbox lid above the filter on the older 9's was higher, its part of why everyone jumps for the 12 airbox. | |||
| Jerseyguy |
Please forgive my skepticism, but I'm with Alex on this one. We have been through enough velocity stack performance claims without proof. The last guy disappeared (thankfully) and the machine shop that made his stacks was trying to sell them on eBay cheap because he never got paid for fabrication. Besides, mine's prettier than anybodies! I've replaced the inner airbox cover with a CNC'd clear lexan oval. All I need is a clear "faux" tank like the cityx and one could see my stack in all its glory doing absolutely nothing...... | |||
| Blake |
Soliciting BadWeBers in order to organize a "group buy" from any non-sponsor entity is not permitted. Thank you for understanding. | |||
| Ingemar |
I'm with Alex too, but that doesn't keep me from discussing it . Wycked, I had the old 9 box. Have you seen the pix I made of the mods to it? Aw heck, here they are: Cone is installed from the inside. Plate is 4mm thick:  Cone installed from the top. This creates 6mm more space above the stack (4mm from the cone and 2mm from the airbox itself).  Now:  Note that the on second picture the box is drilled, I tested the change before I drilled the box. The difference between pic 1 and pic 2 (not drilled) was that first it wouldn't pull strong til redline. Accelleration would slow down noticably above 100mph. After the change it pulled strong til redline. I didn't notice much after I drilled it, the reason for pic 3. | |||
| Wyckedflesh |
Ingemar you asked why longer for the one from Trojan. I had seen your mods so in your case the longer wouldn't benefit you much at all | |||
| Ingemar |
Now I'm toying with another idea ... If a longer stack gives a better bottom end or mid-range, why not make a longer stack and make a spacer under the filter? Any thoughts? | |||
| Porker |
Couln't hurt, that's for sure, and if you cut openings in the air box cover you would be more in line with the fresh air coming in as long as the spacer was under the filter. I think it's a good idea. |
