| Author | Message | ||
     Saintly |
I was wondering if someone could supply me with two part #'s. First the # for the XB's oil filter and secondly the # for the xb12 inner airbox cover(supposedly increases power when installed on a XB9). I plan to have a NON-Buell harley dealer order me these parts and they tell me that they can order them IF I can get them the part #'s. Secondly, does anyone know what balance factor Buell uses on the XB9 flywheels? I know that 60% is the number used on all harley sportys & big twins(except maybe tc-88), but those motors don't rev to 7500 rpm too often and I've NEVER felt a harley twin thats as SMOOTH as my XB. So I'm wondering if they use a different factor when balancing XB's Lastly, does anyone know if the XB flywheels are of the 5-piece( 2 whls, crnk pin, pinion shft, sprkt shaft) design or the 3-piece( 2whls & a crnk pin) design like the 90 & up harley twins? | ||
| Daves |
I can get the part #s for you tomorrow. PS, I have them in stock  and you save 10% | ||
| Olinxb12r |
I have a 12 inner airbox cover that I might be willing to part with. It is still on my 12 currently, but I've been thinking about running an open airbox conversion and getting a catch can. Let me know how much you find out the 12 inner cover is going to cost you and we can work something out. | ||
| 99buellx1 |
12 Airbox Cover Part #: P0215.1AA Retail $37.40 Oil Filter Part #: 63806-00Y Retial $7.99 Buell is a Harley motor sooo, 3 piece. | ||
| Daves |
P0215.1AA retails for 34.95 Badweb price is 31.45 63806-00Y retails for 6.95 Badweb price is 6.25 Still using that "accelerator" I hated so much? | ||
| Saintly |
Dave, I think I'm going to order that airbox cover and two oil filters from you. While I'm at it though, could you shoot me a price on the front brake rotor & a set of pads? I might as well order everything all at once and save on shipping. Thanks | ||
| Hobanbrothers |
Flywheels are what they call 1 pc as they have a pressed together crankpin assembly and sprocket and pinion shafts are part of casting. The machining of flywheels and consistancy with HD practices has made it possible for them not to worry about balancing each individual flywheel assembly, to the best of my knowledge. They make every one the same weight, with the same pistons, rings, pins , etc. It is when you throw big bore pistons or different composites at it does it require specific balancing. We (HBR) do balance differently depending on the desired RPM and application. | ||
| Saintly |
Hobanbrothers: Thank you for this info, The reason that I inquired is because I plan to install a big bore kit to my xb9 and I expect that the new big-bore pistons will be quite a few grams heavier that the stock ones. I have built a number of harley air cooled twins and know that static balance of the wheels will need to be compensated for that increased weight. I have all the equipment to balance the older 5-piece cranks, but I do not have the adaptors and such to do the later wheels with the integral shafts. Now when you say that "they have a pressed together crankpin assembly" do you mean that they have done away with the taper-seat pins? I also inquired about the balance factor on the XB because I suspected it might be something other than 60%. Do you know what the correct factor for the XB wheels is? I suppose It could be calculated by statically balancing a stock unmodified wheel and then weighing the bobweight. Twice the bobweight's mass minus the rotating weight should give me a number that I can then divide by the STOCK reciprocating weight to get the stock balance factor shouldn't it? Lastly, assuming you do big-bore kits, let be ask you this: When you bore out the cases, do you break thru into center case bolt bore like what used to happen on the shovelhead and evolution harley cases when they were opened for 3 5/8 cylinders? | ||
| Hobanbrothers |
They have done away with tapers, you now have a straight CP with a press fit, depending on your tooling though, you may have proper balance shafts. The problem you will run in to is jigs for pressing apart and together. I have not reverse figured stock balance factor, it would be some data that would not hurt knowing, but we have spent quite a bit of R&D time developing our current balance factors that work very well for us. Big bore cases still hit center bolt, but not nearly as bad as they had been with XL's and tubers. We actually go all the way through the caes and nut from backside, otherwise you have no meat for center bolt to adhere to. Good luck with your big bore XB9, they are very fun bikes for the track and the street. We actually have a custom stroke for our race bikes that is neither a 9 or a 12 stroke, but she is a goer. We will be leaving for Mid Ohio on Tuesday for the AMA races, so please pardon me if there are no replies for a bit |
