Author |
Message |
Cycleaddict
| Posted on Monday, January 16, 2006 - 10:22 pm: |
|
has anybody ridden an xb-9 with a lightened primary sprocket installed? was there a noticeable differance? is it a worthwile modification ? |
Buellistic
| Posted on Tuesday, January 17, 2006 - 04:57 am: |
|
For every 12 pounds that you can reduse in weight you will get one HP that will not show up on a DYNO !!! If you lighten any thing that spinds, it will spin up faster !!! In BUELLing LaFayette |
Blake
| Posted on Tuesday, January 17, 2006 - 12:54 pm: |
|
Clarification: In a drag race type hard acceleration scenario, for every 12 pounds of weight shed will net the same relative improvement to performance as one additional HP. Handling should also improve. However, top/high speed performance will remain unchanged as it is largely ungoverned by mass of the bike. You just need enough weight to achieve good traction. At Bonneville, as speeds climb towards 200 mph, I understand that this become very important. |
Blake
| Posted on Tuesday, January 17, 2006 - 12:56 pm: |
|
But to answer the question... anyone? The rotating mass on the engine output shaft does more than help transfer power, it may also figure into flywheel inertia and help prevent development of problematic harmonics (vibrations). The increased torque spec on the output shaft sprocket nut may be related to that issue. |
Buellistic
| Posted on Wednesday, January 18, 2006 - 12:07 am: |
|
Lightened PRIMARY SPROCKET(must mean CLUTCH BASKET ???) ??? In BUELLing LaFayette |
Cycleaddict
| Posted on Wednesday, January 18, 2006 - 10:53 am: |
|
"lightened (crankshaft) primary sprocket" . racing m/c s.com sells a lightened primary sprocket (2-2.5 lbs lighter) has any body tried this on a xb-9 ?? |
Buellistic
| Posted on Wednesday, January 18, 2006 - 12:50 pm: |
|
Light is one thing, "BUT" what it is made of must be hard enough to last(ie: have a VERY LIGHT counter shaft sprocket which wears very fast(BUT IT SURE IS "LIGHT") ... Get it and try it as it is a good PRODUCT IMPROVEMENT !!! PLEASE let me know where you can get this from ??? In BUELLing LaFayette |
Cycleaddict
| Posted on Monday, January 23, 2006 - 12:24 am: |
|
well, i guess the answer to my question is no huh? |
Xldevil
| Posted on Monday, January 23, 2006 - 11:13 am: |
|
http://www.badweatherbikers.com/buell/messages/3842/164973.html?1136001112 |
Buellistic
| Posted on Monday, January 23, 2006 - 02:59 pm: |
|
BUELLers: OBTAINABLE Sprocket MOTOR(flywheel shaft)primary drive, 29 to 38 tooth $161.00 ... Lots of low end TORQUE with a LOST of top end with 29 and with the 38 more top end if you can pull the tall gearing(you might have to hope for a tail wind) ... Sprocket COUNTERSHAFT(engine pulley rear belt) 27 to 30 tooth $185.00 ... With 27 more torque and with the 30 more top end if you can pull the tall gearing(you might have to hope for a tail wind) ... In BUELLing LaFayette |
Cycleaddict
| Posted on Monday, January 23, 2006 - 11:07 pm: |
|
thanks x1devil |