| Author |
Message |
    
Trojan
| | Posted on Friday, March 30, 2007 - 03:17 am: | 
|
Tigerbythetail:
Yes you are right and my figures are wrong  The stock setup weighs 10kg on the XB12 (+ the primary oil), whereas this complete setup weighs 5kg for the road version. If you remove the alternator etc then obviously the weight saving is greater.
The dry clutch is no heavier than the stock version.
It is really designed for race use rather than the road, and I agree that I wouldn't use it for high mileage road application. However with a decent cover fitted it would be a viable alternative to the chain for road use.
I am a little surprised that the factory didn't experiment with something similar for the XBRR, given the weight saving and their alleged problems with primary chains prior to Daytona last year. |
Blake
| | Posted on Friday, March 30, 2007 - 03:44 am: |
|
Lubricant is still required for the transmission, so maybe -0.3 qt. lube.
I like the idea of a primary belt drive a lot. Not sure about the problems with primary chains being applicable here? I think that was when experimenting with a single row chain or after some significant XBRR mileage on the conventional chain. Nothing really problematic with the existing primary chain setup.
Would you be confident that the belt could stand up to 150 rwhp for prolonged/repeated abuse? That's 50% more than 100 rwhp. |
Hogs
| | Posted on Friday, March 30, 2007 - 08:35 am: |
|
I have seen alot of Top Fuel Harleys making a whole lot MORE power than any BUell will ever dream of, and never a plm. with belts on them...So I don`t think the power output is even a consideration on the Buells.. |
Tigerbythetail
| | Posted on Friday, March 30, 2007 - 08:53 am: |
|
hi..............the company unfortunately rushed the RR development and the baby was prematurely born.....the philosophy of unusual EB ideas applied to the normal XB has not been used for the RR.........but to be fair their primary objective was different..........they also had enough on their hands to get a proper slipper clutch that works in oil..............the Hillbilly development failed badly when it was initially tried on the RR in Daytona..........so did the single primary chain..............now Buell has a well working slipper clutch and to get this to work under dry conditions would mean significant changes.............the cost for the RR parts is very low compared to the belt solution, which indeed is nice technology, but it still needs a lot of thinking to really become an alternative.
tiger |
Blake
| | Posted on Friday, March 30, 2007 - 04:58 pm: |
|
Hogs,
There could well be a huge difference in lifespan for a 1/4 mile application versus one that requires hundreds if not thousands of miles of continuous abuse. But you are probably correct. If not for the vicious torque pulses at the primary drive sprocket, the final drive belt sees higher loads, and it is tiny in comparison.
I'd sure be interested to learn more about the Buell drivetrain loading. Very interesting stuff. |
Terribletim
| | Posted on Friday, March 30, 2007 - 05:26 pm: |
|
I see tons of 3" open primary belts on regularly ridden Harley's that have some crazy big engines and no problems. So it seems they work fine for day to day street use without a cover. Go to any rally, and I'm not saying the major ones like Sturgis or Daytona, any rally, and you'll see 'em everywhere. |
Jkhawaii
| | Posted on Saturday, March 31, 2007 - 02:21 am: |
|
considering there is actually more torque at the drive belt than the primary, that belt should be more than enough I would think |
Firemanjim
| | Posted on Saturday, March 31, 2007 - 02:53 am: |
|
Hey,Matt.Did you get my PM regarding this set-up??? |
Trojan
| | Posted on Saturday, March 31, 2007 - 04:56 am: |
|
Hey,Matt.Did you get my PM regarding this set-up???
No, it seems to have got lost in the ether somewhere Please send again. |
Riclyd
| | Posted on Tuesday, May 01, 2007 - 03:19 pm: |
|
This primary belt kit should be made as a ready bolt-on kit. I would have bought it... |
|
