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Buell Motorcycle Forum » Buell XBRR Pirate Racing Page (XB-arrrr-arrrr maties!) » XBRR Threads Consolidated Here! » XBRR Engine Differences « Previous Next »

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Archive through February 16, 2006Lornce30 02-16-06  04:39 pm
Archive through January 27, 2006Diablobrian30 01-27-06  06:38 pm
         

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Blake
Posted on Thursday, February 16, 2006 - 04:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Buell literature says 362 pounds dry with the clarification that "dry" in this case means sans 4.4 gallons of fuel.
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Anonymous
Posted on Thursday, February 16, 2006 - 10:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The XBRR does NOT come with any starter, and any literature stating otherwise was mistaken. Provision for an electric starter is provided in the wiring harness, and the starter ring gear is left on the clutch. Fitment of a production XB starter and the starter solenoid cable is all that's required to add a starter -- but it adds more than 8 pounds. With the starter kart, you can remove the ring gear and save a pound.

A starter kart with a Briggs & Stratton engine is an option, and starts the XBRR by spinning the wheel while the bike is on its rear wheel stand. It's not possible to bump start the bike without a tow to a higher speed than a pusher can achieve.
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Mutation_racer
Posted on Thursday, February 16, 2006 - 11:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

liberty hd-buell will take one
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Blake
Posted on Friday, February 17, 2006 - 12:46 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Blake wrong. Anonymous right. Thanks Anony! : )
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Court
Posted on Friday, February 17, 2006 - 04:36 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

>>>without a tow to a higher speed than a pusher can achieve.

And that, boys and girls, is how Flo Jo came to be the Buell starter girl . . .
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Jlnance
Posted on Friday, February 17, 2006 - 06:22 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

And that, boys and girls, is how Flo Jo came to be the Buell starter girl ...

You've no doubt heard the joke about the girl who could start a car by sucking on the tailpipe ...
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Road_thing
Posted on Friday, February 17, 2006 - 09:09 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Would that be the same lady that sucked the ham sandwich through the tennis racket?
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M1combat
Posted on Friday, February 17, 2006 - 12:54 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Or a golf ball through a diesel pump hose...
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Whodom
Posted on Friday, February 17, 2006 - 01:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Or the chrome off of a trailer hitch...
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Rubberdown
Posted on Friday, February 17, 2006 - 01:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

goes by the name "Hoover"?
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M1combat
Posted on Friday, February 17, 2006 - 02:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

"Hoover" is a bit masculine... I'd think Bistle might be better for a feminine professional...

What do I know : )?
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Blublak
Posted on Friday, February 17, 2006 - 08:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hey.. all we need to do is find that cutie that has been claimed to be able to 'suck start a panhead'..

She'd get it fired up.. one way or the other..hehehehe
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Cluckcluckpush
Posted on Sunday, February 19, 2006 - 09:37 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

ohh man, it's too bad they don't put a honda engine on the starter cart....maybe put a woodpecker decal on it just to off HRC a little more, tell them there is only 50 hope nobody protests the starter.
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Diablobrian
Posted on Sunday, February 19, 2006 - 03:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ray, that could happen......
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Sarodude
Posted on Monday, May 08, 2006 - 03:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

So, we know that the XBRR case bore is bigger and that the cylinder stud spacing is also. How were these new numbers (whatever they may be) chosen? Is it the same stud spacing of a TC motor? The VR motor? Was it something unique?

-Saro
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Anonymous
Posted on Monday, May 08, 2006 - 10:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It's the same stud spacing as the P&A 120 c.i. Big Twin motor from Jims.
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Sarodude
Posted on Tuesday, May 09, 2006 - 10:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks Anony. I just took a quick gander at Jims site. They claim that stud spacing can handle up to 4.8" bore. WTF....

Any hints as to how big Buell has gone with that setup? Maybe even more oversquare? Are there cranks shorter than 3.125"?

I don't even remember what I was looking for initially. Just chasing the curiousity kitty.

-Saro
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Mikej
Posted on Tuesday, May 09, 2006 - 10:23 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

http://www.buell.com/en_us/mania/racing/xbrr2.asp
"Bore x Stroke 4.080 x 3.125 inches "
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Sarodude
Posted on Tuesday, May 09, 2006 - 11:39 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Mike-

The current bore of the motor as delivered is pretty well known. I was wondering what more can be had - and if there would even be a point to it. Hence the 4.8 (not 4.08) comment. The Jims folks claim their cases can support a 4.8" bore. I'd guess the XBRR cases are similar in that respect and wonder if Buell has done much with anything significantly greater than 4.08" - and maybe an even shorter stroke than 3.125".

-Saro
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Mikej
Posted on Tuesday, May 09, 2006 - 12:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Saro,
There's "published" and there's "unpublished". I know of a local shop that runs some of the unpublished dimensions to good net effect. I would strongly suspect the factory has some knowledge of what various numbers are being run. I would also strongly suspect that if you ask the proper folks in a non-public venue you might get different answers, much as I did when I was looking into getting an X-framed bike but decided not to for unpublished reasons. There is probably a strong unpublished reason similar spacing to the Jim's spacing was chosen. I would be strongly surprised if anony came back with a hard number of how close they've run to the 4.8 diameter. (But I've been metaphorically slapped by an anony before so they/he/she might surprise us with that hard number answer.)

As to shorter vs longer, why stick to just a shorter option????? ;) There's reasons to play in and consider options in both directions.

Food for thought: build up two Blasts, one 4.75"bore x 3" stroke, one 4.08"bore x 3.75" stroke. What do you think the performance differences would be between the two bikes. I just made up the numbers, honest. : )

(Message edited by mikej on May 09, 2006)
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Jimidan
Posted on Tuesday, May 09, 2006 - 09:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

So, with the Pegasus emblems on the case casting, does that mean this is a Buell engine, or is HD claiming it as theirs.

I can remember an 'interesting' conversation that I had with Rich King's pit boss about the BLAST engine that was on King's short track bike that he used at Daytona a couple of years ago. I made the observation that since he was using the Buell engine, why didn't they have Buell's name anywhere on the bike, pit signs, truck, leathers, etc. He said "because it is a Harley motor". I said that it is a BLAST engine and HD doesn't use it for any of its other products...I think I lost the argument. It seemed like a shame not to use the Buell name on anything and miss out on the promotional opportunities of the brand with a segment of fans who may not even have heard of a Buell (I still run into these folks!)

But this motor has the Pegasus right there for everybody to see. Is it a Buell or is it a Harley?

Jimidan
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Bluzm2
Posted on Wednesday, May 10, 2006 - 01:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Isn't the case cylinder deck height higher on the RR cases?
I seem to remember from another posting somewhere that it's higher to get the heads farther apart to accomodate the intake system.

Brad
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Blake
Posted on Wednesday, May 10, 2006 - 01:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

While Buell certainly has a say and a hand in their design they do procure their engines from HDMC. Concerning the engine and transmission it would seem that HDMC acts much like a subcontractor to BMC, just like Showa does wrt the suspension and Verlicci does with the frame.
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Bohom2
Posted on Friday, May 19, 2006 - 12:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

http://www.jeremymcwilliams.com/diary.php
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Blake
Posted on Friday, May 19, 2006 - 01:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Bluz,
More to prevent the pistons from hitting each other. : )
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