G oog le BadWeB | Login/out | Topics | Search | Custodians | Register | Edit Profile

Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Engine » Big Mechanicals: Head, Cyl, Piston, Rod, Crank, Flywheel, Cases, Bearings » Xb pistons « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Buelldad
Posted on Saturday, January 16, 2010 - 02:17 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
whats the difference in the xb 9 & the xb 12 piston -what ive measured there the same bore & ihe pin to piston deck & pin dia are the same --but catalogs show them as different ??
Top of pagePrevious messageNext messageBottom of page Link to this message

Knickers
Posted on Sunday, January 17, 2010 - 07:52 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
The 9 piston is domed to give a smaller combustion chamber. That keeps the compression ratio the same as the 12 with the shorter stroke 9 crank. If you put 9 pistons into a 12 motor you get a higher compression ratio. Somewhere in the 12:1 range.
Top of pagePrevious messageNext messageBottom of page Link to this message

Buelldad
Posted on Wednesday, July 27, 2011 - 03:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
what im seein only the xb9r is domed i have some xb9 not r pistons & they are flat
Top of pagePrevious messageNext messageBottom of page Link to this message

Blake
Posted on Thursday, July 28, 2011 - 07:56 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Then they are not stock/OEM XB9 pistons.
Top of pagePrevious messageNext messageBottom of page Link to this message

Blake
Posted on Thursday, July 28, 2011 - 08:00 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
There is absolutely no difference between engines for XB9 "R" and "S" model bikes.
« Previous Next »

Add Your Message Here
Post:
Bold text Italics Underline Create a hyperlink Insert a clipart image

Username: Posting Information:
This is a private posting area. Only registered users and custodians may post messages here.
Password:
Options: Post as "Anonymous" (Valid reason required. Abusers will be exposed. If unsure, ask.)
Enable HTML code in message
Automatically activate URLs in message
Action:

Topics | Last Day | Tree View | Search | User List | Help/Instructions | Rules | Program Credits Administration