The Sportster and Buell Motorcycle Forum - The XLFORUM®
 

Go Back   The Sportster and Buell Motorcycle Forum - The XLFORUM® > SPORTSTER MOTORCYCLE ZONE > Sportster Motorcycle Era Specific and Model Specific > Ironhead Sportster Motorcycle Talk (1957-1985)
XLF Blogs XLF Arcade XLF Disclaimer/Privacy Statement/Terms Of Use

Notices

Ironhead Sportster Motorcycle Talk (1957-1985) For all those that wanna talk about Ironhead Sportster Motorcycles

Active Threads
0 Hottie of the day, no nudity.
Last Post: Stairman
Posted On: 2 Minutes Ago
Replies: 7,047
Views: 502,725
0 early 73 vs. late 73
Last Post: dilligaff1956
Posted On: 9 Minutes Ago
Replies: 9
Views: 3,617
0 new (to me) '82 25th Anniversary Edition XLH 1000
Last Post: eimkeith
Posted On: 10 Minutes Ago
Replies: 8
Views: 255
0 Greetings from central Illinois
Last Post: Stairman
Posted On: 11 Minutes Ago
Replies: 2
Views: 53
0 Help: Weird electrical gremlin 08 Nightster
Last Post: IXL2Relax
Posted On: 36 Minutes Ago
Replies: 9
Views: 255
0 High RPM cutting out HELP!
Last Post: cazz1000
Posted On: 38 Minutes Ago
Replies: 6
Views: 98
0 Primary/transmission synthetic oil
Last Post: 60Gunner
Posted On: 40 Minutes Ago
Replies: 17
Views: 268
0 Lost compression?
Last Post: davixlrtt
Posted On: 57 Minutes Ago
Replies: 15
Views: 391
0 Replacement clutch discs
Last Post: GA_Ironhead
Posted On: 1 Hour Ago
Replies: 10
Views: 260
0 90 vs 89 ape hanger kits
Last Post: Four Speed
Posted On: 1 Hour Ago
Replies: 1
Views: 41
0 WTF Happened
Last Post: doodah man
Posted On: 1 Hour Ago
Replies: 894
Views: 146,636
0 Average age of the Ironhead forum users
Last Post: Windtheropy
Posted On: 1 Hour Ago
Replies: 408
Views: 67,127
0 Food porn
Last Post: sportytrace
Posted On: 1 Hour Ago
Replies: 702
Views: 77,495
0 '04+ Starting Issues, Do You Have Them? - Poll
Last Post: 3dognate
Posted On: 2 Hours Ago
Replies: 307
Views: 68,626
0 Hot Chicks on Hot Bikes
Last Post: Stairman
Posted On: 2 Hours Ago
Replies: 8,967
Views: 1,266,128
0 Forks
Last Post: Pezed
Posted On: 2 Hours Ago
Replies: 3
Views: 118
0 Roads I'd like to ride.
Last Post: lugster
Posted On: 2 Hours Ago
Replies: 85
Views: 4,078
0 Touring CX Roadster
Last Post: Crusty
Posted On: 2 Hours Ago
Replies: 46
Views: 3,045
0 ....1
Last Post: Graywolf
Posted On: 2 Hours Ago
Replies: 4,512
Views: 208,879
0 **DK Custom- *NEW* Sportster Slip Stream Skid Plate-10% Introductory Savings**
Last Post: DK Custom
Posted On: 2 Hours Ago
Replies: 3
Views: 157
0 Lake Erie Ride Alums?
Last Post: bplinson
Posted On: 2 Hours Ago
Replies: 9
Views: 275
0 starting characteristics
Last Post: GaryanOdinson
Posted On: 3 Hours Ago
Replies: 5
Views: 272
0 Shotgun Porn
Last Post: Stairman
Posted On: 3 Hours Ago
Replies: 756
Views: 96,677
0 Missing Man - SE Missouri Area
Last Post: Graywolf
Posted On: 3 Hours Ago
Replies: 40
Views: 6,525
0 Wauseon 2018. Who's going? Picture thread
Last Post: Pickss
Posted On: 4 Hours Ago
Replies: 3
Views: 124
0 Speedo quits working, bike wants to die
Last Post: ReddTigger
Posted On: 4 Hours Ago
Replies: 5
Views: 101
0 Plug wire question
Last Post: myrl883
Posted On: 4 Hours Ago
Replies: 7
Views: 191
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Graywolf
Posted On: 4 Hours Ago
Replies: 40,887
Views: 6,268,696
0 Danmoto Highwayman Sportster 1988-2003 exhaust
Last Post: bimbo
Posted On: 4 Hours Ago
Replies: 17
Views: 2,214
0 Cafe' Image thread WTFN
Last Post: tomaso
Posted On: 5 Hours Ago
Replies: 5,052
Views: 2,183,653
More...
Members Birthdays
oakies, Gunhappy2 (60), SamIam (54), biggdann (48), boyer911 (48), danii (41), PVD24 (39)
Sponsored Links
Reply
 
Share Thread Tools Display Modes
  #21  
Old 1 Week Ago
bustert's Avatar
bustert bustert is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2008
Posts: 8,182
Sportster/Buell Model: 1200s
Sportster/Buell Year: 2001
Sportster/Buell Model #2: xlch
Sportster/Buell Year #2: 1974
Reputation: 1245114
bustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond repute
Default

humm, 12:1 on pump gas! sorry it isn't fairy dust, its piston crown, if so, probably will come down in compression on its own.
Reply With Quote
  #22  
Old 1 Week Ago
KingOfPaint KingOfPaint is offline
Master Mechanic
 
Join Date: Aug 2013
Location: Tahoe Vista
Posts: 296
Sportster/Buell Model: XLCH
Sportster/Buell Year: 67
Other Motorcycle Model: crf450
Other Motorcycle Year: 2005
Reputation: 533
KingOfPaint will become famous soon enoughKingOfPaint will become famous soon enoughKingOfPaint will become famous soon enoughKingOfPaint will become famous soon enoughKingOfPaint will become famous soon enoughKingOfPaint will become famous soon enough
Default

Quote:
Originally Posted by bustert View Post
humm, 12:1 on pump gas! sorry it isn't fairy dust, its piston crown, if so, probably will come down in compression on its own.
Brian clarified the compression of those pistons at 10.5 to 1 and that still might be a no go for a streetable ride.
Reply With Quote
  #23  
Old 1 Week Ago
bustert's Avatar
bustert bustert is offline
XL FORUM TEAM MEMBER
 
Join Date: Jul 2008
Posts: 8,182
Sportster/Buell Model: 1200s
Sportster/Buell Year: 2001
Sportster/Buell Model #2: xlch
Sportster/Buell Year #2: 1974
Reputation: 1245114
bustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond reputebustert has a reputation beyond repute
Default

naw, the sport runs 10:1, no issues. what is going to come into play is the rest of the system from cam profile, intake & exh.
i run a tad over 10:1 but with the dynamic compression being low, i can run 87, only issue is clutch off ping. therefore, i run rpm base adv and can'd the voes. so yes it is doable.
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Sponsored Links
All times are GMT +1. The time now is 00:04.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
XL Forum® - Linson Media LLC