The Sportster and Buell Motorcycle Forum - The XLFORUM®
 

Go Back   The Sportster and Buell Motorcycle Forum - The XLFORUM® > SPORTSTER & BUELL MOTORCYCLE RACING > Sportster Motorcycle Drag Racing
XLF Blogs XLF Arcade XLF Disclaimer/Privacy Statement/Terms Of Use

Sportster Motorcycle Drag Racing Discuss drag racing on a Sportster Motorcycle.

Active Threads
0 Lets see your off season builds
Last Post: Tinz
Posted On: 4 Minutes Ago
Replies: 1,291
Views: 166,425
0 Code U1255 sputters and dies
Last Post: sportsterdoc
Posted On: 58 Minutes Ago
Replies: 11
Views: 249
0 In a crash: Lucky to be alive
Last Post: lostNdallas
Posted On: 1 Hour Ago
Replies: 34
Views: 557
0 Transformer XR1200
Last Post: Davo_137
Posted On: 1 Hour Ago
Replies: 31
Views: 1,372
0 Amazing without the windshield.
Last Post: Crusty
Posted On: 1 Hour Ago
Replies: 195
Views: 36,604
0 Whats on your head?
Last Post: mikeLI_77
Posted On: 2 Hours Ago
Replies: 18
Views: 252
0 Fat Bob tanks on a 93 Sportster
Last Post: Dshank14
Posted On: 2 Hours Ago
Replies: 0
Views: 20
0 Starter/solenoid issue
Last Post: Dshank14
Posted On: 2 Hours Ago
Replies: 0
Views: 35
0 answer with a question game
Last Post: Hippysmack
Posted On: 3 Hours Ago
Replies: 136
Views: 5,473
0 Craiglist finds
Last Post: NLXL
Posted On: 3 Hours Ago
Replies: 4
Views: 210
5 1200 or 883
Last Post: boomerguy
Posted On: 4 Hours Ago
Replies: 1,023
Views: 311,516
0 Misfire 02 883
Last Post: Thegen58
Posted On: 4 Hours Ago
Replies: 43
Views: 1,054
0 Why I don't have a HID Headlight Poll
Last Post: Toejam503
Posted On: 4 Hours Ago
Replies: 135
Views: 36,541
0 This week on Craig's list
Last Post: 72 Ironhead XLH
Posted On: 4 Hours Ago
Replies: 3,974
Views: 451,891
0 What engine oil do you use?
Last Post: Clevspeed
Posted On: 4 Hours Ago
Replies: 444
Views: 87,680
0 headlight upgrade
Last Post: Dcoff
Posted On: 4 Hours Ago
Replies: 11
Views: 235
3 Wtb, Wts, Wtt, Wtg (Ironhead)
Last Post: 72 Ironhead XLH
Posted On: 5 Hours Ago
Replies: 149
Views: 224,615
5 Harley T-Shirts
Last Post: Toejam503
Posted On: 5 Hours Ago
Replies: 282
Views: 43,729
0 New handlebar wiring harness 81XLH?
Last Post: Toejam503
Posted On: 5 Hours Ago
Replies: 6
Views: 283
0 Head gasket leak.
Last Post: lucifer_mr2
Posted On: 5 Hours Ago
Replies: 5
Views: 170
0 Do you use premium gas in your Sportster?
Last Post: Toejam503
Posted On: 6 Hours Ago
Replies: 1,738
Views: 350,819
0 (Do) (Are) Loud Exhausts__________.
Last Post: Eddieblz
Posted On: 6 Hours Ago
Replies: 26
Views: 3,156
0 Ever been pulled over?
Last Post: Sprtstr1200s
Posted On: 6 Hours Ago
Replies: 434
Views: 91,009
0 Regulator battery draw
Last Post: sportsterdoc
Posted On: 6 Hours Ago
Replies: 3
Views: 63
6 Calling all musicians
Last Post: Eddieblz
Posted On: 6 Hours Ago
Replies: 375
Views: 16,015
0 Ran out of gas.
Last Post: sportsterpaul
Posted On: 6 Hours Ago
Replies: 149
Views: 17,068
14 Post your Bike in a Cemetary Pic
Last Post: Toejam503
Posted On: 6 Hours Ago
Replies: 337
Views: 59,281
0 Hottie of the day, no nudity.
Last Post: sportsterpaul
Posted On: 6 Hours Ago
Replies: 10,798
Views: 955,878
0 Safe Max Rev Limit stock engine Roadster 2017
Last Post: eduardox23
Posted On: 8 Hours Ago
Replies: 19
Views: 446
0 Official XL Forum Random Image Thread (NO NUDITY!)
Last Post: Graywolf
Posted On: 9 Hours Ago
Replies: 43,515
Views: 6,796,669
More...
Members Birthdays
WinXP (68), Maggie (62), grancan1 (54), SRKASM (48), metalmessiah, o113attitude (44), stinkynate (36), wingman_214 (35)
Sponsored Links
Reply
 
Share Thread Tools Display Modes
  #1  
Old 1st November 2018
the cowboy way's Avatar
the cowboy way the cowboy way is offline
Senior Chief Know It All 3rd Class
 
Join Date: Apr 2006
Location: TENNESSEE
Posts: 1,727
Sportster/Buell Model: hand built M/XL ironhead
Sportster/Buell Year: 9293
Sportster/Buell Model #2: 1976 motor in a 1987 fram
Sportster/Buell Year #2: ????
Other Motorcycle Model: 1974 XL & 2003 FXD
Other Motorcycle Year: 7403
the cowboy way has disabled reputation
Default Building a dragbike 101

I got questions
How much travel do ya need on a air shift?
I'm building a 76 XL
The ignition wire don't fit its hole
__________________
Forever Two Wheels
1997 AMRA National E-class Champion
Ironhead parts I have tons of em
machine shop @ home
Reply With Quote
  #2  
Old 2nd November 2018
Racepres's Avatar
Racepres Racepres is offline
Senior Custom Bike Builder
 
Join Date: May 2013
Location: Middle O the Mitten
Posts: 2,904
Sportster/Buell Model: XLCH
Sportster/Buell Year: 1977
Reputation: 52661
Racepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to behold
Default

Quote:
Originally Posted by the cowboy way View Post
I got questions
How much travel do ya need on a air shift?
I'm building a 76 XL
The ignition wire don't fit its hole
Now you Know it needs enough to take up all of the travel... in both directions... with some left over.. Variable by the length of the Shifter "lever" attached..
If yer talkin which stroke cylinder to purchase??? I can Measure the Shortest that worked for us!!!
Reply With Quote
  #3  
Old 5th November 2018
the cowboy way's Avatar
the cowboy way the cowboy way is offline
Senior Chief Know It All 3rd Class
 
Join Date: Apr 2006
Location: TENNESSEE
Posts: 1,727
Sportster/Buell Model: hand built M/XL ironhead
Sportster/Buell Year: 9293
Sportster/Buell Model #2: 1976 motor in a 1987 fram
Sportster/Buell Year #2: ????
Other Motorcycle Model: 1974 XL & 2003 FXD
Other Motorcycle Year: 7403
the cowboy way has disabled reputation
Default

Thanks Marty
Measure it
I think I need 3 "
Reply With Quote
  #4  
Old 7th November 2018
the cowboy way's Avatar
the cowboy way the cowboy way is offline
Senior Chief Know It All 3rd Class
 
Join Date: Apr 2006
Location: TENNESSEE
Posts: 1,727
Sportster/Buell Model: hand built M/XL ironhead
Sportster/Buell Year: 9293
Sportster/Buell Model #2: 1976 motor in a 1987 fram
Sportster/Buell Year #2: ????
Other Motorcycle Model: 1974 XL & 2003 FXD
Other Motorcycle Year: 7403
the cowboy way has disabled reputation
Default

Marty when you gonna get out the ruler ?

how much tranny oil ? running a dry primary
Reply With Quote
  #5  
Old 12th November 2018
Racepres's Avatar
Racepres Racepres is offline
Senior Custom Bike Builder
 
Join Date: May 2013
Location: Middle O the Mitten
Posts: 2,904
Sportster/Buell Model: XLCH
Sportster/Buell Year: 1977
Reputation: 52661
Racepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to behold
Default

Quote:
Originally Posted by the cowboy way View Post
Marty when you gonna get out the ruler ?

how much tranny oil ? running a dry primary
Today.... I was kinda busy over the long weekend [for us] ya Know...
Reply With Quote
  #6  
Old 13th November 2018
the cowboy way's Avatar
the cowboy way the cowboy way is offline
Senior Chief Know It All 3rd Class
 
Join Date: Apr 2006
Location: TENNESSEE
Posts: 1,727
Sportster/Buell Model: hand built M/XL ironhead
Sportster/Buell Year: 9293
Sportster/Buell Model #2: 1976 motor in a 1987 fram
Sportster/Buell Year #2: ????
Other Motorcycle Model: 1974 XL & 2003 FXD
Other Motorcycle Year: 7403
the cowboy way has disabled reputation
Default

Awards Banquet
I knew that
Reply With Quote
  #7  
Old 13th November 2018
Racepres's Avatar
Racepres Racepres is offline
Senior Custom Bike Builder
 
Join Date: May 2013
Location: Middle O the Mitten
Posts: 2,904
Sportster/Buell Model: XLCH
Sportster/Buell Year: 1977
Reputation: 52661
Racepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to beholdRacepres is a splendid one to behold
Default

Yep Banquet
now, Typical is a 1-1/2 bore by 3 inch stroke, the Cylinder..
We used a Smaller one... 1" Bore, by about a 2" stroke...
Paying particular attention to the shifting mechanism...
Remember, smaller displacement is Faster... larger displacement [bore anyway] is more powerful...I can Prove that set up properly, not much power is required...
Our 1" short stroke cylinder is capable down to about 60lbs pressure... reliably...
Remembering that untill full pressure is reached... no Kill Takes Place [slower shifts at higher Pressure]


Edit; Knowing Exactly how an air shifter works pays dividends... I used to hold "school" on this back in the day!!!
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 06:22.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
XL Forum® - Linson Media LLC