The Sportster and Buell Motorcycle Forum - The XLFORUM®
 

Go Back   The Sportster and Buell Motorcycle Forum - The XLFORUM® > SPORTSTER MOTORCYCLE FORUM > 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 Tuners
Last Post: npaisnel
Posted On: 20 Minutes Ago
Replies: 3
Views: 109
0 What gas mileage do you get for touring?
Last Post: Sirrom1
Posted On: 1 Hour Ago
Replies: 151
Views: 56,609
0 Morning default to odometer
Last Post: Eric Von Zipper
Posted On: 2 Hours Ago
Replies: 11
Views: 404
0 Sportsters in movies and TV
Last Post: Eric Von Zipper
Posted On: 2 Hours Ago
Replies: 6
Views: 154
0 Your never too old
Last Post: Eric Von Zipper
Posted On: 2 Hours Ago
Replies: 4
Views: 178
0 My take on the world ~ Photo by Trace
Last Post: Nibelungen
Posted On: 2 Hours Ago
Replies: 1,119
Views: 167,345
0 Keep & Kill
Last Post: Eric Von Zipper
Posted On: 2 Hours Ago
Replies: 18,169
Views: 1,072,974
0 How to remove Bendix float bowl?
Last Post: leon bee
Posted On: 3 Hours Ago
Replies: 3
Views: 129
0 Race Reort: Some Disasters, Some Wins
Last Post: SHAKY DAVE
Posted On: 3 Hours Ago
Replies: 28
Views: 1,090
0 '66 XLCH Repro Bars? (VM38 Conversion Continued)
Last Post: ProLibertate
Posted On: 3 Hours Ago
Replies: 0
Views: 33
0 Send a note to Sportsterpedia Admin
Last Post: Hippysmack
Posted On: 3 Hours Ago
Replies: 143
Views: 31,884
0 Opinions (On Bike Considering Buying)
Last Post: sportymike02
Posted On: 3 Hours Ago
Replies: 34
Views: 1,059
0 99 1200S Sport Ignition Troubleshooting
Last Post: Zip1
Posted On: 3 Hours Ago
Replies: 35
Views: 1,190
0 Hottie of the day, no nudity.
Last Post: ronccc
Posted On: 3 Hours Ago
Replies: 22,352
Views: 2,285,130
0 Hot Chicks on Hot Bikes
Last Post: hammer6315
Posted On: 3 Hours Ago
Replies: 11,096
Views: 2,186,646
0 Iree's late night cafe
Last Post: sportytrace
Posted On: 4 Hours Ago
Replies: 1,709
Views: 235,191
0 Ironhead heavy duty cable amps ?
Last Post: Uberstorm
Posted On: 4 Hours Ago
Replies: 0
Views: 25
4 What is the max drilling size in the frame?
Last Post: Uberstorm
Posted On: 4 Hours Ago
Replies: 8
Views: 396
0 Xl for sale
Last Post: jeosbolt
Posted On: 5 Hours Ago
Replies: 0
Views: 70
0 Food porn
Last Post: sportytrace
Posted On: 5 Hours Ago
Replies: 2,097
Views: 415,253
6 Secret photo"s of folkies loft
Last Post: chardhin
Posted On: 5 Hours Ago
Replies: 1,516
Views: 238,873
0 72 XLCH clutch ball and ramp system
Last Post: Zoo
Posted On: 5 Hours Ago
Replies: 0
Views: 32
0 Pawl Carrier Support Bushing ???
Last Post: ferretface
Posted On: 5 Hours Ago
Replies: 0
Views: 38
0 Transformer XR1200
Last Post: Davo_137
Posted On: 5 Hours Ago
Replies: 459
Views: 51,764
0 E85
Last Post: sportytrace
Posted On: 5 Hours Ago
Replies: 6
Views: 1,011
0 Sportster drag bike
Last Post: Zip1
Posted On: 6 Hours Ago
Replies: 6
Views: 195
0 Cosmo's ECM Relocation Mod
Last Post: sportytrace
Posted On: 6 Hours Ago
Replies: 49
Views: 46,099
0 Throttle side turn signal failure
Last Post: OntarioIron
Posted On: 6 Hours Ago
Replies: 9
Views: 154
0 Tired of hearing the Sportster is a girls bike (The one and only Girly Bike Thread)
Last Post: 1200CustomHD
Posted On: 6 Hours Ago
Replies: 4,021
Views: 795,843
0 79-85 Breather Vent Mod - Adding a Secondary Vent Hose at 6:00 Position
Last Post: Ferrous Head
Posted On: 6 Hours Ago
Replies: 125
Views: 3,586
More...
Members Birthdays
oldsporty1 (70), paris15 (62), thesmithiz (62), pajimmyjoe (61), chuckam (57), steve w (51), le_strike (44), Rubicon (38), r3db3ard3d (32), rortiz76 (32)
Reply
 
Share Thread Tools Display Modes
  #1  
Old 28th July 2020
mrmom9r's Avatar
mrmom9r mrmom9r is offline
XL FORUM TEAM MEMBER
 
Join Date: Jan 2011
Posts: 2,224
Sportster/Buell Model: dragbike
Sportster/Buell Year: 1960
Reputation: 256632
mrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant future
Default Whaaaat ???

DSC00272 by don rothwell, on Flickr

Mikuni dual throat 35mm throttle body about to become 38mm D.T.B.
Reply With Quote
  #2  
Old 28th July 2020
Iron Mike Iron Mike is offline
Master Bike Builder
 
Join Date: Dec 2014
Location: Phoenix
Posts: 2,043
Sportster/Buell Model: xlch
Sportster/Buell Year: 1964
Sportster/Buell Model #2: XLCH IR EFI
Sportster/Buell Year #2: 1971
Other Motorcycle Model: BMW K1200RS
Other Motorcycle Year: 2001
Reputation: 1228892
Iron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond repute
Default

Let the games begin!
Reply With Quote
  #3  
Old 28th July 2020
RicThompson RicThompson is offline
Chief Know It All
 
Join Date: Sep 2019
Posts: 407
Sportster/Buell Model: XLH
Sportster/Buell Year: 1969
Other Motorcycle Model: 111 Ironhorse Outlaw
Other Motorcycle Year: 2004
Reputation: 118936
RicThompson has much to be proud ofRicThompson has much to be proud ofRicThompson has much to be proud ofRicThompson has much to be proud ofRicThompson has much to be proud ofRicThompson has much to be proud ofRicThompson has much to be proud ofRicThompson has much to be proud ofRicThompson has much to be proud ofRicThompson has much to be proud ofRicThompson has much to be proud of
Default

I thought this site frowned on porn.
Reply With Quote
  #4  
Old 28th July 2020
cazz1000 cazz1000 is offline
Flat Track Champion
 
Join Date: Mar 2016
Posts: 618
Sportster/Buell Model: xlx
Sportster/Buell Year: 1983
Reputation: 81587
cazz1000 has much to be proud ofcazz1000 has much to be proud ofcazz1000 has much to be proud ofcazz1000 has much to be proud ofcazz1000 has much to be proud ofcazz1000 has much to be proud ofcazz1000 has much to be proud ofcazz1000 has much to be proud ofcazz1000 has much to be proud ofcazz1000 has much to be proud ofcazz1000 has much to be proud of
Default

keep talking,,,,, i,m almost there,,,,,,,,
Reply With Quote
  #5  
Old 28th July 2020
kitabel kitabel is offline
Harley Engineer
 
Join Date: Oct 2019
Posts: 339
Sportster/Buell Model: 883 Evo
Sportster/Buell Year: 1989
Reputation: 105148
kitabel has much to be proud ofkitabel has much to be proud ofkitabel has much to be proud ofkitabel has much to be proud ofkitabel has much to be proud ofkitabel has much to be proud ofkitabel has much to be proud ofkitabel has much to be proud ofkitabel has much to be proud ofkitabel has much to be proud ofkitabel has much to be proud of
Default

The Mikuni is PHH, or ?
Are the runners separate right into the intake ports, or merged?
Reply With Quote
  #6  
Old 28th July 2020
mrmom9r's Avatar
mrmom9r mrmom9r is offline
XL FORUM TEAM MEMBER
 
Join Date: Jan 2011
Posts: 2,224
Sportster/Buell Model: dragbike
Sportster/Buell Year: 1960
Reputation: 256632
mrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant future
Default

Quote:
Originally Posted by kitabel View Post
The Mikuni is PHH, or ?
Are the runners separate right into the intake ports, or merged?
Mikuni EFI with I.R manifold from Bolt 950.

Strange going on's on my dining room table.
Reply With Quote
  #7  
Old 28th July 2020
Iron Mike Iron Mike is offline
Master Bike Builder
 
Join Date: Dec 2014
Location: Phoenix
Posts: 2,043
Sportster/Buell Model: xlch
Sportster/Buell Year: 1964
Sportster/Buell Model #2: XLCH IR EFI
Sportster/Buell Year #2: 1971
Other Motorcycle Model: BMW K1200RS
Other Motorcycle Year: 2001
Reputation: 1228892
Iron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond repute
Default

Is it going back on the bolt or an HD transplant?
Wouldn’t mind hearing the exploits if it’s the latter.
Reply With Quote
  #8  
Old 28th July 2020
mrmom9r's Avatar
mrmom9r mrmom9r is offline
XL FORUM TEAM MEMBER
 
Join Date: Jan 2011
Posts: 2,224
Sportster/Buell Model: dragbike
Sportster/Buell Year: 1960
Reputation: 256632
mrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant future
Default

Quote:
Originally Posted by Iron Mike View Post
Is it going back on the bolt or an HD transplant?
Wouldn’t mind hearing the exploits if it’s the latter.
Well, the answer may be both. I am looking into some Bolt hop up possibilities for a company and this is one aspect.

It's not possible IMO to do an I.R. setup between the cylinders of an IH , just not enough room for the runners. HD tried it , I had one , it was not an improvement . The Bolt is a 60 degree v twin with way more room for intake runners and yet it's still the limiting factor in this design. The manifold is the poorest flowing component.

This thing could work using a mini plenum on an S&S manifold. But the easy path is most likely adapting an 883 EFI .

But the dual throat has more visual impact.
Reply With Quote
  #9  
Old 28th July 2020
Iron Mike Iron Mike is offline
Master Bike Builder
 
Join Date: Dec 2014
Location: Phoenix
Posts: 2,043
Sportster/Buell Model: xlch
Sportster/Buell Year: 1964
Sportster/Buell Model #2: XLCH IR EFI
Sportster/Buell Year #2: 1971
Other Motorcycle Model: BMW K1200RS
Other Motorcycle Year: 2001
Reputation: 1228892
Iron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond reputeIron Mike has a reputation beyond repute
Default

I most certainly wouldnt mind if you would critique my project a bit more. Good, bad or indifferent.
Reply With Quote
  #10  
Old 28th July 2020
mrmom9r's Avatar
mrmom9r mrmom9r is offline
XL FORUM TEAM MEMBER
 
Join Date: Jan 2011
Posts: 2,224
Sportster/Buell Model: dragbike
Sportster/Buell Year: 1960
Reputation: 256632
mrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant futuremrmom9r has a brilliant future
Default

Mike, I'd be glad to look at anything you've got. You can PM me or we can do it here if you don't mind people eves dropping .

I said earlier that the Bolt manifold was the worst flow restriction and that's not correct on the stock engine. The 35mm throttle body is worse but an increase in area of 14% will cure that.
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



All times are GMT +1. The time now is 07:55.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
XL Forum® - Linson Media LLC