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 I need to polarize the generator each time I start the bike
Last Post: randy3934
Posted On: 4 Minutes Ago
Replies: 4
Views: 166
9 1970 XLCH Project Not starting
Last Post: Ferrous Head
Posted On: 15 Minutes Ago
Replies: 4
Views: 83
0 ....1
Last Post: Graywolf
Posted On: 1 Hour Ago
Replies: 5,706
Views: 330,013
0 Corona Virus
Last Post: BKB
Posted On: 1 Hour Ago
Replies: 778
Views: 64,685
0 Brand new 2020 XL1200NS
Last Post: Hippysmack
Posted On: 1 Hour Ago
Replies: 2
Views: 53
0 Remember these?
Last Post: bill smith
Posted On: 3 Hours Ago
Replies: 17
Views: 696
0 What Sort Of Sporty Have You Got?
Last Post: rokytnji
Posted On: 3 Hours Ago
Replies: 1,140
Views: 341,323
0 Vintage tires
Last Post: doodah man
Posted On: 3 Hours Ago
Replies: 5
Views: 124
6 Happy Birthday Iree!!!
Last Post: Steve9
Posted On: 3 Hours Ago
Replies: 7
Views: 72
0 ‘79-81’ rear wheel offset or spacing ing issue?
Last Post: Ferrous Head
Posted On: 3 Hours Ago
Replies: 1
Views: 75
0 CV carb running way rich!
Last Post: John Harper
Posted On: 4 Hours Ago
Replies: 6
Views: 317
4 1977 ironhead frame modification help
Last Post: mikethebike61
Posted On: 4 Hours Ago
Replies: 6
Views: 538
0 Crank failure and ?? killed my 1275 Hammer Build
Last Post: wedge
Posted On: 5 Hours Ago
Replies: 124
Views: 2,396
0 This week on Craig's list
Last Post: Ferrous Head
Posted On: 5 Hours Ago
Replies: 4,764
Views: 639,439
0 1275 Map For Thundermax...Need Help
Last Post: XL1275
Posted On: 6 Hours Ago
Replies: 0
Views: 41
5 Accidentally put Synthetic auto oil and caused engine to seize
Last Post: Hippysmack
Posted On: 6 Hours Ago
Replies: 32
Views: 1,542
0 Down on oil
Last Post: Hippysmack
Posted On: 6 Hours Ago
Replies: 48
Views: 1,835
0 Sticky Ironhead trans
Last Post: Hap
Posted On: 7 Hours Ago
Replies: 4
Views: 290
0 Food porn
Last Post: Graywolf
Posted On: 7 Hours Ago
Replies: 2,038
Views: 396,372
0 Hottie of the day, no nudity.
Last Post: Stairman
Posted On: 7 Hours Ago
Replies: 20,983
Views: 2,157,073
0 Rocker box leak on rear cylinder after 16 years (2004) old bike
Last Post: rocketmangb
Posted On: 8 Hours Ago
Replies: 35
Views: 774
0 Koso hd-01-04 2014+
Last Post: SonWon
Posted On: 9 Hours Ago
Replies: 7
Views: 300
0 Hot Rods, Rat Rods, and Customs.
Last Post: Stairman
Posted On: 9 Hours Ago
Replies: 4,162
Views: 601,139
0 Rear lights
Last Post: IXL2Relax
Posted On: 10 Hours Ago
Replies: 3
Views: 195
3 Wtb, Wts, Wtt, Wtg (Ironhead)
Last Post: ironsquirrel
Posted On: 11 Hours Ago
Replies: 30
Views: 262,142
0 Magneto Sportster's Original Paint 1965 XLCH Project
Last Post: Tim The Grim
Posted On: 11 Hours Ago
Replies: 14
Views: 408
0 New to Harley - 2007 883R
Last Post: Mike1nw
Posted On: 13 Hours Ago
Replies: 17
Views: 701
0 Cancelling auto renew
Last Post: Billy1200
Posted On: 13 Hours Ago
Replies: 4
Views: 132
0 Clutch release mechanism
Last Post: Rioo
Posted On: 14 Hours Ago
Replies: 3
Views: 234
0 Help identifying brakes
Last Post: bobandy
Posted On: 14 Hours Ago
Replies: 2
Views: 187
More...
Members Birthdays
Reply
 
Share Thread Tools Display Modes
  #11  
Old 2 Weeks Ago
Iron Mike Iron Mike is online now
Bike Builder
 
Join Date: Dec 2014
Location: Phoenix
Posts: 1,877
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: 839026
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

http://xlforum.net/forums/showthread.php?t=2073767

I most certainly don’t mind eves droppers. Not much talk on here about IR motors. I’m pretty thick skinned and am open to all comments from anyone. Comments lead to discussion, leading to thought processes, leading to testing, leading to progress. Sometimes.
Just keep in mind this is just an f-around undertaking for me and Jr to spend some time in the home garage and keeping him off the video games.
Swing over and take a look and please do comment.
Reply With Quote
  #12  
Old 2 Weeks Ago
mrmom9r's Avatar
mrmom9r mrmom9r is offline
XL FORUM TEAM MEMBER
 
Join Date: Jan 2011
Posts: 2,216
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

Very interesting project Mike. You are attempting one of the harder things there is to do with an I.R. system.

Just a simple street engine with good manners isn't a simple thing to do. It's much easier to make max HP in a narrow range. If you had carbs I'd tell you to forget it, but EFI gives you the best shot at making it work with IR.

Intake velocity is still important despite the fact that it's dry flow.
Aiming the injectors is critical , I think it would take an angled nozzle to hit the back of the head of the intake valve ( your target).
Reply With Quote
  #13  
Old 2 Weeks Ago
Iron Mike Iron Mike is online now
Bike Builder
 
Join Date: Dec 2014
Location: Phoenix
Posts: 1,877
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: 839026
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’ll have to update with a few newer pics as to where I’m at currently. I have since made the inj holders and welded them to the manifolds. I did attempt to aim them at the back of the intake valve like you mentioned, as well as close to head as much as possible. I will have control of both Inj independently as well as 720 deg of ign timing independently as well.
Reply With Quote
  #14  
Old 2 Weeks Ago
mrmom9r's Avatar
mrmom9r mrmom9r is offline
XL FORUM TEAM MEMBER
 
Join Date: Jan 2011
Posts: 2,216
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

For anyone with dual throat EFI curiosity this Mikuni unit is interesting. And Cheap.

There must not be a big market for used Bolt parts because this throttle body, fuel rail, injectors, TPS , IAC motor and manifold were purchased on ebay for less than $50 with free shipping.

So it's an affordable project to play with. I think it's a real possibility to use it with an S&S manifold, mini plenum / adaptor, 883 injectors, adapt HD TPS and run it with an HD controller.

Also a complete rear Cylinder head with the works : mustard ,ketchup, valves, springs,
cams, rockers , cam sprocket , was bought for $50 .

It ain't a Harley but it's cheap fun.

At those prices I can butcher a lot of parts .
Reply With Quote
  #15  
Old 2 Weeks Ago
Nitro57xl Nitro57xl is offline
Greasemonkey
 
Join Date: Nov 2018
Posts: 123
Reputation: 9524
Nitro57xl is a glorious beacon of lightNitro57xl is a glorious beacon of lightNitro57xl is a glorious beacon of lightNitro57xl is a glorious beacon of lightNitro57xl is a glorious beacon of lightNitro57xl is a glorious beacon of lightNitro57xl is a glorious beacon of lightNitro57xl is a glorious beacon of lightNitro57xl is a glorious beacon of lightNitro57xl is a glorious beacon of lightNitro57xl is a glorious beacon of light
Default

The manifold pictures sort of remind me of the S&S twothroat carb manifold? That didn't turn out well in the end, but was about the first attempt to mass market the I R concept?
Reply With Quote
  #16  
Old 1 Week Ago
mrmom9r's Avatar
mrmom9r mrmom9r is offline
XL FORUM TEAM MEMBER
 
Join Date: Jan 2011
Posts: 2,216
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

For anyone who has the question , The dual 35mm throats on a common intake for an HD provide the equivalent area of a 1 15/16" single butterfly . So half way between a Super E and a Super G.

Is it too big? Not with EFI since fuel atomization is no longer dependent on intake air velocity at low engine speeds.
Reply With Quote
  #17  
Old 1 Week Ago
Iron Mike Iron Mike is online now
Bike Builder
 
Join Date: Dec 2014
Location: Phoenix
Posts: 1,877
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: 839026
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

So are you supplying each cyl with 1/2 of a Super e? Or does the two runners combine to one manifold?
I’ll be following this one as closely as I can.
Reply With Quote
  #18  
Old 1 Week Ago
JonesL JonesL is online now
XL FORUM TEAM MEMBER
 
Join Date: Dec 2013
Posts: 643
Sportster/Buell Model: XL
Sportster/Buell Year: 1971
Reputation: 431849
JonesL has a reputation beyond reputeJonesL has a reputation beyond reputeJonesL has a reputation beyond reputeJonesL has a reputation beyond reputeJonesL has a reputation beyond reputeJonesL has a reputation beyond reputeJonesL has a reputation beyond reputeJonesL has a reputation beyond reputeJonesL has a reputation beyond reputeJonesL has a reputation beyond reputeJonesL has a reputation beyond repute
Default

I'm impressed with anyone trying something new. And if it works then anything more is just fine tuning. Keep up the good work.

One of my favorite sayings; "If a camel flies, no one will laugh if it doesn't get very far".
__________________
If you hear hoofbeats-- think horses, not zebras.
Reply With Quote
  #19  
Old 1 Week Ago
mrmom9r's Avatar
mrmom9r mrmom9r is offline
XL FORUM TEAM MEMBER
 
Join Date: Jan 2011
Posts: 2,216
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

The single carb on an HD feeds one cyl. at at time. It is the correct size for one of the cyl.'s.

I am not proposing using this for an HD IR. By using an adaptor / plenum to mount it to the common HD manifold the engine will see it as a single air source .

The Evo XL throttle body is 1.75 " just like the Buell XB stuff.

The HD TPS and IAC can be used with simple adaptors. MAP sensor is in the HD manifold as are the HD injectors.

The whole project that started with me looking at boring these throttle bodies has stopped. I finally received an email back from Mikuni and they have a 40mm version of this body so that solves that Bolt problem.
Reply With Quote
  #20  
Old 1 Week Ago
Iron Mike Iron Mike is online now
Bike Builder
 
Join Date: Dec 2014
Location: Phoenix
Posts: 1,877
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: 839026
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

Do you see any benifit to using that dual TB setup with common manifold when used in a progressive scenario? Part throttle on one butterfly then progressively open the second?
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 05:23.


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