The Sportster and Buell Motorcycle Forum - The XLFORUM®
 

Go Back   The Sportster and Buell Motorcycle Forum - The XLFORUM® > SPORTSTER MOTORCYCLE FORUM > Sportster Motorcycle Motor / Engine > Sportster Motorcycle Engine Conversions
XLF Blogs XLF Arcade XLF Disclaimer/Privacy Statement/Terms Of Use

Notices

Sportster Motorcycle Engine Conversions Advice, questions, and tips for 1200, 1250, 1340, 1450 etc... for Sportster and Buell motorcycle engine conversions

Active Threads
0 XR-Cafe-Conversion
Last Post: Nibelungen
Posted On: 6 Minutes Ago
Replies: 304
Views: 54,092
0 This week on Craig's list
Last Post: DirtyCory
Posted On: 28 Minutes Ago
Replies: 3,616
Views: 369,023
0 Poll for the legalization of cannabis
Last Post: tigger
Posted On: 28 Minutes Ago
Replies: 382
Views: 52,472
0 Lithium battery earthx
Last Post: Tucsonmax1
Posted On: 30 Minutes Ago
Replies: 15
Views: 482
0 This Mikuni vm38-9 is driving me insane
Last Post: Iron Mike
Posted On: 31 Minutes Ago
Replies: 15
Views: 289
0 This is gonna hurt.
Last Post: Stairman
Posted On: 39 Minutes Ago
Replies: 7,534
Views: 1,403,284
0 New England 2018
Last Post: mick42
Posted On: 52 Minutes Ago
Replies: 230
Views: 13,298
0 Folkie's Rural Rambles
Last Post: Folkie
Posted On: 1 Hour Ago
Replies: 43
Views: 9,190
0 ***DK Custom-Limited Time 10% Savings on Stealth Adjustable Hwy Peg Kit***
Last Post: DK Custom
Posted On: 2 Hours Ago
Replies: 0
Views: 17
0 ***DK Custom-Limited Time 10% Savings on Heel Rest Bracket & Arm Kit***
Last Post: DK Custom
Posted On: 2 Hours Ago
Replies: 0
Views: 19
0 Headlight bulb upgrade
Last Post: Skuzeee
Posted On: 3 Hours Ago
Replies: 5
Views: 324
0 It’s Glamazon’s Birthday!
Last Post: Crusty
Posted On: 3 Hours Ago
Replies: 5
Views: 69
0 ***DK Custom-Limited Time 10% Savings on Adjustable Hwy Peg Mounting Kit***
Last Post: DK Custom
Posted On: 3 Hours Ago
Replies: 0
Views: 27
0 How stock is your bike
Last Post: SLW210
Posted On: 3 Hours Ago
Replies: 137
Views: 27,519
0 ***DK Custom-Limited Time 10% Savings on Rock-it Shift For Sportsters***
Last Post: DK Custom
Posted On: 3 Hours Ago
Replies: 1
Views: 62
0 ***DK Custom-Limited Time 10% Savings on HALF-MOON FLOORBOARDS***
Last Post: DK Custom
Posted On: 3 Hours Ago
Replies: 1
Views: 119
0 ***DK Custom-Limited Time 10% Savings on SGS Primo Deluxe Footpegs***
Last Post: DK Custom
Posted On: 3 Hours Ago
Replies: 1
Views: 108
0 ***DK Custom-Limited Time 10% Savings on BMX Style Footpegs***
Last Post: DK Custom
Posted On: 4 Hours Ago
Replies: 1
Views: 100
0 ***DK Custom-Limited Time 10% Savings on Slip Stream Footpegs***
Last Post: DK Custom
Posted On: 4 Hours Ago
Replies: 1
Views: 100
0 Hottie of the day, no nudity.
Last Post: Stairman
Posted On: 4 Hours Ago
Replies: 8,462
Views: 679,196
0 ***DK Custom-Limited Time 10% Savings on Canyon Carver Footpegs***
Last Post: DK Custom
Posted On: 4 Hours Ago
Replies: 1
Views: 98
0 ***DK Custom-Limited Time 10% Savings on Triple Trap Footpegs***
Last Post: DK Custom
Posted On: 4 Hours Ago
Replies: 1
Views: 98
0 ***DK Custom-Limited Time 10% Savings on SGS Bear Trap Pegs***
Last Post: DK Custom
Posted On: 4 Hours Ago
Replies: 1
Views: 98
0 ***DK Custom-Limited Time 10% Savings on Trap Moto Footpegs***
Last Post: DK Custom
Posted On: 4 Hours Ago
Replies: 1
Views: 91
0 ***DK Custom-Limited Time 10% Savings on Flying Knuckle Footpegs***
Last Post: DK Custom
Posted On: 4 Hours Ago
Replies: 1
Views: 93
0 Alresford And Alton
Last Post: Folkie
Posted On: 4 Hours Ago
Replies: 0
Views: 26
0 Were your parents anti bike?
Last Post: debster
Posted On: 5 Hours Ago
Replies: 40
Views: 1,006
More...
Members Birthdays
jdhickm (83), Chip (70), Chief4x4 (68), willyobiker (66), CBryant (65), XLCH69 (62), sage (59), VettesRule (56), jerseyjeff (56), TheExecutioner (53), SalTheWop (53), manic_mechanic, pauldmedic16 (44), BluegrassXL (40), Superman
Tags
90ci, big bore, engine builder, hammer performance, patriot defender

Sponsored Links
Reply
 
Share Thread Tools Display Modes
  #1541  
Old 11th September 2018
MatHormell's Avatar
MatHormell MatHormell is offline
Senior Chief Master Mechanic 1st Class
 
Join Date: Jul 2015
Location: Merica!Fock YA!
Posts: 1,246
Sportster/Buell Model: XL883R
Sportster/Buell Year: 2002
Sportster/Buell Model #2: Buell XB12R
Sportster/Buell Year #2: 2009
Other Motorcycle Model: Yamaha
Other Motorcycle Year: 95
Reputation: 958932
MatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond repute
Default

Great day at the track! New PB and first win!

Sent from my SAMSUNG-SM-G890A using Tapatalk
__________________
HAMMER PERFORMANCE 90 Ci
CP .500 Dome Pistons
Axtel Cast Iron Cylinders
HAMMER PERFORMANCE .600 Cams
1.725 Ratio S&S Rocker Arms
HAMMER PERFORMANCE Intake Manifold
HSR 48 Miunki
XR1200 Crank Conversion W/ Case Mod 34T
HAMMER PERFORMANCE Sledge+ Head Work
2.020" Intake and 1.630" Exhaust Valves
Conical Valve Springs
S&S Premium Lifters
HAMMER PERFORMANCE Billet Push Rod Bases
Barnett Clutch Hub With Scorpion Clutch
Dynatek 2000i
R&D MOTORSPORTS- TRANSMISSION WORK-REM ISF
WorldWideBearings
Patriot Defender Exhaust
Reply With Quote
  #1542  
Old 11th September 2018
MatHormell's Avatar
MatHormell MatHormell is offline
Senior Chief Master Mechanic 1st Class
 
Join Date: Jul 2015
Location: Merica!Fock YA!
Posts: 1,246
Sportster/Buell Model: XL883R
Sportster/Buell Year: 2002
Sportster/Buell Model #2: Buell XB12R
Sportster/Buell Year #2: 2009
Other Motorcycle Model: Yamaha
Other Motorcycle Year: 95
Reputation: 958932
MatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond repute
Default

10.07 pass on the helmet cam.

https://youtu.be/vX4kporWyXA


Sent from my SAMSUNG-SM-G890A using Tapatalk
Reply With Quote
  #1543  
Old 3 Weeks Ago
MatHormell's Avatar
MatHormell MatHormell is offline
Senior Chief Master Mechanic 1st Class
 
Join Date: Jul 2015
Location: Merica!Fock YA!
Posts: 1,246
Sportster/Buell Model: XL883R
Sportster/Buell Year: 2002
Sportster/Buell Model #2: Buell XB12R
Sportster/Buell Year #2: 2009
Other Motorcycle Model: Yamaha
Other Motorcycle Year: 95
Reputation: 958932
MatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond repute
Default

Made a few recent changes

Sent from my SAMSUNG-SM-G890A using Tapatalk
Reply With Quote
  #1544  
Old 3 Weeks Ago
jkinkade jkinkade is offline
Chief Harley Engineer
 
Join Date: Jan 2016
Location: on the Australian east coast
Posts: 514
Sportster/Buell Model: XLH 1200 2003
Sportster/Buell Year: 2003
Reputation: 41905
jkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to behold
Default

Hi Mat,
Wow you will need a wheelie bar!
will be good to see what time's you do with the bottle!! & how it handles the extra HP + TQ at track. how much of a shot will you give it? & will the Mik 48 give enough extra fuel?
__________________
2003 XL1200
Reply With Quote
  #1545  
Old 3 Weeks Ago
MatHormell's Avatar
MatHormell MatHormell is offline
Senior Chief Master Mechanic 1st Class
 
Join Date: Jul 2015
Location: Merica!Fock YA!
Posts: 1,246
Sportster/Buell Model: XL883R
Sportster/Buell Year: 2002
Sportster/Buell Model #2: Buell XB12R
Sportster/Buell Year #2: 2009
Other Motorcycle Model: Yamaha
Other Motorcycle Year: 95
Reputation: 958932
MatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond repute
Default

No bar life!!!

No nitrous here yet, may end up adding a small bottle in good time to keep up with all these stretched zx14s around here on nitrous lol.

Ran by new PB in the 1/8 last night with the new stack and boyesen Xwing.
Looking at my best 1/4 slip. This 1/8 would of been a 9.9 run had I been on the 1/4. Improvemnts are being made!


Wanted to product review the Xwing also..

Last night was the first start and runs using it along with a velocity stack, in place of the hammer performance backing plate ran open.

So here is what I noticed right off the first start.

A far smoother and more consistent idle. My bike has never idled so good before. It was low 70s all night, no choke, started everytime, no fluctuations in idle or carb pops and the most consistent smooth AFR its has had yet holding steady at 13.1.

Secondly the throttle response. It's hard to beat a Mikuni HSR and its throttle responsiveness. I actually prefer the HSR over most all Harley injection as far as throttle response goes. Well it got better, alot better. When staging it held high rpm much more steadily and the slightest wack of the throttle was instantly turned to revs.

I haven't had it on the street yet, but can only assume the same characteristics will apply in part and mid throttles.

Top end didn't loose any and pulled my new personal best of 6.36 seconds in the 1/8, so it for sure isnt taking anything away from the big end. The AFR has never been so smooth and flat, mind you, I've spent extended periods of time in the dyno trying to perfect its AFR line.

For less than $100 I do not regret the purchase what so ever. I know my motor very well and how it behaves. Its very consistent and dialed into me and I can say without a doubt the Boyesen Xwing made an improvement across the powerband and worth the purchase.

So its staying in.

Was having trouble with the wego getting to to log RPM perfectly, think I need a better connection at the coil.



Quote:
Originally Posted by jkinkade View Post
Hi Mat,
Wow you will need a wheelie bar!
will be good to see what time's you do with the bottle!! & how it handles the extra HP + TQ at track. how much of a shot will you give it? & will the Mik 48 give enough extra fuel?


Sent from my SAMSUNG-SM-G890A using Tapatalk
Reply With Quote
  #1546  
Old 3 Weeks Ago
jkinkade jkinkade is offline
Chief Harley Engineer
 
Join Date: Jan 2016
Location: on the Australian east coast
Posts: 514
Sportster/Buell Model: XLH 1200 2003
Sportster/Buell Year: 2003
Reputation: 41905
jkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to behold
Default

Quote:
Originally Posted by MatHormell View Post
No bar life!!!

No nitrous here yet, may end up adding a small bottle in good time to keep up with all these stretched zx14s around here on nitrous lol.

Ran by new PB in the 1/8 last night with the new stack and boyesen Xwing.
Looking at my best 1/4 slip. This 1/8 would of been a 9.9 run had I been on the 1/4. Improvemnts are being made!


Wanted to product review the Xwing also..

Last night was the first start and runs using it along with a velocity stack, in place of the hammer performance backing plate ran open.

So here is what I noticed right off the first start.

A far smoother and more consistent idle. My bike has never idled so good before. It was low 70s all night, no choke, started everytime, no fluctuations in idle or carb pops and the most consistent smooth AFR its has had yet holding steady at 13.1.

Secondly the throttle response. It's hard to beat a Mikuni HSR and its throttle responsiveness. I actually prefer the HSR over most all Harley injection as far as throttle response goes. Well it got better, alot better. When staging it held high rpm much more steadily and the slightest wack of the throttle was instantly turned to revs.

I haven't had it on the street yet, but can only assume the same characteristics will apply in part and mid throttles.

Top end didn't loose any and pulled my new personal best of 6.36 seconds in the 1/8, so it for sure isnt taking anything away from the big end. The AFR has never been so smooth and flat, mind you, I've spent extended periods of time in the dyno trying to perfect its AFR line.

For less than $100 I do not regret the purchase what so ever. I know my motor very well and how it behaves. Its very consistent and dialed into me and I can say without a doubt the Boyesen Xwing made an improvement across the powerband and worth the purchase.

So its staying in.

Was having trouble with the wego getting to to log RPM perfectly, think I need a better connection at the coil.





Sent from my SAMSUNG-SM-G890A using Tapatalk
Sounds positive!
can't wait to see a time slip thats in the nines and a trap speed in the 130's!

as they say get 60' down & if you don't make any mistakes the ET will drop!
Reply With Quote
  #1547  
Old 23 Hours Ago
MatHormell's Avatar
MatHormell MatHormell is offline
Senior Chief Master Mechanic 1st Class
 
Join Date: Jul 2015
Location: Merica!Fock YA!
Posts: 1,246
Sportster/Buell Model: XL883R
Sportster/Buell Year: 2002
Sportster/Buell Model #2: Buell XB12R
Sportster/Buell Year #2: 2009
Other Motorcycle Model: Yamaha
Other Motorcycle Year: 95
Reputation: 958932
MatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond reputeMatHormell has a reputation beyond repute
Default

Few more changes made before the final PMRA race of the season this coming weekend. Going to give clip on bars a try, had to lower forks about 1 1/2" into the tree for them to fit. Puts my wheelbase right at 62". Got the manifold side of carb air divider installed and a map air sensor screen in my stack. Planning to drill the hammer manifold out for a Map sensor to read with my wego3. Hoping to break into the 9s this weekend. Going to have cool good air. http://cloud.tapatalk.com/s/5bce2d14...022_123410.mp4

Sent from my SAMSUNG-SM-G890A using Tapatalk
Reply With Quote
  #1548  
Old 11 Hours Ago
jkinkade jkinkade is offline
Chief Harley Engineer
 
Join Date: Jan 2016
Location: on the Australian east coast
Posts: 514
Sportster/Buell Model: XLH 1200 2003
Sportster/Buell Year: 2003
Reputation: 41905
jkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to beholdjkinkade is a splendid one to behold
Default

Mat, very interesting, that screen is over my head!!
It looks to me like it might restrict air flow. can you explain how it works?
the other crossed metal plate, seems to work if 1/8th mile time in line with a 9.9 quarter.
the 1.5 inch drop via fork tubes, sounds like a positive move as in drags the lower the better.

hope you get good weather, good air quality on the last time at track for season!!

also I was looking at your Datta log, after 490 seconds the AFR goes lean is that when you backed off? but rev also high?
Reply With Quote
Sponsored Links
Reply

Bookmarks


Currently Active Users Viewing This Thread: 2 (0 members and 2 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 20:31.


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