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

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  #1421  
Old 4 Days Ago
jkinkade jkinkade is offline
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Mat & Cycowrencher, good info, can you post brand 's & lengths?
as just resized my cases for the Axtell 3 13/16" bore, & have order coming from Hammer for the parts I need to finish ( had barrels & pistons put away for this project ) so I'll need a steering damper too. rigid 03 1200. all stock forks frame, just Ohlins 14.5" shocks ( bit tall for the drags but, I do twisty mountain roads , mostly and track, when I can ) just think as higher in rear will need a damper.
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  #1422  
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Turbo Sporty 48 Turbo Sporty 48 is offline
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Quote:
Originally Posted by jkinkade View Post
Mat & Cycowrencher, good info, can you post brand 's & lengths?
as just resized my cases for the Axtell 3 13/16" bore, & have order coming from Hammer for the parts I need to finish ( had barrels & pistons put away for this project ) so I'll need a steering damper too. rigid 03 1200. all stock forks frame, just Ohlins 14.5" shocks ( bit tall for the drags but, I do twisty mountain roads , mostly and track, when I can ) just think as higher in rear will need a damper.
I sure hope you have a thread going on your build....
This MatHormell thread is f'in awesome.
And the bike ain't bad either.
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  #1423  
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Quote:
Originally Posted by jkinkade View Post
Mat & Cycowrencher, good info, can you post brand 's & lengths?
as just resized my cases for the Axtell 3 13/16" bore, & have order coming from Hammer for the parts I need to finish ( had barrels & pistons put away for this project ) so I'll need a steering damper too. rigid 03 1200. all stock forks frame, just Ohlins 14.5" shocks ( bit tall for the drags but, I do twisty mountain roads , mostly and track, when I can ) just think as higher in rear will need a damper.
Mine was a SE one that was special ordered for a FXDX and never picked up. I got it for 100 bucks...

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  #1424  
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jkinkade jkinkade is offline
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Quote:
Originally Posted by cycowrencher View Post
Mine was a SE one that was special ordered for a FXDX and never picked up. I got it for 100 bucks...

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thanks, I have one on my carb Buell, but got a slight bend in shaft it's an Ohlins but I'm not sure if can get replacement parts to rebuild.
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  #1425  
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Quote:
Originally Posted by Turbo Sporty 48 View Post
I sure hope you have a thread going on this build....
This MatHormell thread is f'in awesome.
And the bike ain't bad either.
I'm not sure how to post pic's in here but I took pic's of cases apart and being resized in Bridgeport mill with a micro bore. today
I got s&s premium lifters adjustable push rods collapsible tubes cv44 manifold to fit late EFI xl 1200 heads bronze oil pump gear, 560 impact cams. on way from Hammer. I have a hammer 3" billet air cleaner to use too.
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  #1426  
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Quote:
Originally Posted by jkinkade View Post
Mat & Cycowrencher, good info, can you post brand 's & lengths?
as just resized my cases for the Axtell 3 13/16" bore, & have order coming from Hammer for the parts I need to finish ( had barrels & pistons put away for this project ) so I'll need a steering damper too. rigid 03 1200. all stock forks frame, just Ohlins 14.5" shocks ( bit tall for the drags but, I do twisty mountain roads , mostly and track, when I can ) just think as higher in rear will need a damper.
I like the daytona shindy ones
https://www.jpcycles.com/harley-spor...eering-dampers

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  #1427  
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As pictured
Quote:
Originally Posted by MatHormell View Post
I like the daytona shindy ones
https://www.jpcycles.com/harley-spor...eering-dampers

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  #1428  
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Lol thanks man.... never intended for it to draw out this long but has turned into a good thread of info.. Originally was just going to be about the motor build, then just turned into about the whole bike build lol..
Quote:
Originally Posted by Turbo Sporty 48 View Post
I sure hope you have a thread going on this build....
This MatHormell thread is f'in awesome.
And the bike ain't bad either.
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  #1429  
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I spoke with Craig from micro blue.. I wanted get his thoughts on my raised CCP.. He said the increase in numbers I am seeing is a perfectly normal increase from the better ring seal.. He also mentioned that unlike physically raising the compression, this is just better seal so the high readings dont exactly mean I am outside pump gas capabilities.. which I don't think I am.. I have been running the bike on street and dyno on pump 93 up to 7000 rpms now and haven't heard any pinging or detonation. I think I will mix some pump 100 with some 93 as a 2:1 mix and run it for now and see how it does.

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  #1430  
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jkinkade jkinkade is offline
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Hi Mat sorry for hijacking your thread!
hey thanks for the steering damper link.

interesting about ccp,i have seen it go up just changing the primary ratio to a lower gearing & also on a Harley race bike with no starter, we used two different starter's, one could spin the motor faster. when we used the remote starter that turned the motor over at a faster speed & tested ccp we got higher ccp.
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