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  #1  
Old 14th October 2021
shanneba shanneba is offline
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Default Sportster S on the dyno

Sportster S Dyno run


Edit: 4 pulls were 2 sport mode runs, a rain mode run and a standard mode run

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2013 XL1200C

Find your Owner's Manual, Wiring Diagram and Parts Catalog here :

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Last edited by shanneba; 15th October 2021 at 14:32..
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  #2  
Old 14th October 2021
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HawkeyeTX HawkeyeTX is offline
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Default

Those numbers seem to be lacking compared to what HD is claiming. Thanks for the information.
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Black Beauty - 2007 XL1200 Custom

Too many updates to list. Let's say I've spent more in upgrades than I paid.... but how many times over is your guess.

My 1275 Hammer Performance upgrade http://xlforum.net/forums/showthread.php?t=2078737 IT WAS DELETED BECAUSE OF HAMMER'S SHODDY QUALITY CONTROL
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  #3  
Old 15th October 2021
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seajay seajay is online now
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Default

https://www.autoblog.com/2021/07/13/...d-sportster-s/ Probably crank HP.
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04/07 1275 BFH heads Darkhorse XB crank .600 cams S&S 1.725 rockers S&S precision lifters BDL+15% clutch TC88A HSR-45 S&S 3" ac LSR 2-1
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  #4  
Old 21st October 2021
crfblur crfblur is offline
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Appreciate you posting the dyno sheet and details !
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  #5  
Old 3rd November 2021
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Tippy_Toes Tippy_Toes is offline
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Default

Those power numbers aren't that surprising. Still heaps better than any sportster engine of years past.

Interested to see if the power plant remains the same or if it gets detuned for the following sportster models.
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  #6  
Old 10th November 2021
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Default

Quote:
Originally Posted by HawkeyeTX View Post
Those numbers seem to be lacking compared to what HD is claiming. Thanks for the information.
Seems legit to me. Harley is measuring power at the crankshaft. These are at the rear wheel.
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1275 cc 10.54:1 cr se heads .560 cams hsr42 dyna 2000p patriot defender 11.63@ 115 1/4
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  #7  
Old 10th November 2021
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Default

Fashion over function. Hope they sell a bunch of them, not my taste.

I'll stick with my 65 hp iron.
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'81 Andrews "Y" cams, K. Black 9-1 pistons
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