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Old Apr 9, 2010 | 08:59 PM
  #11  
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I agree old grumpy, i been around this stuff a long time. big bore kit without head work is useless. The headwork and cam will work together with the right builder. Torque is the key.
 
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Old Apr 9, 2010 | 09:02 PM
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Torque is acceleration, Horsepower is speed.
 
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Old Apr 9, 2010 | 09:14 PM
  #13  
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10-4 the stock heads are asmatic need lots of massaging
 
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Old Apr 9, 2010 | 09:30 PM
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Originally Posted by flight
Torque is acceleration, Horsepower is speed.
... not to hijack the thread, but does an SEST eliminate the rev limiter or just adjust it up ?

thanks,
 
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Old Apr 9, 2010 | 09:31 PM
  #15  
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Originally Posted by grumpy old biker
Ok! Show me your dyno chart. When your torque starts to drop away there is no reason to continue to rev the hell out of the bike. A HD down load or a PC rev extend etc., raising the rev limiter is not the point, and means nothing. If your torque is falling away, whether it be at 3, 4, 5000 rpm, any rpm rise after that is a waste of time and flogging your engine for little or no gain. Just because all your horsepower comes in at 6000 rpm, again means nothing. Torque is want gets you up to speed, horsepower is what maintains that speed. Building an engine for torque will guarantee you get horsepower, building an engine for horsepower doesn't guarantee torque. I'll take torque over horsepower any day of the week, that's the whole point of a Harley. Thought I would add - read my original post. I did not state that the bike would only make torque between 3000 and 4000 rpm, only that it would start to drop somewhere in that area depending on setup.
If your referring to me grumpy my sheet is posted in the bagger dyno thread, and there is also a copy on bob woods website 110/111STD 109/109SAE. I guess if my build fell flat on its face at 3-4k or whatever you said I would shift earlier. But it doesnt, so I dont. That must suck though......
 

Last edited by ryanl; Apr 9, 2010 at 09:34 PM.
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Old Apr 9, 2010 | 09:32 PM
  #16  
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I believe all Harley HP and TQ curves cross at 5250 RPM correct? Regardless of the build IIRC. Why go higher than 5250?
 
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Old Apr 9, 2010 | 09:51 PM
  #17  
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Dont want to push these pushrod motors to high, it will break it
 
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Old Apr 9, 2010 | 09:58 PM
  #18  
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Originally Posted by 09StreetGlider
I believe all Harley HP and TQ curves cross at 5250 RPM correct? Regardless of the build IIRC. Why go higher than 5250?
Well i dont have a tach so when im shitting and gettin i keep going as long as its still trying to pull me off the seat... i try to shift before i hit the limiter but it doesnt always work out that way. Im not all that worried about it.
 
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Old Apr 9, 2010 | 10:05 PM
  #19  
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So much mechanical loss from the cams to the valves on the v twin, if you want to go that fast buy a v rod
 
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Old Apr 9, 2010 | 10:37 PM
  #20  
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Originally Posted by CURTYS06FLHX
So much mechanical loss from the cams to the valves on the v twin, if you want to go that fast buy a v rod
Ok, Next time I wanna know how I should ride my bike. Ill be sure to ask you first....
Seems as though you can always pick out the guys that ride stock bikes, or got stuck with crappy half *** builds...
 

Last edited by ryanl; Apr 9, 2010 at 10:40 PM.
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