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TOPIC: Re:engine mods for the technically challenged
#140258
BlackHorse (User)
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engine mods for the technically challenged 1 Month, 3 Weeks ago  
Confession: I am a rider not a wrencher...I know very little about engine mechanics, I just love to ride. With that disclaimer up front, I would like some input on recomended cost-effective engine modications. My bike is an 01 midnight star with a stage one jet kit, big air and a dyna 3000. I am about to have the tranny recall work done and want to take advantage of the free teardown.

So, what can I do replacement parts wise to upgrade performance without spending a lot of money or putting the long term integrity of the bike at risk?
Blackhorse
 
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#140261
takehikes (User)
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Re:engine mods for the technically challenged 1 Month, 3 Weeks ago  
You messed up and put "I dont want to spend a lot of money" in there. I had a ton of ideas how to spend your money until then. Since you have BAK and the DYna I recommend an aftermarket exhaust and ported manifold. Not cheap but lots of bang for the buck.
 
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#140273
ultrastar (User)
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Re:engine mods for the technically challenged 1 Month, 3 Weeks ago  
On my recall I had HC pistons put in, that will give you about 10 hp
 
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#140313
ironman (User)
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Re:engine mods for the technically challenged 1 Month, 2 Weeks ago  
stock or modified exhaust ?
 
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#140330
BlackHorse (User)
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Re:engine mods for the technically challenged 1 Month, 2 Weeks ago  
My bike has Roadhouse Classic (2 iinto 1)exhaust in addition to previously listed modifications.
Blackhorse

PS If price was not a consideration, what would you reccomend?
 
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#140341
Flashback (Moderator)
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Re:engine mods for the technically challenged 1 Month, 2 Weeks ago  
Would suggest you replace the oil pump drive gear with the new and improved one...
 
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#140393
Rayjay (User)
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Re:engine mods for the technically challenged 1 Month, 2 Weeks ago  
High Comprssion pistons, upgraded stator and oil pump gear, better valve springs, Nemesis or hand-ported stock manifold.
 
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#140465
BlackHorse (User)
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Re:engine mods for the technically challenged 1 Month, 2 Weeks ago  
What would an "upgraded stator" do for the bike?
 
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#140467
Musky (Moderator)
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Re:engine mods for the technically challenged 1 Month, 2 Weeks ago  
BlackHorse wrote:
What would an "upgraded stator" do for the bike?

You can't just upgrade the stator. You need to upgrade the Regulator / Rectifier too. It will give you a stronger charging system.


"1600's (and 04 1700's)

21amp stator
18amp input to rectifier w/output regulated between 14.1v to 14.9v @ no load (that is the output of regulator not connected to battery)

05 & up 1700's

29amp stator
35amp input to rectifier (same regulated output as above)"
 
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#140468
Flashback (Moderator)
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Re:engine mods for the technically challenged 1 Month, 2 Weeks ago  
The stator, along with an upgraded rectifier would up your electrical capacity. I don't know the exact numbers but I thing you gain around 10 amps.. But you must do both...
 
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