103 ci SE Stage 3 kit (w/ SE 259E cams)
SE Heavy Breather
D&D Fatcats 2 into 1
SEST
Dyno tune

95 HP / 110 FP Torque (SAE corrected)

 

Who did your work? I'm right up the street!

 

ACP in Glen Burnie did the dyno

Old Glory HD put in the kit & pipes

Note that this kit uses stock heads

 

Ahhh. I refuse to go down there. Tried to buy a bike from them and they refused to deal. No big deal, but i bought a new bike for what they were trying to sell a used one I was looking at. I don't take it personally but I could just find a better deal elsewhere.

Tried to give them a shot at service but they make it impossible to not leave it there for at least one night. Being in Baltimore City its kinda tough to get a ride to/from with a drop off.

I take most of my business to HD of MD in Elkridge. Anyways...

I may do a 103 build this winter if i rack up the miles I did last year (12K). We'll see...

 

The 103 is a HUGE difference from the 96. I'm sure Elkridge can put on the very same kit, as it comes right from the SE Race Catalog. Figure around $2,500.00 installed PLUS the dyno afterwards if you go this same route...

 

Just curious, what makes yours a Stage 3 if you didn't do the heads?

 

I think that it is considered a stage 3 because it has different cams and more compression than a stage 2 103.

I was looking at that kit myself. Seems like a pretty good deal. I dont need the race tuner and clutch so it would be less than a grand in parts. Those are some pretty good numbers!! How does it feel? Still have good low end?

 

Low end took the bulk of the dyno work.

Runs great now (albeit a tiny, tiny bit choppy in the low end still)

Smooth as silk and quiet when cruising, loud and boisterous in the low end

 

how many days did it take Elkridge to do the work.... it seems those guys dont stock much there and there service department seems less than steller. i purchased my 09 Fatty there but there lacking it seems at the service counter

 

Thinking the same thing about STG 3,, always though it included ported heads..

Just looked up some sites on it...
Heres the article John Gall wrote about it..same as others I just read

Bolt On Power For Your Twin Cam Harley Davidson

by: John Gall

For those owners of the Twin Cam Harley Davidson Motorcycle you may find that the 63 HP your bike has from the factory is not quite enough power. While the Twin Cam engine is a great improvement over the 80 inch Evolution motor there is much that can be done to make more power.

Stage 1
The Twin Cam motor in most new Harley Davidson Motorcycles is stock as an 88 inch twin cylinder motor. Stock horsepower is around 63 and makes for a decent ride with generally acceptable power. Adding what is known as a Stage 1 kit can boost this power to 70+ HP. A typical stage 1 bolt on will include new exhaust, and air cleaner. Some folks will also put a carb kit in their stock CV carburetor or bolt on an aftermarket carb like an S&S B or Mikuni HSR42. For those folks with fuel injection a new map can be added that will make your motorcycle work well with the new exhaust and air cleaner.

Stage 2
When 70HP isn't enough, you can get to about 80 HP by adding a big bore kit. You can either have the cylinders bored out or bolt on new cylinders. Harley sells a 95 inch big bore kit that includes the new cylinders and pistons. I'd recommend using Forged pistons as they can be reused if you decide to add new heads in the Stage 3. Common in the stage 2 build is the addition of a new CAM. The combination of the 95 inch kit, cam and pistons should get your motorcycle in the 80HP range.

Stage 3
For those with more money to spend you can further boost your power 90-95HP by adding new Cylinder Heads and forged pistons. On my 2000 FXSTS this put me at 96HP and 100 Ft/Lbs of Torque. Depending on the parts you choose you may get more or less HP than what's indicated here. The idea was to provide a basic description of the various stages and parts involved. For exhaust I’d recommend for max midrange benefit choose a two into one system. If you must go with a two into two then try and find a manufacturer that specializes in performance like the Python III. There are many makers of great looking and sounding pipes but performance is usually an afterthought.

About The Author
John Gall has been riding Harley Davidson Motorcycle for many years. He runs several websites related to motorcycles and Harley-Davidson.