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[nbomar]

I have a 2011 flhxse2 and my business partner has a 2012 flhxse3.  We usually do things together as it keeps the business funds equal. We are thinking about building our engines to get a little more out of them. We currently have the SERT, the d&d fatcat 2 into 1 exhaust, and the factory air cleaner setup. We are considering going to a 113ci or a 117ci setup. Is there anything we should or should not do or get? Both of us are novices at this and I want to somewhat know what I'm talking about when speaking with the mechanic about what I want. Any helpful advice would be appreciated.

[North Star]

I would say first try cams with headwork on your 110. That, along with a good tune would give you much improved low end tq, and would probably be good for approx 100 hp/125 tq.

If that wasnt good enough for you,  consider a HD 120" crate motor.

[trippy]

Are you sure you want to go to 113 or 117, that means splitting the cases and getting them bored out to take the larger cylinders, but if thats what you want and money is freely available then along with getting the cases bored out you should get the timken bearing conversion done at the same time.

There is a lot more but i`ll let others with more knowledge take up the story.

Have fun.

[trippy]

Forgot to mention the crank, get it checked for trueness and have it plugged or wielded.

[Heatwave]

I have a 2011 flhxse2 and my business partner has a 2012 flhxse3.  We usually do things together as it keeps the business funds equal. We are thinking about building our engines to get a little more out of them. We currently have the SERT, the d&d fatcat 2 into 1 exhaust, and the factory air cleaner setup. We are considering going to a 113ci or a 117ci setup. Is there anything we should or should not do or get? Both of us are novices at this and I want to somewhat know what I'm talking about when speaking with the mechanic about what I want. Any helpful advice would be appreciated.

I have a 2010 SE Ultra. At the time, the 120R from HD had not been released. If I had to do it over, I might have considered just taking the stock 110 out of the bike, selling it on Ebay and installing the 120. Essentially it would have cost about the same or less than the engine build I did (after taking into consideration the sale of the stock 110). Downside is the impact on the warranty for a new bike. My dealer did the build so they agreed to honor the extended warranty since they used mostly HD parts (although the cam, valves and valves springs are not from HD).

If the warranty isn't an issue to you then I would definitely do a direct swap to the 120R. It'll cost about the same or less and you'll have far more power than you can get out of upgrading to a 113 or 117.

[smkblwr]

for me i try to figuare out what rideablity I want from the bike, "bar hopper or touring",  on my 117ci first thing for me was Weld, Balance, and True the Crank, then adjust the compression to what you want to do with the bike. for example when i built this one, i wanted the compression ratio to be long distance touring freindly so mine is about 9.8, them choose a cam that will put you in the rpm ban that you will spend most of your time. for me I want the torque to come on around 2500 to 3000rpm range and hold out good till 6000rpms before it falls off badly. adjust the head work to accodate the cam with some room to go to a bigger cam in the future if my needs change. I talked and talked with my builder before we got into it, just so he knew what i wanted and I knew what was possible. I asked for all the useable torque at the tire that i could get and still stay in line with what i wanted to do to the motor. I am very happy with the results   take you time talk to different builders, surf the web and look at dyno sheets, gain as much info as you can and dont be afraid to ask builders "WHY" when you dont understand. If a builder wont take the time to help me understand, it makes wonder what else they aren't taking there time on. jmo  

[HD Street Performance]

The 120r is a game changer, buy that.
The MOCO hit the ball well on this one. You still have the stock motor as a spare or for resale where the big motor does not command a premium.

[HILLSIDECYCLE.COM]

...................but they need roller rockers, about 3/4 of a point compression to optimize, a good throttle body, clutch upgrade, and a good pipe to allow proper breathing, to expose the worth of it.
Don't forget the remove/replace labor, filter/fluids/plugs/gaskets.
Shakes out to some substancial dough...........
Scott

[cvobiker]

...................but they need roller rockers, about 3/4 of a point compression to optimize, a good throttle body, clutch upgrade, and a good pipe to allow proper breathing, to expose the worth of it.
Don't forget the remove/replace labor, filter/fluids/plugs/gaskets.
Shakes out to some substancial dough...........
Scott

Those are all aftereffects, things we dont think about. Isn't it amazing though how we manage to work them into our builds we didn't budget for....  What would we do without good ole American Express 

[captdave221]

Just remember it is not a good idea to bore out the cases on a 110" to make it a 113" as there will not be enough room on the base gasket area to get a good seal. There will be some of the "o" ring relief left from the 110".

[Unbalanced]

Save your money on the 110/113/117 or other and just buy a 120r and be done with it.   Sell the 110 if you must to recoup the little extra, or keep it so when you sell the bike you can keep your 120 for the next one.

[cahdbiker]

nbomar, If you and your friend go on long trips I would stay away from a larger engine. On my 09 with Fulsac stage one kit I can easily go 180 miles with  passenger and luggage before I even think about a gas stop. I know most people don't usually ride that much without taking a break, and we usually stop and stretch between 120 and 150 miles but it is something to think about.CAHDBIKER