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[nudels2u75]

Maybe I should just do the stage 4 upgrade, I just heard of this

[Dr.D]

Maybe I should just do the stage 4 upgrade, I just heard of this

As opposed to what? Heard of what? Is there more to this thread?

[phato1]

What's stage 4? An S&S 124?

[grc]

I'm not aware of a Stage IV kit from Harley for a CVO 110 engine.  And if you're really looking for  stronger performance down low as you mentioned in a different thread, I think you'll find that Harley's Stage IV kits include cams that come on at higher rpms.

If you want to truly upgrade the power of your bike I'd suggest consulting a real full time professional engine builder, and avoid your dealer like the plague.  You tell the pro what you want to accomplish, and let him offer his suggestions on various approaches to meet your needs.  And don't forget that any serious increases in power will require a lot more than just bolting in some cams and riding off into the sunset.  And of course you will also need to address the many reliability issues that any serious increase in power will expose as well.

I have no idea if you're a person who cares about warranty or a person who feels comfortable blowing off the warranty and just doing whatever mods you want and taking the risk yourself.  But it is a consideration, and you need to understand that these kinds of mods will void the powertrain portion of the warranty.

Jerry

[nudels2u75]

http://www.harley-davidson.com/en_US/Media/downloads/Racing/US_SE_P.pdf

Just found this

[phato1]

Looks to me like the HD "kits" are for 103 Cu In and smaller nothing for the 110 as far as "stage kits"- even in the new catalog - that link you provided is for the '09 version

[grc]

The catalog I used was the 2014 version and there still isn't a Stage IV kit listed for the CVO 110.  There is a Stage III kit (used to be the 110 Upgrade Kit in older catalogs), with the 259e cams and 10.5 compression pistons.

Jerry

[phato1]

Hmmm  didn't see that one online using the HD site. I did see one "kit" to take the 96" or 103" out to 110" but I don't see anything to be gained by using those parts.  Does the kit you saw have higher flowing heads to go along with the 259's and HC pistons?

 Like you said before Jerry -- find a reputable builder and tell them what your expectations/desires are and let the builder be your guide - just be ready to start writing checks, a quality build ain't cheap and a cheap build ain't quality.....

[Mr D]

Maybe I should just do the stage 4 upgrade, I just heard of this

What is your goal?

[nudels2u75]

I am trying to get some low end power for Siteseeing and riding the back roads, just found this one 2014 Screaming eagle pro racing parts, page 41 C. Screaming Eagle Pro Stage 111 Race Kit-110 cubic inches.....and then read it does not cover the Water cooled motor...

I want some low end power, some aggressive riding

https://www.harley-davidson.com/content/dam/h-d/documents/catalog/2014-screamin-eagle-catalog.pdf

I was told now may have to wait until August

[grc]

I am trying to get some low end power for Siteseeing and riding the back roads, just found this one 2014 Screaming eagle pro racing parts, page 41 C. Screaming Eagle Pro Stage 111 Race Kit-110 cubic inches.....and then read it does not cover the Water cooled motor...

I want some low end power, some aggressive riding

https://www.harley-davidson.com/content/dam/h-d/documents/catalog/2014-screamin-eagle-catalog.pdf

I was told now may have to wait until August

Maybe you need to define exactly what it is that you are calling "low end power".  The 255 cams in the stock 110 engine have more initial low end torque than the cams in that kit.  The kitted engine will catch up and then pass the output of the stocker rather quickly and extend the power higher up the rpm range before falling off.  I'd call the 259e cams with higher compression more of a midrange setup, not low end.

Is there some particular reason why you want a Harley kit versus one of the many aftermarket options?

Jerry

[GMR-PERFORMANCE]

The Stage III kit is not the hot deal for touring in fact we have had the dealers send us the bikes to swap the cam and retune as the customer where not happy with the lack of low end power. Understand that the kit is a pistons swap ( no checking of the cylinder) cam swap,  heavy clutch spring.  Now most dealers will add larger injectors but not the t/b What you see below is the bike tuned at the dealer with the stage III kit ( 259 cams 10.5 pistons 5.3 injectors) Run shows the base line, run 57 shows the same engine with our cam installed and retuned with the same parts run 18 shows that same kit retuned again with the SE 58 t/b bolted on. This bike always seemed just a tad low on hp but a bit more tq than avg. In the end it pulls very hard. Customers is thrilled with the power that it now has. 
Dealer did the build other than the cam swap and change of the stock t/b to the larger 58 unit. Nothing was done to the engine other that what I listed.  No I have seen guys with the 259 cam adding some more compression, t/b etc and getting some larger numbers but the curve is still out to the right. So it gives you somewhat of an idea of how the curve looks.  I do feel that it it would have made a better peak number with more tuning time on the stock dealer kit however it was not going to move the tq curve way to the left. Adding the larger t/b with the 259 cam in the kit will yield the power close to what is in print but again tq curve still to the right . Cam is a a mid range style power kit.

Side note the run #7 was done in 5th as that is what I printed. 6th gear pull made same hp and 1.4 more tq on this build. Some times its more others its not.

[nudels2u75]

I Need to know in simple terms what I need to do to mty scooter to get it to perform....

I have a D&D Fat Cat Header, (Borzilla), HD Race Tuner and DYNO from Stealership before I picked my scooter up....

[GMR-PERFORMANCE]

Simple terms  the 255 makes very good low end power. With a correct tune the bike will run very well. Downside is the 255 cam will produce some heat and the power band is not super broad. Why not ride it as is for now .  Or bring it here I will install our cam and lifters tune the bike and then you will have great low end  power with much less heat and a broad power band.      You may like the tuned 255  version of the bike and find that it does everything you want it to.

[Dr.D]

I have the HD 110 upgrade kit in the CVO Fatbob and it works well there. I rode it this weekend and paid a bit of attention to the way I drove it compared to the new Limited that i have been on a lot lately (5K miles).  GMR and Jerry tell the truth the 259e cam set up is definitely in the midrange. Very strong when you get above 3200rpm and stays that way till around 5000. I love to ride the Dyna like that but i have noticed I do not ride the Limited the same way. The stock 255 cam falls off after 4krpm and I don't care for that but since the bike does not "live there" I would not appreciate the 259e setup in the bigger bike.

I am going to do what GMR said and ride a tuned 255 for a while till the engine proves itself while warranty is in effect. Who knows what happens later I have learned not to predict my future since i rarely am accurate.