Have an 04 ultra.Other than some loud pipes the prior owner put on it is stock.Question,what is the best way to get 10 more hosepower out of it,other than putting a 103 kit on it?It has 70,000 miles on it but runs perfect.I think a 103 kit would cost me about 4 grand.64 horsepower just isnt enough for an 850 pound bike.A 95 inch kit would give more power but dont know how the original lower end would hold up to a new topend.Probably 5 horsepower could be had by stage one,but think i need 10 more.Passing cars requires downshift unless i have lots of room and level ground to do it on.When my wife and i were in sturgis no ones bike ran as well because of the elevation, but all my riding will be here on lowland territory.Do you really feel the difference from a stage 1 kit?

 

How about going 95" and a set of cams along with a tuner? I think that would work nicely for you. Could be had total for about $2k

 

Yep, what Dawg said. You could opt for the 95", or up to a 98" from some of the site sponsors and shops discussed here and in the engine forum. The bottom end really shouldn't be a concern for a big bore build. Torque is the name of the game, not the horsepower. A big bore with a good cam and tune would give you a stump puller, especially compared to just the pipes and air cleaner upgrade.

If I had it to do over again, I'd just save my money until I was ready for the big bore and do it all at once. Live and learn.

 

When my '06 was still a stock 88" motor I added a true dual exhaust, Ness Big Sucker air cleaner and a DynoJet PCIII. No stock 96" bikes (w/ comparable mods) could stay with my 88 incher. Most of this was due to a gearing change in '07 (taller). You should easily get 10 more hp doing something similar and you will definitely feel the difference.
My 88" motor is now 95" , 10.5-1 compr., gear drive cammed motor with headwork that runs 104 hp/ 106 tq. and now has 16K+ miles with that configuration with zero problems. I do have to run premium and average 44 mpg (with a high of 50). It's a blast to ride and cost me about $4K. Unless there is a need (crank run-out) to split the cases it isn't really necessary for making some fun power. Anything over 90 hp/tq will surely make you smile.

 

All these sound like good ideas.Ididnt want to spend much money, but realize it costs a lot to get any power out of these motors.I dont expect a 900 pound bike to be a tire burner.Stump puller like one guy said is what I want.i dont ride fast anyway.

 

If that's what you want then how about just doing a stage one with a good low end torque cam?

 

I dont know much about these engines.Iknow there are as many cam varieties as there are accessories almost.I think the 95 inch kit will suit all my needs.

 

I went with the 98" for about 4 grand. Man, was it worth it. From 66 hp to 94hp and from 70 lb tq to 110 lb tq and from 40 mpg to 47 mpg. And a helluva lot more fun to ride. My indy told me he could get up 105 hp, but my mileage would suffer. I told him I'd rather have the mileage.I didn't have the build to race, but I still like to get stupid every now and again. It's a guy thing.

 

I have an 05 Ultra. Went with the 95" and cam. Made alot of difference from stock.

 

95", cams, tuner, exhaust, and a dyno.