Had 103 kit done by harley over the winter 255 cams, se heads, and flat top pistons, hi flo air, rinehart tru duals, se race tuner. Dynos at 88 hp and 104 ft/lbs tq they kept the compression low so no compression releases. Closing in on 2500 miles and no problems. and the best thing is the factory warranty is still in place. ps runs great

 

I had the 103 kit installed along with the SE-255 cams and the heavier clutch spring on my 2007 FLHR.

No problems at all. Dealer advised that I did not need compression releases and he was right.

I had already installed a FuelPak. New settings were obtained from the web page and dialed in. No dyno work at all!

Bike runs perfectly. Huge performance increase! More bottom end torque than I expected. The engine behaves much differently. I would definitely do the exact same thing again.

Andy

 

103 build with 255 cams, SE hi flow heads, auto compression release, SERT, V&H dresser duals with Supertrapp slip ons. It runs just a bit hottter than stock, but you must expect this as it is a bigger motor. I swapped out my HD oil cooler for the Jagg 10 row. Just completed a 3,127 mile trip from New Jersey to Key West and back. Bike ran flawlessly in 100+ temps (far better than I) and gas mileage was approximately 43-44 MPG. No issues.

 

I have a 2007 Road Glide, 103- SE Stage 2-255 cams - S&S SPO Ovals, Powercommander, stock heads - NO Cr's and finally dyno tuned after 25,000 km.

The canned map may be close but nothing beats a tune...worth every penny. Reliability and enough smiles to keep me happy for a long time.

Anyway, within days after the tune I had a starter problem ( one helluva sound!)

Read all of the posts for hours, found out that MOCO had a service bulliten for the 07 starters but I was out of warranty so too bad for me.

Heard everything from need compression releases, need compensator sprocket, need the MOCO's HD starter etc.etc. etc.

Dealer would have charged $1,000 to replace starter ( to start with)

So here is what I ultimately found out. Unless there was head work done the compression from this set up should not require compression releases.
It also does not require a Heavy Duty (??) starter

I removed the starter and took it to an industrial starter and alternator repair shop. They had seen and repaired dozens of Harley TC starters.
Problem is the drive gear / clutch assembley wears on the jackshaft over time and the few thou that gets worn from the jackshaft due to turning two paint cans for cyllinders and kickback.
The guy at the shop said the stock starter is totally sufficient but in a couple of years the wear may happen again ...unless the metallurgy improves on the shaft. Long story short, they replace the assembly ($100) and it works better than new. They did it in a half hour while I waited.

Not a big job 45 min out ...45 min back in but watch out for the dowels that the bolts run through when doing the re and re. ( |If you drop them you will be hunting for awhile...this added 45 min to the job !!!LOL)

$100 repair - $25 beer - and a couple of hours and while HD could of used the money... so can I ...and the balance goes into the Road Trip account!!

Hope this helps someone out and thanks for all of the input on this site ..it is a great research tool.

 

Do the 107" and dont look back. Pick the right cam for your riding style and you will be happy. I ride 2 up 30% and the rest of the time I am scooting around with my buddy's.
I am VERY happy with my motor.
My Dyno sheet
http://www.gmrperformance.com/index....=raw&Itemid=60

 

I did the 103 on my sg 255 cams power commander w rhinehart true duals. No issue with anything other then the boot in my ***. Wasted cash should have done the 107!

 

I'm sure the 107 is a great ride, but I haven't ridden one, so can't say for a fact. I think the 103 in the touring bikes is a no brainer. (I never ride 2-up) Lots of torque right where you want it, and reliable, too. I've got the ACR's in my bike, and think some kind of CR would be a good idea.

I wouldn't have another touring bike without the 103.

 

Harley recommends the ACRs, they recalled the police bikes to add them. As long as you do this up front, you should be fine. I have the 103s in both my Dyna and RG. Nice option. About 105 torque, 83 HP. Not killer by any stretch, but nice for a couple thousand.

 

there are a lot of directions available when going to a bigger motor. i got my 08 streetglide back a few weeks ago after having harleys new kit, #27544-10 and it flat *** rocks. not peaky at all, just linear torque an hp, all in usable ranges throughout. it has the 10.5 pop up forged pistons, .579" lift cams, and is intended for use with stock heads. i suppose i could have gained a bit more power if i'd had the heads ported, but i just wanted reliable power, not something that was a pain to ride. while the heads were off i did the mechanical compression releases, almost necessary with that compression ratio. and the s.e. compensator to keep things tight, as i feel that the stock compensator is harleys weak link. the kit also comes with the newer version of the sert, which is now called the sepst, or screamin eagle pro super tuner. it has the auto tune function and memory built in if you want to use it. i get absolutely no pinging, it just runs great. the only thing wrong with going to the 103 is that i didn't do it sooner. hope this is useful information for you brett.

 

i almost forgot to mention that i also had it dyno tuned by an absolute magician who is a real dyno wizard. i'm also running the zippers deeper air cleaner element along with the vance & hines 2 into 1 pro pipe with the very long primary tubes to keep the torque band from being peaky. it's got 90 ft lbs of torque at 1700 rpm's and just climbs in a very linear fashion. 98.56 hp and 104 ft lbs of torque. loads of room under the graph lines just like the doctor ordered. the numbers themself may not seem to be so impressive, but if you saw the dyno sheet, you'd see why this, for me, was the ultimate build for not only a very powerful motor, but one which is very reliable also. harley puts a lot of research in their racing program, so i tend to trust them. those new harley cams #279 with the .579" lift are awesome. a bit of headwork could gain a few more horses, but i wasn't interested in bragging rights or bar stool racing.