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[Desertwndrr]

HD Street Perf, i just saw your comment about Wes, yea i agree. I didn't think of taking the part number to the web - I know they only give a part number but not a specs like valve dimensions.
Chris thanks for the Zippers/Red Shift suggestion.  I got the following from Pete @ Zippers:
We have an excellent cam choice for your CVO Road King!
The Red Shift 576 Cam.
This can was designed specifically for the CVO 103” Engines and will provide you with the TQ that you are looking for!
NOTE: The graph states that the cam used is the 575. The 576 is the revised version of the 575 to work with the dual springs that are in your heads. The numbers will be exactly the same but the 576 will run quieter in your engine. These heads have a dual spring and are NOT the beehive style springs. They also have heavier 5/16" valve stems. This is why we are recommending the 576 cams for this application. These heads flow more than a stock 103 head and the 575/576 was designed specifically for this engine.

John, thanks for those specs
At this point,  think I may be going this route (RS 576) - from what I've seen on their site, they'll get better if I have a future comp bump & increased airflow.

I have the 576 cam in a 2006 CVO Fatboy.  The difference between the 575 and the 576 as it was explained to me was the shape of the ramps, which make the 576 a quieter cam.  I can vouch for the 576 cam being a good match to the CVO103 motor.  Runs great.  Really quiet.

[roadking321]

Desertwndrr, did you do any mods other than the cams? (valves, springs, flow?) I think yours was only available w/ EFI, correct? What fuel management are you using as well as exhaust?  Do you have any dyno tuning info on what I can expect? thanks
Paul

[Phaq2]

So what the cam of choice here? I have a friend's '04 bike in for tensioners lifters and he's thinking about cams? What about Andrews 48?
TIA

[roadking321]

Phaq2, oh man, I'm still undecided- it depends on what kind of bike (weight of bike & load) & what type riding you do. Desertwnndr (FatBoy) really likes em but I'm waiting to hear from someone who has a touring bike. My concern is the late opening of 25* on a heavy bike - I hope somebody out there that's had say an Andrews 21N or similar like I do on my other Road King to give a thumbs up or down

[Ironhorse]

This is a good tool to use for cam spec comparisons.

http://www.bigboyzheadporting.com/tccams.htm

After speaking with HD-Dude again, I'm going to go with the 583 cam. Comes on at 1,500 and pulls to 5,000. Good low end torque.

[Phaq2]

Sorry....its an 04 Ultra 103. I did put the Andrews 21N conversion cams in another friend's  05 Ultra but that was a stock 88 cu. in. motor and he loves them.
Being the 04 is a 103 the heads have the 1.90 intake valves and the low compression is making me think about another grind here. The early intake close of 29 and short duration of 222 in the 48 I'm think would work in this motor with no other work other than a D&D Fat Cat.

Just saw HDSP post.....

[HD Street Performance]

330-0004 will work on the early chain drive, non-EZ start, and comes with an install kit

[JCZ]

When my 2003 was new I had the stock head pipe, V & H can's, PCIII, and Zippers air filter it dyno'ed at 85HP. Freedom Cycle owner Brad Yuill had a hot CVO set up back in those years for the 103. At 15K I added the YB14SC cam's, gear drive, true dual Freedom exhaust and it dyno'ed at 103HP. It made it a really fun ride. It now has 37K and has'nt had any problems with that set up. Interesting that Freedom also had .575 cams but didn't use them on the CVO's?

You can research it on this forum.....this was the cam most commonly used with the 103" on the 03-05 model year CVOs.  They were all over this forum back in those years.

[roadking321]

Ironhorse, those do look like a nice set of cams (583's) but I also saw the 551's so...

[Ironhorse]

Ironhorse, those do look like a nice set of cams (583's) but I also saw the 551's so...

Like I said earlier, the 551s were my first choice.

But after talking with Jim (HD-Dude) we settled on the 583s. The way he explained it, whereas the 551s come on off idle, the 583s come on at 1500. And since I have to come off idle to get the bike moving, we decided to move the power band some 300-400 rpms. Plus, he said the exhaust valve on the 583 stays open a little longer, and that may help a little bit with heat. Maybe nothing you can feel on the side of your leg, but just a little. Either cam is a good choice for my style of 2-Up long haul riding.

I hope to get the bike back in a week or so. When I do I'll post the dyno numbers.

Mark

[roadking321]

Ironhorse, I'd really love to see what the dyno sheet says & your opinion when you get the bike back. I emailed S&S tech dept - he said he thought my choice should be the 510's since i wouldn't need to change the springs (huh?) i mentioned I shouldn't need to & he replied the 583's should work well in the rpm range I'm looking for (1500-5000). Looking at the cam specs, I'm surprised S&S lists this as a cam for softftails/dynas. I think I'm ready to pull the trigger on a set. Did you do gears, hydro conversion or stay with stock chains?
thanks,
Paul

[HD Street Performance]

The 510 would not be a great choice but an improvement over stock. No spring change needed. An Andrews tw48 would be better than the S&S offerings but then we have my opinion pitted against the others. The other S&S cams are ok too but the 510 would not give the torque bump the others would.

[roadking321]

HD SP, OK you have my attention & I'm listening - first of all I see you are a vendor, who do you represent, a manufacturer or performance shop?  I've always read in the past that on a touring bike, its best to have an early opening cam for torque.  From the specs I've seen the S&S 538 fits that spec better than the Andrews 48 - do you have experience in these cams on a touring bike?  As I've said, I have a 21N in my other RK & really like it for the low end tq but the stock SE253 is also an early opening cam (7*) so I guess that shoots my initial theory.  This is frustrating as hell since everybody has their own opinion but few have tried/used diff cams on the same bike & since almost any cam change will give better performance than the stock EPA friendly cams.
thanks

[Ironhorse]

I got an update from HD-Dude, it's coming together! Sticking with chain drive and updated tensioners. Dave "WrongWay", the previous owner installed a Fueling Cam Plate, so we'll be using that too.

[hd-dude]

I got an update from HD-Dude, it's coming together! Sticking with chain drive and updated tensioners. Dave "WrongWay", the previous owner installed a Fueling Cam Plate Screamin Eagle, so we'll be using that too.

It has the Screamin eagle hydro conversion kit....