103" cam pick: SE255 - SE254 -SE204
Outstanding HDF Member
Joined: Jan 2007
Posts: 2,598
Likes: 19
From: Naples FL / Pine TWP PA
I have not seen a dyno chart, what I did find was two individuals that have both run the 255s and 254Es in 103s and they say they can't tell a deference between the cams riding.
Tourer
Joined: Apr 2011
Posts: 454
Likes: 1
From: Micawber, Manitoba
Installed SE A/C, Fatshotz, SE255s and factory download before delivery. Parts are registered with HD and have full factory warranty. Must be done within 60 days of purchase.
Bike really has low end torque and really comes on after 2700. Very hard on gas at beginning, tank lasted under 100 miles on highway. Ride at 107kph in 6th, do not need to downshift when passing.
Perfect for highway riding.
Bike really has low end torque and really comes on after 2700. Very hard on gas at beginning, tank lasted under 100 miles on highway. Ride at 107kph in 6th, do not need to downshift when passing.
Perfect for highway riding.
Last edited by Ole T Sport; May 22, 2011 at 06:16 PM.
The compression of stock 103" using .045 head gaskets is a good spot for 204's. Bumping up the compression with .030 head gaskets "might" make it a bit more difficult to tune...
Road Warrior
Joined: Feb 2008
Posts: 1,313
Likes: 1
From: Wagoner, Oklahoma
I started out with just the SE255 cams and ended up going ahead and adding the 103. My dyno chart showed the cam picking up at 2500 rpm and then running out at 3500 which is where I do most of my riding. My hp is only 72 but the torque is at 98 fp. I like this combo really well good luck in your decision...
Stellar HDF Member
Joined: Nov 2010
Posts: 2,576
Likes: 465
From: Maryland
Cams, oil, and tires. Doesn't make a difference which one you pick out of the three there is always someone with a different opinion is what I'm finding. You are doing the right thing by doing your research. Good luck and hopefully when you finally make your decision only you and you alone can make the determination of satisfaction with whatever cam you choose.
Cruiser
Joined: Aug 2008
Posts: 211
Likes: 0
I first added AC ,pipes and TTS master tune, got a great bump in overall performance. Then after 5,000 miles on the 103 Limited, installed se255 cams. GREAT boost in low speed to mid range torque, perfect for anyone that wants the most out of the 1500 to 4,000 rpm range. Are there cams that will pull harder? Yes, but not till past 2500 rpm, and usually more.
For us guys that ride two up, or just like the low end torque these motors are known for, its hard to find a better all around cam with great manners IMHO. There are only a couple of other cams I would consider for my stock 103 and my riding style. One being the 48h. It is basically a touch better for HP than the se255, not having emissions constraints to worry about. It also has an intake valve closing point very close to the 255, which keeps the torque down low. I went with the se 255s because I got them used, and at $150, pretty tuff to beat for the money. As for the "high lift", they are factory cams in the CVO 110 motors, so whats the salesman's concern? Just lack of knowledge, or sales hype.
For us guys that ride two up, or just like the low end torque these motors are known for, its hard to find a better all around cam with great manners IMHO. There are only a couple of other cams I would consider for my stock 103 and my riding style. One being the 48h. It is basically a touch better for HP than the se255, not having emissions constraints to worry about. It also has an intake valve closing point very close to the 255, which keeps the torque down low. I went with the se 255s because I got them used, and at $150, pretty tuff to beat for the money. As for the "high lift", they are factory cams in the CVO 110 motors, so whats the salesman's concern? Just lack of knowledge, or sales hype.
Last edited by gregsdart; May 22, 2011 at 04:34 PM.
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Outstanding HDF Member
Joined: Jan 2007
Posts: 2,598
Likes: 19
From: Naples FL / Pine TWP PA
I'm with you on that. I was talking with the machinist doing my heads (the guy is also a serious Harley drag racer) and he prefers SE cams over just about anything in the aftermarket. He claims that Harley puts more R&D into their cams than the after market can afford to do.
Grand HDF Member
Joined: Nov 2004
Posts: 3,917
Likes: 184
From:
Well I've got to weigh in on this one as well, I've said it several time's but will again, the 204 cams are the best cams I've ever used, I've had 203's, HQ500's and Andrews 37's and the 204's beat them all, 204's are advanced on the intake some and a closing point of 34 helps create the tq down low, I saw a comparsion of my dyno chart to a 255 and the 204's pulled as good if not better down low then blew them away around 4000 rpm's, my bike is just a 96" but it does 90hp and 102tq, thats a sae run as well, 204's in a 103 would be awesome.