cams
I personally would look for cams with intake closing B4 40 degrees and lift less than .555 or so. These spec are not carved in stone, but for me they are a place to start. These are my personal choices to keep the cam mild and not too radical IMO. Some guys think such a cam isn't even worth doing. They'd prefer a bigger cam. I disagree. Especially in a bagger.
Lot's of guys like SE255's, there's certainly a ton of them on the used market, but they are not for me.
Do lots of reading b4 you chose. Pay attention to WHY a person likes a particular cam. Disregard posts that say "I like XXX cams!" and nothing else. Too much brand loyalty in cams IMO. Where the cam performs in the powerband and why it acts that way are what is important. Once you've got that figured out, you can make up your own mind.
07' and up Twin Cams generally respond very well to any cam change. That said, there are better and worse choices based on your personal needs.
Read, Read, and Read some more.
Last edited by ocezam; Jan 1, 2012 at 11:24 AM.
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If you aren't concerned with performance below 3k RPM you have much more to choose from. The stock 96" engine has compression that's low enough to cause low-end torque issues when most performance cams are installed with no other mods. Among those bolt-in options that won't lessen low-end torque would include the SE255, S&S 551 Easy-Start, and Andrews 48H. If midrange and top-end power is the priority and you don't care about a modest loss below 2.5-3k rpm, I would look into the SE204, Wood 555, SE254e--just to name a few.
FWIW, I hate to continually dispel rumors to the contrary, but the TC96/SE255 combo in my 96" SG does not "fall on its face above 4k rpm." What constitutes a "fall on its face" sensation is obviously up to the individual butt dyno, but mine says it ain't so. The torque curve on this setup is very flat, although you won't get the surge or peak-HP that you would from most any other performance cams. That isn't their design goal, but even so they do pull up to the 6200 rpm redline without a perceived TQ decrease, and the HP curves I've seen climb until 5200 rpm or so, then gradually decrease. I'm assuming a well-tuned setup, of course.
Last edited by iclick; Jan 1, 2012 at 01:15 PM.
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Now if I could just get my friggin true duals already! Come on "Brown"!











