HD 103" Pro Stage IV Kit ??
Outstanding HDF Member
Joined: Jun 2012
Posts: 2,248
Likes: 7
From: Atlanta, Georgia
Must be racing toddlers on tricycles or maybe 6 year olds who just learned how to ride. Aint no way in HELL you pounding crotch rockets doing 120 in 4th at 6200 rpm. I wish I wouldve seen or heard ANY cruiser riding dude talk that mess to me when I had my 2008 GSX-R 1000. That bike was good for 104 mph IN FIRST GEAR stock!!!! My bike now with a stage I and tw-7H cams does 120 in 4th at 6200 rpm and there is no way in hell im pounding on no crotch rockets or v-rods. Wont even bother telling the lie that I am because real riders or riders of modern crotch rockets will know thats a farce...SMH!!!
Elite HDF Member
Joined: Jul 2008
Posts: 4,741
Likes: 45
From: Indian Land, SC
Must be racing toddlers on tricycles or maybe 6 year olds who just learned how to ride. Aint no way in HELL you pounding crotch rockets doing 120 in 4th at 6200 rpm. I wish I wouldve seen or heard ANY cruiser riding dude talk that mess to me when I had my 2008 GSX-R 1000. That bike was good for 104 mph IN FIRST GEAR stock!!!! My bike now with a stage I and tw-7H cams does 120 in 4th at 6200 rpm and there is no way in hell im pounding on no crotch rockets or v-rods. Wont even bother telling the lie that I am because real riders or riders of modern crotch rockets will know thats a farce...SMH!!!
2013 FLHTK Anniv stage 4
just had a stage 4 kit installed at my dealer and really like the results. I haven't had it dyno'd but can really tell a difference in the pull in every gear. It has 259 cam,10.5--1 pistons heavier cutch spring 58mm intake. I am running screaming eagle street cannon exhaust an screaming eagle stage 1 air cleaner. I run 93 octane gas. My question: I am noticing more top end noise than before the build and also some Knocking noise when I accelerate. Should I be concerned about that. I am in the process of doing some smart tune runs the the super tuner pro, but so far it hasn't affected the noise. Overall the bike runs pretty well some decal pop. I haven't done anything other than smart tune runs so I have done nothing with spark advance, AFR settings ect
Any feedback would be appreciated. Thanks!!
Outstanding HDF Member
Joined: Jan 2007
Posts: 2,598
Likes: 19
From: Naples FL / Pine TWP PA
i've got the part # 27544-10 stage 4 kit, with the 10.5:1 forged pistons, 259-E cams, sepst, heavier clutch spring, the whole kit, and i added the s.e. compensator, V&H 2 into 1 pro pipe, along with the zippers deeper air cleaner element, and this is a great combination. the 255's seem to develop great torque at low rpm's but fall off about when things start getting interesting. they seem to be the flavor of the day though. the 259-E's on the other hand, pull like crazy from idle through red line at 6200 with no dip at all. a very quick rise of torque and it holds there till you hit the rev limiter if you choose to do so. i could have likely picked up a few more hp and ft lbs of torque with better heads, but this kit was designed for using the stock heads, and they flow plenty good enough. the 50% rise in horsepower and torque makes me very happy with the build. be sure you get the compression releases and better torrington/timken cam bearings put in while your motor is apart. far cheaper to do it now than realize you really need the compression releases. when the weather is hot and humid, and your bike is hot, you'll see why you need them. hope this helps.
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