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Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
I have never seen a cam only 103 break 100 hp. Not sure any of them can. Some at 98 but that's best I've seen 2500-4500 rpm is what counts anyways for the street build.
Here you go. It surprised me to see 100 hp as well, but it's doable, probably not very common at all though. Dyno'd with Rinehart duals and high flow air filter, otherwise stock. I'm betting however, it took a good bit of tuning to get it to this point. Wes Brown sent this to me:
I put the 222's in my 12 SG and couldn't be happier as far as 2up TQ low rpm riding goes. The one thing I have noticed that made a huge difference was having the local HD shop do a custom map for it on the dyno vs a canned download...night and day difference. Just my .02
*** one other thing I have noticed is the 222's make LESS valve train noise then the stockers did in my bike.
I ended up with 92.6/112.3. It pulls better down low and much better past 2,500rpm's. it also gave it slightly different, but just as pleasant sound. I was easily able to spin the back tire and popping the clutch to second , lifted the front tire off the ground an inch or two.
Last edited by Bafflingbs; Apr 18, 2017 at 03:09 PM.
I would've thought a little more on the hp but the torque curve is real nice.... And like you it's the torque that really matters for our kind of riding... AFR could be a little lower though. Nice ride, enjoy.....
I would've thought a little more on the hp but the torque curve is real nice.... And like you it's the torque that really matters for our kind of riding... AFR could be a little lower though. Nice ride, enjoy.....
He tried going lower, but it hurt the numbers. After 23 pulls, that's where it ran the best. I don't understand either, but, he's always done right by me. It does run damn good and damn smooth., so, what the hell do I know. Before the cam install he dyno' me at 13.5/1
So, essentially, I got 6 HP and 5lbs. TQ from a cam. But, I believe my fuel mileage went up as well. It is much more responsive, and a sudden jerk on the throttle is felt immediately.
Last edited by Bafflingbs; Apr 19, 2017 at 10:19 AM.
I put the 222's in my 12 SG and couldn't be happier as far as 2up TQ low rpm riding goes. The one thing I have noticed that made a huge difference was having the local HD shop do a custom map for it on the dyno vs a canned download...night and day difference. Just my .02
*** one other thing I have noticed is the 222's make LESS valve train noise then the stockers did in my bike.
So, essentially, I got 6 HP and 5lbs. TQ from a cam. But, I believe my fuel mileage went up as well. It is much more responsive, and a sudden jerk on the throttle is felt immediately.
If you are happy with the results; that's what counts.
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