HD 103" Pro Stage IV Kit ??
Ultimate HDF Member
Joined: Jan 2008
Posts: 6,532
Likes: 132
From: SoCal
I have this same kit in my 2011 Dyna Wide Glide. I love this kit and I had this installed before I even picked the bike up. My kit has the 110+ heads and 260 cams and it screams especially around 3200 to redline. Making over 100 TQ wise in this area. I had mine tuned by Bean at Big Boyz one of the best by far. Only had roughly 800 miles on it when tuned so I'm sure its loosened up a little now. My numbers were 114.9 HP and 113.3 TQ. I am very happy with it. I can't leave well enough alone so at some point during the winter months here in Maine I will have Big Boyz do there magic to the heads and go with .030 head gaskets. I will say on a Dyna its almost scary best 1/4 mile speed according to my dakota digital speedo was 117 so believe me when I say it cranks Good luck and enjoy. Ride safe but Ride like Hell
Cruiser
Joined: Jun 2012
Posts: 145
Likes: 0
From: Maine
You made me curious with your post so I went and double checked my dyno sheets. Yes Beans dyno is very conservative compared to the DJs and he tunes for the best all around tune for drivability not just to get you the high numbers everyone wants. As I checked my paperwork on Beans dyno my numbers were 106.57 HP and 103.78 TQ so you were right I was not present the whole time when Bean did mine which was figured in my sale with the dealership. The other numbers were from The DDealers DJ so I really never checked my paperwork which dyno printout I was given. So since I only live a few miles from Bean I swung in and got the printout for his dyno. Bean is the Man. He did a great job on my WG and also my 96 Road King which I was there for the whole tune. So to clear things up different dynos but same day. Either way I'm happy and like Bean said to me Anything over 100/100 on his dyno its making some serious power. As I got talking to him he told me about a 120R he did. The guy made huge power but the drivability sucked. I think 130s he said. When he was done it was under 120 hp on his but the guy was happy and said it ran way better and was smooth. So no matter what I really don't care about numbers as a whole but I know I trust Bean and his work. Matter of fact gonna do a few dyno runs in two weeks at another dealership on a DJ so I'll see what I get for numbers on theres especially my motor with some miles on it and loosened yp some. Ride safe but Ride like Hell
Ultimate HDF Member
Joined: Jan 2008
Posts: 6,532
Likes: 132
From: SoCal
You made me curious with your post so I went and double checked my dyno sheets. Yes Beans dyno is very conservative compared to the DJs and he tunes for the best all around tune for drivability not just to get you the high numbers everyone wants. As I checked my paperwork on Beans dyno my numbers were 106.57 HP and 103.78 TQ so you were right I was not present the whole time when Bean did mine which was figured in my sale with the dealership. The other numbers were from The DDealers DJ so I really never checked my paperwork which dyno printout I was given. So since I only live a few miles from Bean I swung in and got the printout for his dyno. Bean is the Man. He did a great job on my WG and also my 96 Road King which I was there for the whole tune. So to clear things up different dynos but same day. Either way I'm happy and like Bean said to me Anything over 100/100 on his dyno its making some serious power. As I got talking to him he told me about a 120R he did. The guy made huge power but the drivability sucked. I think 130s he said. When he was done it was under 120 hp on his but the guy was happy and said it ran way better and was smooth. So no matter what I really don't care about numbers as a whole but I know I trust Bean and his work. Matter of fact gonna do a few dyno runs in two weeks at another dealership on a DJ so I'll see what I get for numbers on theres especially my motor with some miles on it and loosened yp some. Ride safe but Ride like Hell
Stage II
Joined: Jul 2012
Posts: 2
Likes: 0
From: lancaster, ca
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Advanced
Joined: Jul 2008
Posts: 58
Likes: 0
From: Ohio
You will need to know what pistons were installed, not the compression ratio, the part #. 10.5 pistons for stock heads won't yield nearly that when 110+ heads are used. There are 10.5 pistons for 110+ heads, thats why you need to know what pistons(part #) were actually installed. What head gaskets were installed? The ones that came with the kit? What was the piston to deck height? What is the actual cranking pressure? You need to know all this. I upped my hp/tq about 15-20 without increasing displacement. I got my ccp up from 175 to 195( a cam change, no higher lift and an earlier intake valve close) and re-tuned. Voila. Most dealer will just slap the parts on from the kit. The kit on your bike should have had the proper pistons but the cams were 260's originally, so who knows what else has been changed. Was it tuned or did the dealer just install a downloaded Stage IV map, which won't be optimum by the way, and check the out put. What pushrods were used? The ones in the kit? Adjustables? Whose and which ones? I had SE non tapered adjustables and they hit the tubes. Were the lower rocker boxes ground for valve spring clearance? Mine weren't and the valve springs rubbed making noise. Sorry for hitting you with all this but you asked, yes you can optimize what you have and gain performance without increasing displacement.