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[cvo1717]

I have 2010 cvo dynafatbob want to know if the se259 cam is a bolt in or do you have to do head work.If anyone has used this cam what gains did they see .Have TTS tuner and V/H big shots already on .
Thanks Mike

[StevesCVO]

Those cams can be swapped out with no head work. I can't tell you what gains you will see with just the cams as mine has a ton of other engine work done.

[HD Street Performance]

Assuming you have a good pipe and it is retuned properly you would likely add a few hp over 4K and take away some torque peak and noticeably shift the torque curve to the right a little. If it were me I would use  a Feuling 574 for that bike and the motor combo. Has a better track record as a 110 bolt-in. If you are looking to improve low speed torque and punch at the bottom I would leave it alone and use a good pipe and get it tuned properly.

[cvo1717]

What if i port the heads and go to 10:1 comp would that cam work?If not what do you recomend ? I was thinking of sending the heads to Branch.I am looking to get about 115 -120 hp.
thanks Mike

[HD Street Performance]

You now have a new agenda and you will need the head work, bigger throttle body, longer higher lift cams than a 259.
You will also be looking at 10.5/1 compression, better accomplished by pistons on the 110 than head milling

[cvo1717]

I really dont want to change the pistons.Also i dont want to go over 10:1 heard 90 degree days it will ping.Based on that do you think i can see 115 hp. thanks again Mike

[Heatwave]

I really dont want to change the pistons.Also i dont want to go over 10:1 heard 90 degree days it will ping.Based on that do you think i can see 115 hp. thanks again Mike

I think you can get in the ballpark of 115hp with a nice fat torque curve but it takes some work with the 110's. You'll need headwork, a relatively aggressive cam (mine are Woods 408-6 cams), larger TB, Larger injectors. I also put roller rockers in the mix but I stayed with the stock pistons. Of course you'll need a good tuner and a performance oriented pipe. I went with a D&D FatCat (+ ghost). I'm at 115hp/119ftLbs. Good luck.

[HD Street Performance]

That would be Branches call. The guy that ports your heads should be given the reins to tell you what will get what done.

I could and have made that power at that compression SAE and more importantly 123 FT LBS of torque peak and over 100 from 2200-5k with a 235 degree 575 lift cam and no piston swap.

But 120hp+ like I said is a new agenda and my choice would not be the 408 to accomplish that, but the 408 is a good cam in certain builds and would go there. I have posted previously here a dyno with a 110 that made 122 square (Jds Cycle, SAE) and had a flat as a pancake torque curve but that one had pistons and a TB swap, was FBW, and used a TW400 cam.
My experience with the 110 is you have to be very careful matching parts. They turn to a soggy ride quick when everything is not working together.

[cvo1717]

Thank you for your help guys .i am going to talk to branch tomorrow and see what he thinks .Let you know what he said tomorrow.
Thanks Mike

[HILLSIDECYCLE.COM]

Not hard to to get that type of power rolling from a 110"er.
Mr. Jim Kennedy, Paradise Performance, Matoon, Ill, has tuned our 107" combinatons, to over 120/120, as well as other tuners across the US.
Scott

[cvo1717]

Talked to Branch he said the heads and valves are a little on the big side on a 110.Does not want to take my money said i probably would not see to much of a difference.Nice guys over there .They told me the same thing as you guys 10.5:1 comp and ask Woods what cam he recomends.
thanks again Mike

[HD Street Performance]

Well yes the valves are big but the throat on the intake is 92% to the intake head diameter. Part of the throttle response and torque scheme is to correct that with a 2.12+ larger valve (same head size used in the MVA) with a different under head design. Now we sit at ~90.5%. Better flow from the bottom to the top of the valve lift range. Better throttle response. The exhaust is huge but still is no flow champion but more importantly has some inherent issues that need fixing.
If you are headed for 105-110hp a cam swap can do that otherwise the ante rises. That cam swap will net higher numbers but also moves the torque curve to the right. It is a Dyna so no need to fret over a little lost down low. If you are talking to Wood and after he suggests the TW777 or TW555 ask him about the TW8 if you really want to go. You will need to mill the heads and use a .030 head gasket to get that cam to come into it's own. Still more to be had with head work and a TB change. A good 2 into 1 is essential or Cycle Shacks, your current pipe is a horsepower and torque murderer and when the cam with added overlap is added could easily cost you 10/10.

"..the sheet shows 124 tq. and 115 hp. VERY smooth and quiet, quieter than the 255's with stock pushrods and lifters. Lots of fun to ride, Thank you for the excellent work and fast service".  This is a direct quote from an email I just got and this is a 103" Ultra LTD with mild port work and a Wood TW5-6, 9.8/1 stock TB D&D BossCat

[HILLSIDECYCLE.COM]

Talked to Branch he said the heads and valves are a little on the big side on a 110.Does not want to take my money said i probably would not see to much of a difference.Nice guys over there .They told me the same thing as you guys 10.5:1 comp and ask Woods what cam he recomends.
thanks again Mike

After working almost exclusively with www.woodcarbs.com cams, since the mid-90's, the 555, or 777 would be a great choice.
Branch said not worth the time to work those over?
Those heads are sleeping giants, and we have witnessed almost 30 cfm gains at peak lift, on our flow bench, along with GREATLY enhanced low-lift, cylinder-filling abilities, once we are completed with them here.
Dyno evidence on another message board of those(our) heads, again, on top of a smaller engine, 107", with a Wood 8, 58mm FBW, V&H H-O pipe, showing 129 hp, and 120 ft/lbs.
You simply are not going into that zip code, with the untouched OE castings. 
Scott

[cvo1717]

The sheet dewysheads is talking about with 124tq and 115hp thats  with stock pistons and you milled the heads to get the comp up.
If i am getting this right thats what i want to do.Ballpark what does something like that cost?
Mike

[cvo1717]

Talked to woods today he recomended TW777 cam if I want to use a bolt in.If I pull heads and change pistions he said either TW8 or TW9.Can TW777  be installed without pulling heads?
Thanks Mike