Stage IV 103....cams?

[hogghead]

I just purchased the new Stage IV 103 kit out of the SE catalog. Now before I get lectures about how I need to have the heads sent out and "worked"....yada, yada, yada.....I'll say that I have a cycle-rama built 131 in my softail and it's great but not what I'm trying to accomplish here. That being said the kit has this:
Kit includes
high performance / high flow Screamin’ Eagle Performance
110+ Heads which include large intake valves at 2.125" diameter
(our biggest ever), high compression forged aluminum
10.5:1 pistons matched to the 110+ heads, an SE260 cam to
open the valves appropriately, allowing the right balance of
air and fuel to enter, Perfect-Fit Pushrods to accommodate
the higher cam lift, a 58mm EFI throttle body to get that air
flow to the heads, big 3-7/8" diameter highlighted cylinders,
then topping off this kit off with a “must have” Super Tuner
to provide the right tuning capabilities. Kit includes gaskets.
Now, again, I know that there's a lot that could be done to make this setup even better than what it is, but I see the cams as the weakest point in this for my FLHX. So, what would be the ideal cam to make this setup work the best possible with an emphasis on TQ in the low to mid range. Thanks in advance.

[DEW2112]

I would think that a 2.125" intake valve is way too big to make power in the low to mid range where your lookin to make power.

[SLPER]

Originally Posted by hogghead

I just purchased the new Stage IV 103 kit out of the SE catalog. Now before I get lectures about how I need to have the heads sent out and "worked"....yada, yada, yada.....I'll say that I have a cycle-rama built 131 in my softail and it's great but not what I'm trying to accomplish here. That being said the kit has this:
Kit includes
high performance / high flow Screamin’ Eagle Performance
110+ Heads which include large intake valves at 2.125" diameter
(our biggest ever), high compression forged aluminum
10.5:1 pistons matched to the 110+ heads, an SE260 cam to
open the valves appropriately, allowing the right balance of
air and fuel to enter, Perfect-Fit Pushrods to accommodate
the higher cam lift, a 58mm EFI throttle body to get that air
flow to the heads, big 3-7/8" diameter highlighted cylinders,
then topping off this kit off with a “must have” Super Tuner
to provide the right tuning capabilities. Kit includes gaskets.
Now, again, I know that there's a lot that could be done to make this setup even better than what it is, but I see the cams as the weakest point in this for my FLHX. So, what would be the ideal cam to make this setup work the best possible with an emphasis on TQ in the low to mid range. Thanks in advance.

Well at least it sounds dramatic....Probably announced the weak point at 2.125 valves...JMHO and I know jackshlt anyway!

Good luck

[SLPER]

Originally Posted by DEW2112

I would think that a 2.125" intake valve is way too big to make power in the low to mid range where your lookin to make power.

I guess we were typing at the same time...

Cheers

[hogghead]

Originally Posted by DEW2112

I would think that a 2.125" intake valve is way too big to make power in the low to mid range where your lookin to make power.

Well like I said, I understand already the limitations of what I have. What I was looking for in terms of feedback is a recommendation on cams that can help accomplish what I'm trying to do in spite of what problems the other components add to it. I guess that there's a lot of people on here that would tell me all the wrong choices I made SO.....what if I told you that I paid NOTHING, zip, zero, nada for this stuff. Would you turn it down and say.....oh well can't do what I want with this so I guess I'll just let it go. I know that this is not the best set up. I'm trying to make do with what I've got. So DEW2112, thanks for the feedback but it's basically telling me what I already know. BTW I have a 2>1 bassani road rage pipe for this set up, in case that helps anyone in their recommendations.

[nw_guy4_fun]

Originally Posted by hogghead

Well like I said, I understand already the limitations of what I have. What I was looking for in terms of feedback is a recommendation on cams that can help accomplish what I'm trying to do in spite of what problems the other components add to it. I guess that there's a lot of people on here that would tell me all the wrong choices I made SO.....what if I told you that I paid NOTHING, zip, zero, nada for this stuff. Would you turn it down and say.....oh well can't do what I want with this so I guess I'll just let it go. I know that this is not the best set up. I'm trying to make do with what I've got. So DEW2112, thanks for the feedback but it's basically telling me what I already know. BTW I have a 2>1 bassani road rage pipe for this set up, in case that helps anyone in their recommendations.

Certainly I will do that
Cam down to the SE257 and don't use their download have it dyno tuned and a custom map built. I already spouted my contempt for ths kit on another thread I won't waste bandwidth here.

[hogghead]

Originally Posted by nw_guy4_fun

Certainly I will do that
Cam down to the SE257 and don't use their download have it dyno tuned and a custom map built. I already spouted my contempt for ths kit on another thread I won't waste bandwidth here.

I am actually interested in the contempt you spouted. Where can I find it? I don't mind hearing the negatives, it's how I learn. Thanks for your feedback too. You were spot on with what I was thinking with the 257 cams. Not complaining about your feedback, but what I'm hoping to hear about are non SE cams as I know that there are companies out there like Andrews and others that have way better profiles, I just don't know enought about them. In theory I'm guessing that a cam profile that has a fairly "slow" intake ramp would help overcome the giant valve. Maybe a custom cam is in order here, don't know.
Thanks very much!

[skyhook]

257 would work in a light bike, I'd use something smaller in a bagger, maybe 251...roadrage is a great pipe, best sounding one on the market if you like loud

[route66paul]

You can do a lot better by having one of our sponsers, or any good indy shop, to do your build, or at the least, design it to what you want. You will get much more out of it. A stock head, properly ported and valve sized, will work better on a street bike than any "special" heads.

[Fixuntilbroke]

Andrews 67g will make good power down low i have tman 625 chains that might work too

[arealinvestor]

You want to wake that package up huh???? Think Woods ,Think Woods!!! Hey did I mention think Woods Performance!!!!! Call Bob tell him what you have & he will tell you what he has for you!!!! What year is the bike? You want chain drive,or gear drive?That new 408 might just be the cam for you!!!!!!!!!

[AZFXSTB]

With 2.125 intakes you are going to be in for a fight to get your TQ in the Low to mid range. An early closing cam will help but your pumping air through a fire hose when you need a garden hose. If it were me I would sell that whole kit you paid nothing for, and take your ball and play someplace else

[hogghead]

I've decided to put more displacement under those heads. I see that there is a kit to build a 113 with a piston combo that makes 11:1 compression. Anyone have any thoughts on that? I can go 10.5 with a different piston but why not go the 11:1? Feedback is what I'm looking for. So 10.5:1 or 11:1 and can I stick with the SE260 cam for that or am I still looking for a cam change? Great help guys.

[Hillsidecycle.com]

As arealinvester, already mentioned, and you want the emphasis on torque, a set of Bob Wood 408-44 Magnum, or 400(G) cams, along with his spring kit. It'll hit and keep on going.

[hogghead]

Originally Posted by Hillsidecycle.com

As arealinvester, already mentioned, and you want the emphasis on torque, a set of Bob Wood 408-44 Magnum, or 400(G) cams, along with his spring kit. It'll hit and keep on going.

In the title you put 110", is that the displacement you mean that will work with those cams? If I ran those 110+ heads with the 4" jugs and 10.5:1 pistons and those cams, it would be a good set up? I just figured that if I'm going to go this far I might as well get the 113 kit with the 11:1 pistons. What would you use in that? Just curious, I can go 110 I just need to figure out what I'm doing fairly quickly because down here in FL, our riding season is really just starting and I don't want to have a lot of down time for my bike. I've read a lot of your comments and I have a great amount of respect for your knowledge. No disrespect to anyone but I've kinda been waiting for an actual builder to chime in. So, 110 at 10.5:1 with those woods cams, or if I decide to go 113 at 11:1 then what and is that even feasible (11:1) for a street motor. Thanks very much