Originally Posted by gliding10

I have the stage IV kit from the dealer. At first had an installation problem and over that now. I love the kit. My bike just keeps pullin when I crack the throttle. I cruise at 85 cause jersey is nuts and nobody respects motorcycles around here but when I need to get away from the cagers she is like a silver back gorilla. I dynoed the bike at a local shop and they set it up for me and dyno numbers were 112hp and 114tq. I'm very happy with the kit good luck.

Originally Posted by mjsawatzky

So I had my heart dead set on a 107 kit. With limited builders in my neck of the woods who have experience with this kit my dream started getting pretty complicated and costly to send heads and cylinders etc down to the US for boring and tweaking. Not to mention finding someone to install parts that were purchased elsewhere. Anyway I was a little frustrated with the realization that if I couldn't do this 107 myself it wasn't going to happen. So today I'm in the dealer poking around. We get chatting about service and performance etc. Well it turns out there are specials on all performance work if done before March 15th. Bottom line is I can get a hell of a deal on a 103" Pro Stage IV w/110+ heads & 260 cams.

Here are my questions....I've done some research on the 260's and they seem to come on a little late. Especially for a touring bike. Is there anything I can do to shift that torque curve over to the left a bit using this same cam? Is the 259E a better choice? Should I upgrade from the 110+ heads to the MVA heads? This kit does not include lifters...Is it suggested that I spring for the SE lifters? Obviously I am not a wizard when it comes to this stuff so your input is appreciated.

Here are the specs for the kit

screamin’ eagLe® Pro stage iV Kit – 103 cubic inches Here’s a 103 cubic inch racing kit that puts it all together for you. If your looking to build a fast, track-ready, 103 kit and want to buy all the components you need to maximize your results, here’s the kit! this eliminates the guess work on what components you should use and what works well together. We’ve put all the components together including Se perfor- mance heads that provide a great performance upgrade for a 103ci at a very attractive price. Kit includes our high- performance / high-flow Screamin’ eagle® Performance 110+ Heads which include large intake valves at 2.120" diam- eter (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. for race application only.

Originally Posted by timmyd

I bought an '09 SG last summer w/this kit in it. I love the power (105hp/104tq) and still gets 40mpg. Wondering what is the next step in performance is w/o and I say WITH OUT going to the 110 or bigger... ?? The bike has 7900mi on it the 103 kit has about 5000mi or so on it, it does have a little chatter in the rocker boxes, wondering if adjustable pushrods and roller rockers would be a good investment... looking for opinions.

Originally Posted by tem2169

I just had the the Stage IV done, but the kit you are talking about is an older version of the Stage IV kit. They are not using the MVA heads in the kit anymore. It includes the CNC Ported Factory Heads and the 259E cam now. I'm still breaking it in but it seems to be very responsive and has gobs of power. I'll get it Dyno'ed after the break-in.

Originally Posted by mtnbikerx

WTF is going on w the Stage IV EFI kit availability? Had one ordered since March.