Give Frank Drago a call.http://dragosbikeworks.com/
He's probably close to your neck of the woods and is always ready to talk about performance.
If I lived as close to him as you do, I'd have him put in a 107 kit.
He knows his chit.

 

More likely he and the OL are a LOT closer to 390lb than the scooter
Point being was that regardless of the bikes weight they all need dialing-in in some form or another; be it power, suspension, stereo or bling.

I think that there are a lot of people who do not realize that a cam has a direct effect on compression ratio and that it has nothing to do with the lift of the cam. Most people relate compression ratio to whatever the factory or the piston manufacturers state, static/mechanical/swept.

 

come on guys - winter is still a couple months away - ride while you still can!

 

When picking out a cam, seems to me that 90% of riders could choose 1 of 3 grinds. With the biggest questions being.....off idle to 3500, passing power and do you carry a passenger, if so what % of the time?

Most other cam just overlap.......that is all.

BTW......I weight 190lb.

 

Might help to know the yr and model of your particular bike and what kind of riding you intend to do.

 

JTMetal you don't seem to advance this any..several people have given some simple yet decent explanations of cam function and some suggestions yet your responses seem like someone who talks to hear their self talk.

We don't know what sort of bike you have nor what mods have been done to if any. It is obvious you understand the need to have this info as you have mentioned "Supporting Mods"

You state that you feel most people would pick a cam based off of goals, off idle to 3500, passing power, riding two up. They all seem like the same thing to me, or pretty darn close.. Passing is done from 2500-3500.. if my OL is on the back she's giving me shots to the kidney if I exceed 3500 or so. I'd agree that you could probably break down cams into three groups... but three groups per supporting mods and their are maybe 3 levels of supporting mods.
IMO 3 cam picks are more in line with:
1> off idle to 4000rpm (the guy who rides his bagger in line with what they were designed for. The ones that are posting in the 100K miles with no problem threads.
2> 2250-5500rpm.. for those who tend to ride a gear lower to keep the motor in a happy spot and twist on it regularly. The OL is on back occasionally.
3> 2750-6000rpm.. you don't care about going cross country as long as you can do a weekend trip to search out a good new bar... only one on the back is the Barfly and she knows to hold on, it's not her first ride.

SUPPORTING MODS If you have a completely stock bike with a stage I type mods then your optimal cam is going to be different to someone who has a full exhaust, high flow intake a good tuner and willing to do some supporting Headwork and will get it professionally tuned.

SO JTMETAL where do you and your bike reside?


(jeez I need to go to work)

 

I agree th 57h works well but it woks well with a little higher comp too. My twin cooled 103 with 10.1 works and I understand with a gasket change it should work even better or better yet SE high flow heads the 57 is right in line?