Well it's about time for my build to begin. I have a 2008 Street Glide with a stock airbox running a K&N filter and Vance and Hines 4.5" oval exhaust. I have a DynaJet Power Vision tuner that has my bike running good with the current set up.

I am planning to put in an S&S 107 Big Bore Kit. I plan to keep the stock heads. I want down low grunt and am not overly worried about squeezing out all possible high rpm horsepower. I called S&S tech and told them what I had in mind and asked for a suggestion on the appropriate Cam for my build. The tech guy suggested the MR103 easy start cam. It sound's like a good match for my riding style.

Any confirmations on this or other suggestions would be appreciated. I talk to my mechanic this coming week about ordering the parts.

 

 

Hey Bernie, my bike is at my Mechanics now, getting the S&S 107 Big Bore Kit and MR103 cams installed. It should be done by Wednesday. I will post on how it turns out. I have a Dynajet PowerVision Tuner. They sent me a base tune for that particular build, so it should be fairly drivable when I pick it up. Will probably need to take it to a dyno shop to get it tuned in properly.

 

this is an old post. Are you happy with the setup?

 

Yes, I am very happy with the set up. My S&S upgrade is in it's 6th year and has been a flawless engine. My gas mileage actually increased after the Big Bore kit and new cams were installed. I went from 38 MPG to 42. Never saw that coming. I had it tuned for torque and not peak horsepower. I love the set up. Couldn't be happier.

 

getting heads done now and jugs punched out as well. My builder has me leaning towards a 585.
Says it'll be set for tq even with this cam

 

just so you know, the S&S 585 is a mid range top end type cam,,,,it will put up good numbers but they will be higher in the rpm range,,,,,not neccessarily the best choice for a bagger.
m

 

that's what I thought too, he's telling me out of the gate my torque will be perfect, but hp will be sacrifice on the top end.

 

What CR?

 

10.2:1