winter cam project

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Nov 12, 2010 | 07:16 PM

#11

dawg

Seasoned HDF Member

Joined: Jun 2006

Posts: 28,520

Likes: 3,953

From: Vermont

Quote:

Originally Posted by drspencer

I need to change the tank on my 07 FXSTC. Could you tell me more about the crossover & quick connect?
Thanks

John Wadsworth (Herko) sells a quick connect coupling that goes in the fuel line on the front of the tank and you can pull the coupling apart and it is a ball valve that won't leak. Neat and clean. He sells them on ebay. HERE is the link

Nov 12, 2010 | 09:48 PM

#12

mja52403

Cruiser

Joined: Jul 2008

Posts: 234

Likes: 1

From: La Crosse, WI

I'm planning on doing my cams later winter/early spring. I just received my half price, barely used 255's this week, so just a few accessories and tools, and I'll be set. As for the write-ups and installation guides, I have collected quite a few.

http://fuelmotousa.com/cams.htm

https://www.hdforums.com/forum/touri...-write-up.html

https://www.hdforums.com/forum/touri...-pictures.html

https://www.hdforums.com/forum/touri...ge-report.html

http://www.harleyhog.co.uk/camguidepage1.htm

http://www.nightrider.com/biketech/hdtccaminstall00.htm

http://www.sscycle.com/uploads/instr...drive_cams.pdf

One other very useful guide is the service manual. It provides all the necessary torque requirements for the fasteners plus it illustrates what you need to do.

I took the advice of a few on this forum and I saved the cost associated with adjustable pushrods and I will be going through the rockers. I know it will take longer, but I'm in no hurry. Right now, if I can find the tools from some buddies, I can easily do my cams for under $200....helps when you find a set on ebay, barely used, with free shipping for only $120.

Really looking forward to doing this project. I was tempted to do it still this fall when we had 65 degrees this week, but tonight there is a chance of snow and the weather looks like it's going to stay cold now, so it will have to wait.

Hope the links help and Good Luck!

Nov 13, 2010 | 12:40 AM

#13

Mike

Ultimate HDF Member

Joined: Jun 2009

Posts: 6,786

Likes: 40

From: Centralia, Wa

Quote:

Originally Posted by drspencer

What's the advantage to using SE 1.725 rockers? How are they different from stock?
Thanks

They're a slightly higher ratio rocker. Rockers aren't 1:1. If they were, the valve would follow the cam lobe exactly... same total lift, same opening and closing rate, etc. By changing the ratio of the rockers (stock twin cam rockers are 1.625), you add more lift, which opens the valves more. And more importantly, the valves open and close much faster, which adds to the time they're open, making them work more efficiently.

Basically they add a little more lift to the cams I'm running. A .510 lift cam generally works pretty well in a 96 motor. The 103 can handle a little more lift, so the higher ratio rockers bring the effective lift of a .510 cam up to about .540.

But the more complex workings of the cam also are in play. If you compare two cams of equal duration, but one with more lift on the lobe and stock rockers, and the second with less lobe lift but higher ratio rockers to equal the lift of the first, the milder lift cam with higher lift rockers will provide more performance (as long as the cam is not too large to begin with.) And that's due to the increased efficiencies of the faster valves. It's not a dramatic gain, but little bits here and there add up.

Last edited by Mike; Nov 13, 2010 at 12:53 AM.