Cams
R/
'Chop
I'll get it sorted out to be rideable.
Have dyno tune scheduled in about just over two weeks.
If anyone has a map they could share for the 6-6 w+4*/96"/stock heads, Love to see it. Doesn't matter what format, SERT/SEPST/TTS as I can copy table values. Would really like to ride this baby while waiting for dyno.
You are gonna love it SC!
I ordered my gasket kit ... also ordered a S&S crankcase breather valve that goes outboard (I believe) of the oil pump on the end of the crankshaft ... supposed to significantly reduce the air pressure that forces oil into the head breathers ... and into the intake ....
Decided to hold off on ordering the special tools ... saw a video where a guy used his oven and freezer to 'size' the cams, bearings and cam plate to obviate the necessity of the hydraulic press ... I'm trying to conceptualize how to de-tension the cam chain tensioners ... I'll think of something I suppose ....
Now ... get crackin' and finish up your cam job ... give us (me) some inspiration ....
R/
'Chop
""First off the breather only lets the engine breath one direction, this was fine from Flat Head days to EVO days but the Twin Cam motor is an internal breathing motor. This means the TC breaths from the crank case to the cam chest and then up to the rocker boxes when the piston is on the down stroke, (very little air escapes the engine through the two small holes in the head breather bolts) as the piston goes up the bore the air is pulled out of the top end into the cam chest and through the pinion bearing into the crank case again. During the up stroke of the piston and air traveling into the crank case there is a pull on the oil in the top end that assist in the return of that said oil into the cam chest for removal. If you install the S&S breather it only allows the air to pass through the bearing from the crank case to the cam chest one way....now as the piston goes up the bore the breather stops the air from cycling back through assisting in oil drain from the top and causing a vacuum in the crank case which you DON'T need with this Twin Cam breathing design. Now the oil has to return by gravity alone which slows the return process so oil can be actually filling the rocker boxes. All the oil is directed into the cam chest now in the TC not the Crank case. EVO's and earlier Harley's the oil from the top end was directed into the crank case and their breathers where designed to make that vacuum in the crank case to assist in oil return from the top end. (there are other reasons for crank case vacuum too but thats another topic)
Bottom line in my opinion the S&S breather is just another way to get you to shoot the lock off your wallet....it's not needed and it's a waist of time and money. It doesn't help in scavenging oil out of the cam chest back to the oil tank and that is the ONLY way to prevent oil carry over....get the oil back to the tank.""
It runs like crap though. Lots of sputtering in 1st and 2nd gear. I have a video that is uploading now. Will post shortly.
I'm not 100% sure I got everything timed correctly. I may be pulling it apart again.

I'm also not 100% sure on the map that fuelmoto sent me. Of course there is no comments on the map other than the fuelmoto stamp.
The Best of Harley-Davidson for Lifelong Riders



