Brand new to this forum. The folks at HDforum recommended posting my questions here.
I need some advice on new cams and the new cam chain tensioner systems from HD and Andrews for an 04 Fat Boy (TC88, 95ci, 251 cams, SE lifters, heavy duty valve springs, adj push-rods, SE ICM).
My SE lifters seized and destroyed my cams. I am considering installing HD's new hydraulic cam chain tensioner kit (part no. 25284-08) -OR- the Andrews Hydraulic Roller Chain Conversion kit and new cams while we're in there. As for cams, I am considering Andrews' 54N or 55N grinds.
I spoke with an Andrews rep. He said Andrew's new roller chain cam tension conversion kit contains the 'exact' same parts that are now in all 2009 TC96 motors. He said if I order the corresponding HD cam parts, and oil pump for a '09 TC96, it is exactly the same as the Andrews conversion kit, and will work with the Andrews N-cams in my TC88. The only difference is that the "inner" cam bores on the 'N-series' cams are .875 to accomodate the TC88 motors. The outer bores in both the Andrews and the 2009 HD cam plate are the 'current' larger spec.
Can anyone confirm that the corresponding Harley cam parts and oil pump for a 2009 TC96 motor are the same as the Andrew's roller chain conversion kit?
Andrews said that HD's hydraulic cam chain tensioner kit (part no 25284-08) that was made to upgrade TC88 motors is really a 'hybrid' of the old and new HD cam systems. It has the smaller diameter .875 inner/outer cam bores for TC88s, a new cam plate, hydraulic shoes, roller chain and high-cap oil pump). By contrast, the cam plate in the Andrews kit for TC88s has the larger outer cam bores of a 2009 TC96 motor. The Andrews N-cams are designed accordingly...smaller inner bores...larger outer bore. The N-cams cannot be used with the HD 25284-08 kit for TC88s....this kit uses conventional cams with the smaller inner/outer bores.
To complicate matters further, my indy is telling me he doesn't think the oil passages in the current (07 and later) HD cam plate will mate with my '04 TC88. He is recommending the HD 25284-08 kit for my bike. Some others are recommending the HD 25284-08 kit as the smaller outer cam bore will allow more HD and aftermarket cam options for future mods. Right now I’m leaning toward the HD 25284-08 kit and Andrews corresponding cams.
With regards to cam grinds, Andrews recommended the 54N over the 55N for my motor. He said I'll get a little more high-end pull and less low-end pull from the 55N (2600-6200 RPM) vs. the 54N cam (2200-5600).
Is there any problem with either Andrews cam above for my bike?
Where can I get the best pricing on Andrew's cams? Zanotti??
Any and all advice much appreciated...