HarleyTechTalk

For 2012 Sportster. Search didn't find anything. Thanks.

Thank You Brian. Was hoping to find the overlap.

Your welcome.

Quote from: Deye76 on January 18, 2024, 10:08:06 AMThank You Brian. Was hoping to find the overlap.

Overlap is the intake valve open (IVO) plus the exhaust valve close (EVC) point.

Note that the Andrews information on the stock "W" cams differs from the HD information:



Likewise, their information that D and W cams have the same specs is in error.

Here you go. 04 & later.

25740-05 Pro Sportster High Output 04 - Later
.575"/.575" lift.  260/266 duration In: 28 - 52  Ex: 57 - 29 degrees  TDC Lift .228 in. .221 ex.

25197-04 Performance 04 - Later
.551"/.551" lift. 249/249 duration In: 25 - 44  Ex: 59 - 10  TDC Lift .197 in. .122 ex.

92 - 99 need to change pinion gear.
John