# Lobe centerline

**URL:** <https://forums.speedlife.net/t/lobe-centerline/32550>\
**Category:** NYSpeed Automotive\
**Created:** [July 18, 2007, 7:31am UTC](https://forums.speedlife.net/t/lobe-centerline/32550 "2007-07-18T07:31:16Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Shrek](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/shrek/32/7364_2.png) [@Shrek](https://forums.speedlife.net/u/Shrek)\
**Post date:** [July 18, 2007, 7:31am UTC](https://forums.speedlife.net/t/lobe-centerline/32550/1 "2007-07-18T07:31:16Z")

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Building a B18C1 motor. I have determined TDC using a degree wheel and a piston stop. I am trying to find out where the cam lobe centerline should be in relation to the crank when at TDC. I am using CTR cams but can’t find a cam card for them. All I have been able to find is this (below). I know when the TDC marks are lined up on the cams and Im at TDC but how can I be sure? I want to check true position of the centerline, but with out knowing what it is all I will have is a number.

[FONT=Arial] **Lift**  **Duration**  **Lift**  **Duration**   
**HONDA OEM Civic Type R**   
**[COLOR=royalblue]Intake**  **11.5mm lift,**  **243 @ 1mm duration** [/COLOR]  
[COLOR=darkorange] **Exhaust**  **10.5 mm lift,**  **235 @ 1mm duration** [/COLOR][/FONT]  
 ![http://i197.photobucket.com/albums/aa271/shrekb18/timing_tdcsetting.jpg?t=1184768288](http://i197.photobucket.com/albums/aa271/shrekb18/timing_tdcsetting.jpg?t=1184768288)