cam duration and installation settings
12-05-2006, 11:00 AM
Post: #4
 
What Wouter is referring to is a degree wheel. Type it into google and print what you find onto a piece of paper.

[Image: AEU86 AE86 -  ]

Basically what you do is mount the degree wheel someway onto your crank. Set the engine at TDC and rotate the degree wheel so an indicator (make one yourself..use a bolt or something) points at zero degrees. Then you start rotating the crank an at the same time measuring the amount of lift at the cyl#1 valves..You do this with some stepsize..preferably individual degrees.
What you end up with is a graph of degrees at crank VS lift. Duration is the number of degrees between opening of a valve and closing of that same valve.

Basically..its not that easy to measure. You need at least to fab up a degree wheel and also some kind of structure to mount a micrometer on top of the valvestem.

A wheel to steer the front of the car
A pedal to steer the rear
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Messages In This Thread
[] - wouter86 - 12-04-2006, 11:31 PM
[] - alimonos - 12-05-2006, 12:52 AM
[] - NoHachi - 12-05-2006 11:00 AM
[] - alimonos - 12-05-2006, 11:59 AM
[] - NoHachi - 12-05-2006, 12:47 PM

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