best trigger disc pattern

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0martin0
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Re: best trigger disc pattern

Post by 0martin0 » Mon Nov 28, 2016 9:16 pm

Why i can see 611.44° of CAM 1 angle related to crank it make no sense (refer to first picture above) where should i position reference tooth edge to have something between 0-360?
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Karel
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Re: best trigger disc pattern

Post by Karel » Mon Nov 28, 2016 9:25 pm

no no, the working cycle on 4 stroked engine is 720°

ony every 2 full revolution you have one working cycle :-)
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0martin0
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Joined:Fri Jan 16, 2015 9:06 pm
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Re: best trigger disc pattern

Post by 0martin0 » Mon Nov 28, 2016 9:33 pm

So cam 1 angle will allways be in range of 360 to 720° ?
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0martin0
Posts:43
Joined:Fri Jan 16, 2015 9:06 pm
Location:czech republic

Re: best trigger disc pattern

Post by 0martin0 » Mon Nov 28, 2016 10:02 pm

And its even more interesting then that, because value in case on picture is actualy negative so -611.44° so it seems to me that range can be -720° to +720°
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0martin0
Posts:43
Joined:Fri Jan 16, 2015 9:06 pm
Location:czech republic

Re: best trigger disc pattern

Post by 0martin0 » Mon Nov 28, 2016 10:52 pm

Ok so i look thru logs and on subaru ej20 i found -836° on nissan sr20 i have -723° on some ford i have -677° and -825° on mx5, so it seems that values are allways negative and higher then 360. Ej20 and mx5 is wery interesting, because its offset cannot be compensated with VVT setting "cam1offset" because this value can be only in range from 0 to 800
Any ideas around this?
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