Valve overlap

N/A tech, Cold Air Intakes, Spark Plugs/wires, Cat backs, Exhaust...etc

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tafisama
Posts: 4
Joined: Sat Aug 11, 2012 11:35 am

Valve overlap

Post by tafisama »

Hie there I am new to the Forum and I have a question,does anyone know the Valve overlap for a Nubira 1.6L.WHEN DOES THE INLET VALVE OPEN AND CLOSE.How many degrees BTDC and ABDC.

THANKS
ls400x
Posts: 42
Joined: Sun Jul 15, 2012 11:46 am

Re: Valve overlap

Post by ls400x »

Google image search "degree wheel", print, glue on to a disc, grab your dial indicator and some graph paper and you're good to go 8)
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PrecisionBoost
Super Moderator
Posts: 4437
Joined: Thu Jun 19, 2003 5:59 am
Location: Edmonton, Alberta, Canada

Re: Valve overlap

Post by PrecisionBoost »

It use to be in the tech specs but the images were not transfered over during server changes.

May I ask why you are looking for valve timing specifications ?
2010 BMW 335D
1994 Opel Calibra 4X4 turbo ( C20LET 2.0L Turbo )
2002 Daewoo lanos
tafisama
Posts: 4
Joined: Sat Aug 11, 2012 11:35 am

Re: Valve overlap

Post by tafisama »

G`day,thanks for your reply.The reason is I want to know at what position in relation to TDC and BDC the valves open and close.From what I have seen the inlet valves on my 1.6 engine are taking too long to close resulting in the cylinders compressing into the intake plenium.The exhaust ones seem to be okay,I have no issues with them.If you have the information you would have helped.I tried to get the LSA value but was not successful either.

Thanks
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