Thread: 20V + 16VE pistons CR

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2009-11-04 14:57:19

#41

Andreas Miko Online/offline status of Andreas Miko is unknown

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I have a set of N1 factory pistons that give about .5 compression less than SR16VE factory pistons stock.

I had the up for sale but I might keep them for my 20V motor in my car.

Raceworx the factory piston is not coated on the top.

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2009-11-05 17:14:49

#42

Raceworx

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cheers andreas.. thanks for the info.. i took mine out but i couldnt tell they were the same colour on top as the coating on the sides..

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2009-11-11 10:15:07

#43

src

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So my final advice to all of you guys. Ask your engine shop to measure each step in engine assembly process to know your own Compression Ratio!

Remember, each head, each engine, each tuned part is unique!

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2009-11-11 11:06:32

#44

src

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Some photos...

Stock 20V combustion chamber

My modified 20V combustion chamber

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If you tired to find some JDM parts, ask me.
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2010-11-08 20:36:05

#45

blo0d

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Originally Posted by src

Ok, the assembly is on its way...

The piston-to-deck clearance is near 0,05mm so it gives me -0,29cc from combustion chamber volume. The head shaved 0,11mm so it gives me -0,64cc chamber volume. My final Compression Ratio will raise from 11,7-11,8 to 11,9-12,01 between the cylinders. I'm happy to see that! )

So my final advice to all of you guys. Ask your engine shop to measure each step in engine assembly process to know your own Compression Ratio!

Remember, each head, each engine, each tuned part is unique!

hey did you measure the compressed thickness of the metal headgasket youre using? also you did say metal vet headgasket correct?

also have you done a compression test on the cylinders warm?

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