SR20 Volumetric Efficiency

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Spoolin4days
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What's the Volumetric Efficiency on a Blacktop? I need to do some compressor map research for my boys' S14.


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Spoolin4days
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Found this for all those inerested...http://www.sr20forum.com/turbo....html

Q45tech
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Simple calibrate the MAF to grams per second on a flow bench, then divide by 4 cylinders and rpm..................how many grams flow into cylinder per revolution vs displacement = VE.

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Spoolin4days
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Q45tech wrote:Simple calibrate the MAF to grams per second on a flow bench, then divide by 4 cylinders and rpm..................how many grams flow into cylinder per revolution vs displacement = VE.
I wish I had a flow bench to test this on but- Does that calculate VE, based on the MAF? How is that accurate- like the MAF could be from a 300 ZX. VE won't change from that????

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Spoolin4days
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OK I did some research and that makes more sense now, I see the turbo changes a lot of things vs NA so I have other considerations to look into. Thanks for your response Q45tech.


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