Vacuum reading - Page 2

05-12-2011 | 06:38 PM

#26

bumblebeerx8

Rear Mount GT35R

iTrader: (7)

Joined: Aug 2008

Posts: 976

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From: toledo,ohio

i run around 18.5-19 and i am turboed. I never checked prior. im 615 above sea level

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05-12-2011 | 10:58 PM

#27

05rx8mazda

B.I.G

iTrader: (4)

Joined: Aug 2007

Posts: 1,401

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From: AT---EIL

i am currently around 16.5-18.5 and its been that way since new motor.... but then again i am using a cheap prosport guage.

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03-29-2012 | 11:23 AM

#28

warren(silver-roxy-8)

no sleep til it spools

Joined: Jan 2009

Posts: 502

Likes: 1

From: Austin, Texas

Quote:

Originally Posted by Charles R. Hill

Factory spec be damned; most healthy Renesis engines will produce about 15-17 in./hg. at idle but equally important is that the vacuum gauge needle is steady and not bouncing around.

Charles, what would cause an unsteady gauge needle under vacuum?

P.S. Apologies about the revival of this thread

. Rather revive than recreate, am I right?

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03-29-2012 | 12:06 PM

#29

wcs

no agenda

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Joined: Feb 2005

Posts: 5,210

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From: Ontario

Quote:

Originally Posted by warren(silver-roxy-8)

Charles, what would cause an unsteady gauge needle under vacuum?

P.S. Apologies about the revival of this thread

. Rather revive than recreate, am I right?

I know this is directed at CRH,
But I would like to take a stab at it,

I'm going to go with the something like the vacuum potential for a given chamber or like vacuum differential between chambers.

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