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What should my vacume ( InHG) be reading?

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Old 02-10-05 | 05:46 PM
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spekdah's Avatar
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What should my vacume ( InHG) be reading?

At the moment my autometer boost gauge reads between 20-19 Inhg in idle, is that good? what is normal?
Old 02-10-05 | 05:49 PM
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if it's around 8-700 rpm wise i think it's pretty good
Old 02-10-05 | 05:51 PM
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That's DAMN good. That's right where a very healthy engine should be at.

Dale
Old 02-10-05 | 05:52 PM
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my idle is 700 - 1000rpm
I dont know if its been ported but I'm led to believe its stock
Old 02-10-05 | 06:28 PM
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BTW it had 3mm seals
Old 02-10-05 | 06:32 PM
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Depends on your portinng, and your tune... but yes that's healthy, especially if the boost gauge doesn't waver or flutter, as the Apex seals go by...
Old 02-10-05 | 06:51 PM
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Here ya go. Numbers from many uses some time ago.

https://www.rx7club.com/showthread.p...ghlight=Vacuum
Old 02-10-05 | 09:25 PM
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Mine actually does waver and flutter a bit but it goes away after a while, or so it seems
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