Idle Characterists of 0" of Vacuum

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Sep 3, 2009 | 10:01 PM

ls1290

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From: Colorado

Idle Characterists of 0" of Vacuum

Wondering about what the title says.....

Sep 3, 2009 | 10:12 PM

gametech

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From: Stockbridge GA

Quote:

Originally Posted by ls1290

Wondering about what the title says.....

They rattle a lot and require diesel fuel. Some have no rattle, but require JET A, very similar to kerosene. What is your question.

Sep 3, 2009 | 10:19 PM

ls1290

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From: Colorado

Quote:

Originally Posted by gametech

They rattle a lot and require diesel fuel. Some have no rattle, but require JET A, very similar to kerosene. What is your question.

Did you read the title.....

Sep 4, 2009 | 01:00 AM

DeltaT

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Isn't that just ambient air, like maybe a motor that is shut off?

Jim

Sep 4, 2009 | 01:09 AM

SilverSS

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From: North Pole

Probably would be lumpy as hell but I doubt the motor could run on its own? Why do you ask?

Sep 4, 2009 | 06:20 AM

engineermike

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If it truly had 0" of vacuum at idle, then cracking the throttle open would make no difference at all.

Sep 4, 2009 | 05:06 PM

DeltaT

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Right, it's a motor that isn't drawing any air, or its idle speed is also its WOT speed which is unusual to say the least.

Jim

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Sep 4, 2009 | 06:42 PM

67Firebird455

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From: Visalia, California

It wouldn't "idle".

Sep 4, 2009 | 06:59 PM

#10

ayousef

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ok so no restriction from a throttlebody, and something else controlling the engine speed electronically lol.

Sep 4, 2009 | 07:20 PM

#11

KILLER-LS1

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From: Orange County, CA

no i think he means a supercharger putting out enough boost at idle to make 0 psi instead of vaccuum like a turbo or smaller supercharger would have at idle.

Sep 4, 2009 | 07:45 PM

#12

engineermike

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Quote:

Originally Posted by KILLER-LS1

no i think he means a supercharger putting out enough boost at idle to make 0 psi instead of vaccuum like a turbo or smaller supercharger would have at idle.

No, because if 0 psi got into the intake plenum, it wouldn't be at idle any more.