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EGR only in rear rotor?

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Old Aug 6, 2008 | 05:41 PM
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EGR only in rear rotor?

Hi,
just confirm me if the EGR does only work the rear rotor, wich is " half housework " done for me : they do it fully or they don't, just find that strange...

Thanks.
Matthieu
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Old Aug 6, 2008 | 06:13 PM
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No. It feeds exhaust gas to both primary runners thru a internal path shown in the attached jpg.
Attached Thumbnails EGR only in rear rotor?-egrtwo.jpg  
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Old Aug 6, 2008 | 06:18 PM
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Along these liness, i have heard a BB in the right hose will disable the EGR system, is this true?
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Old Aug 6, 2008 | 06:23 PM
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Just remove it's vacuum line should do it. Or block it's vacuum line with??? whatever. Or remove the EGR and put a flat piece of sheet metal b/t the EGR and the manifold should do it. Gaskets on both sides.
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Old Aug 6, 2008 | 07:13 PM
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Yeah, i want to be able ot reenable it though when i have it inspected, so if there is a way to just disable it temporaily then that is what i want. So i assume that the hose that goes to the valve on the top of the engine is the one i need to remove/block off?

Also, does nyone know what kind of HP gain disabling the EGR gives you?
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Old Aug 6, 2008 | 11:00 PM
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basically none for horsepower gain.
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Old Aug 7, 2008 | 11:39 AM
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Originally Posted by Texas_Ace
Yeah, i want to be able ot reenable it though when i have it inspected, so if there is a way to just disable it temporaily then that is what i want. So i assume that the hose that goes to the valve on the top of the engine is the one i need to remove/block off?

Also, does nyone know what kind of HP gain disabling the EGR gives you?
Yes. Block the vacuum line that goes to the EGR. Not the EGR nipple.
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Old Aug 7, 2008 | 12:56 PM
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From: https://www2.mazda.com/en/100th/
Originally Posted by Texas_Ace
Yeah, i want to be able ot reenable it though when i have it inspected, so if there is a way to just disable it temporaily then that is what i want. So i assume that the hose that goes to the valve on the top of the engine is the one i need to remove/block off?

Also, does nyone know what kind of HP gain disabling the EGR gives you?
just due to the nature of the rotary engine there is a lot of exhaust gas in the engine anyways at idle, the egr valve basically doesnt do anything.

hp gain would be 0.
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