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What is this? Do I need it? Can I remove it?

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Old Mar 19, 2012 | 01:06 AM
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Default What is this? Do I need it? Can I remove it?

It appears to be part of the engine vacuum system but I don't know if I can do without it.

Thanks.

Marc

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Old Mar 19, 2012 | 01:19 AM
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Pretty sure you need it. I've read that it will cause power issues at higher r.p.m.'s if removed.
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Old Mar 19, 2012 | 01:41 AM
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You need it for vacuum reserve to operate the resonance flap.
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Old Mar 19, 2012 | 01:42 AM
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Originally Posted by rsscotty
You need it for vacuum reserve to operate the resonance flap.
....and what if I don't have a resonance flap? Can I safely remove it?

Thanks

Marc
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Old Mar 19, 2012 | 02:27 AM
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Originally Posted by Marc Shaw
....and what if I don't have a resonance flap? Can I safely remove it?

Thanks

Marc
If you are not using an OEM intake manifold, you don't need it.

Its unnecessary for carburetors and ITB's with stacks.
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Old Mar 19, 2012 | 02:38 AM
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So the small electrical vacuum valve can go too?

Marc
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Old Mar 19, 2012 | 03:11 AM
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Where does that thing live, anyway?
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Old Mar 19, 2012 | 03:22 AM
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Originally Posted by Marc Shaw
So the small electrical vacuum valve can go too?

Marc
Yep, as long as you are using a different type of intake system.
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Old Mar 19, 2012 | 07:37 AM
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Out of curiosity, what manifold are you running?
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Old Mar 19, 2012 | 10:33 AM
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Many thanks, Steve.

Marc
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Old Mar 19, 2012 | 10:34 AM
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Originally Posted by B. Elliott
Out of curiosity, what manifold are you running?
We'll see.

Marc
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Old Mar 19, 2012 | 10:40 AM
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Originally Posted by Babalouie
Where does that thing live, anyway?
Usually bolted behind the square air filter box.

Marc
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Old Mar 19, 2012 | 11:22 AM
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I wonder if my car still has one of these on there. It has an EvoMS cone intake system in place of the stock airbox.
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Old Mar 19, 2012 | 12:09 PM
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Usually zip tied somewhere on passenger side of engine when other intake systems added...unless the PO decided it was unnecessary since it was attached to old airbox..he was wrong..
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Old Mar 19, 2012 | 12:11 PM
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Well I have a spare for some reason if anyone needs one.

Marc
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