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Removing intake resonator

General Tech Talk

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Posts: 18
Joined: Sat Mar 29, 2008 5:14 pm
Location: Grafton

Removing intake resonator

Post by dmarsc10 »

G'day has anybody removed the intake resonator from the air filter of a 3.2l diesel Navara, or any other smallish diesel motor for that matter. Any difference in performance without it?
I will be installing a snorkel soon (maybe a custom??) and it would be sweet if i could do away with the resonator box and hook straight to the main air filter box.
Cheers.
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Location: Melbourne

Post by Struth »

I haven't done it on a small diesal, but on the Toyo 3Lt V6 it makes a noticeable difference to throttle response. Doesn't really give you heaps of grunt or anything but a worthwhile mod in my view.

Cheers
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DamTriton
God of Athiests
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Post by DamTriton »

They weren't put there by accident, and they wouldn't be there if they didn't do something.

If it works, don't fix it.
George Carlin, an American Comedian said; "Think of how stupid the average person is, and realise that half of them are stupider than that".
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Post by TheOtherLeft »

AFAIK resonators are put on to quieten down the intake noise at particular frequencies/RPM level, so is purely for cosmetic/aesthetic reasons. I have 2 on my suzuki and removed the bigger one when I installed snorkel. Other then a bit more intake noise I've not noted any real difference.
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Post by MightyMouse »

I asked the same question myself and was lucky enough to be able to direct it to a engineer who did some of the manifold/intake design on a couple of vehicles.

He indicated that these resonators ( Hemholz ? ) were indeed to damp specific resonances but somewhat to my surprise these often showed up as external noise and could effect driveby noise measurements - and therefore had to be damped.

I'm sure that the resonances would probably be heard internally as well but it didn't seem to be his major concern.

As for power / torque etc - no effect.
( usual disclaimers )

It seemed like a much better idea when I started it than it does now.
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Posts: 18
Joined: Sat Mar 29, 2008 5:14 pm
Location: Grafton

Post by dmarsc10 »

thanks for the replies. If it is only for the redustion of noise i think i will get rid of it when i install a snorkel. One less join to worry about leaking i reckon and a more direct path for air flow.
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