Intake resonator delete - Good or bad?

[MR2Adam]

Is this just a resinator? Or is it something more important?

[shnazzle]

Yup. That's it.
It has a funky name but I forgot.

[MR2Adam]

Yup. That's it.
It has a funky name but I forgot.

So a resinator? Because someone said it prevents shock waves travelling through the intake causing turbulence in one of the cylinders.

[shnazzle]

Yup. That's it.
It has a funky name but I forgot.

So a resinator? Because someone said it prevents shock waves travelling through the intake causing turbulence in one of the cylinders.

Same difference.

[jonbill]

What's the difference between a resinator and a resonator?

One puts stuff in a mold, the other comes out of a mold.

Better punchlines are available.

[shnazzle]

What's the difference between a resinator and a resonator?

One puts stuff in a mold, the other comes out of a mold.

Better punchlines are available.

Hahah
It's far too early for that kind of humour Jon!

Anyway the reason I said "same difference" is because the sounds waves are essentially pressure waves. So it is indeed to stop a buffeting effect but in doing so the reverberation of the noise from the manifold is also reduced.
One document from Toyota will say it's for noise reduction, the other will say it's to reduce turbulence. Both are right

[MR2Adam]

What's the difference between a resinator and a resonator?

One puts stuff in a mold, the other comes out of a mold.

Better punchlines are available.

Hahah
It's far too early for that kind of humour Jon!

Anyway the reason I said "same difference" is because the sounds waves are essentially pressure waves. So it is indeed to stop a buffeting effect but in doing so the reverberation of the noise from the manifold is also reduced.
One document from Toyota will say it's for noise reduction, the other will say it's to reduce turbulence. Both are right

That's a fantastic explanation, thanks! And going along with that, would removing the resonator be an issue/harmful? Or are we just going get more noise?

[jonbill]

I have a vague memory of a thread a year or two ago with someone removing it and the car not running well without it.

[shnazzle]

Remove just that or the whole stock intake?

[shnazzle]

Last time I read up on it I was shocked about how much it did. It's not an accidental design. It's something very specifically designed for that intake and engine.

My googling is failing me today but basically, from memory;
- sound resonator
- throttle response
- reduce turbulence from the pulses generated by the cylinders and intake valves.

Things you may experience on removal (and leaving the rest of the intake as-is) :
- little more droning noise
- delay on throttle close and open
- undetectable issues with fueling as it may affect the amount of turbulence over the MAF. You likely won't notice but the ECU will the calculating its little head off based on the fluctuating MAF readings. The MAF is a very very fast-reading sensor.

[MR2Adam]

Last time I read up on it I was shocked about how much it did. It's not an accidental design. It's something very specifically designed for that intake and engine.

My googling is failing me today but basically, from memory;
- sound resonator
- throttle response
- reduce turbulence from the pulses generated by the cylinders and intake valves.

Things you may experience on removal (and leaving the rest of the intake as-is) :
- little more droning noise
- delay on throttle close and open
- undetectable issues with fueling as it may affect the amount of turbulence over the MAF. You likely won't notice but the ECU will the calculating its little head off based on the fluctuating MAF readings. The MAF is a very very fast-reading sensor.

Well, that's got me. Think what ever I replace the hose with I'm going to make sure that it has the resonator. I really appreciate your advice!  :notworthy:

[Call the midlife!]

If it's just to look better than your current one then consider a newer one from one of the recyclers? They're the same piece of kit across the years but a newer one might look tidier.


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[shnazzle]

Helmholtz resonator!

Found it

Happy reading

For others interested; if you're worried about the throttle response issues when putting on a cone filter behind the battery:
- noise is what you're after most likely, so that point is moot.
- the more direct access to atmospheric pressure negates the throttle issues.
- the MAF issues we're well aware of and remain. Obvious flat-spots and bad fueling until you get a piggyback (at least) to recalibrate/compensate the MAF voltage across the range. A MAF can't adjust. Only the fueling can.
A simple 10% increase in MAF voltage across the board helped a lot. Further tinkering (less increase the higher the rpm) stabilised my fueling. I thibk I go 12% at idle, to 11,to 10 then 9,rheb back to 10 at wot high load.

Much easier to just stay with stock intake and a fresh disposible filter but Where's the fun in that.

[Petrus]

Helmholtz resonator!

Found it

Happy reading

For others interested; if you're worried about the throttle response issues when putting on a cone filter behind the battery:
- noise is what you're after most likely, so that point is moot.
- the more direct access to atmospheric pressure negates the throttle issues.
- the MAF issues we're well aware of and remain. Obvious flat-spots and bad fueling until you get a piggyback (at least) to recalibrate/compensate the MAF voltage across the range. A MAF can't adjust. Only the fueling can.
A simple 10% increase in MAF voltage across the board helped a lot. Further tinkering (less increase the higher the rpm) stabilised my fueling. I thibk I go 12% at idle, to 11,to 10 then 9,rheb back to 10 at wot high load.

Much easier to just stay with stock intake and a fresh disposible filter but Where's the fun in that.

Lóve your answer.
Basically tinker as much as you need to but improving on the OEM deveolopment is basically a lost battle as whatever you win sómewhere, you will loose more elsewhere.

[shnazzle]

Helmholtz resonator!

Found it

Happy reading

For others interested; if you're worried about the throttle response issues when putting on a cone filter behind the battery:
- noise is what you're after most likely, so that point is moot.
- the more direct access to atmospheric pressure negates the throttle issues.
- the MAF issues we're well aware of and remain. Obvious flat-spots and bad fueling until you get a piggyback (at least) to recalibrate/compensate the MAF voltage across the range. A MAF can't adjust. Only the fueling can.
A simple 10% increase in MAF voltage across the board helped a lot. Further tinkering (less increase the higher the rpm) stabilised my fueling. I thibk I go 12% at idle, to 11,to 10 then 9,rheb back to 10 at wot high load.

Much easier to just stay with stock intake and a fresh disposible filter but Where's the fun in that.

Lóve your answer.
Basically tinker as much as you need to but improving on the OEM deveolopment is basically a lost battle as whatever you win sómewhere, you will loose more elsewhere.

Correct!
Stock knows best
You can pretty much guarantee that you're sacrificing one thing for something you want with any mod. But that's the name of the game

[Ardent]

Which leaves me as the odd one out. As I'm happy with the vanilla setup.
No tinkering planned.

[shnazzle]

Which leaves me as the odd one out. As I'm happy with the vanilla setup.
No tinkering planned.

Good man

[frogger]

I have a modded setup with a filter behind the battery (venom enclosed induction filter with a short tube towards the side intake) - and it's perfect without any playing around because I used a small portion of the *stock* intake pipe with the *stock* MAF mounting to connect between the filter and the throttle body.
Cheap as chips too!

[Call the midlife!]

Which leaves me as the odd one out. As I'm happy with the vanilla setup.
No tinkering planned.

Good man

Vanilla??? I know you're pretty much "standard" but it's hardly vanilla, unless it's in crème brulée![emoji23]


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[Ardent]

Vanilla, in the sense of, as Mr T intended. Zero input from me to avoid c0cking  things up. 

[Call the midlife!]

Vanilla, in the sense of, as Mr T intended. Zero input from me to avoid c0cking  things up. 

Yup, like I said, standard including the bit that goes "whoosh" [emoji23]


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[Ardent]

 

[shnazzle]

Coincidentally when searching for something today I came across an old intake thread wherein Nigel (loadswine) syas that that blocked pipe on the PPE is indeed a Holmheltz resonator!
So in this case definitely not for ventilation and bypass valve doesn't even make sense