resonator? What to do with it...

[sex_&_TRD87]

I have a V6 and I'm very interested on getting some exhaust and an intake (when there really is an availability for them) but so far, I'm running low on cash at the moment and I'm not trying to go cheap here but I was wondering about the 'resonator'

I partially hear, on this forum, that the resonator absorbs the vibrations so it wont be so loud when we drive hard, is this correct?

If i take it out...is there any side effects? short term, long term? Will I gain any 'power' noise? lol

and HOW would i be able to take it out?

thanks a lot!

[jermyjerm]

the resonator should be left in place.you wont gain enough h.p. to make it worth the nasty sound.thats my opinion.replace the muffler to gain sound and a couple h.p.

[CamrySExxx]

i think you should leave your resonator. It will probably sound crappy and a little raspy without it. Removing your cat would probably be better than removing the resonator. But whats the point.

[itz4lanyo]

Originally Posted by jermyjerm

the resonator should be left in place.you wont gain enough h.p. to make it worth the nasty sound.thats my opinion.replace the muffler to gain sound and a couple h.p.

The muffler is a big part in dealing with the exhaust system. thats where brand name sometimes come in handy. The piping needs to be considerered too when getting an exhaust system. For some cars if you take out the reasonator, the affect of the deepness doesn't really change but you get louder. It all depends. the gen 6 camry has a resonator in the mid pipe right after the cat.

[Netforcer]

depends... if you remove your resonator and leave your mufflers stock... this will be considered a stage 1 mod (i think)... it will give you a throaty sounding exhaust like the TL-S... no side effects and minimal gains since mufflers are stock and still restrictive

[JustAnotherAsian]

first of all... which resonator are we talking about? the intake or exhaust? you can take out the intake resonator, but i'd leave the exhaust resonator in place for sure. even at that, the removal of the intake resonator does not do squat anyways. it just sounds a little bit throatier at mid-rpm.

[t0eknee]

Originally Posted by JustAnotherAsian

first of all... which resonator are we talking about? the intake or exhaust? you can take out the intake resonator, but i'd leave the exhaust resonator in place for sure. even at that, the removal of the intake resonator does not do squat anyways. it just sounds a little bit throatier at mid-rpm.

which is the resonator for the I4 intake? i wouldnt mind taking mines off for a little fun

[ToyotaToday]

removing resonators, mufflers, etc to gain hp is not worth it. If you do get any gain, it won't be noticeable... it will more be psychological because it will sound louder. If anything you might actually lose back pressure and hence lose some low end power.

[Mistabullet]

Originally Posted by ToyotaToday

If anything you might actually lose back pressure and hence lose some low end power.

How exactly would lose of back pressure = lose of power?

[jermyjerm]

the belief that back pressure actually makes any power is a myth.

[sex_&_TRD87]

well first i would thank all of you guys for the response and i apologize for the confusing cause i left out some informations

I mentioned that Im interested on intakes and exhaust and what i failed to mention was that at the moment, with the removal of the resonator, the intake, i was jux merely trying to have some fun and have a louder sound to the car rather than power gain. i think our v6 camry has a good amount of power, BUT that doesnt mean i wouldnt consider on getting exhaust n intakes, just so my car could breathe better

so with that said, if i take out the resonator, there wouldnt really be any down fall? Netforcer said no and others say yes....more opinions?

[ToyotaToday]

Originally Posted by jermyjerm

the belief that back pressure actually makes any power is a myth.

Myth? where did get that info from? Do your research. You need a certain amount of back pressure. I'm not saying the more backpressure the better, but you do need a certain amount of back pressure.

Have you ever noticed if your car is idling and then you open the oil cap, it runs a bit rough because the pressure is lost.

In any case, back to the original topic, it's not that easy to gain horse power just by removing a resonator, muffler, etc... Even if you were to gain, let's say 2 hp, you would lose some low-end torque for some high end torque gain. So what's the point.

[njerald]

Maximizing power with an exhaust sytem is done by having the maximum velocity of gases to scavenge the engine the most efficiently.

If the system is just piping, then too big a pipe will slow down the gases, too small a pipe will slow down the gases.

But the gas volume through the pipe changes with the rpm, so it isn't a simple or easy design.

The '07 mufflers have internal valving that are closed at idle and open as more volume (pressure increases), to maintain gas velocity.

[Mistabullet]

+10 for njerald^

That's exactly what I thought. I knew velocity plays in a role, but I guess some people mistake velocity for pressure.

As far as I know small piping = low end power since it is optimal for the gases @ low RPM and larger piping = high end power since it is optimal for gases at high RPM's

If backpressure was needed then why would the top fuel dragcars simply have a restriction free exhaust piping that is simply aimed up.

Also, the pressure contained by the oil cap is different from piston pressure which is what the exhaust would deal with.

Helpful site on back pressure myth: Exhaust Theory





In regards to the OP:

If anything, removing your resonator and replacing it with the same piping diameter as the rest of your system would be beneficial as far as performance goes. Not much, but it will be better then having the resonator messing up the momentum of the gases.

[jermyjerm]

Originally Posted by sex_&_TRD87

well first i would thank all of you guys for the response and i apologize for the confusing cause i left out some informations

I mentioned that Im interested on intakes and exhaust and what i failed to mention was that at the moment, with the removal of the resonator, the intake, i was jux merely trying to have some fun and have a louder sound to the car rather than power gain. i think our v6 camry has a good amount of power, BUT that doesnt mean i wouldnt consider on getting exhaust n intakes, just so my car could breathe better

so with that said, if i take out the resonator, there wouldnt really be any down fall? Netforcer said no and others say yes....more opinions?

Toyota says the new Camry V6 has more intake air volume than any other V6,so I wouldnt mess with the plumbing,Toyota spent millions getting that right.The high flow TRD filter you have is the best route in getting more sound and power.