Resonator removal
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Joined: Dec 2000
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Hi Andy,
It's very simple if you know how...
First jack up your car and remove the right front wheel.
Then remove the lower inner wheel cover/mudguard (that black thing). Be careful: there are different types of screws and bits. Try to remember which one fits which hole (or look on the lefthandside for comparison).
The screws are easy. The other bits have plugs in them. Just push the inner part and the pin will release them.
The mud gueard is also attached to the underside of the frontspoiler. This one is a bit tricky but just keep pulling and it will come off.
Then open your bonnet. Unscrew the airduct just behind the headlight on the left (as you stand in front of it).
Now you can see a hole in the inner wheel guard looking directly into the resonator.
See those two screws just in front of the air filter box? Unscrew them. The top one is attached to the resonator itself. The lower one is attached to a bracket which needs to be loosened and pushed out of the way to have the resonator released.
Whe're not there yet.
Get yourself under the car and look up. You'll see the resonator (It's a big mother black thing). It's still attached with one screw (only visible from underneath). Release it, push the bracket out of the way (this is helped by unscrewing the nut on the outside).
And hey presto, the resonator falls on your face!
It took me only 30 minutes. Wel 25 actually, but I put the mud guard back on the wrong way
...antoher tip: in order to free the lower mud guard, unscrew some of the screws of the upper mudguard as well. It helps to manouvre the lower mudguard out of the way.
Good luck!
btw The airfilter will get cooler air from the inner guard. I think it's helpfull when you close the hole between the engine bay and inner guard to keep the hot air separated.
Results: more whooshing. Power? My estimate: 30 BHP!! :lol
(Well, maybe in your dreams). It does seem to have an effect on throttle response.
Cheers, Peter
It's very simple if you know how...
First jack up your car and remove the right front wheel.
Then remove the lower inner wheel cover/mudguard (that black thing). Be careful: there are different types of screws and bits. Try to remember which one fits which hole (or look on the lefthandside for comparison).
The screws are easy. The other bits have plugs in them. Just push the inner part and the pin will release them.
The mud gueard is also attached to the underside of the frontspoiler. This one is a bit tricky but just keep pulling and it will come off.
Then open your bonnet. Unscrew the airduct just behind the headlight on the left (as you stand in front of it).
Now you can see a hole in the inner wheel guard looking directly into the resonator.
See those two screws just in front of the air filter box? Unscrew them. The top one is attached to the resonator itself. The lower one is attached to a bracket which needs to be loosened and pushed out of the way to have the resonator released.
Whe're not there yet.
Get yourself under the car and look up. You'll see the resonator (It's a big mother black thing). It's still attached with one screw (only visible from underneath). Release it, push the bracket out of the way (this is helped by unscrewing the nut on the outside).
And hey presto, the resonator falls on your face!
It took me only 30 minutes. Wel 25 actually, but I put the mud guard back on the wrong way
...antoher tip: in order to free the lower mud guard, unscrew some of the screws of the upper mudguard as well. It helps to manouvre the lower mudguard out of the way.Good luck!
btw The airfilter will get cooler air from the inner guard. I think it's helpfull when you close the hole between the engine bay and inner guard to keep the hot air separated.
Results: more whooshing. Power? My estimate: 30 BHP!! :lol
(Well, maybe in your dreams). It does seem to have an effect on throttle response.
Cheers, Peter
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From: Zurich, Switzerland
I'd not recommend doing this with the OE paper filter - upgrade to a decent aftermarket foam type.
And clean it regular - you'd be surprised at the amount of leaves, twigs and bugs that get sucked up (anything that fits through orange vent!)
Richard
And clean it regular - you'd be surprised at the amount of leaves, twigs and bugs that get sucked up (anything that fits through orange vent!)
Richard
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Joined: Jul 2000
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From: Lancashire
Well worth doing, however, I didn't jack the car up (and hence didn't take the front drivers side wheel off 
) still had plenty of space to get the resonator out.
Just my two-penneth
Andrew...
) still had plenty of space to get the resonator out.Just my two-penneth
Andrew...
Thanks guys!
No problem filter wise, as I'm making do with a RamPod inductor!!!
Although I have been told to be careful with this, as lot's of crap could end up in the engine bay, etc.
Has anyone had bad expereinces, or have you all followed Phill's sensible advice??
Thanks
Andy
No problem filter wise, as I'm making do with a RamPod inductor!!!
Although I have been told to be careful with this, as lot's of crap could end up in the engine bay, etc.
Has anyone had bad expereinces, or have you all followed Phill's sensible advice??
Thanks
Andy
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Joined: Jul 2001
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Hello,
Sorry to drag this one up again but what do you do with what appears to be a temp sensor testing the air in the inlet pipe just behind the headlight as i take it that this plastic pipe is no longer required after resonator removal.
Any help appreciated
Sam
Sorry to drag this one up again but what do you do with what appears to be a temp sensor testing the air in the inlet pipe just behind the headlight as i take it that this plastic pipe is no longer required after resonator removal.
Any help appreciated
Sam
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your comments would be appreciated.
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From: MY00,MY01,RX-8, Alfa 147 & Focus ST :-)
Sam
Don't know - don't remember seeing anything on mine when I took it off (MY00). What year is your car?
Andrew
The resonator acts to reduce the noise generated by the turbo / dump valve. There is also some benefit to removing it in reducing the distance that air has to travel to reach the air filter and engine. The theory being that if you remove the resonator, you have a more direct path for air drawn in from outside the car (working on the same principle as K&N 57i induction kits etc). I have to say that the actual benefits are limited, but it does sound great You will get more induction noise and hear the dump valve as it expels air. Personal choice really as to whether you want the noise.
I ran mine for about 4 months with no problems (as dowser says, it's worth fitting a good quality filter (I used a K&N panel filter, but the ITC one from Scoobysport will work just as well). I now have an HKS induction system fitted
As regards, blocking the hole left in the side of the engine bay, this will certainly reduce the risk of foreign objects being drawn into the engine bay. If you are experimenting, you could fix a flexible aluminium hose to the inside of the wing to direct air up from under the front spoiler onto the air filter. In all honesty, once you are on the move, the general movement of air through the engine bay will be little different in temperature to that drawn in from outside the car and directed up through the front wing.
Have a play around and see what suits you (sir)
Chris
[This message has been edited by Chris L (edited 15 March 2001).]
Don't know - don't remember seeing anything on mine when I took it off (MY00). What year is your car?
Andrew
The resonator acts to reduce the noise generated by the turbo / dump valve. There is also some benefit to removing it in reducing the distance that air has to travel to reach the air filter and engine. The theory being that if you remove the resonator, you have a more direct path for air drawn in from outside the car (working on the same principle as K&N 57i induction kits etc). I have to say that the actual benefits are limited, but it does sound great
You will get more induction noise and hear the dump valve as it expels air. Personal choice really as to whether you want the noise.I ran mine for about 4 months with no problems (as dowser says, it's worth fitting a good quality filter (I used a K&N panel filter, but the ITC one from Scoobysport will work just as well). I now have an HKS induction system fitted
As regards, blocking the hole left in the side of the engine bay, this will certainly reduce the risk of foreign objects being drawn into the engine bay. If you are experimenting, you could fix a flexible aluminium hose to the inside of the wing to direct air up from under the front spoiler onto the air filter. In all honesty, once you are on the move, the general movement of air through the engine bay will be little different in temperature to that drawn in from outside the car and directed up through the front wing.
Have a play around and see what suits you (sir)
Chris
[This message has been edited by Chris L (edited 15 March 2001).]
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Sam:
I hope you're not talking about the air flow mass meter? It's located in the inlet pipe between the filter and the engine... If you remove that your will go like crud, if at all unless you have a MoTec or LINK installed.
Mesh
I hope you're not talking about the air flow mass meter? It's located in the inlet pipe between the filter and the engine... If you remove that your will go like crud, if at all unless you have a MoTec or LINK installed.
Mesh
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From: London
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:<HR>Originally posted by Andrew O'Hara:
<B>Excuse my ignorance, but, what advantage is gained by removal of the air box resonator?[/quote]
MRT quote 2-3bhp gain at the wheels as well
Matt.
<B>Excuse my ignorance, but, what advantage is gained by removal of the air box resonator?[/quote]
MRT quote 2-3bhp gain at the wheels as well
Matt.
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Quote : "I hope you're not talking about the air flow mass meter? It's located in the inlet pipe between the filter and the engine... "
No, but i can see the part you are talking about. This is more the size of car phone charger you know the bit you stick in the lighter socket. It goes through a hole with a rubber grommet into the plastic housing that takes the air to the resonator in the wing.
Any ideas anyone?
[This message has been edited by samuel (edited 16 March 2001).]
No, but i can see the part you are talking about. This is more the size of car phone charger you know the bit you stick in the lighter socket. It goes through a hole with a rubber grommet into the plastic housing that takes the air to the resonator in the wing.
Any ideas anyone?
[This message has been edited by samuel (edited 16 March 2001).]
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