new air feed

[ant]

oh dear! can of worms just opened!

it was closed a while back..............



From panel of experts on renaultsport site.......

'Acoustic Valve on Clio Trophy's Induction Cold Air Feed'

'Can someone with an intimate knowledge of the design and manafacture of the 182 please explain exactly why there is an electronically operated valve in one of the two air feeds to the air box? It is creating a lot of interest on certain forums and I'm sure there is a valid reason for it's presence but it would be useful to know what it is doing as removing it seems to improve pick-up and engine response without any obvious detrimental effects elsewhere.'

Allen Collen responds.... 'The indution noise will be different if you remove it - there could be some marginal improvement in performance but only if there was not enough air available when the butterfly was open. It is controled by the ECU and its objective was to reduce induction noise in line with an EU directive.'

 

[john182rs]

right got my viper thanks to dale172... had it on the car and can not find a way of getting the air filtewr pipe to the front grill like brian has done, also how do i get to remove the homo'ified acoustic valve?

 

[nelson182]

^^ first off, once you remone accoustic valve, you will have much more room to fit air feed. To remove the acoustic valve, you need to take wheel off, and then pull back the wheel arch lining. From there you will see the horn, Unscrew this and then the other bolts that attach the acoustic valve. (about a 5min job) Let me know once you have done this, as you can fit air feed after without needing to take wheel off"!

 

[john182rs]

Done that one now, next step.

(god i feel a right plick)

 

[Fred@BTM]

What does the acoustic valve do? :S

quiet the engine down at full chat

i say its a restriction, others don't

 

[Fred@BTM]

Allen Collen responds.... 'The indution noise will be different if you remove it - there could be some marginal improvement in performance but only if there was not enough air available when the butterfly was open. It is controled by the ECU and its objective was to reduce induction noise in line with an EU directive.'

its not controlled by the ecu at all!!!!!

 

[nelson182]

Done that one now, next step.

(god i feel a right plick)

Sorry mate, haven't been online much. Now you can fit your new air feed with the extra space you have made by removal of acoustic valve. See first page on this thread for my pics! :star: