Notices

Airbox resonator

Thread Tools
 
Search this Thread
 
Old 05 February 2008, 08:52 PM
  #1  
jaypug
Scooby Regular
Thread Starter
iTrader: (4)
 
jaypug's Avatar
 
Join Date: Feb 2007
Location: Irnham,Grantham, Lincs
Posts: 1,115
Likes: 0
Received 0 Likes on 0 Posts
Default Airbox resonator

Is it worth getting rid of my airbox resonator on my RB5. Im running the standard airbox with a k&n panel filter.
Old 06 February 2008, 06:47 AM
  #2  
RBGUS
Scooby Regular
iTrader: (7)
 
RBGUS's Avatar
 
Join Date: May 2007
Location: Edinburgh
Posts: 521
Likes: 0
Received 0 Likes on 0 Posts
Default

I've removed mine before i went to andy f's for a remap
it gives you better/cooler. Andy's idea
Old 07 February 2008, 12:49 AM
  #3  
harvey
Former Sponsor
iTrader: (48)
 
harvey's Avatar
 
Join Date: Mar 2001
Location: Darlington
Posts: 10,419
Likes: 0
Received 1 Like on 1 Post
Default

I have experimented with removing the resonator from the inner wing,
Without any other modifications there was a loss of power, not a gain. More noise but less BHP.
Old 07 February 2008, 09:30 AM
  #4  
Andy.F
Subaru Tuning Specialist
 
Andy.F's Avatar
 
Join Date: Jun 2002
Location: 7.74 @179 mph 1/4 mile - road legal
Posts: 6,654
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by jaypug
Is it worth getting rid of my airbox resonator on my RB5. Im running the standard airbox with a k&n panel filter.

Yes it is, especially on version 5 and 6. Also close off the hole in the inner wing that the original air inlet fed through. The result is that you have reduced the flow restriction to the turbo and you are now taking the air from a colder area than originally directly beside the radiator.

Due to the method of airflow measurement on this particular model, this mod is unlikely to show any meaningfull difference on a rolling road, this is due to it being unable to replicate the on-road airflow currents and underbonnet temperatures.
From the results of real on-road testing, monitoring engine air and fuel flow rates, combined with acceleration rates I am convinced this is a worthwhile mod. Best bit is that its free !

Andy
Old 07 February 2008, 07:06 PM
  #5  
jaypug
Scooby Regular
Thread Starter
iTrader: (4)
 
jaypug's Avatar
 
Join Date: Feb 2007
Location: Irnham,Grantham, Lincs
Posts: 1,115
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Andy.F
Yes it is, especially on version 5 and 6. Also close off the hole in the inner wing that the original air inlet fed through. The result is that you have reduced the flow restriction to the turbo and you are now taking the air from a colder area than originally directly beside the radiator.

Due to the method of airflow measurement on this particular model, this mod is unlikely to show any meaningfull difference on a rolling road, this is due to it being unable to replicate the on-road airflow currents and underbonnet temperatures.
From the results of real on-road testing, monitoring engine air and fuel flow rates, combined with acceleration rates I am convinced this is a worthwhile mod. Best bit is that its free !

Andy

Thanks for the advise. People say you need to map your car when you have done this mod?? What are your views on this??
Old 07 February 2008, 08:49 PM
  #6  
Andy.F
Subaru Tuning Specialist
 
Andy.F's Avatar
 
Join Date: Jun 2002
Location: 7.74 @179 mph 1/4 mile - road legal
Posts: 6,654
Likes: 0
Received 1 Like on 1 Post
Default

To achieve the best gains then ideally yes. Best done at the same time as other mods such as a decat and remap.
If you are not doing any other mods then I'd leave well alone !
Old 07 February 2008, 09:24 PM
  #7  
RBGUS
Scooby Regular
iTrader: (7)
 
RBGUS's Avatar
 
Join Date: May 2007
Location: Edinburgh
Posts: 521
Likes: 0
Received 0 Likes on 0 Posts
Default

There you go jay probably the best advice you'll get.
Thanks andy
Old 10 February 2008, 11:45 PM
  #8  
harvey
Former Sponsor
iTrader: (48)
 
harvey's Avatar
 
Join Date: Mar 2001
Location: Darlington
Posts: 10,419
Likes: 0
Received 1 Like on 1 Post
Default

Without doing additional work, the airflow past the MAF sensor is disrupted and this will lead to a reduction in power. It could also run the engine dangerously lean in some circumstances.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Scott@ScoobySpares
Full Cars Breaking For Spares
55
05 August 2018 07:02 AM
Scott@ScoobySpares
Full Cars Breaking For Spares
7
14 December 2015 08:16 AM
Tarling
Subaru Parts
10
19 October 2015 07:58 PM
shorty87
Other Marques
0
25 September 2015 08:52 PM



Quick Reply: Airbox resonator



All times are GMT +1. The time now is 12:26 AM.