Jamie_uk Posted September 13, 2016 Share Posted September 13, 2016 Afternoon all, quick question, what's this bottle for and do I need to keep it on? my guess is it's to drain water out the intake box but mine was just full of spiders etc. Was hoping to ditch it and fit mesh over the hole thinking it will improve air intake. Thanks Quote Link to comment Share on other sites More sharing options...
Mark D Posted September 13, 2016 Share Posted September 13, 2016 If it's the one I'm thinking of, it's to help silence it a bit and hold a reservoir of air available for sudden acceleration Sent from my iphone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Jay762 Posted September 14, 2016 Share Posted September 14, 2016 Got a similar one on mine - I put it down to a water catch tank, hadn't figured on an air reservoir. Is your motor struggling at the moment - have you got a high flow panel filter fitted? Quote Link to comment Share on other sites More sharing options...
Sandals Posted September 14, 2016 Share Posted September 14, 2016 Is it maybe the resonator? Quote Link to comment Share on other sites More sharing options...
Jamie_uk Posted September 14, 2016 Author Share Posted September 14, 2016 2mm hole in the bottom figured was to catch water but could work as a resonator. Also have a small rectangular box halfway up the air intake pipe no idea what that's for perhaps that acts as a air resouvior struggles at 2-3k but I figure just bad gear choice. Put a piper cross panel in sharper response but still funny at that range Quote Link to comment Share on other sites More sharing options...
Sandals Posted September 14, 2016 Share Posted September 14, 2016 Have you put the box back on and see if it makes a difference? Quote Link to comment Share on other sites More sharing options...
Jamie_uk Posted September 14, 2016 Author Share Posted September 14, 2016 Haven't removed the bottle yet wanted to know what It was first. gonna pull it off tonight. The airbox is untouched as the filter WAs just a drop in replacement. From induction kit pictures they don't seem to use that bottle Quote Link to comment Share on other sites More sharing options...
Sandals Posted September 14, 2016 Share Posted September 14, 2016 Yeh induction kits don't have any resonators... My resonator which i removed had a small hole in the bottom of it as well, like you said more than likely for drainage purposes Quote Link to comment Share on other sites More sharing options...
Jay762 Posted September 14, 2016 Share Posted September 14, 2016 The 2-3K is more likely the exhaust - resonance / back pressure waves etc, a back box as suggested would go some to smoothing that but exhaust powervalves were invented because of that flat spot Quote Link to comment Share on other sites More sharing options...
Jamie_uk Posted September 14, 2016 Author Share Posted September 14, 2016 Sweet I'll take it out tonight, got some mesh to put over the open hole so it'll still drain and let more air in. Wanted the put some over the intake funnel? Scoop? Whatever it's called because the box fills with grass bugs and twigs but gonna be a pain with the shape. Body repair aluminium mesh only 1.50 at Halfords ATM. Was hoping to put some behind my grills but tried taking them out last night but couldn't budge it think the whole front end comes off as one. Radiator needs cleaning out aswell. Quote Link to comment Share on other sites More sharing options...
Jay762 Posted September 14, 2016 Share Posted September 14, 2016 Yup its an easy job to remove the bumper and then you can get to the back of the grills no issue - replacing with an sti item is an option (badges come off easily enough) carbon fibre option here http://www.ebay.co.uk/itm/Carbon-Fiber-Front-Mesh-Grill-Grille-for-2008-2011-2010-Subaru-Impreza-WRX-STi-/221802714469?hash=item33a478d565:g:PO0AAOSw~OdVgDUG Quote Link to comment Share on other sites More sharing options...
Mark D Posted September 14, 2016 Share Posted September 14, 2016 Saw a program speed with guy Martin, they were racing a van, had some sort of problems with either speed or cooling or aerodynamics but they found out having mesh created quite a bit of restriction at speed Sent from my iphone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Jay762 Posted September 14, 2016 Share Posted September 14, 2016 I saw the same - most enjoyable - mind you they did replace the standard ford lump with a US turbo V6 beasty, which they then tweaked a little . The RX hatch has a front end that is more plastic than holes so you should be able to trade off one against the other by substituting a wrx or sti item and maintain enough airflow Quote Link to comment Share on other sites More sharing options...
Mark D Posted September 14, 2016 Share Posted September 14, 2016 Oooo that bottle, was thinking about the box :) I drive a NA, when I floor the poor thing I get a slight whistle noise that is coming from that little drainage hole, so in my mind I pretend that I had done well in life and make myself believe the whistle is from a turbo (or two) :) Sent from my iphone using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
Jamie_uk Posted September 14, 2016 Author Share Posted September 14, 2016 Plenty holes in the front but they are so big a small child would get stuck in the radiator. And strangely the holes for the airbox are tiny it's only the top 3 that divert up into the air feed which I didn't actually realise at first, Was thinking about meshing behind the grills if I have time I'll pull out the underside fixings aswell. ill take a look at that Sti piece cheers mate. Like the normal grills just not all the crap they let through, and now the restricted airflow. Hopefully removing that bottle would let some more air into the box it's like it's not getting enough at low speeds. Curious to how loud it's gonna be now. Stuck an induction kit on my mates 1.4xsara it actually sounded alright mines NA aswell but I only get a whistle when I drop off the throttle it sounds like a jet engine slowing down Quote Link to comment Share on other sites More sharing options...
Jay762 Posted September 14, 2016 Share Posted September 14, 2016 I just make ptssssh sounds in mine when it changes gear 1 Quote Link to comment Share on other sites More sharing options...
Jamie_uk Posted September 14, 2016 Author Share Posted September 14, 2016 Haha I take my mate with a bottle of coke sounds a lot deeper now, good bit louder after 4.5k. Intake manifolds not as hot. Now to spend all night googling and checking out the replacement grill Quote Link to comment Share on other sites More sharing options...
Jamie_uk Posted September 14, 2016 Author Share Posted September 14, 2016 Thanks all for the help Quote Link to comment Share on other sites More sharing options...
Jamie_uk Posted September 14, 2016 Author Share Posted September 14, 2016 @Jay762 am I right in thinking the wrx parts will fit my car but sti won't because te front end is wider? Looking at some zunsport grills but they look like they fit ontop of the existing grills instead of replacing them Quote Link to comment Share on other sites More sharing options...
Jay762 Posted September 14, 2016 Share Posted September 14, 2016 I believe the center insert is the same across the models - The STI bumper is wider to blend with flared arches. Yes the Zunsport option fits over the front of the lower holes but behind the upper holes and inside bonnet scoop Quote Link to comment Share on other sites More sharing options...
kershaw-330s Posted September 16, 2016 Share Posted September 16, 2016 It's a resonator and also helps give a consistent maf reading by keeping a constant pressure was thinking about removing mine but also it must help prevent water getting in so I've left mine on till I get an induction kit Sent from my Nokia 3310 using Tapatalk Quote Link to comment Share on other sites More sharing options...
kershaw-330s Posted September 16, 2016 Share Posted September 16, 2016 2mm hole in the bottom figured was to catch water but could work as a resonator. Also have a small rectangular box halfway up the air intake pipe no idea what that's for perhaps that acts as a air resouvior struggles at 2-3k but I figure just bad gear choice. Put a piper cross panel in sharper response but still funny at that range Applying wot under 3k is not recommended especially in higher gears dramatically increases the risks of ring-land failure Sent from my Nokia 3310 using Tapatalk Quote Link to comment Share on other sites More sharing options...
Jamie_uk Posted September 16, 2016 Author Share Posted September 16, 2016 might have to consider refitting it then, removed but put a mesh over it so water could still drain away. think its actually losing pressure aswell, debated running a second intake to the hole but cant find anywhere suitable to run a pipe. oh hell thanks for the info, i presume 'wot' is throttle? ill go back to lower gears keeping up the revs, runs better that way anyway and strangely fuel efficiency goes up. Quote Link to comment Share on other sites More sharing options...
kershaw-330s Posted September 16, 2016 Share Posted September 16, 2016 Yes wot = wide open throttle . it's somthing todo with the short stroke and just general big turbo and huge Pistons on the 2.5 try not to give it full beans below 3k Sent from my Nokia 3310 using Tapatalk Quote Link to comment Share on other sites More sharing options...
Jamie_uk Posted September 16, 2016 Author Share Posted September 16, 2016 Ah right. 2.0 NA, are they still an issue with ring land failure? Naturally the dealership told me nothing of this big issue or any others Quote Link to comment Share on other sites More sharing options...
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