ronttuk Posted September 1, 2013 Share Posted September 1, 2013 Ive fitted a FMIC and the pipe supplied fouls the standard air filter so I got hold of a HKS mushroom filter but still cant fit that on I need the alloy pipe that goes between the mushroom filter and the airflow meter which I cant seem to find anywhere to purchase one, So how did you guys get around this problem?? Quote Link to comment Share on other sites More sharing options...
safcdixon Posted September 1, 2013 Share Posted September 1, 2013 Could you just use regular s/s pipe and silicone couplers to make up the pipe? Loads of these on ebay, thats all mine has fitted, air flow metre has me thinking though :/ is yours a uk spec? I dont think ive seen one on mine Quote Link to comment Share on other sites More sharing options...
ronttuk Posted September 1, 2013 Author Share Posted September 1, 2013 Opps sorry yes mines a UK spec Quote Link to comment Share on other sites More sharing options...
Ian C Posted September 1, 2013 Share Posted September 1, 2013 I'd heartily recommend not having a HKS mushroom air filter as they don't stop grit-sized particles. Scored bores and knackered turbos are the order of the day after running one of those. Quote Link to comment Share on other sites More sharing options...
Shane Posted September 2, 2013 Share Posted September 2, 2013 I'd heartily recommend not having a HKS mushroom air filter as they don't stop grit-sized particles. Scored bores and knackered turbos are the order of the day after running one of those. I thought HKS addressed this issue and went from a dual layer to triple layer element with improved filtering properties, maybe that's just forum nonsense I have read somewhere. I have been running a HKS panel filter now for ages, I do hope it hasnt let too much through, my intake pipe post filter looks clean enough. I have just moved my intake to the bumper vent where the smic used to be and was about to use a mushroom filter with a triple layer element, but now I am wondering if I should't and to find something else. Quote Link to comment Share on other sites More sharing options...
Dnk Posted September 2, 2013 Share Posted September 2, 2013 (edited) I used the Apexi dual cone type on my car for a number of years with no problems but i fabricated my own pipe and flange to connect it to the MAF. I also fabricated my own hard pipes so i could use the o/e airbox if i wished in conjunction with a HKS R spec fmic Edited September 2, 2013 by Dnk (see edit history) Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted September 2, 2013 Share Posted September 2, 2013 I thought HKS addressed this issue and went from a dual layer to triple layer element with improved filtering properties, maybe that's just forum nonsense I have read somewhere. I have been running a HKS panel filter now for ages, I do hope it hasnt let too much through, my intake pipe post filter looks clean enough. I have just moved my intake to the bumper vent where the smic used to be and was about to use a mushroom filter with a triple layer element, but now I am wondering if I should't and to find something else. Fit something else. I have first-hand experience of mushroom filters failing, destroying both turbos and my engine. They're awful. Save yourself thousands and fit a decent filter. Apexi is one of the better ones, but a stock airbox is best. Quote Link to comment Share on other sites More sharing options...
Ian C Posted September 2, 2013 Share Posted September 2, 2013 Shane, you need to check an area of pipework where oil from the PCV system pools, like the pipes into the FMIC. The oil might well be rather gritty to the touch. Quote Link to comment Share on other sites More sharing options...
Ian C Posted September 2, 2013 Share Posted September 2, 2013 K&N are very very good, I've run one for nearly ten years and there is no sign of grit or debris in the intake side as of last week when I sorted the injectors, and the turbo vanes are pristine and uneroded/chipped The crap that washes out of the filter exterior side when you clean it is also testament to how much it stops! Quote Link to comment Share on other sites More sharing options...
Shane Posted September 2, 2013 Share Posted September 2, 2013 Fit something else. I have first-hand experience of mushroom filters failing, destroying both turbos and my engine. They're awful. Save yourself thousands and fit a decent filter. Apexi is one of the better ones, but a stock airbox is best. OK thanks, I have been running the stock airbox with a HKS panel until now, but have recently re-jigged my fmic pipework and made a slam panel. TBH (and I am now getting ready to be shot down) I can't see the advantage of running a stock air box once a slam panel is fitted, the top stock air scoop isn't going to see hardly any fresh air once the panel is in place. We were looking at the cars at the 20th and was amazed how many had the slam panel fitted and the stock airbox, the only place for the air for the top scoop to come from is up through the cut outs in the panel. I looked long and hard at this and the all the effort that Toyota put into distributing the cold air between both the top scoop and the rad is wasted as soon as a fmic is fitted and although the rad gets plenty if the slam panel is added, the top scoop gets only a fraction. I have almost done a "Slutters" and sealed up all the gaps at the side of the rad, filled in the gaping holes between the rad and the headlights and moved my intake to the driver side vent area. Will post some pictures in a while. Shane, you need to check an area of pipework where oil from the PCV system pools, like the pipes into the FMIC. The oil might well be rather gritty to the touch. OK cheers Ian, I have the pipes in the garden that I have just last week replaced, I will check and report back. Quote Link to comment Share on other sites More sharing options...
Shane Posted September 2, 2013 Share Posted September 2, 2013 This is how mine is at the moment, the idea was to fit the HKS mushroom at the end of the hardpipe on a 45° bend so the front of the filter was pointing outwards. You can also see the slam panel template and the shield next to the headlight. Quote Link to comment Share on other sites More sharing options...
Guest Budz86 Posted January 12, 2014 Share Posted January 12, 2014 How did this work out for you in the end Shane? I currently have an HKS mushroom filter but I want to get rid of it. Was thinking of changing to a slightly customised stock airbox with TRD panel but as you say, with a front mount I can't see it getting decent airflow. Locating it in the bumper like that looks like it would work well, but might be a little vulnerable to damage from stones etc. flicking up off the road Quote Link to comment Share on other sites More sharing options...
MattP Posted January 12, 2014 Share Posted January 12, 2014 (edited) I'd heartily recommend not having a HKS mushroom air filter as they don't stop grit-sized particles. Scored bores and knackered turbos are the order of the day after running one of those. The new three layer hks replacement filter does the job as well as my old apexi and k&n units did the original hks mushroom filter did indeed let loads of crap through which was visible on inspection of the intake on both my old N/As To clarify I currently have my VVTI turbo side and intake side pipework etc removed and they are pristine no debris or dirt however do remember the hks triple layer is a disposable filter to be changed every 3k miles unlike the k&n Edited January 12, 2014 by MattP (see edit history) Quote Link to comment Share on other sites More sharing options...
Mk4Gaz Posted January 12, 2014 Share Posted January 12, 2014 I ended up making my own airbox, thus: http://www.mkivsupra.net/vbb/showthread.php?298851-Custom-TT-air-box-for-fmic Quote Link to comment Share on other sites More sharing options...
paulj1 Posted January 12, 2014 Share Posted January 12, 2014 can you get custom size K and N filters? I want one for mine to fit the end of my HKS induction kit but there is not much room between the end of the pipe and back of the headlight Quote Link to comment Share on other sites More sharing options...
Josh Posted January 12, 2014 Share Posted January 12, 2014 How did this work out for you in the end Shane? I currently have an HKS mushroom filter but I want to get rid of it. Was thinking of changing to a slightly customised stock airbox with TRD panel but as you say, with a front mount I can't see it getting decent airflow. Locating it in the bumper like that looks like it would work well, but might be a little vulnerable to damage from stones etc. flicking up off the road You could put mesh in the bumper to stop larger debris getting to the filter . I've got some to fit to mine to shield the CW SMIC and radiator a bit Quote Link to comment Share on other sites More sharing options...
Dim Sum Posted January 12, 2014 Share Posted January 12, 2014 I kept the stock airbox and got a aluminium pipe to fit around the box. Quote Link to comment Share on other sites More sharing options...
Shane Posted January 14, 2014 Share Posted January 14, 2014 How did this work out for you in the end Shane? I currently have an HKS mushroom filter but I want to get rid of it. Was thinking of changing to a slightly customised stock airbox with TRD panel but as you say, with a front mount I can't see it getting decent airflow. Locating it in the bumper like that looks like it would work well, but might be a little vulnerable to damage from stones etc. flicking up off the road I ended up flogging the HKS Mushroom to another member on here and bought a large cylindrical Ramair filter as it fitted the space I had perfectly. I may have a picture of the completed job and if so will post it up. Quote Link to comment Share on other sites More sharing options...
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