It's all about the diameter of induction pipework with no restrictions and the size of the air box length and width .
thanks mate...more to come.........The stock air box on a 1.8t becomes restrictive above 230bhp. VAG never intended their engines to be taken any higher than this. That is the reason cone filters are used.
thanks matee. so its ok to go....approved??Just throw the home made foam insulation heat shield in the bin fit the s2000 filter and close the bonnet no need to try an re invent the wheel when the product is proven
thanks Jenno. When I closed the bonnet, the top of the foam is definately preessing against it. So Its a definate seal. I was thinking creating a cone is like create a scoop that can hold up some intake air pressure to feed the turbo. Anyway, as you said, its going to leave 100C after the turbo, in this case, yes, I better leave it open. I have not done the driving yet. So time will tell.......
Only purpose of a 'heat shield' is to mount the filter/maf securely.
Temperature of air at the filter is meaningless on a turbocharged car, efficiency of inter cooler and air getting to the inter oiler dictates IATs.
Doesn't matter what you do at the filter, it's going through a heat pump (turbo).
like mine, except mine is foam.....Is this okish? non vag, Green Cotton stainless heat shield and a cold feed from lower bumper to bottom of cone air filter.
View attachment 55936
I see....Only purpose of a 'heat shield' is to mount the filter/maf securely.
Temperature of air at the filter is meaningless on a turbocharged car, efficiency of inter cooler and air getting to the inter oiler dictates IATs.
Doesn't matter what you do at the filter, it's going through a heat pump (turbo).
That article refers to changes in ambient air temperatures, which makes sense, as hotter ambient air means the intercooler has less cooling ability.Folks, just did some research and this article explains the importants of intake air temp for turbos, also some tips to improve reduce intake temp. This article also did an experiment on Mazda 6 showing 20F difference in intake temp would cost you 30WHP..intersting.....http://stratifiedauto.com/blog/the-effects-of-intake-air-temperatures-on-turbocharged-vehicles/ tell me what you think?
Article also mentioned the bigger intake pipe the better-cooler air..etc
So I need to insulate the maf from the engine heat correct?That article refers to changes in ambient air temperatures, which makes sense, as hotter ambient air means the intercooler has less cooling ability.
I would love to see a filter fed with +20 degree air and the differences recorded, but i would put my left knacker on it being negligable.
Bottom line, worry about securely mounting a fragile maf sensor and TIP, not what, where and how the air filter is gettin air. It will get what it needs, the engine bay isnt a vacuum.
no, you need to support it ideally from movement and vibration.So I need to insulate the maf from the engine heat correct?
you really think the density different is THAT significant for this application:Hotter air is less dense so the turbo compressor will need to spin faster to compress it to the same pressure as cooler air. This will mean the turbo is likley to be less efficient and have to work harder.
I did have my sapre wheel off, so here you go anther 2hp, total of 4hp=aprrox 0.05 sec FASTER 1/4 MILE...HAAAAAAAAABest way to prove it without using theorys etc would be to get someones cars on the rollers with and without a heat shield, then with and without a CAI. But as prawn has said, he doesn't bother with a CAI and his car probably gets thrashed significantly more than ours and still works fine. he might gain 2hp or something stupid from a CAI but does that 2hp realllllly make that much difference? it's all pub figures at the end of the day. if you're that intrested in going a tiny bit faster just rip the rear seats & spare wheel out.
please further update, I will do mine this week....Just to chip in, I changed from oem airbox with dry foam filter to the S2000 cone, with no cold feed or heat shield, the car feels more responsive, especially at higher revs, not sat in traffic for any time yet, so no real heat soak yet, which will probably make some difference.
Just to chip in, I changed from oem airbox with dry foam filter to the S2000 cone, with no cold feed or heat shield, the car feels more responsive, especially at higher revs, not sat in traffic for any time yet, so no real heat soak yet, which will probably make some difference.
so far, day 1, it gives the sound of "bo..bo....fast beat after 4000rpm-a low bass sound and does not drone., anything before that is quite as stock.What about the induction noise? Does it drone etc?
FOLKS, I went down to plummer shop expecting a suitable PVC for the filter...But there is not a right size for S2000 filter, next size is 22cm OD, which is too big...so I went home dissapointed.
An hour later, I come up with a better idea, TO RECYLE my 4cm thick insulation foam-used for air-con pipings from my junk yard.......OH Yeas a tight fit using tapes to wrap around the filter and to ensure there is no possible air leak from the back of the pod. And here is the picture. What you reckon guys? Any more mods ??? ThanksView attachment 55919
sorry what is B5V3 means???Bare in mind once you ditch the original TIP and get a B5 V3 or similar then the sound produced will change.
Really odd thread this, lots of questions about this filter and the pros and cons... all of which have been covered in depth previously.
thanks man, I have not upgrade this yet. Do you think this will improve throttle responses or else ???
thanks, that is my next step......I've assumed you've got an S3 by the fact your S2000 filter fitted directly onto the MAF? If so, the TIP along with the original downpipe/cat are probably the two most restrictive items on the car. It's all about the flow.