High flow air filters

jasst

Member
Messages
2,316
Remove the front bumper, or at the very least undo fixings on that side so it can be manipulated out of the way to allow room for removal of the airbox.
 

2b1ask1

Special case
Messages
20,262
There are people who claim to have extracted them without bumper removal but I'm not a believer, unless you cut the snorkel off it!
 

Dean Kuan

New Member
Messages
23
There are people who claim to have extracted them without bumper removal but I'm not a believer, unless you cut the snorkel off it!

Thanks man. I remove one side of the bumper undertray. Then flex the bumper a little and it's out now. Thanks man.
 
Messages
346
Tacking onto this thread to add a "third way". Instead of a K&N oiled air filter, they also offer a high performance oil free filter, RU-3105 HBK
See the other thread I posted about this replacement - replacing the entire air cleaner assembly with a silicone hose and this filter.
 

Spitfire980

Member
Messages
116
I was thinking of doing something like this for my 3200


Dandy3200GT-004.jpg



http://www.speedhunters.com/2011/05/car_spotlight_gt_gt_dandy_maserati_3200gt/
 

davy83

Member
Messages
2,821
Certainly the original air filter enclosure/housing is a bit rubbish and the fixed threaded inserts break and its hard to keep it in one piece. I do wonder though that the filter in your picture looks smaller in surface area that the original so if its allowing more airflow it must be reducing the amount of filtering it is doing, so this is a clear compromise. I am also not sure that the 3200 is a car that's screaming for more power, it already struggles with the 420 HP it has, not sure i would want more power on my car, but then i am getting old :)
 

RichTaps

Member
Messages
199
eng2.jpgeng1.jpg

I've put together this setup for my 3200. No road testing performed yet as I'm finishing up replacing the suspension.
The filters are these ITG pleated aluminium spun cotton gauze filters;
specifically the largest size inlet diameter: JC60/86RPF (Correction: They are not quite the largest size you can buy from ITG, but they are the largest size you can squeeze in between the head of the engine and the wing)

They then have an ITG foam oversock on each:
to provide a similar level of filtering to the standard filters.

From my calculations they should provide a fair bit more air flow capacity..... we'll see about power. From memory I think the filters have a combined BHP capacity of 600hp+
 
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RichTaps

Member
Messages
199
After successful road testing I'll post up the bits required to build your own. Hopefully they will also promote some nice turbo whooshing noises too ;-0
 

Spitfire980

Member
Messages
116
Awesome! this is what makes this community amazing!
You do that in the BMW groups im in and they will come and take your car away with pitchforks

After successful road testing I'll post up the bits required to build your own. Hopefully they will also promote some nice turbo whooshing noises too ;-0
Correct me if I'm wrong, wouldn't that suck in hot engine air?

I was thinking of doing a ram air design. get rid if #18 and #19 and put in BMC CDA style filters as close as possible to the openings on the sides of the grill.
That way, cold air from the grille enters the filters without them being cooked by engine heat

339F2AA347C688D2B2E02ADE9488AFD78BF4A33B.jpg

bmc-cda-universal-dynamic-airboxes-for-6-et-8-cyli_3.jpg

Im happy to hear your thoughts guys
 

DLax69

Member
Messages
4,265
Awesome! this is what makes this community amazing!
You do that in the BMW groups im in and they will come and take your car away with pitchforks


Correct me if I'm wrong, wouldn't that suck in hot engine air?

I was thinking of doing a ram air design. get rid if #18 and #19 and put in BMC CDA style filters as close as possible to the openings on the sides of the grill.
That way, cold air from the grille enters the filters without them being cooked by engine heat

View attachment 112714

View attachment 112715

Im happy to hear your thoughts guys
sounds like a decent approach, to me. I am having to modify the Spyder because when it arrived, the entire filter box AND the skid plates were missing, so the air filter is hanging in space with nothing but willpower keeping it attached.
 

RichTaps

Member
Messages
199
My design is working on the principles outlined in the below link. Essentially I’m working on the basis that the intake air gets heated by the turbo charger, then cooled by the intercoolers before entering the engine. As such, I’m betting that if the air going to the turbo is a little colder (as per your proposed BMC setup) I suspect it’ll be pretty much the same temperature (as the open cone filter) once it’s been through the (heating)turbo and (cooling) intercooler.

however, I won’t know without testing. Hopefully something I can do at some point. To be honest, if performance stays the same, but it makes an awesome noise I’ll be happy. Yeah, I’m a child :)

Love to see your setup if you go the BMC route!

 

Spitfire980

Member
Messages
116
My design is working on the principles outlined in the below link. Essentially I’m working on the basis that the intake air gets heated by the turbo charger, then cooled by the intercoolers before entering the engine. As such, I’m betting that if the air going to the turbo is a little colder (as per your proposed BMC setup) I suspect it’ll be pretty much the same temperature (as the open cone filter) once it’s been through the (heating)turbo and (cooling) intercooler.

however, I won’t know without testing. Hopefully something I can do at some point. To be honest, if performance stays the same, but it makes an awesome noise I’ll be happy. Yeah, I’m a child :)

Love to see your setup if you go the BMC route!


Following your advice, I did this

IDnCaK.jpg


DyU0cW.jpg



P Side (LHD)
Gm73CD.jpg



D Side
0XOJdZ.jpg


Still need to get socks and gold heat wrap them

Question, what did you do for the pipe going from the catch can to the air filter? and the pipe going from the booster to the front of the air box?
 

RichTaps

Member
Messages
199
Looking good. In regards brake booster hose and hose from catch can, you’ll need to tig weld a couple of small diameter ally pipes to your ally intake tube (the tube that you’ve attached your air filter to) . Did the trick for me.
 

davy83

Member
Messages
2,821
The article about cold air intakes, is clearly a sales pitch to persuade you its ok to buy their air filter products and does not really tell you any thing of value. I am also wondering why Maserati (who are very focussed on power) set it up the way they did which is more complicated if it was better in a simple setup like you suggest?
I think air temperature and density is the issue here? The turbos increase the pressure of the air intake to get more air into the engine, by making the air more dense by compression. The combustion chamber is a fixed volume so the only way to get more air in (so you can add more fuel) is to increase the density of the air in that volume, which is why turbos work. However air density is also directly proportional to temperature, see chart below. So if you use warmer air from the engine bay it is less dense and so you are also making the job of cooling the air from the turbos harder and, more importantly reducing the density, so you will get less power from the engine. The 3200 measures the delivered air temperature at the intake to the plenum and adjusts the fuel and ignition to suit, so warmer air will produce less power. So warmer air is not a good idea in my book, sorry just my two pence worth.


Air%20density%201atm%20temp%20F.jpg

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