Air intake for N/A 850's
#1
Air intake for N/A 850's
Ok guys, who can help me out here...?
I want to put in a cone filter and remove my airbox. I have a nice K&N cone filter on an inlet tube with the MAF sensor attachment nicely left in place. However, I need a heat shroud.
ipd and EST both say around $130-$140 for JUST the metal heat shroud... seems steep for me... was wondering if anyone ever tried to bend their own sheet metal and replicate what these guys are selling?
I want to put in a cone filter and remove my airbox. I have a nice K&N cone filter on an inlet tube with the MAF sensor attachment nicely left in place. However, I need a heat shroud.
ipd and EST both say around $130-$140 for JUST the metal heat shroud... seems steep for me... was wondering if anyone ever tried to bend their own sheet metal and replicate what these guys are selling?
Last edited by TacklaNHL; 08-16-2010 at 10:39 AM.
#2
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#5
If you are talking about my old setup I didn't cut the top of the box off. You unscrew the MAF sensor from the box and then remove the clips that hold the top of the airbox to the bottom part and just remove the top of the airbox. Very simple. You will need a Torx driver though forget which size. T-10 or T-25...
As for heat soak, yes you would see a lot without sheilding of some kind. So fab up your own. Your N/A so it isn't like your going to see any gains anyways. You will get some sound and that is about it. I found out as to most that modding a N/A becomes pointless. At least engine wise. Cosmetics and suspension sure very easy and looks great but for engine performance you need to start with a turbo model.
As for heat soak, yes you would see a lot without sheilding of some kind. So fab up your own. Your N/A so it isn't like your going to see any gains anyways. You will get some sound and that is about it. I found out as to most that modding a N/A becomes pointless. At least engine wise. Cosmetics and suspension sure very easy and looks great but for engine performance you need to start with a turbo model.
#6
without ripping into the engine im going to have to agree with s70driver.... and there really isn't that much out there for internals...
saying that im not saying that you shouldn't mod your car... if you want to... go ahead. =) everyone has a preference
also... a thought just hit me.... how much more filter area is there on a cone filter over a standard panel filter? why not just get a drop in?
measure the 2 circumfrances on your cone and shoot them to me... I'd love to do the math to see if its even worth it...
saying that im not saying that you shouldn't mod your car... if you want to... go ahead. =) everyone has a preference
also... a thought just hit me.... how much more filter area is there on a cone filter over a standard panel filter? why not just get a drop in?
measure the 2 circumfrances on your cone and shoot them to me... I'd love to do the math to see if its even worth it...
#7
Here is the link: https://volvoforums.com/forum/volvo-850-16/850t-air-box-mod-my-writeup-44300/
Air box mod.
Air box mod.
#8
K & N filters, box vs cone...
I guess the ultimate test would be on the track. Have someone tell what times they had with a K & N box vs their new K & N cone, with all other matters the same. That is what test & tune track days are all about.
#9
without ripping into the engine im going to have to agree with s70driver.... and there really isn't that much out there for internals...
saying that im not saying that you shouldn't mod your car... if you want to... go ahead. =) everyone has a preference
also... a thought just hit me.... how much more filter area is there on a cone filter over a standard panel filter? why not just get a drop in?
measure the 2 circumfrances on your cone and shoot them to me... I'd love to do the math to see if its even worth it...
saying that im not saying that you shouldn't mod your car... if you want to... go ahead. =) everyone has a preference
also... a thought just hit me.... how much more filter area is there on a cone filter over a standard panel filter? why not just get a drop in?
measure the 2 circumfrances on your cone and shoot them to me... I'd love to do the math to see if its even worth it...
#10
my eyeball must be calibrated the same as yours bobec. I think the drop in is pretty close to the same size. but when i end up at autozone or some other shop i'll see if they have any cones in stock and do some measuring. Unless someone can shoot me the numbers.
as for air flow since they are both made by k&n and are the same materials (cotton, mesh, and oil) they are going to flow the same per cubic inch...
as for air flow since they are both made by k&n and are the same materials (cotton, mesh, and oil) they are going to flow the same per cubic inch...
#16
Okay I started to do the calculations and then thought let me Google the surface area of a truncated cone and here we go.
http://www.onlineconversion.com/obje...trunc_cone.htm
so plugging the values in remembering that R = d/2 and using the 6in as the height we get 148.97sq in
But this is the entire cone and we don't have filter on the ends so we subtract the areas of the ends
big end A = (PI) x r x r = (3.14) x 3.125 x 3.125 = 30.66
small end A =(PI) x r x r = (3.14) x 2.25 x 2.25 = 15.89
so the total effective area is 148.97 - 30.66 - 15.89 = 102.85 sq in
My panel is 6.5 x 13 = 84.5 in sq
So my eyeball was wrong and you get 22% increase in area with the cone.
http://www.onlineconversion.com/obje...trunc_cone.htm
so plugging the values in remembering that R = d/2 and using the 6in as the height we get 148.97sq in
But this is the entire cone and we don't have filter on the ends so we subtract the areas of the ends
big end A = (PI) x r x r = (3.14) x 3.125 x 3.125 = 30.66
small end A =(PI) x r x r = (3.14) x 2.25 x 2.25 = 15.89
so the total effective area is 148.97 - 30.66 - 15.89 = 102.85 sq in
My panel is 6.5 x 13 = 84.5 in sq
So my eyeball was wrong and you get 22% increase in area with the cone.
#17
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#19
The panel made a big improvement in my car and I'm not sure I'd pay the extra money for the 22%
#20
Not to get all goofy on anyone or get off-topic, but the surface area of the cone doesn’t matter. The diameter of the intake hose does, which is the bottleneck in this scenario. The filter will not force more air into the hose so it’s size will not have any improvement on performance.
Running with the cone and a heat shield will sound sweet, for sure.
Running with the cone and a heat shield will sound sweet, for sure.