Keep it UP: Don't go Limp!
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Originally Posted by My535i' post='832870' date='Apr 1 2009, 08:24 AM
I'm just throwing this info out there as I personally when it comes to mods like to keep it simple soo... I would definitely prefer to run the stock air box with a drop in as well...I'm not b/c of other testing that I have seen. I'd love to see more data...
Pretty extensive open element vs stock air box testing was done over at n54 a while back. I will look for the thread(s). Anyway, I believe the conclusion was that with stock/slightly raised boost levels the stock air box was the way to go since open element made no improvements. However, once the boost was turned up much higher than stock the air box would actually produce a pressure drop/resistance and cause a loss of power. At high boost levels the n54 made more power with an open element rather than the stock air box.
Obviously this applies only to the turbo N54 motors that are running aggressive tunes (if you have stock tune/not high boost tune or a NON-turbo e60 stock air box is probably the way to go). I'd love to see more back to back testing on n54 running high boost.
As a side note...In my personal setup I am running full time water/meth injection so even if the temps are increased by the open element my water/meth cools the charge down before going into the motor....so I am more concerned with pressure drop. Like I said if more data is brought forward on high boost cars proving this wrong I would gladly go back to the stock air box
Pretty extensive open element vs stock air box testing was done over at n54 a while back. I will look for the thread(s). Anyway, I believe the conclusion was that with stock/slightly raised boost levels the stock air box was the way to go since open element made no improvements. However, once the boost was turned up much higher than stock the air box would actually produce a pressure drop/resistance and cause a loss of power. At high boost levels the n54 made more power with an open element rather than the stock air box.
Obviously this applies only to the turbo N54 motors that are running aggressive tunes (if you have stock tune/not high boost tune or a NON-turbo e60 stock air box is probably the way to go). I'd love to see more back to back testing on n54 running high boost.
As a side note...In my personal setup I am running full time water/meth injection so even if the temps are increased by the open element my water/meth cools the charge down before going into the motor....so I am more concerned with pressure drop. Like I said if more data is brought forward on high boost cars proving this wrong I would gladly go back to the stock air box
I also recall talks on n54tech regarding an open air vs stock air temps by terry that showed minimal temp difference between the two....
but 1 member did report better trap speeds via a gtech with stock box vs. dci...
have you ran any 1/4 miles lately now that you've gotten your water/meth kit going?
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I have been trying to get out to the track but something comes up pretty much every weekend 
We know the map 7 is more aggressive than the 1.0 that I was running before. My data logs show that I am in spec as far as timing goes with map 7 so the car should def be running harder. Seat of the pants agrees with this as the car has more power down low and pulls stronger through the upper band as well. Overall it "feels" amazing...I will get some numbers to go along with that as soon as I can.
We know the map 7 is more aggressive than the 1.0 that I was running before. My data logs show that I am in spec as far as timing goes with map 7 so the car should def be running harder. Seat of the pants agrees with this as the car has more power down low and pulls stronger through the upper band as well. Overall it "feels" amazing...I will get some numbers to go along with that as soon as I can.
Originally Posted by GENEaTALS' post='832912' date='Apr 1 2009, 11:53 AM
+1 for seeing some tests with a jb3 or procede....the 535i tested in this thread AFAIK does have dinan S2 on it....
I also recall talks on n54tech regarding an open air vs stock air temps by terry that showed minimal temp difference between the two....
but 1 member did report better trap speeds via a gtech with stock box vs. dci...
have you ran any 1/4 miles lately now that you've gotten your water/meth kit going?
I also recall talks on n54tech regarding an open air vs stock air temps by terry that showed minimal temp difference between the two....
but 1 member did report better trap speeds via a gtech with stock box vs. dci...
have you ran any 1/4 miles lately now that you've gotten your water/meth kit going?
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I'm just throwing this info out there as I personally when it comes to mods like to keep it simple soo... I would definitely prefer to run the stock air box with a drop in as well...I'm not b/c of other testing that I have seen. I'd love to see more data...
Pretty extensive open element vs stock air box testing was done over at n54 a while back. I will look for the thread(s). Anyway, I believe the conclusion was that with stock/slightly raised boost levels the stock air box was the way to go since open element made no improvements. However, once the boost was turned up much higher than stock the air box would actually produce a pressure drop/resistance and cause a loss of power. At high boost levels the n54 made more power with an open element rather than the stock air box.
Obviously this applies only to the turbo N54 motors that are running aggressive tunes (if you have stock tune/not high boost tune or a NON-turbo e60 stock air box is probably the way to go). I'd love to see more back to back testing on n54 running high boost.
As a side note...In my personal setup I am running full time water/meth injection so even if the temps are increased by the open element my water/meth cools the charge down before going into the motor....so I am more concerned with pressure drop. Like I said if more data is brought forward on high boost cars proving this wrong I would gladly go back to the stock air box
Pretty extensive open element vs stock air box testing was done over at n54 a while back. I will look for the thread(s). Anyway, I believe the conclusion was that with stock/slightly raised boost levels the stock air box was the way to go since open element made no improvements. However, once the boost was turned up much higher than stock the air box would actually produce a pressure drop/resistance and cause a loss of power. At high boost levels the n54 made more power with an open element rather than the stock air box.
Obviously this applies only to the turbo N54 motors that are running aggressive tunes (if you have stock tune/not high boost tune or a NON-turbo e60 stock air box is probably the way to go). I'd love to see more back to back testing on n54 running high boost.
As a side note...In my personal setup I am running full time water/meth injection so even if the temps are increased by the open element my water/meth cools the charge down before going into the motor....so I am more concerned with pressure drop. Like I said if more data is brought forward on high boost cars proving this wrong I would gladly go back to the stock air box
Here is a useful tool: http://raceprecision.com/media/chargecooler_te.htm
BTW, water/meth DOESN't cool intake air temperatures. The intake air temps are hot hot enough to evaporate the water/meth.
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Originally Posted by PraiseTheLowered' post='832531' date='Apr 1 2009, 12:19 AM
youre sure? based on what? your opinion?
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My Ride: 2011.5 Alpine White E90 M3 | Black Novillo Leather | Carbon Fiber Leather Trim | ZCP | ZP2 | M-DCT | Navigation | Moonroof | 6FL Mods: TMS 12.5mm spacers all around l Hawk HPS Brake Pads l OEM M3 Edition Grills l Paint Matched Side Gills l Key Hole D
E, I saw on a few posts a member that has a jb3 comment that if he could go back he would just go with an RPi/PC flash...do you guys have a tune/flash available for the n54 engine/x35 models?
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Originally Posted by GENEaTALS' post='833496' date='Apr 1 2009, 05:55 PM
E, I saw on a few posts a member that has a jb3 comment that if he could go back he would just go with an RPi/PC flash...do you guys have a tune/flash available for the n54 engine/x35 models?
Injen is trying to argue our testing procedures. Aparently, we didnt dyno the same car! LMFAO. Really? It looked like the same car, it had the same VIN number and the car was brought to us by a big filipino scary man.
Oh yeah and you need to run race gas when you test their intakes. 
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My Ride: 2011.5 Alpine White E90 M3 | Black Novillo Leather | Carbon Fiber Leather Trim | ZCP | ZP2 | M-DCT | Navigation | Moonroof | 6FL Mods: TMS 12.5mm spacers all around l Hawk HPS Brake Pads l OEM M3 Edition Grills l Paint Matched Side Gills l Key Hole D
Originally Posted by RPIpower' post='835202' date='Apr 3 2009, 08:53 AM
PC does have a tune for it but I have not been able to confirm the claimed hp gain myself yet. I will let you all know once I get to do a before/after myself.
Injen is trying to argue our testing procedures. Aparently, we didnt dyno the same car! LMFAO. Really? It looked like the same car, it had the same VIN number and the car was brought to us by a big filipino scary man. Oh yeah and you need to run race gas when you test their intakes.
Injen is trying to argue our testing procedures. Aparently, we didnt dyno the same car! LMFAO. Really? It looked like the same car, it had the same VIN number and the car was brought to us by a big filipino scary man.
Oh yeah and you need to run race gas when you test their intakes. 
Nice, thanx for replying RE: the PC tune as well E
