Pose a ? to the board: Drop-In Vs. Cone...
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Evolving Member
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From: Sac-Town, Cali
Pose a ? to the board: Drop-In Vs. Cone...
OKay, I know I know, tis topic has been covered a million times but I was intersted in posing a question to you guys (and girls) about this. I am a big proponet of the stock airbox w/ a drop-in filter. I have the Works drop-in as it flows just a little bit more then the K&N and I love this thing, mostly because it has a stock look to it. Anyway, I was talkin to a buddy of mine and he kinda brought up a valid point that would be interesting to find some hard data on. The arguement is that the drop-in is pretty much fine for the Evo and in-fact actually draws in cooler air as it has the scoop unlike a cone filter which draws warmer air from the engine. Anyway, we got to talkin about how the when the turbo compresses the air, the temps go up (as such, the reason for an intercooler). It would be interesting to see if anybody could do an actual test of sorts to find out if that "hot" air the cone filter pulls in really changes the temps after it has been compressed by the turbo. I wouldn't mind seein a test done taking readings directly after the turbo/before the intercooler and right before the throttle body using a drop-in then a cone style filter...
What do you guys think? The engine bay temps the cone style filter draws in really goin to make a difference at the point the air enters the intake manifold after being compressed then going thru the intercooler? significantly?
Anyway, just my rant for the day....I'm still stickin to my drop-in...lol...
What do you guys think? The engine bay temps the cone style filter draws in really goin to make a difference at the point the air enters the intake manifold after being compressed then going thru the intercooler? significantly?
Anyway, just my rant for the day....I'm still stickin to my drop-in...lol...
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From what i've read, even CAI aren't nearly as effective on turbocharged cars for the reasons you mentioned above. That being said, the improved flow a cone filter will inevitably offer over a drop in seems the best bet to me. You can also rig some things up to 1) keep engine bay temps out 2) make the stock scoop effective (thought not as effective as with the box)
HOT AIR IS BAD.
Yes, It'll make a difference. Here let me explain... (this is only an example, all temps are examples, again EXAPMLES)
air come into the stock air box at 50 degress F, the turbo adds, lets say 100 F, so not were at 150 F, then the intercooler cools it 75 F, which ends up 75 F
Now the cone filter,
air comes into the cone filter at 80 F (its still 50 F outside, but there is extra heat from underhood), the turbo adds 100 F again, and were at 180 F, then the incooler cools it 75 F,
so we end up with 105 F, which is hotter then the stock air box.
THIS IS ONLY AN EXAMPLE, ALL TEMPS AND SUCH ARE JUST EXAMPLES
Yes, It'll make a difference. Here let me explain... (this is only an example, all temps are examples, again EXAPMLES)
air come into the stock air box at 50 degress F, the turbo adds, lets say 100 F, so not were at 150 F, then the intercooler cools it 75 F, which ends up 75 F
Now the cone filter,
air comes into the cone filter at 80 F (its still 50 F outside, but there is extra heat from underhood), the turbo adds 100 F again, and were at 180 F, then the incooler cools it 75 F,
so we end up with 105 F, which is hotter then the stock air box.
THIS IS ONLY AN EXAMPLE, ALL TEMPS AND SUCH ARE JUST EXAMPLES
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Evolving Member
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From: Sac-Town, Cali
Originally Posted by Evo_Kid
HOT AIR IS BAD.
Yes, It'll make a difference. Here let me explain... (this is only an example, all temps are examples, again EXAPMLES)
air come into the stock air box at 50 degress F, the turbo adds, lets say 100 F, so not were at 150 F, then the intercooler cools it 75 F, which ends up 75 F
Now the cone filter,
air comes into the cone filter at 80 F (its still 50 F outside, but there is extra heat from underhood), the turbo adds 100 F again, and were at 180 F, then the incooler cools it 75 F,
so we end up with 105 F, which is hotter then the stock air box.
THIS IS ONLY AN EXAMPLE, ALL TEMPS AND SUCH ARE JUST EXAMPLES
Yes, It'll make a difference. Here let me explain... (this is only an example, all temps are examples, again EXAPMLES)
air come into the stock air box at 50 degress F, the turbo adds, lets say 100 F, so not were at 150 F, then the intercooler cools it 75 F, which ends up 75 F
Now the cone filter,
air comes into the cone filter at 80 F (its still 50 F outside, but there is extra heat from underhood), the turbo adds 100 F again, and were at 180 F, then the incooler cools it 75 F,
so we end up with 105 F, which is hotter then the stock air box.
THIS IS ONLY AN EXAMPLE, ALL TEMPS AND SUCH ARE JUST EXAMPLES
I am also a fan of the stock airbox. I am currently at 370 WHP and it is not a restriction yet (as measured by the UTEC). I measured many air flow anomolies with the Cone filter that I do not see with the stock box. Lets face it. The only reason tht most people go with a cone filter is to hear the recirculating valve.