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It's only the beginning, but wanted to share my intake HPS CARid
Next:
Waiting for Stillen Front Splitter and Rear Diffuser to be delivered.
I've never understood how ingesting hot underhood air can enhance engine performance over ingesting cooler outside air. Also, it seems that the metal mass air doojie would absorb even more engine heat. I'm sure someone will explain.
They might not do a whole ton of good, but they certainly aren't hurting anything ... if you like/want them, use them. And you're certainly not an idiot (as has been inferred) for doing so.
I actually run a Jim Wolf SRI on my 4th Gen and have experienced and measured just what the narrative and data provided below shows.
Just a couple of tid-bits with some relevant information and data:
Funny how most of the people on here bashing other for using these , are also the ones who have no clue how to work on their own cars and pay other people to fix them.
I am just curious, is there a reason you went with HPS instead of Stillen? This one looks like it would block any cold air from the intake, the Stillen Intake connects to the stock fresh air inlet.
Funny how most of the people on here bashing other for using these , are also the ones who have no clue how to work on their own cars and pay other people to fix them.
They get all the knowledge from YouTube...lol..
I don't see anyone here bashing but rather just having a spirited discussion about what these type of mods accomplish? Some of us are asking questions about what is better and some asking if we are really gaining anything at all. That helps us decide if it is worth the time and costs.
I don't see anyone here bashing but rather just having a spirited discussion about what these type of mods accomplish? Some of us are asking questions about what is better and some asking if we are really gaining anything at all. That helps us decide if it is worth the time and costs.
All performance part are expensive... I just spent $1500 on my Motordyne… I know it adds power and I didn't even need to get advice from the peanut gallery here...lol
*Person posts on enthusiast forum*
"Look guys who also drive this kind of car I am enthusiast for! I have made a modification to my car in my personal taste! I am love it and wish to share it with you!"
"You are idiot. That does nothing. You have done a waste of money."
At the end of day, it is your car, your taste/preference, and your money. Enjoy your intake. I am like.
Last edited by Tony Two-Tone; May 2, 2019 at 02:43 PM.
It's really not as simple as some people make it out to be. For example, an aftermarket intake may reduce torque at lower revs, but increase horsepower at higher RPM. Or the performance gains/losses may depend on the ambient air temperature vs. the under-hood temperature. Or it may harm performance in combination with the stock exhaust, but increase performance with an aftermarket exhaust. Or some combination of the above along with other variables.
I am just curious, is there a reason you went with HPS instead of Stillen? This one looks like it would block any cold air from the intake, the Stillen Intake connects to the stock fresh air inlet.
At the time of purchasing, the stillen and hps looked similar. After I purchased and installed the HPS I realized that the Stillen, had an adapter to the factory cold air. So I went to RMA this one and it has been a hassle so what I did was, re-added some of the factory cold air and rotated the heat shield. Lmk your thoughts.
*Person posts on enthusiast forum*
"Look guys who also drive this kind of car I am enthusiast for! I have made a modification to my car in my personal taste! I am love it and wish to share it with you!"
"You are idiot. That does nothing. You have done a waste of money."
At the end of day, it is your car, your taste/preference, and your money. Enjoy your intake. I am like.
At the time of purchasing, the stillen and hps looked similar. After I purchased and installed the HPS I realized that the Stillen, had an adapter to the factory cold air. So I went to RMA this one and it has been a hassle so what I did was, re-added some of the factory cold air and rotated the heat shield. Lmk your thoughts.
Everyone should take note that the OP retained the factory air inlet tube.
Notwithstanding the questions and confusion that surrounds the use of this upgrade, this little diddy changes all of the math as far as engine compartment and therefore intake air temps.
Good move ... and I've got the air filter air temp numbers to prove it ... at least when traveling at speeds of 6 + mph.
Everyone should take note that the OP retained the factory air inlet tube.
Notwithstanding the questions and confusion that surrounds the use of this upgrade, this little diddy changes all of the math as far as engine compartment and therefore intake air temps.
Good move ... and I've got the air filter air temp numbers to prove it ... at least when traveling at speeds of 6 + mph.
Got myself an AEM, though.
One suggestion, is getting an (AEM, or similar) dry filter water-proof(ish - because, with enough moisture, it could settle on the) net. Still, better than none at all. IMO.
I noticed that by removing the factory box, water splashes from any direction, with the factory tube now pointing directly at the filter, may shoot some water to the filter during heavy rains. But yeah, only on heavy rains.
Got myself an AEM, though.
One suggestion, is getting an (AEM, or similar) dry filter water-proof(ish - because, with enough moisture, it could settle on the) net. Still, better than none at all. IMO.
I noticed that by removing the factory box, water splashes from any direction, with the factory tube now pointing directly at the filter, may shoot some water to the filter during heavy rains. But yeah, only on heavy rains.
Hm good point. I have the bottom portion of the factory air box.
I know here in AZ, any other weather but hot or hotter is rare, lol, well maybe during monsoon season.
I thought about re-adding the bottom portion of the box, what do you think?
All performance part are expensive... I just spent $1500 on my Motordyne… I know it adds power and I didn't even need to get advice from the peanut gallery here...lol
At the time of purchasing, the stillen and hps looked similar. After I purchased and installed the HPS I realized that the Stillen, had an adapter to the factory cold air. So I went to RMA this one and it has been a hassle so what I did was, re-added some of the factory cold air and rotated the heat shield. Lmk your thoughts.
yea good move otherwise you're just sucking in superheated air. I was about to ask why you didn't use one of the systems that use part of the original intake and runs into a heat shield.
So I have a question for you and then one for those who have dyno experience
1.. are you going to add a heat shield or heat wall between the motor and the filter?
2. and for the pros - These cold air intakes remove the Intake resonator and do without. They have a specific job and help to increase performance. does the performance outweigh removing the Intake Resonator? or should someone find a way to add it?
yea good move otherwise you're just sucking in superheated air. I was about to ask why you didn't use one of the systems that use part of the original intake and runs into a heat shield.
So I have a question for you and then one for those who have dyno experience
1.. are you going to add a heat shield or heat wall between the motor and the filter?
So, I do plan on putting a fire wall between engine and filter. I’m up on the fence with returning this one and getting the Stillen. I may come up with my own “firewall,” to try and trap more cold air instead of heat.
I thought about re-adding the bottom portion of the box, what do you think?
Never really thought about putting the lower box back.
Can’t picture it being there, and its purpose.
I have seen Stillen (polyurethane), AEM (aluminum), and a generic (for 7th gen?? Which interferes with shift linkage) enclosures and they look like good barrier from the engine from some heat.
Never really thought about putting the lower box back.
Can’t picture it being there, and its purpose.
I have seen Stillen (polyurethane), AEM (aluminum), and a generic (for 7th gen?? Which interferes with shift linkage) enclosures and they look like good barrier from the engine from some heat.
So, I do plan on putting a fire wall between engine and filter. I’m up on the fence with returning this one and getting the Stillen. I may come up with my own “firewall,” to try and trap more cold air instead of heat.
Seems like a lot of money and a lot of work to basically achieve less then what the factory box and a K&N drop in filter can achieve without any excessive modification. Reality is, you will never isolated the same cool air you get from the ducted factory system with an open system like this. You may thwart off a little of the superheated stuff with a fabricated wall, but it's still much warmer air then what would be coming in from the sealed front duct...
I guess the point to all of this, you can call it a high flow intake, but to call it a Cold Air Intake is 100% false advertisement. I get it, some people here have issue with people pointing out these flaws but that's exactly what these forums are for, discussions...
Here is a Temperature test proves that the K&N Intake pulls in cooler air, it isn't a huge difference (only a degree or two) but it is indeed cooler than a stock airbox. The thing I would like to point out is that the K&N Intake was not hotter as most people claim......
Last edited by rhythm302; Jun 21, 2019 at 08:06 AM.
Here is a Temperature test proves that the K&N Intake pulls in cooler air, it isn't a huge difference but it is indeed cooler than a stock airbox.
That's an interesting test, 1 thing different here is the KnN is shrouded better. I wonder if because of how close that factory Airbox is to the heat source of the motor if it is actually collecting heat in the plastic, thus raising the temp of the air going through. So in theory the air is cooler, to start, but the box is heating it up before it get's to wherever he had the sensor. Very interesting results indeed.
As an engineer, I'd like to point out that these discussions and that video are missing a significant portion of the equation. The ambient air will flow through the engine compartment as soon as you start moving, so the effects of the SRI air temp will negligible at 60+ mph, especially with a heat shield to isolate and absorb engine radiation. This is also why you can't directly measure the HP gain with a dyno, as your car is stationary. Less restriction, greater tubing diameter, and more filter surface area should provide more HP vs a stock intake or a K&N drop-in filter, if the MAF and ECU properly sense and regulate the fuel injection for the increased air.
Bottom Line: Stock < K&N Filter < SRI < CAI < Ram Air SRI
Good video, although he keeps calling a short-ram intake a cold air intake. Also, if that was the actual design for that car, sitting it on top of the engine bay was a TERRIBLE design!
Here is a Temperature test proves that the K&N Intake pulls in cooler air, it isn't a huge difference (only a degree or two) but it is indeed cooler than a stock airbox. The thing I would like to point out is that the K&N Intake was not hotter as most people claim......
Man you can't compare a damn Jeep to your maxima, the airbox are really not the same. On the Maxima, i tested two intakes and none will get cooler air than the stock airbox, even at 60 mph.
Last edited by kasdepwel; Jun 21, 2019 at 03:04 PM.
As an engineer, I'd like to point out that these discussions and that video are missing a significant portion of the equation. The ambient air will flow through the engine compartment as soon as you start moving, so the effects of the SRI air temp will negligible at 60+ mph, especially with a heat shield to isolate and absorb engine radiation. This is also why you can't directly measure the HP gain with a dyno, as your car is stationary. Less restriction, greater tubing diameter, and more filter surface area should provide more HP vs a stock intake or a K&N drop-in filter, if the MAF and ECU properly sense and regulate the fuel injection for the increased air.
Bottom Line: Stock < K&N Filter < SRI < CAI < Ram Air SRI
The stock airbox on my max will get reading of about 2 degrees cooler than ambiant reading at 60 mph. On the other hand, the Takeda i had last year would never get within 10 degrees of the ambiant temp.
The stock airbox on my max will get reading of about 2 degrees cooler than ambiant reading at 60 mph. On the other hand, the Takeda i had last year would never get within 10 degrees of the ambiant temp.
The laws of thermodynamics says you have some faulty temperature sensors, as you can't be cooler than ambient air, unless you are using nitrogen or a refrigerant chiller system.
The laws of thermodynamics says you have some faulty temperature sensors, as you can't be cooler than ambient air, unless you are using nitrogen or a refrigerant chiller system.
The laws of thermodynamics says you have some faulty temperature sensors, as you can't be cooler than ambient air, unless you are using nitrogen or a refrigerant chiller system.
Curious. In what field of engineering is your degree?
The laws of thermodynamics says you have some faulty temperature sensors, as you can't be cooler than ambient air, unless you are using nitrogen or a refrigerant chiller system.
It's cooler because of the pressure drop through the intake. On a naturally asperated engine, intake pressure will always be less than ambient, and assuming no heating of intake air occurs, intake air temperature will always be less than ambient.
Naturally aspirated cars benefit from short ram intakes. Period. Im not talking about cheesy universal fit eBay stuff. Name brand units like K&N, AEM, Stillen etc.
Dynos do not lie.
The horsepower gains are usually only found in the upper RPM range but isnt that when you want the extra power ?
Adding 10HP to a 300HP motor is not going to be something you feel.
I hate seeing all of these naysayers bashing folks who install new intakes. If you dont like it fine, but dont belittle people who do.
Seems that in these days everyone likes to point to Youtube videos to validate their arguments so in light of that trend I offer the following...........................
New Intake Installed
CAI does add power
