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Cold air intake + turbo (stock config just change filter) no gain, possibly lower.
Reason, Cold air in, heats up by turbo so no point, bigger intercooler is the way to go.
I’m pushing 170 wheel horsepower more than stock with the stock air box, cold air did absolutely nothing.
Once you run into air FLOW issues is there a point, usually when the turbo intake switches from 3″ in to 4″ in is it time to switch.as for N/A engines, then you start talking, I’m pushing 10 whp more in -26 than +20 and that’s only because of the cold air, you can use a dremel and open up the ducting and optimize it and keep the stock look for the cops 😉
cold air intakes are generally overrated beyond reason and personally I only like them as they are not made to fit one model, can be placed where you want it, takes little space.
Perfect for engine conversions where the stock ducting will not work.Hope it gave you much info regarding this topi
Anytime you ADD air or fuel to the engine by any means it will gain hp. Depending on what you do it might not be enough HP for you t notice, but it will gain. Anyone that knows how engines work will agree. If you put a cold air in, make sure you put it low enough that it will actually get some cold air, Most people i find just slap a cold air on and leave it level with the engine and dont bother trying to seperate it from the engine. if you put a cold air in and leave it at level or above the engine, it becomes HOT air intake which then wont make any HP.. If you make it in a box by its self, and or lower where it can get more cold air, then you will gain HP. I’ve seen this mistake a million times, then ppl come and say well why isnt my cold air intake working.
Anytime you ADD air or fuel to the engine by any means it will gain hp. Depending on what you do it might not be enough HP for you t notice, but it will gain. Anyone that knows how engines work will agree. If you put a cold air in, make sure you put it low enough that it will actually get some cold air, Most people i find just slap a cold air on and leave it level with the engine and dont bother trying to seperate it from the engine. if you put a cold air in and leave it at level or above the engine, it becomes HOT air intake which then wont make any HP.. If you make it in a box by its self, and or lower where it can get more cold air, then you will gain HP. I’ve seen this mistake a million times, then ppl come and say well why isnt my cold air intake working.
I added a high flow, reusable stock replacement air filter. I then got some cheap insulation wrap and covered the plumbing from the air box to the throttle body. No way for me to have numbers, but it felt like there was a little something more.
A stock air system is already designed to bring in air from outside the engine bay. This is going to have cooler air than most of the $300 CAI kits I’ve seen that will suck in the hotter air from the engine bay.
I added a high flow, reusable stock replacement air filter. I then got some cheap insulation wrap and covered the plumbing from the air box to the throttle body. No way for me to have numbers, but it felt like there was a little something more.
A stock air system is already designed to bring in air from outside the engine bay. This is going to have cooler air than most of the $300 CAI kits I’ve seen that will suck in the hotter air from the engine bay.
Make sure your intake is not too near to the ground. If so, don’t drive in the water. You can explode your engine. :sick: :sick: :sick:
[video]http://www.youtube.com/watch?v=Yehz2gUnNe0[/video]
Make sure your intake is not too near to the ground. If so, don’t drive in the water. You can explode your engine. :sick: :sick: :sick:
[video]http://www.youtube.com/watch?v=Yehz2gUnNe0[/video]
AEM makes water valves and socks to prevent that.
The rain sock stops a considerable amount of mist, and if it ever submerges or sucks in to much watter the valve will close from suction and choke the engine… Not a good thing, but better than the engine sucking it watter…
I want add that sometimes you will see a big difference over the stock intake… One example is a late model cherokee, they’re stock cold air intakes are so restrictive that it really opens the motor up even if it is just a warm air kit… Same with my zetec on my foci Although not nearly as much.. Mustangs you’d see less difference because they are designed for power…
You have to take into consideration restriction vs “cold air”…
AEM makes water valves and socks to prevent that.
The rain sock stops a considerable amount of mist, and if it ever submerges or sucks in to much watter the valve will close from suction and choke the engine… Not a good thing, but better than the engine sucking it watter…
I want add that sometimes you will see a big difference over the stock intake… One example is a late model cherokee, they’re stock cold air intakes are so restrictive that it really opens the motor up even if it is just a warm air kit… Same with my zetec on my foci Although not nearly as much.. Mustangs you’d see less difference because they are designed for power…
You have to take into consideration restriction vs “cold air”…
the issue is simple,
a cold air intake CAN increase performance on some vehicles depending on there current air intake set up, for that Nissan Skyline, no it will not really… why? ITS TURBOCHARGED AND INTERCOOLED, cold air intake would be pointless, the air coming in is going too be heated and compressed buy the turbo, then cooled too a certain temperature buy the intercooler, and since the current stock air intake is somewhat straight forward… cold air intake will limit performance gains greatly. on my 1998 Buick Regal LS with a naturally Aspirated 3800 L36 series II engine, there is two abrupt 90 degree bends leading too a intake box with baffles in it, (some of which i have already removed, this causes turbulence which causes restriction! intake temperatures on hot days exceed 100 degrees i have checked with a scan tool, tell me my car will not benefit from a cold air intake that is correctly installed once the PCM adjusts for the increased air flow and increased air dencity…
secondly, to just slap a cold air intake or Conical filter and expect instant performance gains is silly, the PCM must adjust and recognize the increase in airflow in a closed loop PCM operation, this can take as much as 15-45 minutes of driving for the PCM too adjust the engines air fuel mixture too compencate, therefore you may lose a little HP at first, then when the PCM adjust it may gain,
the issue is simple,
a cold air intake CAN increase performance on some vehicles depending on there current air intake set up, for that Nissan Skyline, no it will not really… why? ITS TURBOCHARGED AND INTERCOOLED, cold air intake would be pointless, the air coming in is going too be heated and compressed buy the turbo, then cooled too a certain temperature buy the intercooler, and since the current stock air intake is somewhat straight forward… cold air intake will limit performance gains greatly. on my 1998 Buick Regal LS with a naturally Aspirated 3800 L36 series II engine, there is two abrupt 90 degree bends leading too a intake box with baffles in it, (some of which i have already removed, this causes turbulence which causes restriction! intake temperatures on hot days exceed 100 degrees i have checked with a scan tool, tell me my car will not benefit from a cold air intake that is correctly installed once the PCM adjusts for the increased air flow and increased air dencity…
secondly, to just slap a cold air intake or Conical filter and expect instant performance gains is silly, the PCM must adjust and recognize the increase in airflow in a closed loop PCM operation, this can take as much as 15-45 minutes of driving for the PCM too adjust the engines air fuel mixture too compencate, therefore you may lose a little HP at first, then when the PCM adjust it may gain,
[quote=”Plasmide56″ post=61320]Make sure your intake is not too near to the ground. If so, don’t drive in the water. You can explode your engine. :sick: :sick: :sick:
[video]http://www.youtube.com/watch?v=Yehz2gUnNe0[/video][/quote]
just got done watching this episode… this is why you have too be carful how you route your intake.
[quote=”Plasmide56″ post=61320]Make sure your intake is not too near to the ground. If so, don’t drive in the water. You can explode your engine. :sick: :sick: :sick:
[video]http://www.youtube.com/watch?v=Yehz2gUnNe0[/video][/quote]
just got done watching this episode… this is why you have too be carful how you route your intake.
Everything I have studied would say IF you have add a cold air intake, you also need to make the exhaust more free-flowing and then you are going to have to re-program the computer in the car (ie custom tune) to take advantage of these changes. Have I made both changes? Yes. Did I reprogram the computer? Well, not yet. But I probably should 🙂
Everything I have studied would say IF you have add a cold air intake, you also need to make the exhaust more free-flowing and then you are going to have to re-program the computer in the car (ie custom tune) to take advantage of these changes. Have I made both changes? Yes. Did I reprogram the computer? Well, not yet. But I probably should 🙂
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