![Cold Air Intakes Mythbusted [Turbo]](https://i3.ytimg.com/vi/gCi2yo4UqPI/maxresdefault.jpg)
Cold Air Intakes Mythbusted [Turbo]
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Date: 2020-07-07
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Comments and reviews: 8
Adam
1. You need to install the cold air intake correctly meaning either in a ram air setup or coming down towards the bottom of the bumper to get it away from the heat of the engine.
2. You also need to understand turbo makes a lot of heat so you need enough air to cool the area the fan does not mimic the same wind speed as driving.
3. You changed nothing within the ecu and this is probably the biggest mistake making this video completely inaccurate because cold air intake normally allows for much higher air flow but you didn't add fuel which causes a lean issue creating less horsepower and can damage the engine. This is why the cold air intake and no filter at all made the same numbers because you had more airflow and didn't add fuel.
4. Most of the time if you buy a legit cold air intake not eBay fakes the box will normally have a warning that states on the box one or two things. One have a professional install the part or two you need to have the car properly tuned before driving.
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1. You need to install the cold air intake correctly meaning either in a ram air setup or coming down towards the bottom of the bumper to get it away from the heat of the engine.
2. You also need to understand turbo makes a lot of heat so you need enough air to cool the area the fan does not mimic the same wind speed as driving.
3. You changed nothing within the ecu and this is probably the biggest mistake making this video completely inaccurate because cold air intake normally allows for much higher air flow but you didn't add fuel which causes a lean issue creating less horsepower and can damage the engine. This is why the cold air intake and no filter at all made the same numbers because you had more airflow and didn't add fuel.
4. Most of the time if you buy a legit cold air intake not eBay fakes the box will normally have a warning that states on the box one or two things. One have a professional install the part or two you need to have the car properly tuned before driving.
reply
Jonny
When you get two retard's that have no idea then you will get retard gains, that's why the only non retard in there was the guy running the dyno, that's why he pointed out the air temp being very steady now if you have had a car on a dyno in most cases the first two runs will be the best (straight power pull if no chances) after that the heat soaks into the motor and more so on a turbo motor as the turbo rear heat-soaks into the compressor side and piping. Now if you were to run the car with the pod or/both CAI first and did stock runs within 30 mins the time it would take two retard's to do the changeover then you will see a different outcome. Not going to go into ECU and its parameters, map and a/f ratios as I don't want these two retard's head's to blow a gasket.
In easy terms CAI and pod filters installed correctly are one of the best price to gain ratio there is.
reply
When you get two retard's that have no idea then you will get retard gains, that's why the only non retard in there was the guy running the dyno, that's why he pointed out the air temp being very steady now if you have had a car on a dyno in most cases the first two runs will be the best (straight power pull if no chances) after that the heat soaks into the motor and more so on a turbo motor as the turbo rear heat-soaks into the compressor side and piping. Now if you were to run the car with the pod or/both CAI first and did stock runs within 30 mins the time it would take two retard's to do the changeover then you will see a different outcome. Not going to go into ECU and its parameters, map and a/f ratios as I don't want these two retard's head's to blow a gasket.
In easy terms CAI and pod filters installed correctly are one of the best price to gain ratio there is.
reply
Adam
First and foremost, I do believe that you are correct. there is no way simply adding a CAI is going to give you 20% HP.
An engine is an air pump. The volume of air going in is directly proportionate to the volume coming out. So if you increase the intake flow (pod filter) capacity and decrease the air charge temp but don't free up the exhaust, your results will be exactly what you saw in the video. This is like trying to run a foot race breathing in normally and exhaling through a straw.
To get best results, you need to make the exhaust better too. Bolt on Exhaust + CAI + ECM Tune = Best gains (even then I doubt you'll hit 20% increase with most applications)
reply
First and foremost, I do believe that you are correct. there is no way simply adding a CAI is going to give you 20% HP.
An engine is an air pump. The volume of air going in is directly proportionate to the volume coming out. So if you increase the intake flow (pod filter) capacity and decrease the air charge temp but don't free up the exhaust, your results will be exactly what you saw in the video. This is like trying to run a foot race breathing in normally and exhaling through a straw.
To get best results, you need to make the exhaust better too. Bolt on Exhaust + CAI + ECM Tune = Best gains (even then I doubt you'll hit 20% increase with most applications)
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MPG
If you ram your intake air from the front end of the car you will make more power, especially if the weather outside is cold. The reason that there was not much increase with the cold air intake extended away from the car is because the car was not moving. In other words, a vehicle moving at 60mph in cold weather grabbing air from the front and ramming it into the air intake will make more power. The fact that we saw almost a 2 percent increase when the car was not moving evidences the fact that a cold air intake makes power, and that more power would be gained if the car was actually moving with a front-end ram air intake installed.
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If you ram your intake air from the front end of the car you will make more power, especially if the weather outside is cold. The reason that there was not much increase with the cold air intake extended away from the car is because the car was not moving. In other words, a vehicle moving at 60mph in cold weather grabbing air from the front and ramming it into the air intake will make more power. The fact that we saw almost a 2 percent increase when the car was not moving evidences the fact that a cold air intake makes power, and that more power would be gained if the car was actually moving with a front-end ram air intake installed.
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CheapFuneral
So my understanding in this is that the cars computer automatically tunes the airflow so that there is no real increase on it. Cold intakes on cars I've recently bought say that to see any gains it has to be done with a tune. If you had a tuned car and then you added a CAI and then tuned it again with that intake you should see some gains. Then I'm sure you will say something like well of course the company that makes the CAI will say that, but if you ask a tuner he will tell you the same thing. I have seen people post dyno sheets that show 10hp gains on some turbo economy cars.
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So my understanding in this is that the cars computer automatically tunes the airflow so that there is no real increase on it. Cold intakes on cars I've recently bought say that to see any gains it has to be done with a tune. If you had a tuned car and then you added a CAI and then tuned it again with that intake you should see some gains. Then I'm sure you will say something like well of course the company that makes the CAI will say that, but if you ask a tuner he will tell you the same thing. I have seen people post dyno sheets that show 10hp gains on some turbo economy cars.
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shawng7902
I was watching this video for reverse effects. I don't want to know if the cold air plumbing will give me more hp. Once you are over 4 digit wheel hp on the street who cares, what I wanted to know is whether plumbing in cold air intake and filter would cost a lot of power. It doesn't seem to hurt so I cant see the point of hanging my S480 out in the open to suck up dirt, gravel, and any small animals that happen to walk in front of the car! It won't look as cool as a 4 blender hanging off the motor but id really like to keep the blades intact and engine clean inside.
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I was watching this video for reverse effects. I don't want to know if the cold air plumbing will give me more hp. Once you are over 4 digit wheel hp on the street who cares, what I wanted to know is whether plumbing in cold air intake and filter would cost a lot of power. It doesn't seem to hurt so I cant see the point of hanging my S480 out in the open to suck up dirt, gravel, and any small animals that happen to walk in front of the car! It won't look as cool as a 4 blender hanging off the motor but id really like to keep the blades intact and engine clean inside.
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HonkaiNoobIndex
Adding a CAI alone isnt going to do anything, but combined with other mods its definitely worth the money. Bore your TB, injectors, rail, high flow fuel pump, EGR delete, vacuum delete, exhaust, cams, crank, flywheel, ECU, etc. Then take the CAI off and put the original box back on, see how much power you lose after your ECU is tuned for a CAI and you use a stock box. CAI isnt going to do anything alone except make it sound good. More times than not it will just run the same unless you put the work into having a fast car.
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Adding a CAI alone isnt going to do anything, but combined with other mods its definitely worth the money. Bore your TB, injectors, rail, high flow fuel pump, EGR delete, vacuum delete, exhaust, cams, crank, flywheel, ECU, etc. Then take the CAI off and put the original box back on, see how much power you lose after your ECU is tuned for a CAI and you use a stock box. CAI isnt going to do anything alone except make it sound good. More times than not it will just run the same unless you put the work into having a fast car.
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Missouri
5: 53 is in my opinion one of the most important notes of this test for anyone worried about heating up the air going into their engine. The fact that no matter the configuration your inter cooler is still doing its job is worth noting. While you don't see performance gains with the same tune all around I still have to wonder if the improved air flow helps increase your hp after a performance tune compared to stock. (just noticed the last comment on this video was 3 years ago. oh well)
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5: 53 is in my opinion one of the most important notes of this test for anyone worried about heating up the air going into their engine. The fact that no matter the configuration your inter cooler is still doing its job is worth noting. While you don't see performance gains with the same tune all around I still have to wonder if the improved air flow helps increase your hp after a performance tune compared to stock. (just noticed the last comment on this video was 3 years ago. oh well)
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