Intercooler for CAI

pramodkumar · 20th May 2011, 11:34

Guys,

I was toying with the idea of creating an CAI with an intercooler connected after the filter. i have a green cotton wind filter and an intercooler from a indica vista to be fitted on a lancer, your suggestions please.

Pramod

Neil.Bhujbal · 20th May 2011, 11:51

The compressed air which passes through the inter-cooler in a turbocharged vehicle is pretty hot & the air flowing through the inter-cooler helps reducing its temperature. In your case (NA car with inter-cooler in between air filter & throttle body) - the temperature of air flowing through the inter-cooler will be almost equal to that of the air blowing over the inter-cooler & hence wont help. You will actually end up loosing power because of bad Air Intake system.

pramodkumar · 20th May 2011, 12:00

Quote:

Originally Posted by Neil.Bhujbal

The compressed air which passes through the inter-cooler in a turbocharged vehicle is pretty hot & the air flowing through the inter-cooler helps reducing its temperature. In your case (NA car with inter-cooler in between air filter & throttle body) -.

Exactly, this is how it works

Quote:

Originally Posted by Neil.Bhujbal

the temperature of air flowing through the inter-cooler will be almost equal to that of the air blowing over the inter-cooler & hence wont help. You will actually end up loosing power because of bad Air Intake system.

this is not correct, technically it should work in the absence of turbo as well. As per you what should stop it from reducing the temperature of the air sucked through it.

Pramod

Neil.Bhujbal · 20th May 2011, 12:23

Quote:

Originally Posted by pramodkumar

Exactly, this is how it works

this is not correct, technically it should work in the absence of turbo as well. As per you what should stop it from reducing the temperature of the air sucked through it.

Pramod

The air passing through the inter-cooler & the air blowing over the inter-cooler when of the same temperature wont make a noticeable difference to each other. Even if you succeed in blowing air over the inter-cooler which is a lot more cooler than the air flowing through the inter-cooler, the air intake dynamics will be so disturbed that you will still end up loosing power.

pramodkumar · 20th May 2011, 12:31

Quote:

Originally Posted by Neil.Bhujbal

The air passing through the inter-cooler & the air blowing over the inter-cooler when of the same temperature wont make a noticeable difference to each other. Even if you succeed in blowing air over the inter-cooler which is a lot more cooler than the air flowing through the inter-cooler, the air intake dynamics will be so disturbed that you will still end up loosing power.

Again, The air blowing through the intercooler will be cold as the surface area is larger due to the fin design of the intercooler. it will any how decipate heat and become colder, by theory we can also design to spray a jet of of water to cool it off substantially.

Pramod

Neil.Bhujbal · 20th May 2011, 12:53

Ok, even if you reduce the air intake temperature using a inter-cooler & water spraying it,etc how much power is it going to bump up ? 1 bhp ? And i still say you will end up loosing power because of the bad air flow dynamics.Remember in a turbocharged car with an inter-cooler the air is force fed. For a NA car with a inter-cooler it will be so difficult for her to breath.

The Wolf · 20th May 2011, 13:47

Agree with you Neil...

Simple terms: Air velocity drop due to the obstructing intercooler in the path of the induction system will affect the performance at medium to high rpms severely. Remember in an NA engine the air sucked in a co-relative to the suction quotient of the piston inside the cylinder where as in a turbo charged engine its directly proportional to the boost pressure which can be higher than 1bar (14.5psi) which is our atmospheric pressure at sea level.

Pramod, if this technique you are contemplating could give out more power or efficiency in an NA car trust that we would've already seen it in several dozen cars. Keep your thinking cap on, may be you will find a better way of extracting residual gains...that something which has never been tried

Sprucegoose · 20th May 2011, 13:54

Don't do it.
It will cause too much of a restriction and will adversely affect performance...

Some website had referred to an inter cooler setup without a turbo as an inter fooler.

Jaggu · 20th May 2011, 14:22

Inter-cooler in the intake of a naturally aspirated car = restriction to air flow. So technically also it will not work, unless you put a blower to charge the air flow

dhanushs · 20th May 2011, 15:48

CAI = Cold Air Intake, and you still want an intercooler?

Intercooler is used in Forced induction systems, do not fit it just because you have one lying around.

BuRnT RuBbEr · 20th May 2011, 16:10

you will essentially be blocking the airflow to the engine by putting an inter cooler without a turbo.

ilangop · 21st May 2011, 09:02

Quote:

Originally Posted by BuRnT RuBbEr

you will essentially be blocking the airflow to the engine by putting an inter cooler without a turbo.

I im the same lines, Intercooler will only give some additional pressure drop which you dont want to happen.

pramodkumar · 21st May 2011, 20:56

Ok guys,

Plan shelved as of now, i will hold it till i get a suitable turbo to go with it.

Mods, kindly lock the thread, i will intimate you whan it needs to be reopened for discussions.

Pramod

i<3turbo · 23rd May 2011, 10:49

i guess it doesnt rain where your from.

20th May 2011, 11:34	#1
pramodkumar Senior - BHPian Join Date: Mar 2006 Location: Gods own country Posts: 2,306 Thanked: 2,268 Times View My Garage	Intercooler for CAI Guys, I was toying with the idea of creating an CAI with an intercooler connected after the filter. i have a green cotton wind filter and an intercooler from a indica vista to be fitted on a lancer, your suggestions please. Pramod
	() Thanks

20th May 2011, 11:51	#2
Neil.Bhujbal BHPian Join Date: Nov 2009 Location: Pune Posts: 192 Thanked: 95 Times	Re: Intercooler for CAI The compressed air which passes through the inter-cooler in a turbocharged vehicle is pretty hot & the air flowing through the inter-cooler helps reducing its temperature. In your case (NA car with inter-cooler in between air filter & throttle body) - the temperature of air flowing through the inter-cooler will be almost equal to that of the air blowing over the inter-cooler & hence wont help. You will actually end up loosing power because of bad Air Intake system. Last edited by Neil.Bhujbal : 20th May 2011 at 11:56.
	() Thanks

20th May 2011, 12:53	#6
Neil.Bhujbal BHPian Join Date: Nov 2009 Location: Pune Posts: 192 Thanked: 95 Times	Re: Intercooler for CAI Ok, even if you reduce the air intake temperature using a inter-cooler & water spraying it,etc how much power is it going to bump up ? 1 bhp ? And i still say you will end up loosing power because of the bad air flow dynamics.Remember in a turbocharged car with an inter-cooler the air is force fed. For a NA car with a inter-cooler it will be so difficult for her to breath.
	() Thanks

20th May 2011, 13:47	#7
The Wolf Senior - BHPian Join Date: Jan 2005 Location: Bangalore Posts: 1,119 Thanked: 76 Times	Re: Intercooler for CAI Agree with you Neil... Simple terms: Air velocity drop due to the obstructing intercooler in the path of the induction system will affect the performance at medium to high rpms severely. Remember in an NA engine the air sucked in a co-relative to the suction quotient of the piston inside the cylinder where as in a turbo charged engine its directly proportional to the boost pressure which can be higher than 1bar (14.5psi) which is our atmospheric pressure at sea level. Pramod, if this technique you are contemplating could give out more power or efficiency in an NA car trust that we would've already seen it in several dozen cars. Keep your thinking cap on, may be you will find a better way of extracting residual gains...that something which has never been tried Last edited by The Wolf : 20th May 2011 at 13:56.
	() Thanks

20th May 2011, 13:54	#8
Sprucegoose BHPian Join Date: Jan 2006 Location: Mumbai Posts: 313 Thanked: 45 Times View My Garage	Re: Intercooler for CAI Don't do it. It will cause too much of a restriction and will adversely affect performance... Some website had referred to an inter cooler setup without a turbo as an inter fooler.
	() Thanks

20th May 2011, 14:22	#9
Jaggu Team-BHP Support Join Date: May 2004 Location: Bangalore Posts: 20,377 Thanked: 17,316 Times	Re: Intercooler for CAI Inter-cooler in the intake of a naturally aspirated car = restriction to air flow. So technically also it will not work, unless you put a blower to charge the air flow
	() Thanks

20th May 2011, 15:48	#10
dhanushs Distinguished - BHPian Join Date: Oct 2009 Location: Chennai Posts: 4,448 Thanked: 11,511 Times	Re: Intercooler for CAI CAI = Cold Air Intake, and you still want an intercooler? Intercooler is used in Forced induction systems, do not fit it just because you have one lying around.
	() Thanks

20th May 2011, 16:10	#11
BuRnT RuBbEr BHPian Join Date: May 2005 Location: DL 1 Posts: 367 Thanked: 13 Times	Re: Intercooler for CAI you will essentially be blocking the airflow to the engine by putting an inter cooler without a turbo.
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21st May 2011, 20:56	#13
pramodkumar Senior - BHPian Join Date: Mar 2006 Location: Gods own country Posts: 2,306 Thanked: 2,268 Times View My Garage	Re: Intercooler for CAI Ok guys, Plan shelved as of now, i will hold it till i get a suitable turbo to go with it. Mods, kindly lock the thread, i will intimate you whan it needs to be reopened for discussions. Pramod
	() Thanks

23rd May 2011, 10:49	#14
i<3turbo BHPian Join Date: Dec 2010 Location: Mumbai/Philadel Posts: 406 Thanked: 274 Times	Re: Intercooler for CAI i guess it doesnt rain where your from.
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