MINI2

falconetti · Mar 29th, 2006, 05:05 PM

hi friends, I want to ınformation your experience

what is the diffrence of cold air intake and normal air intake?
and which one is the best?

dave_cooper_s · Mar 29th, 2006, 07:16 PM

There will be lots of names for which is 'best' including Alta, GTT etc

I am looking into getting the GTT myself (look in sponsor directory for more info). The difference in having one of these aftermarket filters is that they are designed to be less restrictive than the standard items and so can flow more air into the engine, therefor more power - this also means they make more noise.

As for actual power gains, I am unsure but someone will be able to help. With previous cars I have always felt improved throttle response.

Dave

minigolf · Mar 29th, 2006, 08:28 PM

I have an ALTA CAI and there was a noticeable improvement in throttle response after replacing my OEM air intake with the ALTA. This was also quantified on the dyno which returned a very impressive 10kW+ atw gain. Now I'm a bit dubious about that figure myself, but what isn't deniable is the gain in top end strength as the intake is able to draw in more air at higher revs. From 4000rpm and higher it's a new car. And the sound is sensational!

:

dave_cooper_s · Mar 29th, 2006, 09:27 PM

minigolf, does the new filter pretty much make the supercharger whine all the time? rather than just when your putting the foot down?

Eds · Mar 30th, 2006, 03:46 AM

This was my first mod.= Ultrik CAI. Throtlle response improvement is very minimal but noticed more above 4K. The sound is also louder but music to my ears. I made a 2.5 inches diameter hole on the back plastic panel to get more fresh air.

St00ge · Mar 30th, 2006, 07:20 AM

Quote: Originally Posted by dave_cooper_s

minigolf, does the new filter pretty much make the supercharger whine all the time? rather than just when your putting the foot down?

no...loudness depends on throttle position. A little throttle will give you a high pitched whistle, and WOT will give you all whine.

Richard Crofts · Mar 30th, 2006, 08:43 AM

A cold air intake is usually enclosed in a box (in the case of ALta and GTT this box is either metal or lined with metal) which shields the cone filter from warm air/heat off the engine or intercooler (if its an S). The shielded box usually has a direct cold air feed (a pipe from the front of the engine bay) that sucks in cold air from outside and straight into the box.

A noirmal intake is either like the stock one in a plastic box with a panel filter or it is an open cone that just sits inside the engine bay with no heat sheilding and usually no direct cold air feed onto the cone filter.

A cold air intake generally gives better power as cold air is denser than warm air and so the bang inside the cylinder of the engine is bigger and more efficient.

Richard Crofts · Mar 30th, 2006, 08:51 AM

PS. It is far easier to find good quality cold air intakes for the Cooper S than the Cooper. The reason is that the engine bay of the S is much warmer (caused by having a supercharger and intercooler wedged under the bonnet and running at far higher temps than a normal aspiration engine) so heat has a very big effect on the S. Most CAIs are made for the S but there are a few (IMO less well developed) versions for the Cooper and ONE.

See the pics below. One is the Alta CAI (this is designed for the Cooper S) and the other is a picture of 'normal' performance filter intake system, like many designed for the Cooper and ONE. Note the metal box and the direct cold feed into the air box (black plastic pipe) on the Alta. The Cooper K&N filter doesn't have this but people have modded thiers to ensure better cold ar feed to the filter, so that pobably helps.

-=cHiLli=- · Mar 30th, 2006, 10:42 AM

Quick sub question:

How do they affect insurance & warranty?

i++(

)

Masada · Apr 1st, 2006, 12:37 PM

Don't see how they would....I got a Dinan CAI through the dealership installed so in that case I am ok. I don't see what difference other, similar kits would have on warranty. The bottom line is, ask the guys at the service dept.

roland2003 · Apr 2nd, 2006, 09:01 AM

Ultimately (apart from filtering) the intake design has one function. To allow the maximum mass of air (oxygen is the bit we want) through. It is a combination of 2 criteria that effect this goal.
1) Minimum possible pressure drop (partial vacuum) through it.- The higher the pressure (ie nearer ambient ) the better .
2) Colder intake air temp. Quite simply a 'bucket full of cold air has more air (by weight) in it than a bucket full of warm air'. -As 21% of 'each bucket 'is oxygen ,we get more oxygen in for a given volume.
Anyone can chuck more fuel ,its getting air in thats the difficult bit.
Regards Roland GT Tuning

-Check out GTT 'Cold Ram Induction Kit on our website.

SamHarrison · Apr 5th, 2006, 10:12 AM

somehting to note if you have the Cooper is that if you replace the air box you lose the air feed from the front of the engine and all the air that is being sucked in via the cone filter is warm.
I have the K&N 57i Induction kit for my MC and i had to get some flexi tubing to re instate some form of cold air feed from the inlet "mouth" to where the filter site in the empty space once filled with the air box.

sam

falconetti · Apr 7th, 2006, 08:21 PM

sam have you got photo your this topic about your car

Restyle · Apr 7th, 2006, 08:54 PM

Quote: Originally Posted by i++

Quick sub question:
How do they affect insurance & warranty?

Found it Very hard to get anyone to insure me after I`d had Just the JCW Air Filter box fitted by my Dealer

Warranty of course not a problem if it was dealer fitted

Bilbo Baggins · Apr 9th, 2006, 12:14 AM

Technically the stock MCS air intake filter system is a "Cold Air Intake". It is a sealed intake, no possibilities of hot air intrusion. It draws cold air from 2 high pressure areas on the car. The first is at the grill, the second is from the cowl vent. The biggest impediment to the stock system is their choice of panel filter.

I installed a new foam panel filter and it makes 25 additional hp.

not !

jamiep · Apr 9th, 2006, 12:43 PM

Quote: Originally Posted by i++

Quick sub question:

How do they affect insurance & warranty?

i++(

)

All modifications have to be reported to your insurer or they can say the policy is invalid. Depending on the company an air filter will cost between £0 and £100ish extra on your premium, if in doubt ask first, fit later

SamHarrison · Apr 10th, 2006, 01:28 PM

Quote: Originally Posted by falconetti

sam have you got photo your this topic about your car

not yet..but i shall try and sort that out for you this evening..ish

sam

SamHarrison · Apr 13th, 2006, 09:53 AM

Image as promised..if not a little late

Mar 29th, 2006, 05:05 PM	#1
falconetti MINI2 Newbie Join Date: Mar 2006 Local Time: 06:08 PM Posts: 6 Offline	difference cold air intake and normal air intake filter hi friends, I want to ınformation your experience what is the diffrence of cold air intake and normal air intake? and which one is the best?

Mar 29th, 2006, 08:28 PM	#3 (permalink)
minigolf Blue is the colour! Join Date: Jul 2003 Location: Canberra, Australia Local Time: 04:08 AM Posts: 14,033 Offline	I have an ALTA CAI and there was a noticeable improvement in throttle response after replacing my OEM air intake with the ALTA. This was also quantified on the dyno which returned a very impressive 10kW+ atw gain. Now I'm a bit dubious about that figure myself, but what isn't deniable is the gain in top end strength as the intake is able to draw in more air at higher revs. From 4000rpm and higher it's a new car. And the sound is sensational! : Sabine Schmitz: Fear disturbs your concentration.

Mar 30th, 2006, 07:20 AM	#6 (permalink)
St00ge 8/10 on the Stoogometer Join Date: Aug 2005 Location: Melbourne Local Time: 04:08 AM Posts: 2,864 Offline	Quote: Originally Posted by dave_cooper_s minigolf, does the new filter pretty much make the supercharger whine all the time? rather than just when your putting the foot down? no...loudness depends on throttle position. A little throttle will give you a high pitched whistle, and WOT will give you all whine. Black MCS

Mar 30th, 2006, 08:51 AM	#8 (permalink)
Richard Crofts THE STICK Join Date: Feb 2003 Location: Worcestershire WR15 Local Time: 07:08 PM Posts: 3,001 Offline	PS. It is far easier to find good quality cold air intakes for the Cooper S than the Cooper. The reason is that the engine bay of the S is much warmer (caused by having a supercharger and intercooler wedged under the bonnet and running at far higher temps than a normal aspiration engine) so heat has a very big effect on the S. Most CAIs are made for the S but there are a few (IMO less well developed) versions for the Cooper and ONE. See the pics below. One is the Alta CAI (this is designed for the Cooper S) and the other is a picture of 'normal' performance filter intake system, like many designed for the Cooper and ONE. Note the metal box and the direct cold feed into the air box (black plastic pipe) on the Alta. The Cooper K&N filter doesn't have this but people have modded thiers to ensure better cold ar feed to the filter, so that pobably helps. Attached Thumbnails

Mar 30th, 2006, 10:42 AM	#9 (permalink)
-=cHiLli=- Banned Join Date: Apr 2005 Location: land of the nerds... Local Time: 07:08 PM Posts: 229 Offline	Quick sub question: How do they affect insurance & warranty? i++()

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Mar 29th, 2006, 07:16 PM	#2 (permalink)
dave_cooper_s Loving Mini adventures! Join Date: Jan 2006 Location: Glasgow Local Time: 07:08 PM Posts: 193 Offline	There will be lots of names for which is 'best' including Alta, GTT etc I am looking into getting the GTT myself (look in sponsor directory for more info). The difference in having one of these aftermarket filters is that they are designed to be less restrictive than the standard items and so can flow more air into the engine, therefor more power - this also means they make more noise. As for actual power gains, I am unsure but someone will be able to help. With previous cars I have always felt improved throttle response. Dave

Mar 29th, 2006, 09:27 PM	#4 (permalink)
dave_cooper_s Loving Mini adventures! Join Date: Jan 2006 Location: Glasgow Local Time: 07:08 PM Posts: 193 Offline	minigolf, does the new filter pretty much make the supercharger whine all the time? rather than just when your putting the foot down?

Mar 30th, 2006, 03:46 AM	#5 (permalink)
Eds MINI2 Newbie Join Date: Jul 2004 Local Time: 12:08 PM Posts: 44 Offline	This was my first mod.= Ultrik CAI. Throtlle response improvement is very minimal but noticed more above 4K. The sound is also louder but music to my ears. I made a 2.5 inches diameter hole on the back plastic panel to get more fresh air.

Mar 30th, 2006, 08:43 AM	#7 (permalink)
Richard Crofts THE STICK Join Date: Feb 2003 Location: Worcestershire WR15 Local Time: 07:08 PM Posts: 3,001 Offline	A cold air intake is usually enclosed in a box (in the case of ALta and GTT this box is either metal or lined with metal) which shields the cone filter from warm air/heat off the engine or intercooler (if its an S). The shielded box usually has a direct cold air feed (a pipe from the front of the engine bay) that sucks in cold air from outside and straight into the box. A noirmal intake is either like the stock one in a plastic box with a panel filter or it is an open cone that just sits inside the engine bay with no heat sheilding and usually no direct cold air feed onto the cone filter. A cold air intake generally gives better power as cold air is denser than warm air and so the bang inside the cylinder of the engine is bigger and more efficient.

Apr 1st, 2006, 12:37 PM	#10 (permalink)
Masada MINI2 Newbie Join Date: Mar 2006 Location: Cloverdale, B.C. Local Time: 10:08 AM Posts: 30 Offline	Don't see how they would....I got a Dinan CAI through the dealership installed so in that case I am ok. I don't see what difference other, similar kits would have on warranty. The bottom line is, ask the guys at the service dept. Before you judge a man, walk a mile in his shoes.....That way if you **** him off, you will be a mile away and he will have no shoes....

Apr 2nd, 2006, 09:01 AM	#11 (permalink)
roland2003 MINI 2 Sponsor GT Tuning Join Date: Jan 2004 Local Time: 07:08 PM Posts: 2,733 Online	Ultimately (apart from filtering) the intake design has one function. To allow the maximum mass of air (oxygen is the bit we want) through. It is a combination of 2 criteria that effect this goal. 1) Minimum possible pressure drop (partial vacuum) through it.- The higher the pressure (ie nearer ambient ) the better . 2) Colder intake air temp. Quite simply a 'bucket full of cold air has more air (by weight) in it than a bucket full of warm air'. -As 21% of 'each bucket 'is oxygen ,we get more oxygen in for a given volume. Anyone can chuck more fuel ,its getting air in thats the difficult bit. Regards Roland GT Tuning -Check out GTT 'Cold Ram Induction Kit on our website. www.gttuning.com

Apr 5th, 2006, 10:12 AM	#12 (permalink)
SamHarrison Javelin Sam Join Date: Apr 2005 Location: Essex Local Time: 07:08 PM Posts: 213 Offline	somehting to note if you have the Cooper is that if you replace the air box you lose the air feed from the front of the engine and all the air that is being sucked in via the cone filter is warm. I have the K&N 57i Induction kit for my MC and i had to get some flexi tubing to re instate some form of cold air feed from the inlet "mouth" to where the filter site in the empty space once filled with the air box. sam

Apr 7th, 2006, 08:21 PM	#13 (permalink)
falconetti MINI2 Newbie Join Date: Mar 2006 Local Time: 06:08 PM Posts: 6 Offline	sam have you got photo your this topic about your car

Apr 7th, 2006, 08:54 PM	#14 (permalink)
Restyle Damned My Classifieds Join Date: Jun 2002 Location: Shropshire Local Time: 07:08 PM Posts: 4,317 Offline	Quote: Originally Posted by i++ Quick sub question: How do they affect insurance & warranty? Found it Very hard to get anyone to insure me after I`d had Just the JCW Air Filter box fitted by my Dealer Warranty of course not a problem if it was dealer fitted In da Wud

Apr 9th, 2006, 12:14 AM	#15 (permalink)
Bilbo Baggins MINI2 Master Join Date: Oct 2001 Location: Shire, Middle Earth Local Time: 02:08 PM Posts: 8,854 Offline	Technically the stock MCS air intake filter system is a "Cold Air Intake". It is a sealed intake, no possibilities of hot air intrusion. It draws cold air from 2 high pressure areas on the car. The first is at the grill, the second is from the cowl vent. The biggest impediment to the stock system is their choice of panel filter. I installed a new foam panel filter and it makes 25 additional hp. not ! Motor on, Dudes and Dudettes!!! '06 MCS SB/S '02 MCS DS/W (retired)

Apr 9th, 2006, 12:43 PM	#16 (permalink)
jamiep GTT'd Join Date: Dec 2004 Location: Slough Local Time: 06:08 PM Posts: 134 Offline	Quote: Originally Posted by i++ Quick sub question: How do they affect insurance & warranty? i++() All modifications have to be reported to your insurer or they can say the policy is invalid. Depending on the company an air filter will cost between £0 and £100ish extra on your premium, if in doubt ask first, fit later

Apr 10th, 2006, 01:28 PM	#17 (permalink)
SamHarrison Javelin Sam Join Date: Apr 2005 Location: Essex Local Time: 07:08 PM Posts: 213 Offline	Quote: Originally Posted by falconetti sam have you got photo your this topic about your car not yet..but i shall try and sort that out for you this evening..ish sam

Apr 13th, 2006, 09:53 AM	#18 (permalink)
SamHarrison Javelin Sam Join Date: Apr 2005 Location: Essex Local Time: 07:08 PM Posts: 213 Offline	Image as promised..if not a little late

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