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View Full Version : SRI? or cold air?



abstrakt
01-09-2011, 09:40 PM
hey guys i am looking at getting an intake for my ms3 but i am not sure which route to go about..any sugestions?

Kappa
01-09-2011, 09:59 PM
ill try and save you but your going to get hung for asking this question because there are soooooo many topics on it already.. everyone is going to say go use the search tool stupid and stuff like that.. lol

i have had both i like my CAI better.. but there is many reasons why its better to have an SRI so let the battle begin

edit: CAI can have problems with hydrolock if you drive into water.. plus all the crap that comes off the road and what not.. but it sucks really cold air. because its a greater distance from the engine heat... sri dont have as much problems with water but its possible to get hotter air.. unless you use a shield. so on and so forth i hope im right with all the facts

abstrakt
01-09-2011, 10:06 PM
hmmm..sombody told me that changing the stock intake on a turbo charged car will change the air/fuel ratio on the car and that will start to harm it in the long run lol and to be honest i myself was leaning more towards the CAI

Tokay444
01-10-2011, 07:55 AM
That "really cold" air gets pulled through super hot turbo. Only then does it go through the intercooler. That and your filter is a lot less accessible. Sri ftw.

Unoriginalusername
01-10-2011, 08:09 AM
once you are moving the intake air temps are identical on the SRI vs. the CAI so in the real world I doubt there is any difference whatsoever. I've had an MS CAI and a Cobb SRI, and If I were doing it again I'd get the SRI. The SRI is less expensive, easier to install, easier to clean, no hydro lock risk, offers the same power gains, and IMO sounds 100% better.

Here is my car with the SRI and a HKS BPV. The SRI is more than half of the noise you hear

http://www.youtube.com/watch?v=nB1wnKdIT10

swales
01-10-2011, 02:16 PM
Go for the SRI since really there's no performance difference. Also when you go to install a catch can it makes it a lot easier as the CAI takes up the free space provided when you remove the stock air box

Elusivellama
01-10-2011, 02:50 PM
So, since it does change the A/F mixture, will it cause problems by leaning it out more than stock?

Tokay444
01-10-2011, 03:56 PM
Stock runs stupid rich anyway.

Unoriginalusername
01-10-2011, 04:43 PM
So, since it does change the A/F mixture, will it cause problems by leaning it out more than stock?

you'll be fine, improves MPG. takes a catless DP, FMIC, Intake and other mods to get to the point where you start having to think about running out of fuel

Elusivellama
01-10-2011, 05:26 PM
Cool, thanks for the reassurance. Yeah, the soot on my tailpipes is evidence enough that it runs rich. Was looking at the Cobb SRI, seems like a popular choice, also considering the Simota Carbon Charger SRI.

SomeGuy
01-10-2011, 05:35 PM
once you are moving the intake air temps are identical on the SRI vs. the CAI so in the real world I doubt there is any difference whatsoever. I've had an MS CAI and a Cobb SRI, and If I were doing it again I'd get the SRI. The SRI is less expensive, easier to install, easier to clean, no hydro lock risk, offers the same power gains, and IMO sounds 100% better.


Except that you're not always cruising around on the highway or blasting around a track....in town sitting idle in stop and go traffic you're going to see more improvements, not necessarily better performance (since you're not driving quickly in heavy traffic) but more efficient.

And yes you are feeding air into a hotter turbo, but less thermal energy is less themral energy any way you slice it. The biggest gains be it SRI or CAI is still from removing restriction from the intake.

Unoriginalusername
01-10-2011, 07:01 PM
Except that you're not always cruising around on the highway or blasting around a track....in town sitting idle in stop and go traffic you're going to see more improvements, not necessarily better performance (since you're not driving quickly in heavy traffic) but more efficient.

And yes you are feeding air into a hotter turbo, but less thermal energy is less themral energy any way you slice it. The biggest gains be it SRI or CAI is still from removing restriction from the intake.

This has been covered in excruciating detail on various US boards... several people have data logged an MS3 with a CAI and one with a SRI driving the same route together. The minute the car is rolling the AIT's are the same... that is the point I made about comparing the two; there is no difference in air intake temperature performance when comparing a SRI sucking in engine bay air vs. a CAI pulling in air from the lower front fender. As you were saying, the gains for a turbo car are on the volumetric efficiency not the temperature of the air itself.

abstrakt
01-10-2011, 07:25 PM
so then in lamens terms its okay to throw on either a CAI or a SRI and not have to get a tune or anything done because it wont harm the car?

Tokay444
01-10-2011, 07:45 PM
Yes.

abstrakt
01-11-2011, 12:49 AM
okie dokie then thanks for the suggestions, and it looks like its the SRI ftw lol:thumbsup

loki
03-23-2011, 03:40 PM
guys, i'm new to the forum.

but I would like to know where can you purchase a SRI from in the Toronto area, or do most of you guys order your stuff online?

Mazdy
03-23-2011, 03:44 PM
guys, i'm new to the forum.

but I would like to know where can you purchase a SRI from in the Toronto area, or do most of you guys order your stuff online?

Look into the sponsor sections...

Nextmod and Garage16 are mostly peoples choice and theyre local

loki
03-23-2011, 04:10 PM
will do.

thanks.

n00bMeiSter
03-23-2011, 04:11 PM
because I have an sri and I love how easy it is to work with (and how nice and cheap it is) I'm going to say SRI.

gotak
03-23-2011, 04:23 PM
Neither. You need this: http://www.youtube.com/watch?v=V7wXNKOat6U

abstrakt
03-26-2011, 06:58 PM
lol a snorkle?:cool

gotak
03-26-2011, 09:58 PM
lol a snorkle?:cool

Yep! LOL

miako
03-26-2011, 10:00 PM
Not an expert at this but I have a k&n SRI, picked it up at Nextmod and it comes with a heat shield, installation is easy and power is extremely noticable, no problem with my MPG, i think it improved it IMO. Hope this helps! :thumbsup

Queue
03-27-2011, 02:13 PM
I'm going with the K&N Typhoon SRI myself as it gives crazy gains and is easy to install. In fact, I asked a Mazda dealership if it will void my warranty and they said no, so long as it doesn't cause any problems. They even said to bring it in and they can install it.

Kris"Speed3"CWP
03-31-2011, 02:25 AM
hmmm..sombody told me that changing the stock intake on a turbo charged car will change the air/fuel ratio on the car and that will start to harm it in the long run lol and to be honest i myself was leaning more towards the CAI

As long as the SRI or CAI has its MAF housing properly made to exact duplicate of stock housing it will not throw out your fuel trims!

That being said stay clear from AEM or MazdaSpeed CAI with is made by AEM due to poor quality MAF housing and it throws out your A/F ratios!! I had a MazdaSpeed CAI installed on my Gen 2 and my fuel consumption went up from 10.6L/100 to 13.6 to as high as 14.2L/100 and my fuel dilution in oil was 9x's allowable limits.

I would stick with Corksport,CP-E or Injen as the MAF housing are calibrated for our cars and they are all made in the USA and tested on our vehicles. just research whatever intake your looking at and make sure the MAF housing is a separate piece or welded into the pipe this would show that it was made to work with your car.

MajesticBlueNTO
03-31-2011, 02:32 AM
As long as the SRI or CAI has its MAF housing properly made to exact duplicate of stock housing it will not throw out your fuel trims!

That being said stay clear from AEM or MazdaSpeed CAI with is made by AEM due to poor quality MAF housing and it throws out your A/F ratios!! I had a MazdaSpeed CAI installed on my Gen 2 and my fuel consumption went up from 10.6L/100 to 13.6 to as high as 14.2L/100 and my fuel dilution in oil was 9x's allowable limits.

I would stick with Corksport,CP-E or Injen as the MAF housing are calibrated for our cars and they are all made in the USA and tested on our vehicles. just research whatever intake your looking at and make sure the MAF housing is a separate piece or welded into the pipe this would show that it was made to work with your car.

i think you should qualify your statement regarding the Mazdaspeed CAI by saying you ran one for a 2007-2009 on your 2010; which wasn't supported to begin with.

i have a Mazdaspeed CAI in SRI mode, with the recommended air straightener, and I have had 0 issues - stock, stage 1, and now stage 2.

Kinn
03-31-2011, 10:46 AM
i think you should qualify your statement regarding the Mazdaspeed CAI by saying you ran one for a 2007-2009 on your 2010; which wasn't supported to begin with.

i have a Mazdaspeed CAI in SRI mode, with the recommended air straightener, and I have had 0 issues - stock, stage 1, and now stage 2.



....Pwned....


Kris, most of your posts here are full of great information but somehow your delivery leaves me thinking...Asshat...totally up to you but maybe change the tone? People would benefit much more from your advice and information if they didn't think it was just an angry rant.

abstrakt
03-31-2011, 01:02 PM
what would you generally want? the intake with the welded maf sensor home or the one with the sperate peice..i know its kind of a dumb question but i just want some feed back to help with my decision lol

SomeGuy
03-31-2011, 01:26 PM
I just picked up the cp-e one for my 2010 MS3, probably will install in the next week or two but just looking at it build quality wise it's superb. I had an AEM in my old 06 GS and it was kind of meh...did the job, sounded good, performance improvements...but it did throw CEL's on occasion and was generally not very well built.

rmcat
04-06-2011, 10:12 AM
The best would be a SRI plus a ColdAirBox I think

Blkoutspd3
04-07-2011, 08:09 PM
I love my Mazdaspeed CAI, Works pretty good and sounds awesome haha. Id probably much rather the CP-E but....oh well.

binz
04-09-2011, 08:17 PM
i like the mazdaspeed cai too; you can really hear the turbo and the sound isn't obnoxious. i'm just not looking forward to the time required to clean the filter every year.

SomeGuy
04-10-2011, 11:40 AM
I just installed my cp-e intake and inlet yesterday...let me tell you, it's worth every penny. It pulls amazingly well all the way through the RPM range now and it sounds so amazingly awesome :)

Cleaning a CAI is not hard. All you need to do is jack up the one side of the car, undo the wheel well liner (3 screws) and 3 more screws on the bottom liner and then you can pull that bottom liner part out of the way enough to get at the filter.