2004 M3 Mods

[mikesmixes]

Hi all - I originally had this post in ECU & Tuning, however the topic has moved from that of my ECU.

I have attached some pictures. Spec on the car, unfortunately its only a 1.6 petrol, DOHC. The red arrow on the pic indicates where the main air intake starts (well there is small gap from here to the front of the car) but you can see that this is different to N/A 1 in terms of the resonator being at the bottom.

I also added the TB pic, I am going to add a Ground wire to the TB bolt.

I have given thought about the CAI, and I think it will be cheaper and easier to install a SRI, since all the plastic for the stock air intake shall be removed, there shall be nice space for the SRI to sit comfortably where the arrow is.

How many nozzles (or whatever they called) will the SRI pipe need, ie for the MAFS and so on? Cos here in SA VW's are practically exploited so there is EVERYTHING available for a VW incl. a kitchen sink for a MK1 Golf (joke - close enough) but not really the newer cars, especially Mazda.

I shall have to make my own SRI pipe.

One other thing, is there an easy accessible place for a 12V supply in the car, going to install some blue neons under the dash on each side. Just wanted to ask before i start dismanteling, knowing my luck only to find there was a clearly marked set of wires... "12V For Neons", lol!!

 

[NCZ13]

its not that much harder to install a cai over a sri

its just an extra pipe. thats it.
oh and the maf plugs directly into the intake tube. its not a seperate piece

on second look, i have no idea how you would put an intake on that...

or if they even make one for your engine nonetheless

 

[tsunami]

thats a bit odd... kinda reminds me of my cousins old escort engine with all that intake ducting.... mmm i really don't know what to tell you about an intake for that?? maybe talk to some of the vendors like protophile or ken from protege garage as they may have access to parts for cars like that??? (or not but its a shot)

 

[mikesmixes]

Just my luck that my car is out of the normal or doesnt support the normal mods. Well, thats what is the fun part, i get to fabricate my own mods and be different.....

On syaing that, i have add two arrows to my TB pic, have a look. The RED arrow is the main air intake after the stock filter. I assume that the pipe from the SRI needs to connect to this somehow??
The blue one is pointing some pipe that im not sure what it is. Maybe this is for the vaccuum of MAFS???

The reason i asked about the extra nozzle things is that I am going to have to take a piece of aluminium tubing and bend it and add my own small nozzle onto it or how ever many i need.

I saw this picture from COSMO...this is sort of similar to what i need to do.... they have a small nozzle off the middle of the pipe and then that big black connector which i assume is the MAFS??

I expect to have alot of room once all the stock ducting removed and nice space to add a filter like the cosmo setup.

oh yes...tsunami can u upload a pic of ur intake, i saw it briefly on ur slideshow.

Thanks

 

[tsunami]

on the cosmo pic that black square looking thing right behind the filter is the maf. you need to make sure the housing you screw it into is nice a tigh with a gasket or something its very important. also don't over tighten the screws or you will crack the casing and need a new one... they are not cheap! the cosmo setup looks exactly like my intake except i have a carbon fiber heat sheild around the filter to help keep intake temps down. on some studies i did in comparing intake temps with my sri to others with a cai they were the same if not a bit lower while driving but once stopped my sri temps were deffinatly higher then the temps with a cai.

i believe the tube/nozzle you are talking about is a crank case breather tube...

 

[D-rock240]

I was expecting pics of an 04 M3, not a MZ3

 

[Akaveli]

I was expecting pics of an 04 M3, not a MZ3

(stooges)

 

[mikesmixes]

does the MAFS need to have an inlet from the main pipe, or can it just be raised above main pipe and screwed on? ie does air going thru the filter have to meet up with the MAFS?

Last time i checked this was a MAZDA forum,lol!!! M3=MZ3 to me

exscuse my ignorance but what is the crank case breather tube for? Does this have to be a perticular size or specification.

 

[tsunami]

the breather tube is just to let air pass into/out of the crank case... you just need to connect a tube to it and put it to the filtered side of your intake.

http://images.google.com/imgres?img...rev=/images?q=MAF+sensor&gbv=2&svnum=10&hl=en

the maf placement is very critical check the link up there for some info on how to clean it but it also shows what it looks like at least in the 2.0+ size cars.

 

[mikesmixes]

Thanks for the link.
I am new to all this Fuel Injected technology, lol, all my previous cars were carbs and prob worth less than the MAFS on its own.

I have a much better idea now of the MAFS, thanks. I need to source a aluminium piece of pipe now and get the piece made so that the MAFS can be mounted on it.

Need to go find the MAFS now and start preparing the SRI for my car.

Thanks for all the help.

 

[tsunami]

no problem that why we are here... good luck with the progect.

 

[mikesmixes]

2004 Mazda 3 SRI Mod

I'm back..... After inspecting and about to remove all my ducting, I saw two big connector plugs connecting to the flat box intake just after the stock pad filter. I have taken a pic of it. I also added one of the MAFS.

Does anyone know what this is, what all the wires do and so on.
Remember my car is a non-US Mazda 3.

Tsunami - have u got a pic of ur CAI or SRI installed on ur car?

 

[tsunami]

the first pic looks like nothing to do with an intake whatsoever. something to do with your ecu or something the second pic is of your MAF sensor... a picture of my intake... will see if i can dig one up but seriously it looks just like that picture of the cosmo intake you had earlier its just a small 45* angle pipe with a filter on one end and the tb on the other.

 

[mikesmixes]

Thanks Tsunami

I didnt know if there were any other sensors measuring the filtered air in there. Maybe the actual filtered air passes under that box or something. What ill do then is leave all the stock plastic except that long ribbed pipe, as this is where the SRI shall go.

Is there any special distance that the MAFS has to be from the TB or filter. I can see a problem that i dont have much cable length to play with, so the MAFS shall have to be mounted on the aluminium pipe close to the TB.

Any suggestions?

 

[mikesmixes]

On my car i found that the PCM is actually part of the intake system. The air flows after the filter over the circuit/pcb of the pcm then past the MAFS and into the TB. I know this doesnt seem right, however i saw in the workshop manual that it is true and i saw it for my self after taking the ducting apart....


The problem im having is that what if a add a SRI, then there will be no air passing the PCM, this is obviously to cool the PCM. Any suggestions?

You can see in the diagrams from the manual that this is the case.PART3 is the cover of the filter and contains the PCM with the outlet being after the PCM (part A) which connects to the TB

 

[tsunami]

thats messed up man... i hate to say it but you may be better off looking into an exhaust as the intake looks like its more trouble then its worth... especially on a 1.6l... your gains are going to be negligable at best...

 

[mikesmixes]

After much concideration and research, i thought of the following;

My TB is cable driven so maybe it will be more forgiving to a SRI, alo im just going to leave all that stock crap there for the ECU and just remove the rubber pipe that directly connects to the TB.

I shall then get a small piece of aluminium pipe and make a mounting for the MAFS, connect the cone on end and use a silicon hose piece to connect the aluminium to the TB.

DO you know what size the TB piece is, ie what size pipe i need to connect to it?

Im not really a fan of the whole exhaust sound, i like the intake mod sound more. Thats more what this is really for, even if there no gains.