Mazdaspeed 3 CAI & Cobb ECU flash

[Je5ter]

I heard somewhere that these two will NOT be compatable with each other?? I want to get a MS CAI but I will probably hold off until i know forsure.....

 

[bova80]

cobb says that about all intakes and their ap unit. they recommend using the stock intake. i don't understand it because if the thing is used to tune your car why can't you just tune it for that intake? i think they are fool of crap and probably want you to buy their intake.

 

[subparpunk03]

The differing sizes of the MAF housing can cause the mass air flow sensor to read different values for the same amount of air flowing through.

Since the AP is not a tool used to tune, but rather just a reflash, then having an intake with a different MAF housing size can cause your car to run richer or leaner. depending on what the flash does.

Since the MS cai is such a popular option though, I am 100% sure that cobb will release a map that can be used with the MS cai safely. So don't worry, I say get the cai.

 

[Jays07MS3]

The differing sizes of the MAF housing can cause the mass air flow sensor to read different values for the same amount of air flowing through.

Since the AP is not a tool used to tune, but rather just a reflash, then having an intake with a different MAF housing size can cause your car to run richer or leaner. depending on what the flash does.

Since the MS cai is such a popular option though, I am 100% sure that cobb will release a map that can be used with the MS cai safely. So don't worry, I say get the cai.

The MS CAI is supposed to have the same size MAF housing as the stocker.

http://www.msprotege.com/forum/showthread.php?t=123690585

 

[BluMicaR]

Well, Cobb will release, at least, a tune for the SRI and that's it, so being as the Cobb SRI and the CPE CAI have the straighteners and the same exact MAF diameter as stock CPE's intake should be invisibly compatible with this flash.

Also, I had heard the exact opposite as you Jays^, the Mazdaspeed CAI has a larger MAF and no straightener and is in cases causing people to throw CELs. CPE, Cobb, and stock are the only options that nobody has once (to my knowledge) had any issues with.

Of course, all those with the CPE CAI are going to be sad when they drive their car in the first little sprinkle and because of hydrolock the wheels lock up, the engine falls out, and the flux capacitor redlines into terminal and the resulting neutrino release destroys all organic life, on Earth, as we know it.

(boobs)

 

[Jays07MS3]

Also, I had heard the exact opposite as you Jays^, the Mazdaspeed CAI has a larger MAF and no straightener and is in cases causing people to throw CELs. CPE, Cobb, and stock are the only options that nobody has once (to my knowledge) had any issues with.

Thats what I heard too but Craighjr has actually been measuring the diameters so I'm leaning towards his data rather than hearsay.

Hello, I am trying to get a handle on what the I.D.'s are for the maf sensor housings on the various Speed 3 intakes. I am looking for the measurement of the cross section at the maf. My readings are done with the pipes and sensor out. Stock in inches is between 2 5/8" and 2 11/16" so a good bit over the assumed 2 1/2" that has been rumored around here.

Stock: 67mm, 35.24 sq cm, air straightener, (verified)
Mazdaspeed CAI: 67mm, 35.24 sq cm, open tube (verified)
Turbo XS SRI + CAI: 66mm, 34.19 sq cm, open tube (verified)
Cobb SRI: 63.5mm, 31.65 sq cm, air straightener (not verified yet)
BEGI SRI: ?
CP-E CAI: ? air straightener
Injen CAI: ?
HKS SRI: ?
Fajita: ? (Fujita)
AutoExe: ? (Like anyone would pay that much for an intake)

 

[subparpunk03]

Of course, all those with the CPE CAI are going to be sad when they drive their car in the first little sprinkle and because of hydrolock the wheels lock up, the engine falls out, and the flux capacitor redlines into terminal and the resulting neutrino release destroys all organic life, on Earth, as we know it.

Hilarious.


I'm sure someone out there has an A/F gauge and the ms cai, and will check to see if the flash causes the car to run unsafely. Its too soon to be worried about this I think.

If you want to play it safe and just get the cobb intake, I have one and I love it.

 

[Craighjr]

The only differance I see with the stock, CP-E, and Cobb compaired to the MS is the lack of a straightener. I do not know the exact size of the Cobb or CP-E's yet. I bought a Cobb and next time I see LaLoosh I will have to measure his CP-E as well.

 

[Je5ter]

I would rather have the MS CAI thought then the SRI Cobb intake... Hmmm I guess We'll just have to wait until Cobb gets their stuff together with this flash...

 

[aaronc7]

I asked cobb about this awhile back. They said it may work...but it might cause you to overboost or go too lean or something- they just dont know yet for sure. I'm hoping they address the issue since the ms cai is really popular.

 

[dread]

I read that cobb will release a map for the ms cai, since there were so many potential customers worried about it. Since when do people with the ms cai throw cels. I haven't heard of a single CEL caused by the ms intake

 

[Je5ter]

I read that cobb will release a map for the ms cai, since there were so many potential customers worried about it. Since when do people with the ms cai throw cels. I haven't heard of a single CEL caused by the ms intake

Link??

 

[redrocketz]

the cobb is tuneable just as much as the other options available out there.

 

[aaronc7]

But I think you have to purchase tuning software seperate to be able to tune on your own? I could be wrong tho

 

[redrocketz]

yes you do but any authorized dealer should have the software to make you a map.

 

[ElBartoRex]

yes you do but any authorized dealer should have the software to make you a map.

yeah that costs in the range of $300-$400 for a dyno tune.

here is how cobb does all their other stuff:

The accessport come with a few maps pre-loaded, like Stage1 for a stock car or Stage2 for a TBE..etc.

they will most likely NOT make a map specifically for the MS CAI..why? because why would they do that when they sell their own intake? If you want to run another intake you can either bolt it on and hope for the best or get a customer map built from a tuner in the range listed above.

For the WRX, cobb does not support any intake other than the Cobb short ram. Any other intake and a custom tune is recommended.

 

[Sacrilicious]

from what i understand, the lack of straighteners in the MS CAI messes up the AFR. all mention i've read about it says that it runs leaner than stock. the important part is that whether the diameter of the MAF is the same or not, it's still not giving stock AFR, so that messes up any ECU flash that the AP uses. i really don't think that Cobb should be responsible for anything other than a stock AFR and TBE with their default stage 1 and stage 2 flashes. hell, if they went ahead and did that, it would take even longer to release the AP, so tell me what you would prefer: AP + $175 worst case to get a cobb SRI or AP + undetermined extra delay till release? oO

 

[redrocketz]

yeah that costs in the range of $300-$400 for a dyno tune.

here is how cobb does all their other stuff:

The accessport come with a few maps pre-loaded, like Stage1 for a stock car or Stage2 for a TBE..etc.

they will most likely NOT make a map specifically for the MS CAI..why? because why would they do that when they sell their own intake? If you want to run another intake you can either bolt it on and hope for the best or get a customer map built from a tuner in the range listed above.

For the WRX, cobb does not support any intake other than the Cobb short ram. Any other intake and a custom tune is recommended.

well we would probably be making maps available to people when the time comes. I have experience with the AP and it is a pretty simple tool to use.

 

[Jays07MS3]

from what i understand, the lack of straighteners in the MS CAI messes up the AFR. all mention i've read about it says that it runs leaner than stock. the important part is that whether the diameter of the MAF is the same or not, it's still not giving stock AFR, so that messes up any ECU flash that the AP uses. i really don't think that Cobb should be responsible for anything other than a stock AFR and TBE with their default stage 1 and stage 2 flashes. hell, if they went ahead and did that, it would take even longer to release the AP, so tell me what you would prefer: AP + $175 worst case to get a cobb SRI or AP + undetermined extra delay till release? oO

I have a MS CAI and my AFR is in the 9's. If it leaned it out any, its not really noticable.

Here's my AFR logs (from shops WB and stock WB) from a dyno run.
http://www.msprotege.com/forum/showthread.php?t=123683721

 

[flipstylex]

sri ftw