Turn Mazdaspeed3 CAI to Short ram

[Sacrilicious]

I think the difference is 4500ft elevation on a mustang dyno turning front and rear wheels.

All other things equal, I think you won't see an appreciable difference between the two.

+1

i forgot about the 4500ft elevation...

 

[ZooMIN3]

I did it like that because when I went to put it in, it was getting late and dark, and the lighting in my garage is a joke. I come from a family that, except for my late grandfather, could give two s**** about cars, so we have no tools, no garage goodies, nothing. The one good think out of it is I get to have his old MGB. Further, I don't have the delicate hands of a surgeon, but the butcher hands of an offensive lineman (I played for 12 years, wahoo!), so I could really use the help in some parts of the installation of the lower pipe.

Its going to be the full CAI because I paid for the full CAI, even when it floods down here I don't need to worry much (it at all), and I'll have the assistance I need because me and a buddy are doing a nice project day.

Gotcha... well, I did a how to on an install for the regular 3 with an Injen CAI back in the day.

It's the same process for the MSCAI. Exact same thing, only difference is, you'll have to take out some air deflector torwards the front driver side bumper, and the mounting point for the lower half of the MS3CAI is a little different. Plus you'll have to dismount the HID "Transformer" looking box, has lots of fins on it, looks almost like an amp, and attach it to the MSCAI piping itself. All the bracketts to make this happen are included. Where you dismount the HID "Transformer" (not the movie or robots) you'll be mounting the MSCAI for stability purposes. If you need pics, I can get them for ya tomorrow. I should probably do another HOW TO only for the MS3 though... I'll have to think about it. lol

Here is the install MZ3 HOW TO INJEN INSTALL

If there is enough demand, I'll probably go for it... although I must say, I just ripped out the stock air deflector, and tossed it.... so that part is adios muchachos..lol(wow)(braindead(eyeballs)

-J

 

[rodney]

i did a short ram intake after having my injen CAI installed after a while, i have hit too many deep puddles recently and i dont want to take the chance with it. i know two people that have water locked there motors, one of them is on this forum named Hellcat when he had his protege5, so i took mine off and cut a nice clean cut about 4-5in. after the maf housing and threw the filter on and bam you have a injen short ram intake. i dont notice any difference in power before or after, but the turbo spool is a little louder and the release noise is a little quiter, probably because that noise echod in the tube a little more on the cai

 

[Young Roids]

Yea I would go sri route just for peace of mind. Is it really worth risking destroying your whole motor for a what 3-5hp gain?

 

[Mocoso]

Am I the only one who is VERY skeptical of a 30HP gain from a CAI (ANY CAI) -my guess is BOTH will give you close to 8-10HP gain with the CAI giving a few HP more...

 

[Sacrilicious]

Am I the only one who is VERY skeptical of a 30HP gain from a CAI (ANY CAI) -my guess is BOTH will give you close to 8-10HP gain with the CAI giving a few HP more...

+1...^^;

 

[sleeper3]

I tuned my 350z on a mustang dyno, and while it tests hp in a different way (load based, unlike the dynojet) the relative gain should have been the same. Also, unless it is different for front wheel drive cars, all four wheels don't spin. Just the drive wheels. Of course, in the instance of AWD, all wheels spin. But again, even if they did, the relative gain should have been the same.

Also, someone mentioned that the compression of the air causes it to become superheated.... not sure about that one either... I scuba dive all the time, and my tank, when compressed to 3,500 psi (which is slightly higher than my turbo can go safely) is warm to the touch, but no where near 200F.

All the same, I was completely convinced on a cold air setup, and now I am starting to think hard about a short ram instead... even though heat soak will become more of an enemy than it already is.

decisions decisions...

 

[sleeper3]

oh and by the way, the 30 hp gains with the mazdaspeed intake are a highly debated subject, as most of the gain in power is from changing the air to fuel ratio by using a larger mass air flow housing which "tricks" the computer into thinking that there is less air coming into the cylinders than there actually is. Think of it as sort of tuning your car without using a computer. You can search the forums for threads about this. there are tons of them WITH dyno sheets. I mean, you can't really argue with the dyno.

 

[crashkelly]

SRI is safer and provides a quicker spool. As stated before the difference in temp is neglible because of how hot the turbo makes it and then the effects of the intercooler. Personally I like my SRI...It made a large difference in how fast I spooled compared to stock and I dont worry about it sucking up water.

As for the comment about not believing that the turbo pressure causes the air inside to get super hot because your scuba tank isnt hot...well that is a horrible comparison. Your tank only holds compressed air and the tank is a thick ass piece of insulated metal...A turbo is DOING the compressing.

 

[ZooMIN3]

Am I the only one who is VERY skeptical of a 30HP gain from a CAI (ANY CAI) -my guess is BOTH will give you close to 8-10HP gain with the CAI giving a few HP more...

I figured I gained about 100hp with my MSCAI. (rockon)

 

[Jeffspeed3]

Mazdaspeed Sri

I've seen this done (SRI) once before and wondered if Mazdaspeed made a SRI for our cars. Now I know. Anyway, does anyone have an opinion concerning intercoolers, BOV's, and intakes. Have been looking at the new Cobb SRI, and the HKS. Also several aftermarket intercoolers, one of which comes in 3.25, or 3.50 inch. Any coments???

Thanks for the info Jeff

 

[Sacrilicious]

I tuned my 350z on a mustang dyno, and while it tests hp in a different way (load based, unlike the dynojet) the relative gain should have been the same.

the relative gain would have been the same percentage-wise, but when you come from a 30hp gain on a dynojet at sea level and then do the same runs on a mustang dyno at 4500ft elevation, you're going to get less than a 30hp gain...that's the concern that people have when comparing the +X hp gain from one dyno to the next. a more useful number would be simply +X% hp gain and not the actual hp gained.

 

[Sacrilicious]

Also, someone mentioned that the compression of the air causes it to become superheated.... not sure about that one either... I scuba dive all the time, and my tank, when compressed to 3,500 psi (which is slightly higher than my turbo can go safely) is warm to the touch, but no where near 200F.

i think the reason your scuba tank feels cool to the touch is because the tank itself is acting like a heatsink and releasing the heat to the atmosphere. basically, if you keep volume constant, the Ideal Gas Law tells you P1/T1 = P2/T2, so if you increase P1 to P2, then the T2 must increase too.

 

[Sacrilicious]

You can search the forums for threads about this. there are tons of them WITH dyno sheets. I mean, you can't really argue with the dyno.

the main issue is that dyno runs can vary a lot from run to run. if you did 10 runs on the same dyno without changing anything, you're going to get 10 different graphs, so when people compare a "before" and "after", it's still pretty hard to say if it's for real, because you could have very easily had a variance in the runs due to conditions beyond your control. quite honestly, the best way to tell whether you improved things is just to run a number of 1/4 miles at stock and then a bunch more after the mod and see if you got a net gain...+_+;

 

[crashkelly]

I've seen this done (SRI) once before and wondered if Mazdaspeed made a SRI for our cars. Now I know. Anyway, does anyone have an opinion concerning intercoolers, BOV's, and intakes. Have been looking at the new Cobb SRI, and the HKS. Also several aftermarket intercoolers, one of which comes in 3.25, or 3.50 inch. Any coments???

Thanks for the info Jeff

Since you seem to be new I will school you...What you just did is called "thread-jacking". If you want more info about BOV's and Intercoolers you should post in a thread related to that material instead of taking this thread off topic from what the original poster intended.

Dont take this as an insult either. I just want to let you know how things work before someone does the usual "flame the newb" routine.

 

[crashkelly]

i think the reason your scuba tank feels cool to the touch is because the tank itself is acting like a heatsink and releasing the heat to the atmosphere. basically, if you keep volume constant, the Ideal Gas Law tells you P1/T1 = P2/T2, so if you increase P1 to P2, then the T2 must increase too.

agreed...I wish I thought of high school science class when I was trying to explain that!

 

[desperado-c]

Am I the only one who is VERY skeptical of a 30HP gain from a CAI (ANY CAI) -my guess is BOTH will give you close to 8-10HP gain with the CAI giving a few HP more...

Whoever claimed 30 hp just from a CAI? Mazdaspeed claims 30 bhp (about 25 whp) from using both their intake and exhaust. I got 19 with my CPE on a dynojet with a crappy cooling fan up front. So, I'll go out on a limb and say it's definitely higher than 8-10 but lower than 30.

 

[chacon101]

From the multiple dyno graphs that have been posted on the forum here, I think 24-25 whp was the figure that most everyone agreed to for the MS CAI.

I think the SRI is about the same when you are at speed because of the cold air.

It's all in the forum..just needs to be searched out.

 

[sleeper3]

I wish I could see the rwq button. stupid internet filtering.

 

[aaronc7]

I think one reason CAIs are dynoing higher than SRIs is intake temps on the dyno. Many have reported (not just companies like cobb but ms3 owners) that above something like 35mph, hood temps are the same as ambient. In which case SRI intake temps = CAI temps pretty much. It's going to be hard to reproduce those conditions with a closed hood on a dyno...will probably have hotter air under the hood. I see the only real advantage of a CAI is having cool air after the car has been sitting awhile or at slow speeds. Once at highway speeds both should perform about the same, and that has been my experience going from the MS CAI and converting to SRI. Get a cold air box for the SRI and it should be pretty much like a CAI.