View Poll Results: How well did the CAI perform?
Lost boost
7
22.58%
No change
20
64.52%
Gained boost
4
12.90%
Voters: 31. You may not vote on this poll
Trying to out-engineer Mazda. Did I succeed?
#1
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Trying to out-engineer Mazda. Did I succeed?
Well, I saw a couple of threads about how to make a CAI for a TII and I wanted to try and see what I could come up with, you know, to test stuff...I was bored. I think I made it the straightest possible way trying to stay as close to 2.5" as possible. This is what I came up with. One 90 degree turn and one 27 degree at turbo inlet.
How well did that CAI do?
I'll wait for a couple of posts.
EDIT: And tell me why you think what you think.
How well did that CAI do?
I'll wait for a couple of posts.
EDIT: And tell me why you think what you think.
#3
looks fine to me. Water is ok once in a while (don't go driving through rivers) but my main concern is the mud, drit and debris that could damage the filter and motor.
Will the fact that you go from a small diameter pipe to a large diameter coupler/pipe (right before the AFM) affect the velocity of the air?
now do you want us to try and figure out whether you gained/lost boost or had no effect?
Will the fact that you go from a small diameter pipe to a large diameter coupler/pipe (right before the AFM) affect the velocity of the air?
now do you want us to try and figure out whether you gained/lost boost or had no effect?
#6
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Ok, let me clarify a few things.
It is a ghetto/home depot mod that I made with left over intercooler piping, cuplers and stuff I had lying around. I know for the rain problem, and I didn't really care, I just wanted to try it out. Thats something I could figure out later. Also, how to make it smother.
The point was to see if I could get a gain.
It is a ghetto/home depot mod that I made with left over intercooler piping, cuplers and stuff I had lying around. I know for the rain problem, and I didn't really care, I just wanted to try it out. Thats something I could figure out later. Also, how to make it smother.
The point was to see if I could get a gain.
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#9
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You didn't out Mazda at all but you did the usual cai idea that everyone does. Mazda would have designed the car with the CAI in mind and would have made it function better.
#10
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This is really simple. I understand that in 1 hour, I didn't out-engineer Mazda, in the sense you use it, but did I get a gain?
And I only see 2 votes on the poll and 7 replies.
And I only see 2 votes on the poll and 7 replies.
#12
i didn't vote because there is no way to get a conclusive answer. I can pull a YES out of my *** but It'd be full of **** (no pun intended).
I don't know. Honestly.
One part of me is saying: "yo, foolio he's pulling in MAD cold air now!"
The other one is saying: "yo, duuuuuuuude, look at that 90* bend! and then look at the diameter change between the pipe on the filter end and the couple/pipe on the AFM side. that COULD cause an issue with the velocity of the air going past the AFM."
then some little bastard is saying: "STFU you can't tell so quit speculating and get some AIT sensors on there!"
So, all the voices in my head are making me crazy.
I don't know. Honestly.
One part of me is saying: "yo, foolio he's pulling in MAD cold air now!"
The other one is saying: "yo, duuuuuuuude, look at that 90* bend! and then look at the diameter change between the pipe on the filter end and the couple/pipe on the AFM side. that COULD cause an issue with the velocity of the air going past the AFM."
then some little bastard is saying: "STFU you can't tell so quit speculating and get some AIT sensors on there!"
So, all the voices in my head are making me crazy.
#15
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I think Mazda wins and you failed. the flapper door in the afm is very sensitive and by turning it on it's side, it will fall open a little due to our ever present friend, gravity. it should be placed like they had it from the factory, with the bottom down.
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One part of me is saying: "yo, foolio he's pulling in MAD cold air now!"
"yo, duuuuuuuude, look at that 90* bend
and then look at the diameter change between the pipe on the filter end and the couple/pipe on the AFM side. that COULD cause an issue with the velocity of the air going past the AFM."
You need to turn your AFM so it's level again. Gravity is helping the flapper door stay closed.
but did I get a gain?
#17
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Why would you not just pipe some cool air to the area where the filter is originally with some flex tubing?
the flapper door in the afm is very sensitive and by turning it on it's side, it will fall open a little due to our ever present friend, gravity. it should be placed like they had it from the factory, with the bottom down.
#23
Well, I saw a couple of threads about how to make a CAI for a TII and I wanted to try and see what I could come up with, you know, to test stuff...I was bored. I think I made it the straightest possible way trying to stay as close to 2.5" as possible. This is what I came up with. One 90 degree turn and one 27 degree at turbo inlet.
How well did that CAI do?
I'll wait for a couple of posts.
EDIT: And tell me why you think what you think.
How well did that CAI do?
I'll wait for a couple of posts.
EDIT: And tell me why you think what you think.
You've used PVC under the hood, which is well known for breaking down at elevated temperatures(it loses its plasticizer and cracking - which explains why Mazda never used it on any of their cars under the hood), you didn't support your MAF sensor with a bracket, you are using unlined hose clamps which cut into the coupler, you don't have any way to keep water from getting sucked into the air filter, and I'm guessing you don't have beads rolled into the ends of your chrome pipes going into the air filter.
#24
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Ok, let me clarify a few things.
It is a ghetto/home depot mod that I made with left over intercooler piping, cuplers and stuff I had lying around. I know for the rain problem, and I didn't really care, I just wanted to try it out. Thats something I could figure out later. Also, how to make it smother.
The point was to see if I could get a gain.
It is a ghetto/home depot mod that I made with left over intercooler piping, cuplers and stuff I had lying around. I know for the rain problem, and I didn't really care, I just wanted to try it out. Thats something I could figure out later. Also, how to make it smother.
The point was to see if I could get a gain.
#25
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If your willing to learn everything about fluid dynamics, go read online or take a course. Im still learning it but I know some of the basics
As far as restriction goes for bends, there would be about .05 - .10 inch H20 with a smooth 90 degree bend ranging from 2" to 4". Thats not even .01% of increase in pressure or drop in air density. You could have 6 bends and still not be able to measure the power lost.
As far as restriction goes for bends, there would be about .05 - .10 inch H20 with a smooth 90 degree bend ranging from 2" to 4". Thats not even .01% of increase in pressure or drop in air density. You could have 6 bends and still not be able to measure the power lost.