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i hate mac cai!

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  #1  
Old 02-26-2006, 03:48 PM
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Default i hate mac cai!

as some of you may know my car had a mac cai installed on it before i bought the car (the one that bends into the fender). this weekend i was having some problems with it so i decided to modify it so that it didnt have that huge bend right before the mafs. i took it off, opened up my dremel and cut the pipe about an inch from the mafs. then this morning i drove down to pep boys and picked up a huge conical filter and stuck it on the end. omg, the difference was amazing. my car was a lot louder and rode smoother, it felt like it had much more power than it used to. i've been driving it around all day and i love the way it feels now. pics are attached. the second pic is the dirty filter that i took off of the car after i cleaned it.
 
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  #2  
Old 02-26-2006, 04:38 PM
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I should really do this.........where's you go to get the conical filter and what size was the opening?
 
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Old 02-26-2006, 05:29 PM
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got the conical filter at pep boys, it fit 3" 3 1/2" and 4" pipes. there were rubber pieces inside that adapted the filter to whatever size pipe you have. the mac cai is a 3 1/2" pipe but its a little wider right up by the mafs so i used the 4" rubber piece and tightened it down really good. if you use the really long filter like i did you will have to do it this way, if you choose a shorter filter you could put it a little farther from the mafs and the use 3 1/2" piece. trust me, it made a huge difference in sound and performance. i think the filter cost around $30.
 
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Old 02-26-2006, 05:40 PM
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Originally Posted by floppy
got the conical filter at pep boys, it fit 3" 3 1/2" and 4" pipes. there were rubber pieces inside that adapted the filter to whatever size pipe you have. the mac cai is a 3 1/2" pipe but its a little wider right up by the mafs so i used the 4" rubber piece and tightened it down really good. if you use the really long filter like i did you will have to do it this way, if you choose a shorter filter you could put it a little farther from the mafs and the use 3 1/2" piece. trust me, it made a huge difference in sound and performance. i think the filter cost around $30.

I believe you putting that filter in the fender well is a b**** sometimes too so I think i'll be doing this over spring break.
 
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Old 02-26-2006, 06:13 PM
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Is it mac you don't like or just the fenderwell product in general .. I was gonna buy their straight shot CAI.
 
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Old 02-26-2006, 06:15 PM
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Originally Posted by stock03GT(fornow)
Is it mac you don't like or just the fenderwell product in general .. I was gonna buy their straight shot CAI.

Its the bend before the MAF that is the problem..........yes the fenderwell part of it
 
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Old 02-26-2006, 11:01 PM
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Interesting...
 
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Old 02-27-2006, 01:39 PM
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I'm really surprised that mac hasn't revised the design.

Guys this is a KNOWN ISSUE. the sharp bend before the MAF element causes the air stream to get all squirly and turbulent. Turbulent air is not dense nor consistent and causes problems with accurate metering. Straighten the path of the air to the MAF and you'll be much happier.

props to flops for fixing his own shizzle. That's true rodder stylee right there.
 
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Old 02-27-2006, 02:01 PM
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Looks like a really clean job! Nice :shifty:
 
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Old 02-27-2006, 03:31 PM
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Hey floppy do you have the item number for that filter looks like it fits in there nice and snug
 
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Old 02-27-2006, 03:43 PM
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Originally Posted by Icefreezen
Hey floppy do you have the item number for that filter looks like it fits in there nice and snug

heh, yeah it barely fits. hold on, ill go get the item number if i still have the package..


edit: the brand name is spectre and the only number i see on the package is 9732. i did a search on google for ya and found this - http://www.amazon.com/gp/product/B00...nce&n=15684181
im sure you could find it cheaper elsewhere, this was just the first site i found. they come in other colors besides red but i figure youd probably want red with a red car. good luck with it.
 
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Old 02-27-2006, 03:51 PM
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Originally Posted by floppy
heh, yeah it barely fits. hold on, ill go get the item number if i still have the package..


edit: the brand name is spectre and the only number i see on the package is 9732. i did a search on google for ya and found this - http://www.amazon.com/gp/product/B00...nce&n=15684181
im sure you could find it cheaper elsewhere, this was just the first site i found. they come in other colors besides red but i figure youd probably want red with a red car. good luck with it.

Good deal.....this will give me something to do in 2 weeks.
 
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Old 02-27-2006, 06:57 PM
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You should also get rid of that Chome intake pipe.
It gets superhot in the summer.

go for a JLT RAI kit
 
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Old 02-28-2006, 06:21 AM
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Originally Posted by NoKturnaL
You should also get rid of that Chome intake pipe.
It gets superhot in the summer.

go for a JLT RAI kit

nah, thats not true. i can drive around for an hour, open the hood and put my hand on the chrome intake pipe. it's not hot, a little warm yeah but not hot. that whole thing about it heating up the incoming air is bs.
 
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Old 02-28-2006, 06:36 AM
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Yea thats just like when I swapped from a MAC CAI to a K&N FIPK. I gained MUCH more power and it runs smoother. The bend before the MAF screws up the A/F ratio. There are just more and more people having the same problems. DO NOT BUY A CAI. They really need to stop selling CAI's with the bend in them. I wont buy another MAC product. Theyres just something that scares me about a company that cannot even develop a decent CAI. Why would I buy MAC stuff again?
 
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Old 02-28-2006, 04:54 PM
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Don't get all bent jeredan... it's floppy's pipe. hahaha

Really I agree with you. MAC has never shown me that they engineer any of their products to function, only to sorta' fit. I have to wonder who's their target audience... ricers that's who. Guys with GT badges on a 6er and such. You should consider all the parts that a maker puts out when you buy from them. Tells you a lot about their engineering, testing, and marketing practices. MAC seems to be in it for the money and has lost sight of the sport. That's cool, they're a business, they're allowed. And we're allowed not to buy their **** if'n we dun wanna.

The fenderwell idea works quite well actually, in many applications but, you have to modify the kit as delivered from MAC to make it work properly. If you put the MAF farther up the pipe after the bend it'll work just fine. Done it as a test. Not perfect but close. Down side is the pipe is now like 5 pieces instead of 3 and it's prone to leaking when it gets hot. No bwaynoh.

As for intake air temp, come out to the desert southwest and try touching your intake pipe around august. Yeah Florida gets warm... here it gets flat hot. I did the touch it in the summer trick, once. It gets quite hot and does heat the incoming air, but maybe 10 degrees by the time the motor has sucked it in so it won't matter unless your tune is already on the edge. If you're going to use a metal pipe setup then at least wrap it in good high quality heat reflective padding (aluminum tape works but much less well). problem solved and it looks racey.

I had a C&L and it was the worst heat soak offender ever. now I have a steeda kit and it's clean looking but that's about it.
 
  #17  
Old 03-03-2006, 07:52 PM
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The only thing about taking your mac fenderwell cai off and doing that is there is no brace. I plan on zip tieing up mine. I have it tied up with a wire right now, just haven't got around to getting a zip tie around it yet. I'm thinking about maybe making a brace for it. Any other ideas? i haven't thought too much about it.
 
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Old 03-04-2006, 07:12 PM
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Originally Posted by jacliff_3521
The only thing about taking your mac fenderwell cai off and doing that is there is no brace. I plan on zip tieing up mine. I have it tied up with a wire right now, just haven't got around to getting a zip tie around it yet. I'm thinking about maybe making a brace for it. Any other ideas? i haven't thought too much about it.

I have a pretty good idea with maybe fabricating something out of the brace that leads to the fenderwell. But i'm not doing this project for another week,
 
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Old 03-05-2006, 07:37 AM
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mine doesnt need a brace, it sits perfectly in there how it is.
 
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Old 03-05-2006, 06:40 PM
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looks to me like you have taken a quality cold air intake, and turned it into a hot air ram style intake. You dont take cold air in from your engine bay. the reason it goes to your fender is because the air is cooler in there. Yes, it may sound louder, which in return, can falsely trick you into thinking you are faster, but it is not true. If i were you, i would return the mac cai to its original position. that is what i truely believe.
 
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Old 03-05-2006, 06:47 PM
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Originally Posted by mfj
looks to me like you have taken a quality cold air intake, and turned it into a hot air ram style intake. You dont take cold air in from your engine bay. the reason it goes to your fender is because the air is cooler in there. Yes, it may sound louder, which in return, can falsely trick you into thinking you are faster, but it is not true. If i were you, i would return the mac cai to its original position. that is what i truely believe.
Bends before the MAF can cause inacurate air readings causing you to lean out. I dont know about you but id rather cut a 150 dollar intake to perform better than replace a leaned out engine.
 
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Old 03-05-2006, 06:53 PM
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Originally Posted by mfj
Yes, it may sound louder, which in return, can falsely trick you into thinking you are faster, but it is not true. If i were you, i would return the mac cai to its original position. that is what i truely believe.

you have no idea what you're talking about do you?
 
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Old 03-05-2006, 06:58 PM
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Originally Posted by mfj
looks to me like you have taken a quality cold air intake, and turned it into a hot air ram style intake. You dont take cold air in from your engine bay. the reason it goes to your fender is because the air is cooler in there. Yes, it may sound louder, which in return, can falsely trick you into thinking you are faster, but it is not true. If i were you, i would return the mac cai to its original position. that is what i truely believe.

Another newb tring to act smart.................great
 
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Old 03-05-2006, 07:00 PM
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no need to get defensive man. BUT... i really do know EXACTLY what i am talking about. Your now sucking hot air from your engine bay, instead of cold air where your fender is. Just think for a second here. the maf sensor was located after the bend in your pipe. that means it is reading more accurately what is actually going into your engine, rather than what is entering the filter. now if the bend was after your maf sensor, then that could screw you up.
 
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Old 03-05-2006, 07:05 PM
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Originally Posted by Icefreezen
Another newb tring to act smart.................great
if i was trying to act smart, then i guess i should tell you that u mispelled "trying" in your above quote. you wrote "tring"
 
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Old 03-06-2006, 05:22 AM
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Originally Posted by mfj
no need to get defensive man. BUT... i really do know EXACTLY what i am talking about. Your now sucking hot air from your engine bay, instead of cold air where your fender is. Just think for a second here. the maf sensor was located after the bend in your pipe. that means it is reading more accurately what is actually going into your engine, rather than what is entering the filter. now if the bend was after your maf sensor, then that could screw you up.


did you read any of the posts above?!?!? the bend is seriously screwing up the air/fuel ratio... my car was running like **** because of it... i have no problems now and the car runs smoother. you are an idiot, just quit posting on this thread. give it up.
 
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Old 03-06-2006, 06:30 AM
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If you check out the better CAI's on the market, most of them also include a heat shield. I actually fabricated one of these a while back from a sheet of stainless steel, and its not real hard. Assuming you're not a machinist, the best bet would be to find a picture of the parts used by K&N, Densecharger, JLT, etc. and cut the rough size you need with snips. I used some of the scrap to make me a triangular brace that I attached to the flat bottom of the shield. You'll have to do 2 right angle bends in the metal, one at the front where the MAF is, and 1 on the right side to come up and mate with the bottom of the hood. This right side needs to clear the hood by at least 3/4 inches, and you can dress up the raw edge with some soft, black rubber trim (I found some at a parts place). I also drilled 2 holes to supplement the brace and then screwed everything in place. You can get the bends done by clamping the sheet metal between 2 boards, though a sheet metal brake would of course do a better job. Sand down all the edges when you're finished (you'll be doing some trial fits and trimming during the process, of course).

I found it to be a fun project.

I also found that it improved the idle on the car (it was a little rough with the stock MAC setup), and my subjective judgement was that I had gained a small bit of power - and yes, it was definitely louder.
 
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Old 03-06-2006, 07:49 AM
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Originally Posted by tripleblack
If you check out the better CAI's on the market, most of them also include a heat shield. I actually fabricated one of these a while back from a sheet of stainless steel, and its not real hard. Assuming you're not a machinist, the best bet would be to find a picture of the parts used by K&N, Densecharger, JLT, etc. and cut the rough size you need with snips. I used some of the scrap to make me a triangular brace that I attached to the flat bottom of the shield. You'll have to do 2 right angle bends in the metal, one at the front where the MAF is, and 1 on the right side to come up and mate with the bottom of the hood. This right side needs to clear the hood by at least 3/4 inches, and you can dress up the raw edge with some soft, black rubber trim (I found some at a parts place). I also drilled 2 holes to supplement the brace and then screwed everything in place. You can get the bends done by clamping the sheet metal between 2 boards, though a sheet metal brake would of course do a better job. Sand down all the edges when you're finished (you'll be doing some trial fits and trimming during the process, of course).

I found it to be a fun project.

I also found that it improved the idle on the car (it was a little rough with the stock MAC setup), and my subjective judgement was that I had gained a small bit of power - and yes, it was definitely louder.
yeah im already working on that right now using diamond plate. im also fabricating some other pieces such as a battery box out of diamond plate, hopefully everything will be finished this weekend.
 
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Old 03-06-2006, 08:38 AM
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Sorry I don't have pics of my ss version - car is long gone now.

Shoot some shots and let us see how it goes.

Originally Posted by floppy
yeah im already working on that right now using diamond plate. im also fabricating some other pieces such as a battery box out of diamond plate, hopefully everything will be finished this weekend.
 
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Old 03-06-2006, 03:41 PM
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Yeah thought about the same thing. The brace modded into it sounds to be a good idea also.
 


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