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4" Home Fab CAI

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  #81  
Old 12-07-2011, 11:53 AM
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Originally Posted by MoparPaul
Hi, New to this site and really enjoy all the cool info and subjects on the Mighty Mopars.
Owned Dodges ever since 81 with my 74 Dodge Dart sport and several Trucks up till my current ride, an 06 1500 and I loved them all.

Just finished my 4" intake and it sure SUX! Just like BigHorn 777 and Butch said it would earlier in this Year old + post.
Took me the better part of Sat. afternoon and all of $65 bucks to make.
Thanks for the detailed info and pics...
Here are some of mine...

Attachment 14871

Attachment 14872
not bad! now you need one of these!
https://dodgeforum.com/forum/parts-s...wer-wires.html
 
  #82  
Old 12-07-2011, 07:32 PM
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Nice work man, looks good. I like the stickers...
 
  #83  
Old 12-08-2011, 02:14 PM
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This makes me want to up my 3" homemade intake to a 4" now! Very nice!
 
  #84  
Old 12-09-2011, 04:30 PM
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Looks Great Im gonna have to do this now.
 
  #85  
Old 12-09-2011, 05:27 PM
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Does the 4.7 also have a 3 inch inlet. its cold here and im lazy to go out and take it off and look.
 
  #86  
Old 12-10-2011, 06:34 AM
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I think they are all 4 inch........5.7 & the 4.7. not sure thou.
 
  #87  
Old 12-10-2011, 09:32 AM
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I PMed Hammer last night and he said he built quite a few of them and the 4.7 is a 3 inch.
 
  #88  
Old 12-10-2011, 10:27 AM
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As you'll see in his pics, he used a 3" to 4" boot, the TB intake is 3".

Intakes are like exhausts, too small is no good and too big is no good (think about water through a pipe, too skinny restricts flow and too wide losses pressure (speed at which it flows).

I've yet to be able to see any advantage to going 4" over 3" but I don't see any disadvantage either. I wouldn't go any larger than 4" though...
 
  #89  
Old 06-13-2012, 03:20 PM
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I'm new to the forum but this is one of the best homebrew CAI's I have seen, can't wait to try it!
 
  #90  
Old 01-18-2014, 02:21 AM
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Is it just me or has no one noticed that he has a reducer where it connects to the air filter which it probably a 4"to3" so with that being said ur 4 inch pipe is doing nothing but there for looks. Going from 3" to 4" back to 3" does not make it suck more air, its physics, only so much air is going to fit thru the 3" tb so all u did was pay more for 4" pipe when u could have used 3" n saved a couple bucks n got the same results but u get an A for effort
 


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