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Best Cold Air for C7

 
Old 02-14-2019, 08:17 PM
  #41  
Dcasole
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Yep that's it , I need to try and find the post , I forget what the title was ...but he had back to back dyno sheets showing the gains

Dave ,
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Old 02-14-2019, 09:23 PM
  #42  
BrunoTheMellow
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Originally Posted by Dcasole View Post
Yep that's it , I need to try and find the post , I forget what the title was ...but he had back to back dyno sheets showing the gains

Dave ,
Holy crap that's a big hole. I have no idea how I hadn't realized that before. Ive had that piece off a few times. I'll stick my thermocouple in there with and without the plastic and see if it makes a difference on a stock airbox.





If one really wanted to, you could easily double or triple the size of the hole and tada, a homemade vararam intake. The stock filter position is also not directly below the hole so it wouldn't get wet.

Last edited by BrunoTheMellow; 02-14-2019 at 09:28 PM.
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Old 02-14-2019, 09:46 PM
  #43  
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Yep that's exactly my reaction when I took the plastic off and saw the hole I am still trying to figure out why it's there and why they designed a peice of plastic to cover it ...

Dave
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Old 02-14-2019, 10:17 PM
  #44  
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maybe im missing something, but i dont see how this is going to get any airflow....the hood sits on top of it
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Old 02-14-2019, 10:51 PM
  #45  
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Originally Posted by JT Corvette View Post
maybe im missing something, but i dont see how this is going to get any airflow....the hood sits on top of it
As it does with a Vararam but airflow tests prove that it does work ......

Dave
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Old 02-15-2019, 03:47 PM
  #46  
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Humm so pop that out and get a BMS filter maybe work as good? But the tube still has the silencers and it won't have the sound I am sure a Vararam will. Mostly what I am after. I changed just the intake tub on my GMC Denali and it sounds mean-not even a different filter. Amazing how them tubs makes things quite.

Last edited by Johnsz51; 02-15-2019 at 03:48 PM.
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Old 02-15-2019, 04:07 PM
  #47  
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Yep , just an FYI thos are not so much silencers , they are Hemholtz resonators , these are to smooth the flow out for a better maf reading , the LS3 had a similar setup

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Old 02-15-2019, 04:26 PM
  #48  
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Originally Posted by JT Corvette View Post
maybe im missing something, but i dont see how this is going to get any airflow....the hood sits on top of it
Okay. Imagine the car driving. There's a ton of air hitting the hood. Air is hitting hood at maybe 20 degrees relative to the hood right? Where the roof is 0 degrees). Some of this air is pushing down on the hood, while most goes back to the windshield. The air is tying to go wherever it can, so it will fill cracks, voids, any hole it finds. This includes the gap between the hood and the fender. Once the air makes it in the gap, it's gotta go somewhere, usually back towards the windshield ya? But what If you got something sucking it in, like the intake, that air is going to go in that hole.

A similar thing happened to me when I had an open intake filter to the engine bay, I removed the radiator - to - hood scoop and when I floored the throttle, the intake actually started pulling air through the hood vent when naturally air goes out of it.


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Old 02-15-2019, 04:27 PM
  #49  
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Originally Posted by Dcasole View Post
Yep that's exactly my reaction when I took the plastic off and saw the hole I am still trying to figure out why it's there and why they designed a peice of plastic to cover it ...

Dave
Looks like access to the headlight plug so you can pull the headlight out.
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