Air Intake
Thread Starter
Heel & Toe
Joined: May 2020
Posts: 22
Likes: 6
From: Florida
Air Intake
What is the opinion of deleting the radiator shroud in order to put an aftermarket air intake. If I do this should I least in close the box at the top to keep engine heat out or were they still make too much turbulent are for the radiator.
Safety Car
Joined: May 2011
Posts: 3,807
Likes: 508
From: Oshawa, Ontario
Most of the cooling is because of the rad shroud surrounding the fan.Without it your cooling would be very ineffective.Let us know if your coolant temperatures increase more than another 100F once you do this mod and how long you are able to drive it before it boils over.
Last edited by irok; May 19, 2020 at 07:39 AM.
Race Director
Joined: Dec 2013
Posts: 12,502
Likes: 3,629
Front end, including air dam, it set up to push air through the radiator. Hence fresh air in the the front, and hot out out the bottom of the engine bay.
Hell, even the air dam on the bottom is there to create a high pressure zone on the the front, and low pressure zone on the back side of the radiator area, so the air in the engine bay area dumps out the bottom of the engine bay. Also, this system allows the hood to hold steady at speed (not excess engine bay engine air pressure), unlike a mustang that has so much air going into the engine area at speed, it trying to blow the hood off at 150mph isntead.
As for even propping the air shroud in the front of the stock air filter to allow fresh air in that way, can end up with engine surging if the shroud is propped too far open instead.
As for C7, direction of the major radiator air flow was changes, and isntead of all of it directed out the bottom of the car back, was directed up through the hood and back isntead (what gave the C7 some actual down force to begin with, since the C6 has lift instead).
So to sum it up, over all bad idea.
Hell, even the air dam on the bottom is there to create a high pressure zone on the the front, and low pressure zone on the back side of the radiator area, so the air in the engine bay area dumps out the bottom of the engine bay. Also, this system allows the hood to hold steady at speed (not excess engine bay engine air pressure), unlike a mustang that has so much air going into the engine area at speed, it trying to blow the hood off at 150mph isntead.
As for even propping the air shroud in the front of the stock air filter to allow fresh air in that way, can end up with engine surging if the shroud is propped too far open instead.
As for C7, direction of the major radiator air flow was changes, and isntead of all of it directed out the bottom of the car back, was directed up through the hood and back isntead (what gave the C7 some actual down force to begin with, since the C6 has lift instead).
So to sum it up, over all bad idea.
Safety Car
Joined: May 2016
Posts: 4,644
Likes: 1,829
From: Erlanger, Kentucky
Best options are going to be getting a Haltech intake that has a shroud or the Callaway Honker.
With the Callaway Honker they have two versions of the intake. One of them, the radiator shroud is modified so that air is pulled into the intake from either side but still from the engine bay; this one does not require a tune. The other Callaway also modifies the shroud but this one pulls air through the modified shroud. This one does require a tune.
With the Callaway Honker they have two versions of the intake. One of them, the radiator shroud is modified so that air is pulled into the intake from either side but still from the engine bay; this one does not require a tune. The other Callaway also modifies the shroud but this one pulls air through the modified shroud. This one does require a tune.
Instructor
Joined: May 2019
Posts: 249
Likes: 80
From: El Paso Texas
I have the Honker it requires a hole in the shroud and positions the filter in the shroud outside of the car. This allows the intake air to be all fresh air from the outside. This is the best way to keep intake temps down. Removing the shroud would disrupt the airflow and cause more heat soak all around.
Thread Starter
Heel & Toe
Joined: May 2020
Posts: 22
Likes: 6
From: Florida
I have the Honker it requires a hole in the shroud and positions the filter in the shroud outside of the car. This allows the intake air to be all fresh air from the outside. This is the best way to keep intake temps down. Removing the shroud would disrupt the airflow and cause more heat soak all around.
Thread Starter
Heel & Toe
Joined: May 2020
Posts: 22
Likes: 6
From: Florida
Update
As of now I have about a 75% square hole cut in the center of the shroud for about a week now and I'm not seeing my temperatures rise anymore than normal. Around town about 45 miles per hour I have around a 190 degrees. sitting in idling at 93 degrees ambient temperature here in Florida today it hit 196 Fahrenheit. I am awaiting the vararam and we'll put it on and let you know how temperatures are from that point on but did you really think I was going to jump a hundred degrees in temperature from Norm?
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Thread Starter
Heel & Toe
Joined: May 2020
Posts: 22
Likes: 6
From: Florida
II don't see anywhere I said fan shroud my first post was radiator shroud and the second post just said shroud referring back to the radiator shroud. So were you thinking I meant fan shroud and that's why you or someone was saying I might boil over
Thread Starter
Heel & Toe
Joined: May 2020
Posts: 22
Likes: 6
From: Florida
Okay okay good cuz you scared the heck out of me about the high temperatures. So how bad is it delete that all together or just leave the square I have in it and put the intake through it for the baron. The whole like cut might still be kind of big and have some openings in it once I get the intake in it. To put a new one back in and then recut it would cost about five hundred bucks taking the bumper off I believe. I originally had a different air intake that did not fit for the hole was cut a little too big
Pro
Joined: Jul 2007
Posts: 536
Likes: 117
From: New Braunfels Texas
You can replace the radiator shroud without pulling the bumper cover. It is a bit of a PITA though. New shroud is probably under $100. Hopefully you can just use yours with the Vararam. I believe mine runs a little warmer with the Vararam but the power is worth it...
Thread Starter
Heel & Toe
Joined: May 2020
Posts: 22
Likes: 6
From: Florida
Thread Starter
Heel & Toe
Joined: May 2020
Posts: 22
Likes: 6
From: Florida
Safety Car
Joined: May 2011
Posts: 3,807
Likes: 508
From: Oshawa, Ontario
Fireid13-With the Vararam you should cut the rad support baffle as close as you can to the supplied template for best results.My car picked up almost 4/10's with it and temperatures never increased.Summer's here can get quite humid but seldom get above 105F.Have never seen Humidex numbers over about 140F here.Even in Florida you won't have issues with heat.You are able to remove the rad support baffle to cut it but it tears the hell out of your hands removing it.Definitely worth it
Last edited by irok; May 21, 2020 at 10:03 PM.