Free Hood Vent Mod - No Cuts or Tools Required - Pontiac G8 Forum: G8 Forums - G8Board.com
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post #1 of 106 (permalink) Old 07-28-2008, 02:42 PM Thread Starter
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Free Hood Vent Mod - No Cuts or Tools Required

Making a GRRRR8 mod a little easier This is not a "Ram Air" mod, This mod will help in keeping the hot engine air away from your MAF sensor and allows your engine bay to vent.
With this mod, you should avoid parking uphill in the rain and don't follow closely in the rain. If you park on a flat surface or down hill and drive properly, you shouldn't have any problems.

1. Remove the rubber inserts from the inside of the hood. Please note, first picture is post mod with rubber inserts.

You can leave the rubber inserts out if you choose for more heat release.

2. Remove the hood vents, which lift out (or you can push them from the inside of the hood). Lift the outside edge (clip) and run you fingers along the inside of the hood vent to the other edge (clip) and lift. The back will lift up and then the front will slide out.



3. Remove black plastic backing from hood vents and leave off. There are small clips at each end. You will need to pull one side off first, the other will follow.

4. (Skip to Step 6 second post for mod w/no rubber inserts) Switch sides of rubber inserts (right side to left and left side to right) if you choose to reuse them.
5. Place rubber inserts into the top of the hood back in the same openings, just upside down. Place the long side of the rubber insert under the metal lip at the front of the hood vent opening. You will need to press them back into the opening, don't be scared. Just a little pressure and they pop back in perfectly.


Push the rubber vent down into the opening.

See post #2 for final instructions



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Last edited by SRG963; 07-31-2008 at 03:14 PM.
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post #2 of 106 (permalink) Old 07-28-2008, 02:42 PM Thread Starter
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6. Place the hood vents back where they came from.

When you put the hood vents back on, fit them in at the front before you push down to clip them in. This will avoid them sticking up.

7. Test new mod!




8. After removing the hood vents a dozen times, I've noticed them sticking up a bit on the corners. If you have this problem, there is a simple fix, but it may require a screwdriver or knife.

There are 2 metal clips on the back of each vent that need to be adjusted.

In the center of each metal clip, and on each side, there is a center piece of metal that needs to be bent out just a little
and may need to be pushed down to snug up the connection.

Take a small flat head screwdriver and place the tip behind the center metal piece and gently bend it back out.

You only want to do this just a little bit, that's all she needs.

You will bend a total 4 clips (2 on each vent).







and for anyone who does this mod without the rubbers, I drove in this for an hour

and this is how the engine bay looked

water only got on the box, so really there isn't much to worry about.



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Last edited by SRG963; 07-31-2008 at 04:32 PM.
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post #3 of 106 (permalink) Old 07-28-2008, 02:46 PM
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Good write up. I did the same mod today except I stuffed them under the hood liner. Didn't think to do it your way, good call, I'll have to fix.
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post #4 of 106 (permalink) Old 07-28-2008, 02:51 PM
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Quite the explosion of posts on this subject... Is there really any significant benefit to this?

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post #5 of 106 (permalink) Old 07-28-2008, 02:54 PM
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It mostly helps let the hot air out from the engine bay. Helps with faster cool downs.
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post #6 of 106 (permalink) Old 07-28-2008, 02:54 PM
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Let me be sure I understand.. the pieces referred to as "plastic backing" are not put back on, right?


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post #7 of 106 (permalink) Old 07-28-2008, 02:54 PM
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I did that 1st, but my scoops would not sit flat/flush. The purpose is heat extraction.
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post #8 of 106 (permalink) Old 07-28-2008, 02:54 PM Thread Starter
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Quote:
Originally Posted by foreosu View Post
Quite the explosion of posts on this subject... Is there really any significant benefit to this?
I've taken off my engine cover and with the hood mod, my car is much cooler now at shut off. I drive about 30 miles each way, and parking in the garage, I can tell a difference.

Yes, there are many posts.....I am just trying to make it easy



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post #9 of 106 (permalink) Old 07-28-2008, 02:55 PM Thread Starter
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Quote:
Originally Posted by wreckwriter View Post
Let me be sure I understand.. the pieces referred to as "plastic backing" are not put back on, right?
Yes, you are correct sir



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post #10 of 106 (permalink) Old 07-28-2008, 02:56 PM
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Cool. Thanks!

Do you get water spots on the engine after driving in rain? I assume so?


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post #11 of 106 (permalink) Old 07-28-2008, 02:57 PM Thread Starter
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Quote:
Originally Posted by GRRRR8 View Post
I did that 1st, but my scoops would not sit flat/flush. The purpose is heat extraction.
Just making sure that rubber lip is under the metal lip is key. Also you have to press down a bit to get it to snap back into place and sit flush.



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post #12 of 106 (permalink) Old 07-28-2008, 02:58 PM
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Quote:
Originally Posted by SRG963 View Post
I've taken off my engine cover and with the hood mod, my car is much cooler now at shut off. I drive about 30 miles each way, and parking in the garage, I can tell a difference.

Yes, there are many posts.....I am just trying to make it easy
Sorry, I meant is there any real benefit to the mod (not your additional post). The more the merrier!!

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RotoFab CAI, Pace Setter long tube headers,
X-Pipe, Hooker Maxflow Axlebacks waiting to be installed, Cincy Speed dyno tune.

355 rwhp/370 lbs ft tq.

30% Tint, V8 6.0 Litre badges, Pontiac lettering debadge on the trunk
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post #13 of 106 (permalink) Old 07-28-2008, 03:01 PM Thread Starter
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Quote:
Originally Posted by wreckwriter View Post
Cool. Thanks!

Do you get water spots on the engine after driving in rain? I assume so?
I've taken it to a "touchless" carwash to test and driven threw rain. (please don't start posting about this, I know I know, I only did it to test this mod. I wash by hand only!)

There was not a single drop on my engine! The engine might get a little more dust, but that's about it.

You should avoid parking uphill in the rain and I wouldn't drive closely behind people in the rain with this mod.



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Last edited by SRG963; 07-28-2008 at 06:56 PM.
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post #14 of 106 (permalink) Old 07-28-2008, 03:02 PM
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Quote:
Originally Posted by SRG963 View Post
I've taken it to a "touchless" carwash to test and driven threw rain. (please don't start posting about this, I know I know, I only did it to test this mod. I wash by hand only!)

There was not a single drop on my engine! This mod is flawless
Wow, excellent! Thanks.


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post #15 of 106 (permalink) Old 07-28-2008, 03:05 PM Thread Starter
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Quote:
Originally Posted by wreckwriter View Post
Wow, excellent! Thanks.
Now don't go lifting up your hood while your car is wet. I did that before the mod, and water dripped all over my engine



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post #16 of 106 (permalink) Old 07-28-2008, 03:11 PM
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Quote:
Originally Posted by SRG963 View Post
Now don't go lifting up your hood while your car is wet. I did that before the mod, and water dripped all over my engine
Been there, done that


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post #17 of 106 (permalink) Old 07-28-2008, 03:15 PM Thread Starter
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Quote:
Originally Posted by foreosu View Post
is there any real benefit to the mod?
No HP gains from this mod but

Keeping your engine as cool as possible will give you more power and will allow you better repeat performance.



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post #18 of 106 (permalink) Old 07-28-2008, 03:15 PM
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Quote:
Originally Posted by SRG963 View Post
Just making sure that rubber lip is under the metal lip is key. Also you have to press down a bit to get it to snap back into place and sit flush.
I even put tiny notches and it would not sit flat.
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post #19 of 106 (permalink) Old 07-28-2008, 03:17 PM Thread Starter
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Quote:
Originally Posted by GRRRR8 View Post
I even put tiny notches and it would not sit flat.
Maybe yours is bigger than ours? Vent Envy

It's the same hole/size, just the opposite side



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Last edited by SRG963; 07-28-2008 at 03:21 PM.
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post #20 of 106 (permalink) Old 07-28-2008, 03:21 PM
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Quote:
Originally Posted by SRG963 View Post
Maybe yours is bigger than ours? Vent Envy

It's the same hole size, just the opposite side
It is weird. I looked at it and said this will be easy. and the pass. scoop was 1/8 in up, WTF! I kept on and on and finally I said [email protected]# it! I do have 2 new scoops at the house for it .
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