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DIY: Hood Ventilation Mod

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Old 08-04-2007, 09:59 PM
  #76  
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Well, my idea is to cut tiny vents in the "lip" of where the rotor triangle in the hood rises, and backing them with some aluminum mesh. I just need to verify how structrual that area is, and if nessesary, reinforce it. But that will add a lot of weight, so I go back to looking at the Seibon TS-II carbon fiber hood and painting it.
Old 08-05-2007, 01:52 AM
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Ugh, I could have sworn I posted about the hood tilt mod about a week ago without any previous mention of it. You guys sure act fast haha, washers under the bolts work as well...
Old 08-05-2007, 02:21 PM
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With this thread as an inspiration I went and did this mod today with a slight variation. If you take out the weather strip carefully by squeezing the clips you can use the holes as mounting points for rubber bumpers. I got a bunch of these 3/8” thick bumpers from Home Depot along with some rubber washers to make them thicker and attached it with #10 machine screws. I will paint them black and it will almost look OEM. It was only in the mid 80’s today so no real way to test it. But If I want to It will be easy to take them out and replace the strip.
Attached Thumbnails DIY: Hood Ventilation Mod-100_4489.jpg   DIY: Hood Ventilation Mod-100_4488.jpg   DIY: Hood Ventilation Mod-100_4490.jpg   DIY: Hood Ventilation Mod-100_4494.jpg  
Old 08-05-2007, 05:13 PM
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7/8" thick according to the packaging ?
Good idea Expo
Old 08-05-2007, 05:18 PM
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Originally Posted by Brettus
7/8" thick according to the packaging ?
Good idea Expo
That is the width of the base.
Old 08-05-2007, 05:35 PM
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Originally Posted by tiltmode43
Ugh, I could have sworn I posted about the hood tilt mod about a week ago without any previous mention of it. You guys sure act fast haha, washers under the bolts work as well...
This was my thoughts as well. I am going to buy some whick washers and bolts and see how this goes.
Old 08-06-2007, 03:43 PM
  #82  
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Real Freakin' Wisdom

Originally Posted by SoFL_RX8
This thread reminds me of an old saying...

"Arguing over the internet is like the Special Olympics...you may win, but in the end youre still just a retard."
I have no doubt in my mind that MM and Rotorrocks are correct, but untill we get a thermo-cam in action shot of the engine cowl and inside the engine bay Mac is gunna fight this one to the death. Just give up on him, hes not worth proving anything to obviously, and youre only debasing yourselves by reacting to his idiocy. You know youre right, and anyone with half sense knows youre right... who cares if some stubborn person wont bite the bullett and admitt theyre wrong?

"Those who mind dont matter, and those who matter dont mind."

Why is it, that you all continue to act like dweebs...Why????
Old 08-06-2007, 05:41 PM
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this is as entertaining as watching a herd of buffalo following its leader off a cliff... LOL
Old 08-07-2007, 10:09 AM
  #84  
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Originally Posted by r0tor
this is as entertaining as watching a herd of buffalo following its leader off a cliff... LOL
Oh, I see you are back.
Did you do the mod yet?
I am pretty sure it will make things worse, or at the least make no difference, just for you.
Old 08-07-2007, 10:52 AM
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Originally Posted by rotorocks
Oh, I see you are back.
Did you do the mod yet?
I am pretty sure it will make things worse, or at the least make no difference, just for you.
i did do the yarn test to verify it was a sham... and it is

... and for the record I have the tein hood dampers which means my hood is slightly raised and weather striping near the fenders was removed for the last year or so

have a good day...
Old 08-07-2007, 01:32 PM
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Originally Posted by r0tor
i did do the yarn test to verify it was a sham... and it is
You should get together with DragonFC3S. Am I going to have to make a video for you, too?
Old 08-07-2007, 02:31 PM
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He'll be back in a couple of days.
It is people like him that make this forum fun.
Old 08-11-2007, 06:49 PM
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Originally Posted by MazdaManiac
Well, looking at your "rice" puke listing in your SIG versus your actual "rice" CF boot/bonnet, you might be mistaken as such.
Oh, Man ...... I can't believe that. You made me laugh out loud!
Old 08-12-2007, 01:04 AM
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Originally Posted by Razz1
Oh, Man ...... I can't believe that. You made me laugh out loud!
Does it really take you a week to catch up on this stuff or just that long for it to sink in?
Old 08-12-2007, 06:45 AM
  #91  
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Can you get rubber buffers like the ones at the front of the bonnet(screw type,but smaller version) they would look nice & neat when placed in the holes left when removing the rubber strip
Old 08-14-2007, 04:28 PM
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Originally Posted by stuartm
Can you get rubber buffers like the ones at the front of the bonnet(screw type,but smaller version) they would look nice & neat when placed in the holes left when removing the rubber strip
You can use whatever you want as long as it pries the hood up about 1/2 - 3/4"


Originally Posted by auzoom
This was my thoughts as well. I am going to buy some whick washers and bolts and see how this goes.
Washers will raze the corners as well... If it's a 1/4" might not be a big deal, but 3/4" will look kind of odd don't you think?
Old 08-14-2007, 05:13 PM
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You don't need to get the rear opening up much at all.
I am using 1/2" thick hard foam blocks with adhesive.
The total opening at the cowl is probably 1/4".
As openings go, the cowl interface is pretty huge, so very little lift is needed.
Old 08-14-2007, 07:45 PM
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Dumb question maybe, but are there any drawbacks to this mod involving harsh weather? It was sealed from the factory for a reason right? What about heavy rain?
Old 08-14-2007, 07:49 PM
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One drawback could be that you supply hot air from engine bay into the air con inlet . Also as someone suggested - if you had an exhaust manifold leak it could be dangerous ....
Old 08-14-2007, 08:03 PM
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Wow. I feel for you guys in AZ.

I've been watching my water temps (odb2 and racing beat gauge pod) and I usually top out at 200F. A few times I think I hit 210. Oddly enough, on the highway. In city, it drops down to 180-190. It's consistent enough that if I tried this out, I'd notice if it changed temps....

I don't think I'd go as far as putting in blocks to bend the hood open a half inch though.
Old 08-14-2007, 09:10 PM
  #97  
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I just did this mod ala Expo1 with the rubber door stoppers. very quick and easy and reversible if you don't like it. The hood bulges up a bit from the back so I may cut down the door stops a bit until I get it where I like it.

In my book this seems like an easy way for a little cooling insurance.

Thanks guys!
Old 08-14-2007, 10:15 PM
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Originally Posted by MazdaManiac
You don't need to get the rear opening up much at all.
I am using 1/2" thick hard foam blocks with adhesive.
The total opening at the cowl is probably 1/4".
As openings go, the cowl interface is pretty huge, so very little lift is needed.
That's probaly why the temp drops were so obvious for me.
Iactually pushed it up a good 1/2"

Originally Posted by mysql101
Wow. I feel for you guys in AZ.

I've been watching my water temps (odb2 and racing beat gauge pod) and I usually top out at 200F. A few times I think I hit 210. Oddly enough, on the highway. In city, it drops down to 180-190. It's consistent enough that if I tried this out, I'd notice if it changed temps....

I don't think I'd go as far as putting in blocks to bend the hood open a half inch though.
Heh... But then you don't put a 100 miles on your car every day, and you drive around with Mazsport cooling fan kit.

Last edited by rotorocks; 08-14-2007 at 10:21 PM.
Old 08-14-2007, 10:28 PM
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Originally Posted by rotorocks
That's probaly why the temp drops were so obvious for me.
Iactually pushed it up a good 1/2"
Quite possible.

On my trip up and back to Salt Lake over the weekend, I was driving through 100+ temps with the A/C blasting, in boost at >mile altitudes and my coolant temps peaked out at 220.
Before the various proactive cooling modifications, this sort of behavior was simply not possible for me to attempt.

Last edited by MazdaManiac; 08-14-2007 at 10:31 PM.
Old 08-23-2007, 08:27 AM
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Expo do you have washers underneath your rubber bumpers? It kind of looks like that from the picture, but you can''t tell. Exactly how tall are those rubber bumpers that you are using?

I also think thumb screws would be best with this mod, to make it even easier to remove the rubber bumpers or put them back on.


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