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Old 07-16-2009, 07:29 AM   #1
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Default Rear Hood Prop for Better Cooling in Import Tuner

There was an article in a ricer magazine which I believe was Import Tuner about raising the rear of a Miata hood a bit for better cooling. I know this is very hackneyed and a subject that has been beaten into ground beef like how most of your guys' sphincters look.

Anyway, there was an avg 13.5*F temp drop in intake and engine bay temperature being tested both moving (stop/go and freeway) and stationary.
They had 3 graphs w/ data listed.

I'm sure having the probe right at the cowl area probably skewed the results, but I thought it was interesting that an air filter over the header had such drastic drop in IATs.

I read it really fast since I didn't want to be seen reading this magazine so take it fwiw. The magazine is shitty.

For some reason, I thought there was some anecdotal evidence that claimed the contrary. It still looks gay.
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Old 07-16-2009, 09:16 AM   #2
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do you want air to go through the radiator or get sucked through the back of the hood for the intake?

Who cares if the header is hot? I've never understood why the NA idiots are so concerned with header temps...its hot because exhaust gas goes through it.
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Old 07-16-2009, 10:03 AM   #3
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I prefer my engine bay at a medium rare 400*F vs 415*F. I also like my cooling system to work overtime.
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Old 07-16-2009, 10:22 AM   #4
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Did they bother comparing coolant or oil temp effects in this article?
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Old 07-16-2009, 10:59 AM   #5
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I like for my exhaust parts to stay nice and cool because coolness is power.
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Old 07-16-2009, 11:18 AM   #6
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how can i regulate my engine bay to 350 degrees so i can cook dinner, maybe a remotely controllable variable hood spacer?
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Old 07-16-2009, 11:23 AM   #7
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hood spacers make u look cool
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Old 07-16-2009, 11:24 AM   #8
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Quote:
Originally Posted by Mach929 View Post
how can i regulate my engine bay to 350 degrees so i can cook dinner, maybe a remotely controllable variable hood spacer?
don't laugh, that's how I used to heat up my tacos in the morning when I worked construction. wrap in foil, set on manifold.

I wouldn't raise the rear of my hood on the Miata if It gave me 10hp and a *******. That **** looks gay, and it's been proven to totally fuxor heat exchanger airflow.
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Old 07-16-2009, 11:28 AM   #9
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Quote:
Originally Posted by hustler View Post
I like for my exhaust parts to stay nice and cool because coolness is power.

Hyper?
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Old 07-16-2009, 11:36 AM   #10
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Guys... don't knock it so much.
I had an old turbo car of mine hood propped. Helped with cooling issues.

THE biggest proof to me that it worked was come winter time... I couldn't get the car to warm up for the life of me with the hood propped. Put hood back to normal and boom... instantly back to normal heat up time.
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Old 07-16-2009, 11:37 AM   #11
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Quote:
Originally Posted by Splitime View Post
Guys... don't knock it so much.
I had an old turbo car of mine hood propped. Helped with cooling issues.

THE biggest proof to me that it worked was come winter time... I couldn't get the car to warm up for the life of me with the hood propped. Put hood back to normal and boom... instantly back to normal heat up time.

Yeah, it works great when your NOT moving.
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Old 07-16-2009, 11:41 AM   #12
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Quote:
Originally Posted by levnubhin View Post
Yeah, it works great when your NOT moving.
My heat up time was immediate start and drive. 10 minute drive to the train each day. The drive was consistant and on the go the entire time.

Thanks for playing.
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Old 07-16-2009, 11:52 AM   #13
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Quote:
Originally Posted by Splitime View Post
My heat up time was immediate start and drive. 10 minute drive to the train each day. The drive was consistant and on the go the entire time.

Thanks for playing.
I would usually say I don't believe you....but your car is TOO ******* COOL to not listen.


The only way this is working is if, while moving, air is exiting the sides of the hood (small gap between fenders and hood) en masse. It would have to do so enough to offset the air being forced in at the cowl.
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Old 07-16-2009, 12:03 PM   #14
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Quote:
Originally Posted by Splitime View Post
Guys... don't knock it so much.
I had an old turbo car of mine hood propped. Helped with cooling issues.

THE biggest proof to me that it worked was come winter time... I couldn't get the car to warm up for the life of me with the hood propped. Put hood back to normal and boom... instantly back to normal heat up time.
Have you forgotten about the giant canal between the firewall and the endge of the hood/windshield that other cars don't? Yeah.. minor detail there.



Popped hoods are still gayer than having a unicorn dancing on a rainbow as a bumper sticker.
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Old 07-16-2009, 12:04 PM   #15
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Quote:
Originally Posted by Doppelgänger View Post
Popped hoods are still gayer than having a unicorn dancing on a rainbow as a bumper sticker.

holy crap, where you can you buy those?!
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Old 07-16-2009, 12:24 PM   #16
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can anyone here airbrush?!
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Old 07-16-2009, 12:24 PM   #17
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okay now im just confused:

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Old 07-16-2009, 12:27 PM   #18
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Quote:
Originally Posted by Mach929 View Post
how can i regulate my engine bay to 350 degrees so i can cook dinner, maybe a remotely controllable variable hood spacer?
Quote:
Originally Posted by Braineack View Post
Hyper?
Guys, I have a revolutionary idea for baking while you drive. Its never been done before and I can't discuss it, but trust me, its far superior to anything you've ever thought of.
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Old 07-16-2009, 12:54 PM   #19
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And no I haven't forgotten about the area between the engine bay and the windshield.

All I have to offer is something that WORKED from my experience. Nothing more. Did I saw it was working a track speeds? Or claim it gave 20 HP?

I simply offered what was a real experience of mine that to me showed it did create a difference. Warm up time differences to me showed a change in overall temp. And it was a simple before after with 1 single change to control what happened.

Look at my car btw.. I could give a **** what something looks like btw... I just care if the changes/holes/cuts/slashes work.
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Old 07-16-2009, 01:53 PM   #20
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was the car you mentioned doing this on a Miata or another type of car? I'm assuming it's another make/model....
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