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Old 07-21-2014, 08:16 PM   #1
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Default Garage Vary CF hood installed- pics

Picked this up from the painter today. Left the bits of exposed carbon fiber to thrill both teenagers and Miata-nuts alike. Truth is, the car will usually have the stock hood in place, but for track days this one should provide superior cooling. New hood pins are on order and I'm picking up the hardtop tomorrow- they still have to re-install the rear glass after painting.




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Garage Vary CF hood installed- pics-68cd992c-34ca-40ec-aa3b-346aa79c8843_zpsrh6v40jm.jpg   Garage Vary CF hood installed- pics-406996ff-e109-45f7-afc7-69a33e68dc6a_zpszxpllarf.jpg   Garage Vary CF hood installed- pics-9dd1639e-6337-4377-89bb-c4b7f424a49a_zpsfllshpf6.jpg  
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Old 07-21-2014, 08:24 PM   #2
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Neat.
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Old 07-21-2014, 08:26 PM   #3
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Looks great.

I spy a KTM and what looks like other motorcycle goodies.
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Old 07-23-2014, 02:25 PM   #4
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Have you done a track day since the hood install? Any water temp reduction?
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Old 07-23-2014, 05:17 PM   #5
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I have not. This is prep for the 1st track day with this car in October. I can say that the car does not have a cooling issue currently and I've got a stock radiator, A/C, intercooler and minimal ducting. Not sure why...

But I've got the GV hood and have ordered a FM crossflow and shrouds. That with an oil cooler will be installed prior to the track day so I'm hoping that not having cooling issues will continue.

I'd love to run a test- underhood, oil and coolant temps with all stock, just hood, just FM radiator etc but that seems like a LOT of work when I already know the FM radiator and vented hood should prevent any issues.
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Old 07-23-2014, 05:35 PM   #6
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What track temps are you seeing and are you using an aftermarket gauge or the stock one?

I meant to ask what temps you are seeing now not on track! Sorry

Last edited by tomiboy; 07-23-2014 at 11:09 PM.
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Old 07-23-2014, 07:34 PM   #7
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Its not been on the track yet. Stock gauges but I'm changing
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Old 07-23-2014, 08:52 PM   #8
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Quote:
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What track temps are you seeing and are you using an aftermarket gauge or the stock one?
Sean, looks awesome. Any plans for dealing with rain and the water that looks like it'll end up in the engine bay?

Tomiboy, I saw a ~15* lower water temps on track by venting the center - front section of my stock hood (followed the under hood bracing and it almost looks like the Viper intake vent). About 2/3 the opening that Sean has. Very good ducting, Mishimoto 55mm, stock fans. I however have some kind of cooling issue, possibly weak water pump.

Read my temps with an OBDII scan gauge.

Are you thinking of venting yours?
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Old 07-23-2014, 11:02 PM   #9
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Carnut, Your car looks awesome! The reason I ask about the gauges is because I installed gauges and an FM crossflow prior to installing my Rotrex and saw 190* water temps on track or street, AC on or off. Once I installed an intercooler and Rotrex oil cooler I was at just under 210* on street and over 210* on track, BUT my factory gauge was still in the EXACT same spot. By the time it does move your temps are HIGH. With all the prep you are doing you'll probably be fine

Rick, yes I want to vent mine. I am pleasantly surprised you saw that noticeable decrease in temps! I was making templates in the garage tonite for the 3 openings just behind the radiator in the hood. When I put the templates on the hood I didn't like how all 3 looked, but the center one would look very good. What did you cover the opening with? Got a picture?
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Old 07-24-2014, 12:29 PM   #10
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Sean, looks awesome. Any plans for dealing with rain and the water that looks like it'll end up in the engine bay?


Read my temps with an OBDII scan gauge.

The rain would end up pouring right in front of the engine and behind the radiator. Don't see an issue with this but I'm 70% sure I'll run the stock hood everywhere but the track. The GV hood just feels a little too "rice" for me. Maybe I'll get used to it.

OBD2 giving you accurate temp readings? Using a Scangauge?
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Old 07-24-2014, 01:18 PM   #11
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Quote:
Originally Posted by carnut169 View Post
The GV hood just feels a little too "rice" for me. Maybe I'll get used to it.
I feel like the two exposed CF portions add to this ALOT.
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Old 07-24-2014, 01:34 PM   #12
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Maybe true, but it's the massive vent that's throwing me over the edge. Needed, yes. But most people will look at this like the fake portholes you see along with giant rear wings...
The exposed CF... not many CF GV hoods out there. I do see your point. My painter would probably have a fit if I asked him to cover them up.

All things that actual track cars need, and people who want their regular street cars to look like race cars have. And that I hate.
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Old 07-24-2014, 01:50 PM   #13
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I'd rock this hood CF or not. It's the vent I want, the look is secondary.

Still can't bring myself to cut my stock hood for the Mini vent I bought a while back.
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Old 07-24-2014, 02:30 PM   #14
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Quote:
Originally Posted by Ryan_G View Post
I feel like the two exposed CF portions add to this ALOT.
+1

I don't think the hood opening is that noticeable and you'll be glad you have it while on track. It's hard to concentrate on driving hard when you are constantly concerned about going overtemp!
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Old 07-25-2014, 12:01 PM   #15
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Originally Posted by carnut169 View Post
The rain would end up pouring right in front of the engine and behind the radiator.

OBD2 giving you accurate temp readings? Using a Scangauge?
From experience, rain on the front of the engine isn't a good thing. Pulleys quickly get rust spots and the alternator does not like being wet. I have gotten caught in the rain a couple of times with my vented hood and I cringe each time it happens. Your call, but I actually carry a plastic piece and painter's tape to cover my vent if it looks like it's going to rain. (I also run the stock hood when not fighting Atlanta's summer time - 100* and 200% humidity).

OBD2 temps came from an ELM327 w/ bluetooth "reader" and Torque on an andriod phone. Worked great and matched exactly what the car's ECU was seeing. Very close to the way my MS3 reads.
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Old 07-25-2014, 12:16 PM   #16
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I didn't like how all 3 looked, but the center one would look very good. What did you cover the opening with? Got a picture?
I went to the Home Depot speed shop and found that the mesh screen for the bottom of a paint bucket was a good size (and ~$4). I epoxied it to the bottom of the hood (cut to the same shape as the opening and slipped under the hood support frame).

Pix:

Ignore the gap at the front, hood was not latched


Close up of the vent. The orange peel is due to my rattle can krylon paint job of a previously green hood. Looks good from 5 feet.

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Old 07-25-2014, 01:13 PM   #17
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Looks good, but don't you need a lip at the front of the opening to get any real extraction benefits?
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Old 07-25-2014, 01:28 PM   #18
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Quote:
Originally Posted by Rick02R View Post
From experience, rain on the front of the engine isn't a good thing. Pulleys quickly get rust spots and the alternator does not like being wet. I have gotten caught in the rain a couple of times with my vented hood and I cringe each time it happens. Your call, but I actually carry a plastic piece and painter's tape to cover my vent if it looks like it's going to rain. (I also run the stock hood when not fighting Atlanta's summer time - 100* and 200% humidity).

OBD2 temps came from an ELM327 w/ bluetooth "reader" and Torque on an andriod phone. Worked great and matched exactly what the car's ECU was seeing. Very close to the way my MS3 reads.
Thanks. Really don't drive the car when its raining or super hot. This will be a track hood for the most part. I do like your suggestion, but I'd have a pool on my hood! Maybe I'dd design a drain hose to fit if I get caught out.
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Old 07-25-2014, 01:45 PM   #19
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That actually looks good!!
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Old 07-25-2014, 01:51 PM   #20
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Thank Tomi.

Sean, I did consider that hood for a while, but couldn't come up with a good drain and agree that a pool of water is no good. :-)

rleete, the reason for the lip at the front is to create a low pressure zone and draw air out. much reading on MT.net indicates that the location of my vent is already a pretty low pressure zone and therefore no need for a lip.
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