who changed their hood when they got their fmic?
 

i was just wondering how many of you TII guys changed to the na hood when you got your fmic. i know you should block off the top mount one way or another. strictly looks wise..what do you prefer?

I think the 7 looks sexier without the hood scoop with the FMIC there...but to each their own.

I have the NA hood.

the sexiest thing about the FC is the turbo hood.
but as stated above, to each his own

^ No.

i still have the steel vented bonet but i have picked up an Aliminium egi bonet so weight is taking priority over looks.

Knightsport. :)

T2 hood sucketh.

N/A hood weighs 2 tons...

I'll stick with my TII hood anyday

besides what's wrong with a nice cool breeze on the top of the intake?

i still have my t2 hood...probably will only get rid of it for a reverse vent cf hood that uses the stock latch.

tru that/\

I have an alum NA hood... Not all NA hoods are heavy.

:rlaugh: at the "fresh air at the top of the intake!" :rlaugh: When was the last time you looked under your hood??? :rlaugh: AND :lol: and the guy who says the NA hood weighs a ton! :rlaugh:

I changed over to the NA hood. A lot of people get all bent out of shape over the TII hood. I loved it when I had the top mount and it was cool because it was fully functional. Once the SMIC was gone it was just useless and out of place (remember the scoop is offset). I actually like the fact that people use the TII hood on NA's because it makes the 7 seem slower than it is and when these retards on the street see me in my 7 with an NA hood they don't even bother me.

I still have the TII in the garage so I can sell it when the prices skyrocket again. I'm waiting on a guy to tell me if he can or can't sell me his vented hood. Either way the sleeper continues to roam the nights without being bothered.

i sold my spare aluminum TII hood for $250 ^_^

kept the TII hood but went carbon fiber

When I went with a FMIC I changed my TII hood....by stuffing foam in the scoop:)

I like the look of the scoop. Never blocked it off and I haven't had any problems.

I think the stock position of the scoop is actually pretty stupid. Its not very functional even for the TMIC. There's little to no "ram" effect in that location. The bumper is a much more logical area for it.

Im sure the Mazda engineers know what they are doing.

I actualy love the look of the TII hood so I just kept it.

maybe. They didn't seem to know very much considering the heating issues of the 3rd gen (which is more technologically advanced that the TII)

how hard is it to get a dent out of an aluminum TII hood? i just noticed a couple small ones close togethor on the back right corner..i dont know how they got there. the weird thing is i noticed them when i had my hood off and i was looking at it from the back..they are easily noticed from this angle but harder to see when looking at it from the front.

ever seen a subaru?

WTF does subaru have anything to do with Mazda?

Actually, if you take care of the car properly and keep the cooling system in check there arent any problems.

there HUGE hood scoop.

well, that goes for any car. The AST is prone to problems and so is the radiator with all it's plastic parts. The cooling on the FD is the number one killer and yes, I do understand that with maintenance it is all peachy keen, but in the end the FD IS MORE LIKELY to experience heating problems when compared to the FC.

Now the issue we're discussing is the hood with the scoop. STOCK FOR STOCK. If you use the whole "if you keep your cooling system in check everything is wonderful" argument then the main issue of "MAZDA KNEW WHAT THEY WERE DOING" is invalid. If MAZDA did indeed KNOW what they were doing then we wouldn't NEED too keep the cooling system in check, right?????

well, now that we established the obvious, again, what does the subaru scoop have to do with the TII scoop?

man you guys are funny.......or should i even say guys. hahha

everyone argues for what they have...."oh no you didnt!!!"

if you don't argue then we have a world full of lemmings. Imagine if no one argued opposing points(in reality people rarely speak up or stand up for what they believe in anymore). The last thing I want is to recreate and live in idiocracy.

http://www.rotorwiki.com/images/7/79/FCaeroprofile.jpg

Yeah, I'm sure they knew what they were doing.........

alright maurray povich... LOL

The T2 scoop has plenty of funcionality on a stock T2. If I'm not mistaken, dont you want the coolest, freshest air going to the inter-cooler? A ram hood does exactly that.

Once you go away from tmic, the hood loses funcionality. and could even create a problem with air circulation. The car/engine bays are designed to move air in a certain fashion. Ther are high and low presure areas that were designed for a reason. If you take away the tmic, air ramming through the hood could cause turbulance. or disrubt the flow that air was intended to take through the bay.

In short, if you starting messing with ducting and other forms of air movement through the engine bay, you better make sure you know what you are doing. Or else, you could over-heat your engine (see FD)

LOL. See above picture. There's no ram effect. :) Next theory please....

:uh: OK, please explain in detail the picture you posted as proof that the design is perfect. Please remember I'm not retarded so feel free to use the proper terms for your explanation.

P.S.
so, if it's not ram air then do tell me what it is you're trying to show me with pictures and NO words.

You do realize the drag coefficient of a stock FC is .29 right? That's very similar to a Corvette ZR-1, and is still well below the industry standard for sports cars even TODAY.

stylEmon nailed it. I can't believe this thread. :icon_no2:

Anyone notice the rubber seal under the hood, that SEALS around the intercooler? If that isn't forcing air through it, then I don't know what would. If you're running the TMIC, you won't find a better hood than the stocker, period. If you're running a FMIC setup, you'd do well to at least block off the scoop. It can disrupt the airflow through the bay, as previously stated. Ideally you'd run a reverse vented hood so the air can continuously pass through the bay.

What does Subaru have to do with Mazda? Could it be the fact that BOTH use a factory TMIC, and BOTH have rubber seals making sure they see the airflow they need? Hmmm.

Also the N/A (and TII) hoods were both available in either steel (~50lbs) or aluminum (~28lbs). So neither as a whole is superior, where weight is concerned.

Oh and what's wrong with "a nice cool breeze over the intake"? Well your intake MANIFOLD doesn't exactly need fresh air. ;)

I still don't know what he was trying to see by "ever seen a Subaru?"

yes they're both TMIC, both have hood scoops, and both have the rubber seals. What I'm trying to say is that he cannot compare a scoop that is raised 2-3" more than ours. That's like me comparing your cock with that of a black guy ;) (if you're offended then you have a small dick)

I've seen the subaru scoops (WRX AND STI) and they're shorter and taller than the TII scoop. SO no, I don't know what he's trying to say besides the fact that the ICs are mounted similarly.

The aerodynamic profile shows that right at the leading edge of the scoop air is being forced down on the hood into the scoop itself. Thats what the downward arrows represent. Look at the spoiler, same thing, downforce.

Why Subaru? It proves that what Mazda did with the top mount is an effective design, Subaru has been doing it with all its turbo boxer motors, same effect. Yea they look different but they do the same damn thing.

Well I know it's big, but I wouldn't exactly call it a "Subaru". ;)

And FWIW, the Subaru Impreza has an entirely different aerodynamic profile than the FC, so your arguement about size and placement of the scoop is irrelevant. When Subaru makes an Impreza with a .29 drag coefficient, then come talk to me. The scoop on a TII was placed in an optimal position for the profile of the car. And it was wind tunnel tested btw. Do you have a wind tunnel? ;)

how did a thread about functionality of the TII hood when removing the TMIC turn into a debate about mazda engineering, and whether or not they should have used that design? Obviously when using a FMIC, a reverse vent hood is the most efficient way of both A) Expelling heat and B) allowing more air to be drawn in through the front, due to the ability to expel at the top. I'm not sure about idiosyncrasies, but I sure hear some idiotic and totally pointless responses. P.S. it's not real precise to use a flow profile of an N/A when debating the placement of a TII hoodscoop, it's obviously going to be different.

I have the best of everything. FMIC, and an ALUMINUM NA hood (from a vert) :D

And a factory shift knob if I can ever find the damn thing. :)

Not sure how the coefficient factors into the ram-air of the scoop...... but it was my understanding that the picture shows a vacuum on the hood, pressure at the base of the windshield... Vacuum on the hood wouldn't be very good for a ram-air scoop - am I right?

Notice the vacuum decreases as it progresses up the hood. That means it approaches ambient levels the further up the hood it goes, thus still effectively forcing air into the scoop. Someone mentioned the "slope off" earlier. That's what they meant.

ambient levels are far from "ram-air". The front of the car where the radiator is at... thats ram air as depicted in the image. The hood, however, would actually be sucking air OUT. So.... if that was their intention; great, but shouldn't the scoop be facing the other direction?

That picture that you posted shows low pressure areas on the car. The car almost acts like a wing. You have air passing underneath of it and air passing over the top of the car. The air that takes the path over the top of teh car has to travel faster to meet up at the back. This creates area's of low pressure. What you see in the picture you posted.

In that last paragraph I described how an airplane flies. Low pressure above the wing and high pressure underneath of it. Bernoulli's principle


According to what your saying there isn't much air movement over the scoop.

I would like to invite you to hang onto the next airplane wing you see. When you get back tell me how the flow was over teh top of that wing :)

The scoop works at speed.

James

dUDE, GET A HOOD FROM A gxL OR gtu, ITS IN ALUMINUM AND WEIGHTS THE SAME AS A tii HOOD.

sry for caps.

I own the only 2 working FC's in the country...

it would cost me less to buy and ship a CF hood then a alum. one...

I ended up using a 2nd TII hood from my JDM front clip for the 2nd car..



as for those saying scoop doesn't have a ram air effect


after driving the car for awhile, remove the TMIC touch the manifold it's a scorcher..... the engine is damn hot... intake is heat soaked...

after i went to an FMIC... i could lean against the manifold with my hand and hold it there...

obviously a bunch of cool(er) air is being blasted directly on to the motor for it to stay cool enough to touch the alum...

I fail to see how this is a bad thing to me

Thats a pretty good explanation I suppose. I just don't understand why the arrows/pattern would be different around the radiator area...

So, explain the picture. What do the arrows mean? I've never seen this picture posted with any text describing it.

those arrows indicate the amount of sexy-ness radiating off various parts of the FC.