Whoa I didn't even catch that at first glance!

Oh **** are you guys serious!? Yeah the bottom pic I can just tell its a 350 because the rear flares are more flat. But the other 2 pics so freakin hard to tell.

But on the Do-Luck website they state this bonnet is for Z34!

I think they call it Z334 not Z34. Like a Z33 made in to Z34, thus Z334.

So this hood won't work on a Z34? Was kinda keen on it.

Yes it can. Or so Bulletproof says. Shoot them a e-mail.

http://www.bulletproofautomotive.com...onnet-only-frp

This is what it says on Bulletproof site about the bumper and hood.

Cool!!

First tme I have seent the 370Z front conversion for the 350. Seen a R35 GTR conversion before for the 350.

You guys tickle me

Anyone on here have any for sale they haven’t installed. He seller sold mine after we confirmed.

You still want the rain shields?

Yup!!. I’m going to end up getting the vents anyway. Just waiting on your pay pal request to send the money.

Has anyone tried these out? I'm going to get my front end repainted/worked on soon and kind of wanted to pick up just the side vents to a least have some extra venting/cooling. Think it would still be worth it? I just don't know if I like the look of the center vent - although obviously it would be more functional.

370Z Hood Vent kit

Yep, a bunch of people.
http://www.the370z.com/exterior-inte...trackspec.html

LOL, yep there quite a few folks that have these including myself. They are a quality product!

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I want

Let me bring this thread up. I've been thinking about hood vents lately and I'm not set on doing it yet, so help me out with your thoughts.

I'd go with two different pairs of scoops, ones to intake the air, the others to release it.

These for the intake:
https://i.imgur.com/pZrLH29h.jpeg

and these two for release:
https://i.imgur.com/AMt3834h.jpeg

The positioning (excuse the rough sketch) would be as such (size somewhat correct)
https://i.imgur.com/4Zr2VTgh.jpeg

It seems to me like it would work from a functional perspective, and aesthetically I think it would be OK.

Any thoughts on why this idea is really bad?

Get the Tracspec. Make sure to get all three vents. The middle one removes a ton of heat front the radiator.

Hmm, those are going to cost an arm and leg shipped to me (Europe). Also, they don't seem to have an intake side, just exit direction. Is it as effective?

They work like a champ. I drive my TT 370z in over 100 deg weather with no problems. Without them, I would overheat in slow moving traffic for sure with the massive intercooler I have up front.

I have the Tracspec vents too. Work great.

Those 2 inlets you have at the rear won't work like you think.

Vented hood thread
 

Also skeptical about the two inlet vents at the back of the hood. Sure there is relatively higher pressure there at the base of the windshield but you want to be pulling air from the front of the car, through the coolers, and out the hood.

Trackspec vents are the go to, and they tell you where to place them for best cooling.

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The expensive vented carbon fiber hoods aren't that great either for how much you pay for them.

Prices seem to have increased by 30-50% despite the yen being weak
I got my Varis for mid-teens and now it’s over $2k

For pure function, trackspec vents are more efficient

I’m no engineer, but …yeah, those triangular shapes are what are called NACA ducts and are supposed to be the best shape for drawing air in

The hood I’ve seen for both the z34 and r35 all have those positioned further forward to suck in cold air

Any opening in the rear should be designed to let hot air out

^I was convinced this makes most sense, but then at the same time, a lot of stock cars like GTR, M3 and similar, have NACA ducts positioned to the back, near the windshield.

I'm still thinking about what to do here, I'll do some cardboard cutouts and see various fitments on the hood, both on the hood and beneath it, to see where it's easiest to cut, what seems to be good position to draw the air out, and what is aesthetically pleasing.

I don't want to get too far afield down "GTR hoods" but NONE of the reputable companies (high end JDM or OEM/Nismo/N-Attack) have the NACA ducts positioned at the REAR of the hood

They are much closer to the middle, if toward the front (usually in combination with additional release vents)

I've attached images of the Z1 Time Attack 370Z (custom) as well as a Super Taikyu Z34 (Ings+1 hood).

or we can use are brains

cold air in through the front
air flow front to back cools engine/removes heat
hot air escapes up and out the back, and possibly side if you have venting there

there's really no sense in putting an air INLET at the back of the hood, unless you have a convoluted physics defying setup underneath

but i don't have an engineering degree

My favorite part of the post.

Lol, I agree. And really, I really appreciate the input. The reason I'm mentioning gtr hood is the fact that while air goes over the car in a straightforward motion, doesn't mean that in an enclosed compartment it couldn't circle the other way around. And no, I'm not trying to complicate here, I'm just considering all options. Cutting the hood is a one way street, no going back, so I'm looking at ALL aspects.
I do think it makes sense to put the inlet first, then the outlet. I just gotta figure out a way to make it look good as well.

It’s cutting a stock hood off a mass produced 15 year old car. You aren’t hacking up an f40

If heat management is a actual goal then get the track spec vents and be done with it


You are making it more complicated


This platform is old. Problems have solutions now.

My favorite technical aerodynamics drawing. https://www.buildyourownracecar.com/...erBodyFlow.png

https://www.buildyourownracecar.com/...-and-design/2/

Well....yeah but no. My car in particular is 15 years old, but it has 20k miles. It's in mint condition with first paint. It barely has any rock chips. No need to do anything stupid on it. The mods I choose and do are well thought through and I don't plan on getting rid of the car in any near future, if at all (luckily, I have the luxury of being able to keep it regardless of other circumstances). So yeah, even cutting a hood on the mass produced old car, isn't just a "let's go" process for me, sorry.

buy another hood for track use

why are we making this hard

when your goofy vents, or worse, nonvented hood results in overheating on track, it won't really matter how important you think "first paint" is

The front bumper on my Nismo is chipped from doing track days.

Racing on a dirt oval will do that. :rofl2:

The guy in front decides to ride high on the curb. :shakes head: