RX7Club.com - Mazda RX7 Forum

RX7Club.com - Mazda RX7 Forum (https://www.rx7club.com/)
-   2nd Generation Specific (1986-1992) (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/)
-   -   looking 4 nice vented hood (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/looking-4-nice-vented-hood-806326/)

The Griffin 12-14-08 05:41 PM


Originally Posted by TitaniumTT (Post 8798014)
:facepalm2: I'm seriously going to put a request into the mods for you.

So you're saying
A) A vented hood only belongs on a race car
B) A little rain water is catosrophic if it lands on an intercooler
C) According to AE the vent needs to be roughy 29% of the size of the core, yeah, that requires a huge amount, say half the fucking hood to be cut out right there
D) We all know you envy me. It's flattering but please, if I catch you stalking me, I will stab you in the eye.
E) A dedicated race car owner and track junkie went to GREAT lengths to get this hood, I'm sure it's junk and completely useless.

A) Do you read? I'm talking about that particular hood.

B)Huh? Yeah yours will melt rockstar.:D

C) Yep, I was waiting for the trash language, and here it is.

D) Are you going to use your fairy spear to accomplish that, I'm curious? :fruit:

E) again, do you read?

And addressing your first comment.

I'd really like to see a mod's reaction. Because frankly it's getting tiring reading your abusive posts. You seem to think you can get away with talking down to people on this forum that express their opinion or ask a simple technical question, use of excessive fowl language,etc. It's getting tiring to read,whether you have skills or not. Just a little piece of advice , you'll gain more respect on the forum if you tone down that "fat head" syndrone. If you dish it out then take it without crying to a forum mod.,Ok rockstar ? :D

Black91n/a 12-14-08 07:45 PM

1 Attachment(s)

Originally Posted by nitronatefc (Post 8799276)
... Also notice the back of the hood curls up by the cowl slightly, where another vent runs the whole width of the hood...

That is the LAST place you want to try and vent from, since it's a positive pressure area, so the whole engine compartment will need to be pressurized in order to have it vent there. It's more likely that it'll be sucking air IN there. That's why the cabin air intake is right there, positive pressure.

See the attached picture, it shows the pressure on the surface when moving, arrows pointing in means positive pressure, arrows pointing out means negative (relative) pressure. The length of the arrow indicates the magnitude and all arrows are perpendicular (at right angle) to the surface. Where the arrows are pointing out the most on the hood is where the vent should go.

TitaniumTT 12-14-08 09:43 PM


Originally Posted by The Griffin (Post 8799327)
A) Do you read? I'm talking about that particular hood.

B)Huh? Yeah yours will melt rockstar.:D

C) Yep, I was waiting for the trash language, and here it is.

D) Are you going to use your fairy spear to accomplish that, I'm curious? :fruit:

E) again, do you read?

And addressing your first comment.

I'd really like to see a mod's reaction. Because frankly it's getting tiring reading your abusive posts. You seem to think you can get away with talking down to people on this forum that express their opinion or ask a simple technical question, use of excessive fowl language,etc. It's getting tiring to read,whether you have skills or not. Just a little piece of advice , you'll gain more respect on the forum if you tone down that "fat head" syndrone. If you dish it out then take it without crying to a forum mod.,Ok rockstar ? :D

A) Do YOU read? I'm referring to that particular hood as well

B) Yeah, I'm sure it will :rolleyes:

C) Oh noes! Your virgin ears bleeding? Gimme a break, we're all adults here, well most of us, a little swearing is nothing to get panties bunched about when it pertains to retardation

D) My fairy spear? I'm guessing that's what you want me to stab you with. :fruit:
E) Again, does english comp escape you or is it just the facts as it pertains to that hood? I am referring specifically to Carl Byck who was involved with that particular hood. If you're going to attempt to challenge me, get your shit strait first mkay?

https://www.rx7club.com/group-buy-center-69/3rd-gen-mazdaspeed-reverse-cowl-hood-built-2nd-gen-group-buy-199590/

What's the word I'm looking for here :scratch:

Who says I'm crying to a forum mod? I've never once reported any "abusive" posts that have been directed towards me. Honestly though, I think it would be amusing to have your SN branded green. As far as you getting tired reading my foul language, stop stalking me around the fucking forum - oops. Forgive me for being a little brash to ignorant teenagers who start threads with, "I has an idea," or "check out my mad tyte downpipe fab skillzz" and then challenge me on my own welding after I offer SUGGESTIONS. Again, if you don't particularly enjoy my "abusive" posts or my fucking language, stop stalking and antagonizing me.

TitaniumTT 12-14-08 09:49 PM


Originally Posted by RotaryJun (Post 8799313)
Me personally, I like the hood on this one.

http://speedhunters.com/archive/2008...-now-fc3s.aspx

That's a nice find. I like, ALOT. It looks a little on the weak side though, you can see the tweak in it in the picture with the hood up.


Originally Posted by Black91n/a (Post 8799604)
That is the LAST place you want to try and vent from, since it's a positive pressure area, so the whole engine compartment will need to be pressurized in order to have it vent there. It's more likely that it'll be sucking air IN there. That's why the cabin air intake is right there, positive pressure.

See the attached picture, it shows the pressure on the surface when moving, arrows pointing in means positive pressure, arrows pointing out means negative (relative) pressure. The length of the arrow indicates the magnitude and all arrows are perpendicular (at right angle) to the surface. Where the arrows are pointing out the most on the hood is where the vent should go.

Yup, do you remember the ad hype from d-max regarding thier hood and having that exact same vent?? For some cars it would be beneficial to have a vent there but they portrayed it as some voodoo magic that created a vortex that allowed the heat to be pulled out from infront of the windshield. They have since removed it.

anderdick88 12-14-08 09:49 PM

WOW a simple question has gotten so much DUMB ASS remarks

need-a-t2 12-14-08 09:51 PM


Originally Posted by TitaniumTT (Post 8799923)

D) My fairy spear? I'm guessing that's what you want me to stab you with. :fruit:

is that a penis joke....because that would be hilarious!

TitaniumTT 12-14-08 09:52 PM

Dumbass remarks? Yeah, there's actually a thing called knowledge being shared here in some of the posts. But I guess because it goes against what you had originally thought, it's just dumbass remarks

TitaniumTT 12-14-08 10:04 PM

At least someone has a sense of humor


Originally Posted by need-a-t2 (Post 8799955)
is that a penis joke....because that would be hilarious!

Not being a fairy I don't know what a fairy spear is but seeing how he follows me, & even knowing the spelling, I can only assume

Black91n/a 12-14-08 10:54 PM

Yep, in the muscle car world, hoods with an opening back there are called "cowl induction" hoods. Induction indicating that it's an intake, not an exit.

Havoc 12-15-08 03:25 AM

mine for reference.

Was from one on the guys on here. But I had the whole thing remade and grafted to my original NA hood.

Will let you know how my temps drop when I get the engine back in.

http://img261.imageshack.us/img261/8...2934712ki3.jpg
By antman01

http://img261.imageshack.us/img261/9...2839351ej9.jpg
By antman01

SmogSUX 12-15-08 04:35 AM

I really wanted the Feed hood, which looks like the black track FC posted above, but I think the vent is a little bit farther forward. I tried to get in on a GB with Shine, but all the guys opted for the Sexy Style...so I am rocking an N/a hood =/

nitronatefc 12-15-08 09:48 AM

1 Attachment(s)
Thanks for the extra info on my hood Black91 and TTT. I honestly didn't even see this hood had a duct near the cowling until I opened the box, so it wasn't a selling point for me. Now that I have a better understanding of the +/- pressure areas outside an FC, I have a hypothesis. Since the 3 top vents on my hood are located rearward of the more "ideal" vent location, I'm curious if the cowl vent's air draw will facilitate pushing more air out of those top 3 holes. If this is correct, it would seem that this will pull a lot of the heat from the turbo/downpipe area up and out. Am I right, or is the cowl duct completely benefit free? I can't see it being detrimental... can it??

Sorry for the threadjack OP. Here is another hood option to stay on topic. This is the foresight bonnet availbale in Japan. This is my most wanted hood since I realized the panspeed wouldn't fit my car.

https://www.rx7club.com/attachment.p...9&d=1229356040

TitaniumTT 12-15-08 10:42 AM


Originally Posted by Havoc (Post 8800466)
mine for reference.

Was from one on the guys on here. But I had the whole thing remade and grafted to my original NA hood.

Will let you know how my temps drop when I get the engine back in.


By antman01

By antman01

I remember that hood, dltrezzan (sp) made that. I like it but again, I hae to wonder about not only the placement of the vents but the effectiveness at speeds with all the added louvers


Originally Posted by SmogSUX (Post 8800504)
I really wanted the Feed hood, which looks like the black track FC posted above, but I think the vent is a little bit farther forward. I tried to get in on a GB with Shine, but all the guys opted for the Sexy Style...so I am rocking an N/a hood =/

They opted for the sexy style as opposed to a close replica to Supernow's hood. :facepalm2:


Originally Posted by nitronatefc (Post 8800734)
Thanks for the extra info on my hood Black91 and TTT. I honestly didn't even see this hood had a duct near the cowling until I opened the box, so it wasn't a selling point for me. Now that I have a better understanding of the +/- pressure areas outside an FC, I have a hypothesis. Since the 3 top vents on my hood are located rearward of the more "ideal" vent location, I'm curious if the cowl vent's air draw will facilitate pushing more air out of those top 3 holes. If this is correct, it would seem that this will pull a lot of the heat from the turbo/downpipe area up and out. Am I right, or is the cowl duct completely benefit free? I can't see it being detrimental... can it??

Sorry for the threadjack OP. Here is another hood option to stay on topic. This is the foresight bonnet availbale in Japan. This is my most wanted hood since I realized the panspeed wouldn't fit my car.

https://www.rx7club.com/attachment.p...9&d=1229356040

http://www.rhdjapan.com/jdm-low/Fore...C3S-RX-7-52070

It's available if you really want it. My main concerns with that hood are it looks like the main vent is placed a little too far back for my intercooler and strut bar. I'm afraid I'll end up with more hood clearance issues. Right now I have to "adjust" the hood supports as it contact's by about .063" in the center of the hood. Looks like I have alot of fiberglassing in my future.

Tofuman FC3S 12-15-08 10:57 AM

Funny how we are discussing the magical "Cowl Vent" overy few months or so...


It's available if you really want it. My main concerns with that hood are it looks like the main vent is placed a little too far back for my intercooler and strut bar. I'm afraid I'll end up with more hood clearance issues. Right now I have to "adjust" the hood supports as it contact's by about .063" in the center of the hood. Looks like I have alot of fiberglassing in my future.
What about having one made specificaly for your needs by a racing bodypanle maker. A good FC hood shouldn't weigh more then 3 KGs.

Riz.

g14novak 12-15-08 01:06 PM


Originally Posted by The Griffin (Post 8797830)
What makes you think, other people want this somewhat useless hood? The vent is very small, sits too far back on the hood and to get any kind of benefit out of it you need to cut past the vertical vent,like Carl Byck's car(SP?). Maybe on a track car like yours rockstar, not good if it rains on a street car. :D

Vent is small and to far back on the hood? Have no worries, using my mad jdm skills, I was able to create the ultimate hood. On top of all that, it acts like a AI system when it rains, sucking up everything including small children in its path!

BEHOLD!
https://img.photobucket.com/albums/v...2k_medium2.jpg

The Griffin 12-15-08 01:52 PM


Originally Posted by g14novak (Post 8801174)
Vent is small and to far back on the hood? Have no worries, using my mad jdm skills, I was able to create the ultimate hood. On top of all that, it acts like a AI system when it rains, sucking up everything including small children in its path!

BEHOLD!
https://img.photobucket.com/albums/v...2k_medium2.jpg

That's a perfect hood for Mr. TitaniamTT, matches his "Fathead" syndrome.:D Of course we'll have to breakout the motec with EMap to get some data just to confirm.:D

Juiceh 12-15-08 02:05 PM


Originally Posted by anderdick88
really wanted the hood that RX-Heaven had on his widebody but he said that they dont make it any more

That is the Pan Speed Type II hood. I have it on my car. My importer told me I got the last 2 that Pan Speed had in the shop and the guys there told him they would not be making any more. However, it is listed on RHDjapans website.
http://www.rhdjapan.com/jdm-low/Pan-...C3S-RX-7-50295

Pics of hood in my sig and in the build thread link.


Originally Posted by TitaniumTT
:rlaugh: Some of us, well me, are running VMIC's and while a vented hood is optional, I think it will help. Unlike most people here though I'll actually be swapping hoods, vented vs non, and pulling a few logs to see if it actually does help coolant temps or AIT's. Until then though, it's all fucking guess work.

I too will be running a Vmount and plan to do many tests with my hood as well.


Originally Posted by TitaniumTT
Sinfully ugly, not to mention those fucking retards actually think that the vent in the back right by the windshield will create some sort of magic vortex to let the heat OUT. :facepalm2:

Agreed, it is by far the worst looking hood out there. It doesn't flow with the FC lines at all. Did they finally take that hilarious animation off their site?


Originally Posted by TitaniumTT
Look at the length on the hood on the inside next to the lights. It looks to me like RE's hood NEEDS thier front bumper with the extended lights to work. The orange car looks like it's a stock replacement hood. Dunno though, most of you kids consider me old, maybe my eyes are going.

Same hoods on both cars. The hood just looks longer on the one car because of the way the headlight buckets dip into the front bumper. It's a direct bolt on.



Originally Posted by need-a-t2
is that a penis joke....because that would be hilarious!

I LOL'd!


Originally Posted by SmogSUX
I really wanted the Feed hood, which looks like the black track FC posted above, but I think the vent is a little bit farther forward. I tried to get in on a GB with Shine, but all the guys opted for the Sexy Style...so I am rocking an N/a hood =/

That was the Pan Speed hood we were trying to have shine make. For some reason we couldn't get enough interest. Shine even had one of those hoods in their posession. But they didn't pull the trigger because the stupids wanted that Mini Dmax uglyness.


Originally Posted by nitronatefc
Sorry for the threadjack OP. Here is another hood option to stay on topic. This is the foresight bonnet availbale in Japan. This is my most wanted hood since I realized the panspeed wouldn't fit my car.

Why wouldn't the panspeed hood fit your car? If you can fit a stock hood you can fit the panspeed hood... Or are you talking about the overall look of the car?


Originally Posted by TitaniumTT
They opted for the sexy style as opposed to a close replica to Supernow's hood. :facepalm2:

Yep, it was quite depressing.


Originally Posted by TitaniumTT
That's a nice find. I like, ALOT. It looks a little on the weak side though, you can see the tweak in it in the picture with the hood up.

Any FG hood with a large hole in it will tweak a little when held up by the stock prop bar.

nitronatefc 12-15-08 02:42 PM

[QUOTE=Juiceh]
Why wouldn't the panspeed hood fit your car? If you can fit a stock hood you can fit the panspeed hood... Or are you talking about the overall look of the car?/QUOTE]

I assumed it wouldn't fit (probably like a dumbass). Looking at pics of that hood on your car and others led me to believe that the vent dipped down lower than stock hood clearance toward the windshield side of the vent. Maybe this is an optical illusion. I was concerned about clearance with my intercooler core sticking up so high between the motor and radiator (see pic in my 1st post). If your hood is not lower at any point than a stocker, then I was wrong and could have fit it :uh: Thats ok though, because otherwise my car will end up looking too much like a toned down version of yours by the time its done

TitaniumTT 12-15-08 03:02 PM


Originally Posted by The Griffin (Post 8801297)
That's a perfect hood for Mr. TitaniamTT, matches his "Fathead" syndrome.:D Of course we'll have to breakout the motec with EMap to get some data just to confirm.:D

Oh how I love hypocrisy from little children looking for attention on the internetzzz


Originally Posted by Juiceh (Post 8801324)
I too will be running a Vmount and plan to do many tests with my hood as well.

MMMM - test results.


Originally Posted by Juiceh (Post 8801324)
Agreed, it is by far the worst looking hood out there. It doesn't flow with the FC lines at all. Did they finally take that hilarious animation off their site?

Yes, they finally took it down. Why, I don't know. It was good for a laugh


Originally Posted by Juiceh (Post 8801324)
Same hoods on both cars. The hood just looks longer on the one car because of the way the headlight buckets dip into the front bumper. It's a direct bolt on.

Interesting, too bad it's near impossible to get these things here


Originally Posted by Juiceh (Post 8801324)
I LOL'd!

More people with a sense of humor! There's hope yet


Originally Posted by Juiceh (Post 8801324)
That was the Pan Speed hood we were trying to have shine make. For some reason we couldn't get enough interest. Shine even had one of those hoods in their posession. But they didn't pull the trigger because the stupids wanted that Mini Dmax uglyness.

Yep, it was quite depressing.

That's sad. Do they still have the hood and how many people would they need a commitment from in order to pull a mold?


Originally Posted by Juiceh (Post 8801324)
Any FG hood with a large hole in it will tweak a little when held up by the stock prop bar.

Yeah but that seems to be a little excessive. It's also hard to tell if there are any supports on the inside of the hood or not.

Juiceh 12-15-08 03:05 PM


Originally Posted by nitronatefc (Post 8801421)
I assumed it wouldn't fit (probably like a dumbass). Looking at pics of that hood on your car and others led me to believe that the vent dipped down lower than stock hood clearance toward the windshield side of the vent. Maybe this is an optical illusion. I was concerned about clearance with my intercooler core sticking up so high between the motor and radiator (see pic in my 1st post). If your hood is not lower at any point than a stocker, then I was wrong and could have fit it Thats ok though, because otherwise my car will end up looking too much like a toned down version of yours by the time its done

aahh I see what you mean, i didn't realize the post I quoted was the same person who posted that setup. It does dip down some. How much clearance do you have with your intercooler and the stock hood right now? I'll take some measurements of the hood to help give you a better idea if it will fit or not.


Originally Posted by TitaniumTT
That's sad. Do they still have the hood and how many people would they need a commitment from in order to pull a mold?

Nope. I tried to pester them to sell it to me, but after an extremely delayed response from them I found out they got rid of it. So I bit the bullet and had one imported myself. I believe they wanted 10-15 committed to do it.

Havoc 12-15-08 04:34 PM


Originally Posted by TitaniumTT (Post 8800858)
I remember that hood, dltrezzan (sp) made that. I like it but again, I hae to wonder about not only the placement of the vents but the effectiveness at speeds with all the added louvers

Will only know when I get it up and going :)

Also one of my biggest issues in the past was heat from a stationary situation. Sitting in traffic etc I use use to nearly cook my engine. Hopefully it will release that heat and actually get some airflow happening.

But its all speculation till I get it back on the road, nothing beats actual data

nitronatefc 12-15-08 05:42 PM


Originally Posted by Juiceh (Post 8801486)
aahh I see what you mean, i didn't realize the post I quoted was the same person who posted that setup. It does dip down some. How much clearance do you have with your intercooler and the stock hood right now? I'll take some measurements of the hood to help give you a better idea if it will fit or not.

Well.... there was a problem with that. I scrapped my n/a hood and sold my aluminum TII hood last Fall before having any other hood purchased, then I installed the intercooler :dunce: Once it's warmer than -10 I will be heading out to the garage to fire up Mr. Heater and test fit this new hood.

TitaniumTT 12-15-08 06:27 PM


Originally Posted by Havoc (Post 8801737)
But its all speculation till I get it back on the road, nothing beats actual data

How true that is. What are you running for a rad/fan?

Trots*88TII-AE* 12-15-08 06:45 PM

That aerodynamic profile picture of the FC always had me thinking. It is of course of an N/A hood, stock bumper. If you took an aftermarket bumper, allowing more air to come in the front, and assuming you keep some form of undertray, at what point would the incoming air overcome the pressure created by that "positive pressure area" near the rear, and force air out a vent if placed there?

That diagram really has no index, so there's no way to know how much pressure is created, for all we know it could be a couple KPA, less then 1 psi.

TitaniumTT 12-15-08 06:49 PM

You'd have to duct it all the way back and seal the tranny tunnel too. I was told that it I started having underhood temp problems to remove the seal on top of the firewall. Air will be forced in there and exit the tranny tunnel along with more engine bay heat.


All times are GMT -5. The time now is 11:24 PM.


© 2024 MH Sub I, LLC dba Internet Brands