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Damn True
10-31-2005, 07:00 PM
In looking at a couple of panoz cars this weekend I got to thinking about how absolutely rubbish the aerodynamics are on some of our cars.

So, here are some of the things I have been rolling around in my head. Let me know if you have seen good examples of this sort of thing, or if I am pi$$ing up the proverbial rope.

Fender air extractors:
Something to get the hot, high pressure air out of the engine compartment rather than having it flow beneath the car (http://000info.com/?go=car). Because at this point it is turbulent and slow it will raise the pressure beneath the car (http://go-acct.com/?go=car) and increase lift.
So I'm thinking something like perhaps getting a couple of M3 fenders and cutting the fender vent out and fitting into the f-body fender. Perhaps using the extractors off of a '69 Trans Am (though they look a bit wierd). Maybe some kind of subtle louver treatment on the aftmost part of the front fender.

Grille:
Wondering if the radiator needs that great big opening? Are the two openings on the lower valance ('68 Camaro) large enough to feed the radiator? Many modern cars certainly get by with smaller openings. I'm thinking if there was a sheet of aluminum behind the grille (painted flat black) to block off the opening?
Certainly sealing the opening between the core support and the front header panel would be helpful, as would sealing the area from beneath the front valance up to the core support creating a duct of sorts.

Alternate spoilers & wings:
The OE spoiler works, but can it be improved upon?
Vanzuuk's is certainly an option, but as a more aggresive treatment I have also been considering the VFN fiberglass Pro-mod air dam.

https://static1.pt-content.com/images/pt/2005/08/vfncamaro3JPG-1.jpg

I'm kinda thinking it would be bad-ass to have that VFN front valance set up so it could be removed and installed using dzus fastners so you wouldn't have that thing on the car (http://get-data.net/?go=car) for the daily driver type stuff.

Or perhaps Tyler's front valance/air dam?

https://static1.pt-content.com/images/noimg.gif

See what I mean about the grille opening? Do we need all of that?


And in the rear...stock works of course. But can it be improved upon?

Stevo's custom spoiler is one option.

https://www.pro-touring.com/featured_cars/Camaro/1968_Camaro/steve_chryssos_68_camaro/streetfytr1_small.jpg

Or, again something more agressive. What if one combined the stock spoiler with a wing of this type?

https://static1.pt-content.com/images/pt/2005/10/tcp75-1.jpg

Probably a little to "rice" to drive on the street, but if you had a spare decklid with that attached that you could bolt on for a track-day.


https://static1.pt-content.com/images/pt/2005/11/tcp_spoiler-1.jpg

ProStreet R/T
10-31-2005, 08:30 PM
You need to look at each individual car before making any aero changes. 1st thing I would do to 95% of the cars I have seen here is drop them to the ground. You think your car is low, drop it another 1-1.5" and now we're talking. Look at Red and some of the other real race cars, they are down in the weeds.

Air going under the car is only bad if you can't control it. Throw a belly pan on the car and it will almost instantly handle MUCH better at high speeds. Yes a rear valance that directs air flow out the back would be a huge benefit here. Stacking rear spoilers is only, ONLY, ONLY!!!! beneficial if you need the rear downforce. It's not some magical piece that makes the car faster.

No you don't need 1/2 the grill opening the car has stock if your running high speed tracks. Getting a good fan shroud and directing all the air through the radiator is key.

I honestly wouldn't get too crazy with the front end, that custom aluminum air-dam would be right up my alley. If the car is low enough it will be more than adequate.

MrQuick
10-31-2005, 09:57 PM
See what I mean about the grille opening? Do we need all of that?
Back when these cars were designed they did. Remember air was moved via engine driven fans that slowed down when the car was in traffic which would require more surface area and open air paths to cool.
Now we have cooling systems that are more efficient,fans that push more air and are electiclly modulated for different cooling needs.
This open area could now hinder aerodynamics. But here is the thing, is the car worthy of the effort? If your building an open road racer where the difference between 160 and 165mph is a 12" of frontal surface area,than a design change is warrented. I might look twice if this was a local raod coarse track car and speeds were lower.
Also the same efect can be made by moving weight around or increasing traction ratios.

Damn True
10-31-2005, 10:19 PM
https://static1.pt-content.com/images/noimg.gif


https://static1.pt-content.com/images/noimg.gif

vanzuuk1
11-01-2005, 04:22 AM
True , my spoiler isnt super efficient, just was the easiest for me to make and I wanted the "look". The spoilers in you photos are way more effective but if break them its off to the paint shop. I have dragged and damage mine a few times already.

My rear spoiler is coming along but I want to get a cheap decklid too drill and test it on. The rear has all kinds of challenges as steevo and I will tell you. A stock camaro spoiler with lexan or aluminum extensions might be cool.

I should have a photo of the rear spoiler this weekend.

vanzuuk1
11-01-2005, 04:26 AM
Also, mr quick is right, the aero stuff wont matter enough on a lot of tight road courses. I see big wings at an autox and wonder if its worth it.

I did my front spoiler for the look, but you can feel the difference on the highway.You can feel the extra drag too!

Rick Dorion
11-01-2005, 05:54 AM
Dirk, are you going to have your custom rear spoiler fasten to the deck lid or stock rear spoiler? Sonds very cool.

Damn True
11-01-2005, 08:25 AM
To be clear, I probably wont do much if any of this stuff. Certainly the radical stuff is really more for ruminaton than anything else. Just opening the table for brainstorming.

Damn True
11-01-2005, 10:19 AM
True , my spoiler isnt super efficient, just was the easiest for me to make and I wanted the "look". The spoilers in you photos are way more effective but if break them its off to the paint shop. I have dragged and damage mine a few times already.

My rear spoiler is coming along but I want to get a cheap decklid too drill and test it on. The rear has all kinds of challenges as steevo and I will tell you. A stock camaro spoiler with lexan or aluminum extensions might be cool.

I should have a photo of the rear spoiler this weekend.


Good point. It certainly would make it a lot more expensive to get off track with something like that VFN unit or Tylers. Especially if you got into the kitty-litter at Sears Point, and now that I think about it, some of the run-off areas at Thunderhill, though big, are essentially plowed earth.

Damn True
11-01-2005, 11:38 AM
Here is an interesting article on Cam-aerodynamics http://www.yearone.com/enthusiast/restoarchives/winter99/18-21camaro.pdf

Travis B
11-01-2005, 12:21 PM
I agree w/ pro street r/t.....most cars could beneifit from a height adjustment.....

and IMO that VFN front airdam is horrible looking

vanzuuk1
11-01-2005, 02:47 PM
My rear spoiler attaches to the deck lid, I want to get a spare decklid to play with until I have it all worked out.

By the way there is a ton of force on these things as the car goes through the air, so I overdid it a little with fasteners and supports. You can stand on my front spoiler and rock the car. If an aluminum spoiler ever came off at speed it could kill someone.

Damn True
11-02-2005, 10:26 AM
The graphs in the article I linked above are particularly interesting. The stock stuff works, but it was dumbed down from the original design for asthetics. I can only assume that larger versions would be more effective.



If you look at the graphs, front end lift, even with the OE air dam is pretty bad. Certainly reducing the amount of air beneath the car (lower car and bigger air dam) would improve that as those tests were done at stock ride height.

I wonder how much of that could be alleviated by reducing the amount of air that gets into the engine compartment and providing a better exit path for that which does get in?

airrj1
11-02-2005, 06:13 PM
Fender air extractors:
Something to get the hot, high pressure air out of the engine compartment rather than having it flow beneath the car.

Just a note about getting hot air out of the engine compartment. I don't have any inner fenders on my Chevelle right now and I have no cooling issues with a tiny radiator, no fan shroud, a stock four blade fan. Generally just a crappy cooling system. I am fairly certain that the open nature of the engine compartment is helping keeping things cool.

I also saw this before on my Street Stock circle track car. We were required to run inner fender wells for years. And finnally the track allowed us to run without them, and instantly any cooling problems that we had went away. It definately helps exchange the air and cool things down.

Damn True
11-03-2005, 02:17 PM
I really like what this guy did with the front of this car!

https://static1.pt-content.com/images/noimg.gif

vanzuuk1
11-03-2005, 03:06 PM
I do like that car but the spoiler wouldnt last ten seconds, probably as far as the end of my driveway. Crunch.

Its probably air bagged.

Damn True
11-03-2005, 03:23 PM
LOL, yeah it looks pretty dang low. It is on grass though. That can be decieving.



How's your rear spoiler coming along?

vanzuuk1
11-03-2005, 04:47 PM
True

I have been meaning to get two yellow or red tow hooks and mount them to my car,think that looks cool,

ProStreet R/T
11-03-2005, 04:54 PM
Is it me or does that whole setup look out of proportion? IMO it needs to be lowered another 2" and build the splitter and such to reflect that height.

And are those 360cs wheels on it?

69Nova
11-03-2005, 07:36 PM
That cars looks so wrong. I hope that is a fiberglass front so he didnt ruin stock fenders. I know our cars are not aero friendly but didnt Big Red do over 200mph with basicly stock bodywork.

Andrew Petty

ProStreet R/T
11-03-2005, 07:46 PM
That cars looks so wrong. I hope that is a fiberglass front so he didnt ruin stock fenders. I know our cars are not aero friendly but didnt Big Red do over 200mph with basicly stock bodywork.

Andrew Petty

Yeah he did... it's amazing what eleventy billion HP will do :) Relatively, 200mph isn't THAT hard.. 220 gets mighty tough tho. Get that sucker down in the weeds, nice belly pan and a mild spoiler... insert 700rwhp of your choice and 200mph is no prob.

Damn True
11-04-2005, 12:18 AM
That cars looks so wrong. I hope that is a fiberglass front so he didnt ruin stock fenders. I know our cars are not aero friendly but didnt Big Red do over 200mph with basicly stock bodywork.

Andrew Petty



I hear what you are saying, but you have to consider that it's just a very different style. Northern Europe is heavy into the touring car racing and clearly that influenced this guys build.

Yes, Big Red went 200 with stock bodywork.....channeled over a tube chassis so it is REALLY low. But with well over 800hp and the right gears you can push almost anything over a deuce. As ProStreet said, 220 would be muuuuuch harder. The influence of Parasitic Drag and Frontal Area increases exponentially, not linearly as speed increases. It takes over four times as much hp to go 200mph as it does 100mph.

The challenge would be to build a streetable car that would go as fast. That would take some serious effort in the areo department.

vanzuuk1
11-04-2005, 03:18 AM
Like buzz said the grey car is too tall in the valance and spoiler area.Looks like jay lenos chin.

69Nova
11-04-2005, 09:47 AM
So that car is from Europe, are there any more pics of it. It might provide some new and diffrent ideas.

Andrew Petty

indyjps
11-05-2005, 09:05 PM
there was a site it came from posted a while back, i believe sweden or norway. from the build shots of the rear, it looks like its all metal, i cant remember if it showed the fromt being fabbed. i personally dont care for the look but the metal fab is very good, i agree that front end would last one trip down the road where i live.

boodlefoof
11-06-2005, 06:25 AM
The challenge would be to build a streetable car that would go as fast. That would take some serious effort in the areo department.

That is what I'm trying to do with my Datsun 240-Z project. A car that could perform daily driving duties, but can then go and break 200mph! )I know, I know... :screwy: ) I'm considering aerodynamics as I custom form the body... but of course, I have no wind tunnel or any hard numbers to back up what I am doing.

harshman
11-06-2005, 07:39 AM
I was picking the mind of a second gen camaro owner who drives the Silver State Classic about this very thing. He said to fabricate a piece of sheeting under the front end from the bumper/valance, past the cross-member, to the oil pan so as to lessen the amount of air flowing in the engine compartment. He also said that he has found that the lower your car is the more HP is freed up. This was his experience in his car.

paul67
11-06-2005, 12:08 PM
What about Nascars don't they go into the 200 bracket and they don't have wild front spoilers or wings.
paul67

MrQuick
11-06-2005, 12:53 PM
What about Nascars don't they go into the 200 bracket and they don't have wild front spoilers or wings.
Thats by design,it would not take too much to have one go 200+. Add a splitter, remove the roof dam and cut the angle down in the rear will do it. Their spoilers help slow and increase bite in high banked turns at the same time.
Now you comparing two different cars. Nascar slowed them down for safety reasons, theres no spectators (some but not surounding the entire track) to kill if an open road car get out of control.

CoryM
11-06-2005, 01:16 PM
No camaros but some interesting info here:
http://www.mulsannescorner.com/
Lots of pictures which is my style of learning.

From what I gather there are a few relatively easy things to do before going hog wild. Front belly pan from spoiler to firewall, block off grille and use a smaller radiator opening (2nd gens lower grilles work great for that), duct the exhaust side of radiator to outside of car in a low pressure area, wheel well vents to side of car or top of fenders. Slightly raked stance and a SIMPLE chin spoiler thats cheap enough you can afford to destroy it on a bump. At our speeds you dont need anything fancy, no strakes or lips, just something to push the air to the outside of the car.
Just remember if you put a belly pan on you MUST correctly exhaust the radiator and have the grill blocked off or vents. Other wise you will blow your hood off :drive2:
I am no aerodynamic expert (is anyone?) but those things seem to work well on sports cars with relatively little work/cost.
Just dont forget about bumps.... you need enough wheel travel to handle bumps so dont slam the car and think its gonna be faster in the corners. The great balancing act of building cars.

vanzuuk1
11-06-2005, 02:43 PM
O.K., this is a mock up, I may start from scratch and do another one. It is not designed to be 100 percent efficient, I had to make some compromises to keep from having the struts go to the tail light area. I am still kind of designing it in my head.

Damn True
11-06-2005, 08:41 PM
What about Nascars don't they go into the 200 bracket and they don't have wild front spoilers or wings.
paul67


They have an air dam that is about 3" off the ground static, and much lower at speed. 750-800hp (on tracks other than daytona and talladega) helps a lot. They hit a deuce at the end of the back straight at atlanta and the front straight at pocono.

Damn True
11-06-2005, 08:49 PM
Cory, good stuff.

Zuuk,
Any idea what the surface area of that thing is in comparison to the stock spoiler?

Damn True
11-06-2005, 09:49 PM
Holy smokes!

This thing has done a 1:38 at Road Atlanta.
https://static1.pt-content.com/images/pt/2005/11/DSC00358JPG-1.jpg

vanzuuk1
11-07-2005, 03:31 AM
is that a mustang?

Damn True
11-07-2005, 03:36 AM
It was. Now it's some sort of freakish refugee from a secret CIA lab.



Wierd lookin thing eh?

Rick Dorion
11-07-2005, 07:36 AM
O.K., this is a mock up, I may start from scratch and do another one. It is not designed to be 100 percent efficient, I had to make some compromises to keep from having the struts go to the tail light area. I am still kind of designing it in my head.

Dirk - what thickness of aluminum are you using? Also how do you cut/fabricate it? I bought some .040 sheet from Spruce Aircraft.

69Nova
11-07-2005, 01:38 PM
Dirk why doesnt your spoiler extend all the way across your car?

Andrew Petty

Damn True
11-07-2005, 03:04 PM
Some ECTA cars

https://static1.pt-content.com/images/noimg.gif

https://static1.pt-content.com/images/noimg.gif

Ralph LoGrasso
11-07-2005, 03:14 PM
Some ECTA cars

https://static1.pt-content.com/images/noimg.gif

https://static1.pt-content.com/images/noimg.gif

These are cars that run down in Maxton, NC, right? I think ECTA runs at Maxton?

vanzuuk1
11-07-2005, 03:18 PM
the spoiler is made of app. 1/16 aluminum, You can cut aluminum with a wood blade. Its cuts ceanly , you can use a panel saw , tables saw or doall saw (big jigsaw).

I am not happy with what I have got so far, it doesnt seem like you guys like it much either.

There are a few issues doing this type of spoiler on a first gen camaro.

The only place behind the spoiler you can put the adjusters is in the tailight panel. I dont want to drill mine and its a pain in the ass to undo four struts every time you want to open your trunk. The struts will be flopping around also, waiting to scratch something.

The other issue is the shape of the trunk lid , it curves front to back and left to right. I can cut and bend aluminum but i am no jesse james , the only thing I came uo with was the cut out on the bottom part which helps the bend side to side.

As far as the width , it made the s/t/s bend easier and I thought it would look ok.

I am going to put this one aside and make one that extends to the edge of the trunk lid with the adjusters going forward towards the rear window, about five inches.

Steevo has the only spoiler like this and he will tell you its not easy. He also hates the struts on the tailight area.

I will consider any input.

Andrew, your car is easy, i know you have a horizontal panel on the trunk to mount the struts and I think your trunk is flat left to right.

Damn True
11-07-2005, 03:19 PM
..and then there's Preston's Mustang......drool!


https://static1.pt-content.com/images/pt/2005/11/SideViewPainted-1.jpg
https://static1.pt-content.com/images/pt/2005/11/SideViewPaintedFromRear-1.jpg
https://static1.pt-content.com/images/pt/2005/11/RearViewPaintedLow-1.jpg

Ralph LoGrasso
11-07-2005, 03:19 PM
Dirk,

Check your email.

Damn True
11-07-2005, 03:20 PM
These are cars that run down in Maxton, NC, right? I think ECTA runs at Maxton?


Yup. There was a yellow '69 in PHR a month or two ago that runs @ Maxton as well.

Damn True
11-07-2005, 03:29 PM
I am not happy with what I have got so far, it doesnt seem like you guys like it much either.


Looks bitchin. I was just wondering if you were going to have enough surface area to be at least as effective as the OE unit and if you were going to have any kind of adjustment range. The look though is bad-ass.


Just an idea here:
I understand your aversion to drilling your tail light panel, but....

What if the piano hinge mounted in the space above the tail light housings. On the vertical between the tail light, and the rim of the trunk? Your decklid would be smooth all the way back. Then you could mount the lower ends of the struts below the tail lights. Cut a little relief for the trunk lock.

Ralph LoGrasso
11-07-2005, 03:34 PM
Yup. There was a yellow '69 in PHR a month or two ago that runs @ Maxton as well.


That was a very cool car (damn fast, too). I'd like to run my car at Maxton when finished, but any cars running over 160 require a chute. I'm almost certain, I'll have the power/gearing/some aero to hit 200 (definitely 180 plus), but not sure I want to drive around with a chute mount. I'd pass all the other tech requirements, but that one.

vanzuuk1
11-07-2005, 03:53 PM
True , I like that idea but I cant bring my self to drill the car too much. A spare decklid with a flat panel built up left to right would solve a lot of problems. Stay tuned, i will have a revision in a week or two.

Damn True
11-07-2005, 10:22 PM
True , I like that idea but I cant bring my self to drill the car too much. A spare decklid with a flat panel built up left to right would solve a lot of problems. Stay tuned, i will have a revision in a week or two.



...and if that spare decklid were fiberglass and sprayed in black primer it would look tit$ with the bare aluminum.

vanzuuk1
11-08-2005, 03:55 AM
You read my mind.But I dont have the $$ for a decklid right now.

69Nova
11-08-2005, 08:29 AM
Yeah on my car it would be alot easier to mount a spoiler like that, the trunk lid has just a little curve with enough towards the back to place the struts on. After I finish my projects I will try and make a spoiler that style.

On another note my front airdam/spoiler is coming along nicely and is going to look wicked. Hopefully this weekend I will post some pictures of it done.

Andrew Petty

Ralph LoGrasso
11-08-2005, 02:12 PM
You read my mind.But I dont have the $$ for a decklid right now.


Might want to stay away from the 'glass decklid. I was looking into doing this and was advised not to for a few reasons. First is the fit, and second is strength. There will be alot of force on the spoiler and trunk lid (more so where it is fasted to the trunk lid) at high speeds. I may be wrong, though. I wonder what the weight savings of a glass lid is? 10-15lbs?

vanzuuk1
11-08-2005, 04:18 PM
Ralph you dont have a extra decklid , do you?

This saturday there is a car model show in freeport, let me know if you are around.

Damn True
11-18-2005, 06:25 PM
Here's some interesting stuff:

http://www.circletrack.com/techarticles/0304_aero/
http://racingarticles.com/article_racing-25.html
http://www.fordmuscle.com/archives/2004/04/MustangGTR/index.php
http://www2.mech.kth.se/courses/5C1211/clip_image004.jpg

MuscleRodz
11-18-2005, 07:47 PM
Damn True, someone has already considered everything you are thinking about and will be packaging it in a full tube chassis, carbon fiber bodied '69 Camaro. If you got the $$$$, just order one of these.
link (http://www.evolutionmusclecars.com/pictease.htm)

Mike

Damn True
11-19-2005, 02:03 PM
I don't have the $$$ so I'm having to figure out a way to make a nasty street legal Trans Am car on my own.

But that R/SR is nice eh?

boodlefoof
11-20-2005, 09:03 AM
I'm with Damn True. Building it yourself is the way to go to save a few bucks... and in my opinion it is much more fun too!

Damn True
11-16-2006, 12:21 AM
Anyone with a running 1st Gen care to take a crack at this?

http://autospeed.drive.com.au/cms/A_1044/article.html

...at least on the hood?

Project69
11-16-2006, 05:35 AM
Im thinking about doing a custom front spoiler, where would i get the struts to be able to adjust the spoiler and what are the parts called?

Damn True
11-16-2006, 07:06 AM
Five star bodies for something plain, or APR performance if you want blingy

MSchu
11-16-2006, 12:29 PM
Or HRP World: http://www.hrpworld.com/SpoilerSupport.cfm?form_prod_id=459,58,363_115&action=product

Rabidhamster
11-26-2006, 09:58 PM
any ideas for this?

https://static1.pt-content.com/images/pt/2006/11/Hq6-1.jpg

heh... I'm trying to keep the nice old school muscle look, so it's been kinda "fun" trying to find little places to block, vent, redirect air without a bunch of holes in the panels and a big cowl

it's going on an air suspension, so that will be it's "play" height.. normal driving height will be a little taller and I'm going with an airbag type that stiffens the spring rate as it goes down.

I'm thinking of panning the bottom, using filler panels and plexi to close up the nose opening some, and tucking the bumper closer to the body with a little custom work to give it more of an airdamn effect

I also am making use of some of the upper slots for ram air, and blocking off the rest, then cutting a channel in the center part of my firewall and using about 60% of the heater inlet as hood evacuation, yes it is getting a bed cover, with probably a dove tail moulded in or a spoiler on it, finally I'm gonna notch the bottom of the rear bumper for a lil better air path under the truck

at the moment I can feel it fight @ 70mph ..hopefully I can stablize it out some!

Rabidhamster
11-26-2006, 10:00 PM
oh sorry... here's it's current ride height

https://static1.pt-content.com/images/pt/2006/11/Hq5-1.jpg

Bandit
11-27-2006, 01:24 AM
Yes, Big Red went 200 with stock bodywork.....channeled over a tube chassis so it is REALLY low. But with well over 800hp and the right gears you can push almost anything over a deuce. As ProStreet said, 220 would be muuuuuch harder. The influence of Parasitic Drag and Frontal Area increases exponentially, not linearly as speed increases. It takes over four times as much hp to go 200mph as it does 100mph.


Isn't Big Red alot like a NASCAR wrapped in a 1st-gen appearing shell? I don't know but it seems like it.

Project69
11-29-2006, 08:56 PM
Isn't Big Red alot like a NASCAR wrapped in a 1st-gen appearing shell? I don't know but it seems like it.


Yup thats basically what Big Red is, its got a NASCAR inspired Tubular frame throughout, no fenderwells in the front, need room to run 335s haha which is sick.:headbang:

Damn True
08-13-2008, 07:40 AM
Active aerodynamic devices:

http://aeromotions.com/gallery/


Bad-arse!

Cometose
08-14-2008, 04:29 AM
Bad-arse!

And then some!

gordonquixote
08-14-2008, 04:38 AM
https://static1.pt-content.com/images/pt/2005/08/vfncamaro3JPG-1.jpg


The biggest problem I see here is the huge rock in the engine compartment. It seems like a rock that big would be plenty enough to hold the front end down. I wonder if he used big block springs.....?

MarkM66
08-15-2008, 06:16 AM
The biggest problem I see here is the huge rock in the engine compartment. It seems like a rock that big would be plenty enough to hold the front end down. I wonder if he used big block springs.....?

It's probably a grey plastic tarp.

Have another, :Alchy:

lol

bbnova
08-18-2008, 11:15 AM
Gives new meaning to the term: "Mountain motor".

LOL!

Mr.VENGEANCE
08-18-2008, 01:27 PM
or.. Like a rock......

DarkoNova
08-18-2008, 02:22 PM
Interesting, I was actually planning on doing a lot of the stuff mentioned in the thread. Good to know I'm not alone. :)

Someone mentioned that if you seal the underside of the car and make it flat, you need to create a way to vent the excess air going into the engine compartment. My Nova has factory fender louvers (non-functional of course) that I planned to make functional by cutting out the back of each louver (maybe have a set made in carbon fiber! mmm). I've also got a 4" cowl induction hood, and the raised portion is open at the back (it has a little screen for "protection" I guess). Would the fender louvers and the cowl induction be enough "venting" or would I need to do something else?

Matt

Damn True
08-18-2008, 02:48 PM
Air will most likely be coming in through your cowl induction hood, not going out. The base of the windshield is a high pressure area.

SaturnVUEguy
08-18-2008, 04:28 PM
Air will most likely be coming in through your cowl induction hood, not going out. The base of the windshield is a high pressure area.But wouldn't the back of a cowl be a low pressure area? I could be wrong.

Maybe to vent some more air, maybe you could fab some vents like the following link has, on either side of the cowl: http://forums.nicoclub.com/zerothread/168601

DarkoNova
08-18-2008, 06:05 PM
But wouldn't the back of a cowl be a low pressure area? I could be wrong.

Maybe to vent some more air, maybe you could fab some vents like the following link has, on either side of the cowl: http://forums.nicoclub.com/zerothread/168601

I was thinking of something like that, actually. But more along the lines of the "GTR" style hood for the E46 M3. I don't know the name of the hood, but that's how my friend describes it. There's a poster on the wall at school of an E46 M3 lifting an inside wheel on a turn, and it's got 2 sets of louvers on the passenger's and driver's side of the hood. It may be a bit more complicated to do something like that on my hood since it's basically a hollow fiberglass shell. I'd have to figure out a way to cut through both "layers" of the hood, seal the hole so air doesn't just fill the hood, and then secure the louvers.

Actually that doesn't sound too hard, I'm just a little scared to cut into my $650 hood, considering the fact that Harwood is supposedly on mad backorder on their hoods. :guilty:

I also noticed that the fender louvers are ridiculously short (they only stick out of the fender around 1/4"), so if I really wanted those to have any kind of benefit, I'd most likely need to customize them myself.

EDIT: This is the hood I'm talking about. If I did decide to modify the hood, I'd probably do louvers similar to these:

https://static1.pt-content.com/images/pt/2008/08/2340497895_46bd28213c_b-1.jpg

Matt

Hellrace
08-18-2008, 09:52 PM
So that car is from Europe, are there any more pics of it. It might provide some new and diffrent ideas.

Andrew Petty

Norway !:thankyou:

Damn True
08-19-2008, 08:28 AM
But wouldn't the back of a cowl be a low pressure area? I could be wrong.

Maybe to vent some more air, maybe you could fab some vents like the following link has, on either side of the cowl: http://forums.nicoclub.com/zerothread/168601

You are wrong.

The whole point of a CI hood is to grab the high pressure air at the base of the windshield to force a bit extra into the engine. A little free ram-air effect.

SaturnVUEguy
08-19-2008, 01:10 PM
You are wrong.

The whole point of a CI hood is to grab the high pressure air at the base of the windshield to force a bit extra into the engine. A little free ram-air effect.I stand corrected!

TitoJones
08-19-2008, 02:04 PM
https://static1.pt-content.com/images/noimg.gif[/QUOTE]


Norway !:thankyou:

Stolen from Las Vegas!!

https://static1.pt-content.com/images/noimg.gif

Tyler

Johnny Blaze
08-20-2008, 08:57 AM
I'd like to see that pro mod front on a PT Car!

James OLC
08-20-2008, 01:14 PM
I'd like to see that pro mod front on a PT Car!

I looked into it when I was first laying out the one lap car. They actually have a five or seven piece kit including side skirts, etc. that they have available (fairly inexpensively) but in the end decided that it was probably too much. IIRC the air dam is available on it's own as well as grafted to the 'glass clip.

Bjkadron
03-02-2010, 06:21 PM
How is this for dragging up an old thread? I seem to be really good at that. So anything new?

Damn True
11-21-2010, 11:37 AM
The wing is somewhat inelegant, but the front valance is quite interesting.

https://static1.pt-content.com/images/noimg.gif

http://www.68camaroracer.com/pages/photos/photos.html

TitoJones
11-22-2010, 02:25 PM
Whoa. That thing is running center-lock wheels. Hard core.

Tyler

Damn True
11-22-2010, 02:27 PM
Whoa. That thing is running center-lock wheels. Hard core.

Tyler

According to his website most of the running gear is stuff from V8SCS cars.

sik68
11-22-2010, 03:20 PM
Baddest Camaro ever, indeed.


...yet another rebuild of the Camaro, this time employing Peter Holt, a New Zealander who'd spent five years as a fabricator and engineer with the Renault Formula 1 team, and a further nine years with the Williams (F1) touring car and rally teams, to completely rebuild the car into its most devastating guise yet.

This sentence just makes me chuckle in futility at my own build.

formula
11-22-2010, 04:47 PM
Needs more camber!!!

https://static1.pt-content.com/images/noimg.gif

Seriously--I wonder how far they've gone with their design? Or if anyone has taken a shot at doing cfd and figuring out what really needs to be addressed on a 1st gen?

Yelcamino
11-22-2010, 06:45 PM
These are cars that run down in Maxton, NC, right? I think ECTA runs at Maxton?

Yep, ECTA meets take place in Maxton.



I was on page two of this thread and just noticed (after my post of course) that I was commenting on something posted back in 2005! :hammer: