redman76

Yes, you re-use the old black spoiler but will have to modify if you are installing the one-piece fiberglass PC spoiler.

REELAV8R

Nice pic Gusto, is that in Midland TX? Used to live there when the CAF was based there.
Your extension looks a lot nicer than my home made version.

Big Block Dave

If installing a 3 piece spoiler, then you must remove the original piece.

After installing an aluminum radiator, change of thermostat, and replacement of shroud seals, I did notice a difference after then installing a 3 piece pace car spoiler. The car ran cooler at high way speeds.

scottyp99

I think this is one of those "trick" pictures.....if you stare at it long enough, you'll start to notice there's a great, big airplane with a bunch of dudes standing in front of it in the background!

Scott

509 rat

I have the other type spoiler going to get rid of it, where did you get that one ,or where can I go thanks. whats lics stand for.

GUSTO14

The picture was taken after an air show in eastern North Carolina at the home of the MV-22 Osprey. Our Corvette Club was assisting with the clean-up and returning the field to operational status after the show. Some of the display aircraft were still present and taking publicity shots with support staff so I thought I would take a few shots of my own. The car is actually well away from the aircraft so I backed up to get it framed just so with the B-17 in the background. I think a few of them came out very well...

I first learned of the radiator extension about 1980 from a magazine article and bought one for my 1977 to add a bit more dimension to the front end. It added a lowered appearance to the front end without actually lowering the car and because of its flexibility was curb friendly, all for the princely sum of about $20! Later in 1988 when I bought the '73 in the picture it was one of the first things I added to it. The effect was the same and it had the added benefit of masking a slightly damaged spoiler.

LICS is Long Island Corvette Supply, http://www.licorvette.com/, a well established 63-67 Corvette parts source that enjoys a great reputation with many C2 aficionados. I believe that they carried it at one time, but can not now find it in their catalog. However I did find it in Willcox's catalog http://willcoxcorvette.com/product_i...=27465&osCsid=

It says that the retainers are not available, but they are simply two (one for each side, #6 in the pic) flat pieces of about 1" wide sheet metal painted black that act as reinforcements on the back side of the stock plastic spoiler (#3).

Good luck... GUSTO

vetteguy75

I'm getting the Vert back tomorrow....will send pics and test the cooling factor!

76CSRvette

I got the plastic piece awhile ago cuz car would overheat and the small chin spoiler made a difference when I added the indy style one piece connected to the plastic and haven't had it go up over 200f on a hot day. And it looks cool.

vstol

This is exactly what I have been looking for my project...thanks

http://forums.corvetteforum.com/c3-t...ica-kinda.html

7t2vette

I have one that was on my car that I will sell. You can see it here:

vstol

Thanks for the offer, but I think I will slide and purchase it new. By the way the car and spoiler look great. Why do you want to remove it?
Kevin

7t2vette

Thanks. I removed it because I wanted something different to help stabilize the car at higher speeds.

vstol

So that's your car with the spoiler. Very nice where did you get the spoiler and what did you cover it with? Also did you see a difference in the stability of your car?

7t2vette

Thanks again. The spoiler came from Ecklers, it is the Pace Car spoiler made for chrome bumper cars.

I covered it with 3M Di-Noc carbon fiber vinyl wrap, it is very realistic in both looks and feel.

I did notice a difference in stability at speeds above 120mph.

Mooser

Not wanting to hi-jack but what does that spoiler (the new one you put on) look like where it meets the wheel well lip? Does it wrap around at all?
Thanks
M

7t2vette

It basically continues the line of the wheel opening. This is the best pic I have at the moment

Mooser

Hmmmmmm, that might be close to what I've been looking for

Thanks, if you get a chance to snap a pic of the back side where it goes up the edge of the well I'd appreciate it.
(Can't even seem to get out to Uxbridge as a passenger so far this year)


M

TheSkunkWorks

The factory designed PC air dam does improve cooling, by increasing pressure on the face of the radiator while decreasing it below the car aft of the rad. However, not all PC style air dams are equal. The factory designed PC air dam, unlike at least some aftermarket ones, includes an integral isolator panel to keep air from leaking back beneath the car behind the dam and ahead of the radiator. With air dams that don't include the isolator, you must install an isolator such as the one illustrated in GUSTO14's previous post to avoid this being an issue.

As for other aerodynamic benefits, I don't have hard numbers to back up findings made by the sensitive instrument on which I sit, but the PC aero kit (front dam & rear spoiler) most definitely kills lift at higher speeds, and almost certainly produces downforce. Factory claims back in the day were of approximately 15% improvement to the drag coefficient w/PC aero kit vs w/o.

For those concerned with very high speeds, one fly in the ointment I've found with the factory PC air dam is that the center section requires some form of bracing to avoid the onset of rapid oscillations (yes, I mean flapping up and down) and/or folding under outright (BTDT). This problem is fairly obviously due to the factory's concern with damage from curb strikes, and thus the flexible material from which it's made. While a full-blown, extended splitter with struts may not be practical for everyone to consider, it might be possible to get by with a hidden backing panel of some sort, as long as it is sufficiently supported for the speeds in question. (For my needs, next stop is doing a genuine splitter.) Not sure what measures were taken on THE actual Indy Pace Car used in '78 for the 500, but they had to have done something to combat this very real problem...

Anyway, although the PC dam/spoiler package doesn't necessarily represent the pinnacle of C3 aero development, it is nevertheless a sound design, as long as those nearer the hardcore end of the scale respect the shortcomings of its execution. Oh, and Captain Obvious demands I advise that if you do happen to like traveling fast, you should always make certain that any front dam is offset by a sufficient amount of spoilage out back. It may be meaningless at a pedestrian pace, but I've had a rear wing fail at speed (on track), and believe me aero imbalance is NOT your friend. My $.02, which I hope covers something not already discussed to the OP's satisfaction.


TSW

vstol

This is where I got the idea as to what spoiler to get

http://lateral-g.net/2013-good-guys-...oss-final-run/

jano344

When you added this.....did you use any type of metal retainer across the back of the spoiler extension?