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I know there was some discussion on the "Cold Air Boxes" for Carrera Carburator air induction back in 2010 but there was not much elaborated on this. Does anyone know of a manufacturer of these or has anyone made some of these for their Decklid? I am researching this but not finding much other than examples of how these looked on the early GT's and Speedsters. It appears that these were bolted or rivetted onto the decklid. Anyone attempt to make these with any success? Thx.

"Dutch"

'57 IM 356A Carrera Speedster Replica

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Theory is that cooler, denser air would provide a denser air charge for better combustion and enhanced horsepower.

 

The 'Cold Air Intake' shrouds on the louvered Carrera Gt deck were designed to fit directly over the carbs and seal against the air filter base. The dual-carb configuration of the typical Type I engine in our Speedsters (air cleaners right up against and under the body shell) would make a fabrication project like this too difficult for the minimal return of horsepower.

 

Another drawback would be the collection of water (rain, washing car, heavy fog) in the air box getting sucked into the carbs and possibly causing hydrolock (bad Ju Ju).

 

K&N makes various Cold Air Intake kits that could be modified for 356 application. This way you would have the 'Cold Air' draw for the carbs without major cost & fabrication but not the 'look' of a Carrera GT deck lid.  

Last edited by MusbJim
Did not think about condensation dripping through the louvers Jim, that makes sense. I was more thinking about the cosmetic correct look of the original Carrera deckles. Appreciate the feedback!
 
Originally Posted by MusbJim - '14 VS SoCal:

Theory is that cooler, denser air would provide a denser air charge for better combustion and enhanced horsepower.

 

The 'Cold Air Intake' shrouds on the louvered Carrera Gt deck were designed to fit directly over the carbs and seal against the air filter base. The dual-carb configuration of the typical Type I engine in our Speedsters (air cleaners right up against and under the body shell) would make a fabrication project like this too difficult for the minimal return of horsepower.

 

Another drawback would be the collection of water (rain, washing car, heavy fog) in the air box getting sucked into the carbs and possibly causing hydrolock (bad Ju Ju).

 

K&N makes various Cold Air Intake kits that could be modified for 356 application. This way you would have the 'Cold Air' draw for the carbs without major cost & fabrication but not the 'look' of a Carrera GT deck lid.  

 

Thanks for your reply as well. I know about GT Werks, they would not be cost effective for just a Cosmetic addition to get the look of a Carrera Deck. I do like the look of the Air boxes though. 
 
Originally Posted by chines1:

We've never used them on one of our replicas, but have looked into them for a restoration project.   GT Werks can make them for you in steel (possibly aluminum)

 

These are great shots of the actual base portion that the Cold Air Boxes fir into when the decklid comes down on them. They sealed the carbs but with the velocity stacks exposed(no air filter) I wonder if they would be succeptible to water intrusion from the louvers? If you notice there is alos just a screen between the uper decklid and the Airfan section, again that looks like potential exposure to water intrusion or like Jim put it, bad JUJU!Thanks Aranji, nice examples!
 
Originally Posted by arajani:

 

image1 [1)

image1I think this is what everyone is talking about...

 

 

Dutch:

My pleasure. I know a couple of things about GT coupes -- Carey Hines is restoring an original 356A into a GT tribute car for me as we speak. It has all of the special GT bits on it, except for this, the fuel filter, front mounted oil coolers and GT brakes (and the 4 cam, of course!). 

 

There were a set of cold airboxes for sale on the registry a few months ago. The guy wanted thousands for them. 

 

Anand

Originally Posted by BobG '57 VS:

Just cool looking....

 

In the absence of something in the Carrera owners manual about avoiding driving the car in the rain, I'll bet an order of schnitzel that those Teutonic engineers rigged up something to avert moisture away from the carbs. Maybe there were rain hatsOAS part of the original setup.

The Carrera GT was a race car, it's not going to have everything that would be needed for practical everyday use. The louvers themselves are going to prevent rain going straight in and the running engine can ingest a certain rate of water spray without problem. If there's more than a hole drilled in the bottom of those pans so they don't fill up I'd be surprised. The gaps around the idle jet snorkels would be enough.

Last edited by justinh
Hello Anand - I would be very interested to see some pics of your 356A, is that a Speedster or a Coupe and what year? What motor does it have now?
Understandable that the 4Cam motor would not be part of the project -way too expensive and a minor tuneup is a major project. In retrospect the Cold Air boxes would have to be built very differently if even possible to place the replica's due to the difference in the Fan housing and other space restrictions. BEst of luck with your restoration!
 
Originally Posted by arajani:

Dutch:

My pleasure. I know a couple of things about GT coupes -- Carey Hines is restoring an original 356A into a GT tribute car for me as we speak. It has all of the special GT bits on it, except for this, the fuel filter, front mounted oil coolers and GT brakes (and the 4 cam, of course!). 

 

There were a set of cold airboxes for sale on the registry a few months ago. The guy wanted thousands for them. 

 

Anand

 

I would agree Justin, there must have been some means of draining water intrusion in those bottom pans around the Velocity stacks...you would think anyway.
 
Originally Posted by justinh:
Originally Posted by BobG '57 VS:

Just cool looking....

 

In the absence of something in the Carrera owners manual about avoiding driving the car in the rain, I'll bet an order of schnitzel that those Teutonic engineers rigged up something to avert moisture away from the carbs. Maybe there were rain hatsOAS part of the original setup.

The Carrera GT was a race car, it's not going to have everything that would be needed for practical everyday use. The louvers themselves are going to prevent rain going straight in and the running engine can ingest a certain rate of water spray without problem. If there's more than a hole drilled in the bottom of those pans so they don't fill up I'd be surprised. The gaps around the idle jet snorkels would be enough.

 

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