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Originally Posted by bubbahotep
Ive got the typical air cleaner on the carb which is open on all sides and basically sucks hot air from the engine compartment. A great design thats still in use.
I wanted to install something like the Spectre modular air intake system or something similar from a company called Airaid (air raid) I think. Both are about $300 for basically paper thin tin with a shine on them. Are there any other brands out there? Am I wasting my time?
I have an 86 SS which has room to run the plumbing down to front of the car just under the nose. It has a stock hood (not cowl). Im not looking to create a ram-air intake, I just want cold air. The cars been driven in dead heat traffic in summer for many many years but its time to cool the air down if I can. And maybe make it look pretty. Its more of a street driver than a race car so it does see excessive heat.
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The KISS solution and it's way cheaper than these aftermarket gadgets is simply to use the factory air cleaner. These are usually designed to pick up cold outside air and if you can't find one like that a simple length of dryer vent hose from the snorkel to a suitably sized hole in the radiator frame so air from behind the grill can be sourced works great. You can leave the hot air pipe functional or shut it off, but living in NYC, this will be handy on cold winter days. These are designed to shut off when ever the engine is fully warmed or WOT is demanded, they are much better systems than the average hot rodder realizes. Also, inside the factory air cleaner housing is a radiused floor, this is essential to maximizing air flow into the carburetor. Compared to a flat floor, the large radius is good for increasing carb air flow at WOT by about 6 percent see here
http://www.knfilters.com/Racing/stubstacks.htm
Also, you can use a K&N OEM style filter to gain even more WOT flow. Fitting with a factory filter box can lead to some mods. Basically you want to blend the factory floor radius into the vertical portion of the stub stack. This may mean you cut the radius off to where the stub stack can be blended into the filter housing. You want to smooth the blending radius. If you have and can weld that works best, if not, epoxy and sand paper work fine to make the attachment and blend the radius smooth.
These things will provide on the order of 10 to 15 percent more power at a fraction of the cost of these boutique intake items you're looking at. May not look as cool, but it works and works extremely well.
Bogie