Cold air intakes

Reply #135 – December 06, 2015, 12:37:43 PM

Quote from: V8Demon;452820

Where'd you get the black tubing goi g to the throttle body?

Here: http://www.siliconeintakes.com/holset-turbocharger/silicone-90-p-416.html

3.5 inch 90* elbow, 3.5 inch hump hose, and 3.5 inch aluminum pipe.

Cold air intakes

Reply #136 – December 06, 2015, 03:17:45 PM

Nice. Unobtainable in any store around here, including the local, and quite large, speed shop.

Cold air intakes

Reply #137 – December 07, 2015, 09:07:28 PM

Quote from: V8Demon;452823

Nice. Unobtainable in any store around here, including the local, and quite large, speed shop.

My local speed shop actually has these couplers in stock. The problem is they want more for them that the online store does so I just ordered them from the internet.

Cold air intakes

Reply #138 – January 07, 2016, 04:03:40 PM

So I figure I would give this whole thread a summary. Because why not? :hick:

The stock airbox fender opening on an 86-88 Thunderbird/Cougar (as well as 86-93 Mustang and 86-92 Lincoln Mark VII) is equivalent to a 5" diameter hole. This opening has the capability to flow almost 2000cfm of air, far more than any 302-408ci small block is going to need.

The stock paper element in the stock airbox flows about 600cfm, and repalcement panel K&N about 50cfm more (~650cfm). A BBK style cold air intake has a conical filter equivalent in size and flow to a panel K&N. So switching from a stock airbox with a panel K&N filter (with the silencer in the fender removed) to a BBK style cold air intake gains nothing as far as performance is concerned.

The stock rubber tubing between the airbox and throttle body (or MAF and throttle body if you've converter to MAF) is about 3". That's the minimum size you want to run if you replace this tubing with something else.

A common sized, 9" long, conical filter clamped to the end of a MAF can flow about 900cfm of air. If your combo needs more air than the stock panel filter can provide a 9" or so long conical filter is a good way to get the air. Your best bet is to not run the filter open to engine bay heat. Either enclose it in something like a March Ram Air box, build a heat shield that seals the filter from engine bay heat, or run something like an Anderson Ford Power Pipe that places the filter in the fender-well. The minimum intake tubing size in this application should be 3" ID. 3.5" or 4" ID tubing is better but not totally necessary.

So:

If you have a stock standard 5.0 or 5.0 HO just pop the silencer in the fender off and run a stock paper filter or a K&N panel. Don't waster your money on a BBK style cold air intake (unless it's for bling factor

).

If you've done GT40/GT40P iron heads, GT40 intake, and a HO or better cam the stock airbox with a K&N panel filter and silencer in the fender removed will flow plenty for your setup.

If you have AFR165/Edelbrock Performer/Trick Flow TW170 heads on your 302 then you're going to want to ditch the stock airbox to maximize your combination. One of the conical filter solutions above is your best bet.

Got a 331/347/363/351/393/408? You better be running 4" ID intake tubing and at least a 9" conical filter :D

Cold air intakes

Reply #139 – January 11, 2016, 06:08:31 PM

Can we edit the first post with the above listed summary added to it?

Would be great!