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Old 04-22-2011, 02:15 PM
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@ Full Throttle Al

very nice...

how long do you drive without filters...?
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Old 04-23-2011, 03:34 PM
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Cobra Make, Engine: CSX4083, NOS 427 SOHC, serial number 589. Dyno'd in 1967 at 629HP with single 4v 560 Holley. Now with 4 Webers.
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The motor is a NOS SOHC 427, "Cammer", serial number 589 of about 1100 total produced. I have been driving it without air cleaners for 14 years, but only about 2500 miles total.

Keep in mind that some of the best race cars of all time, including original Cobra's, ran Weber's without air cleaners.

It is one thing to expose the engine to a dusty enviornment, but keep in mind that many cars now come with 100,000 mile air filters. Just how much dirt/dust are you trapping in 100,000 milies., I would venture to say, not that much.

Webers, carbs of any type, are not the state of the art anymore. I choose Weber's because of their history and looks and I think (my opinion) that air filters, even screens, detract from that goal.

No doubt, others will disagree with my opinion and will not hesitate to share their views on the matter!
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Old 04-23-2011, 08:13 PM
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Quote:
Originally Posted by Full Throttle Al View Post
The motor is a NOS SOHC 427, "Cammer", serial number 589 of about 1100 total produced. I have been driving it without air cleaners for 14 years, but only about 2500 miles total.

No doubt, others will disagree with my opinion and will not hesitate to share their views on the matter!
In my view, When you pop the hood and show that bad boy, you can say whatever you want!
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Old 04-24-2011, 12:13 AM
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Cobra Make, Engine: SPF2984 MK111, Roush 511 IR FE 8 Stack, Dynoed: [flywheel] 572HP at 6000 , 556# Torque at 4700, Bowler 4R70W Auto Transmision. Tires: Mickey T's S/R 26.0x10.0x15.0 F ,26.0x12.0x15.0 R Color, Bleck, because they told me it was Bleck, at the factory.
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In my view, When you pop the hood and show that bad boy, you can say whatever you want!
Amen, I will second that. That is without a doubt a mighty fine lookin' engine. Congratulations.

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Old 04-23-2011, 09:07 PM
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Quote:
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".......Keep in mind that some of the best race cars of all time, including original Cobra's, ran Weber's without air cleaners..........."
race cars, Cobra & otherwise, are rebuilt after every race weekend or two. There are several reasons for doing that, not the least of which is that the clearances have increased beyond acceptable tolerances.

Are you willing to rebuild your engine after every few hundred miles?

Quote:
Originally Posted by Full Throttle Al View Post
"..........Just how much dirt/dust are you trapping in 100,000 milies., I would venture to say, not that much. .........."
have you ever changed an air filter? It doesn't sound like it.

Lay out a white tablecloth. Remove an air filter from any car that has seen a few thousand miles of normal service. Tap the filter repeatedly against the tablecloth.

Bet it isn't white anymore.

It doesn't take ounces of dirt to destroy an engine, when mixed with gas & oil. Only a few milligrams will do the job nicely.

But hey, it's your car to use & abuse however you see fit. But you're in denial if you think doing without filtration has no drawbacks.

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Last edited by zrayr; 04-23-2011 at 09:11 PM..
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