Does anyone know of a K&N air filter model that will fit a '63 340hp/L-76?
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Re: K&N for '63
You can look it up on their web site, but why would you want to downgrade your car? -
Re: K&N for '63
Even Hot Rod Magazine a few years ago found that K&Ns were only mid pack when tested against a variety of other same size filter elements including several leading brands of cellulose type. The test suite included both flow bench testing and engine dyno tests of all the filter elements.
K&Ns depend on the proper quantity of oil to filter effectively. If they get too dry, they will allow loads of small particles to pass that a cellulose filter will catch. If they have too much oil, it gets pulled into the intake. On modern cars excess oil can foul the MAF sensor.
As far as their "washability" is concerned, would you wash out a used oil filter and reinstall it? How do you know that you actually were able to remove all those hundreds of thousands of tiny particles than could be as small as ten microns.
Think about that!
DukeComment
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Re: K&N for '63
Duke,
Given that the K&N filter is inferrior to good quality paper elements. Any thoughts on how it compares to the std filter used on the 3x2 cars?Comment
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Re: K&N for '63
If it's one of those urethane filters like was OE on my '63 L-76, they are pretty poor as far as particle filtration is concerned. They will trap small birds and large insects , but won't filter out sub-20 micron particles like a modern cellulose material.
I think the reason GM used those urethane elememts is that there is restricted vertical clearance on Corvette engine installations, so the filter area available in an element less than 2" high is restrictive relative to the engines' air demand.
When the butt joint on my urethane element separated circa 1968 the GM replacement element was cellulose. I'm not sure if the urethane filter for my engine was EVER available from GM service parts. The only service part from day one may have been cellulose.
Maybe there is a message there!
In the long run I think you are better off using a quality name brand (except Fram) cellulose filter element and accepting the few percent power hit at the top end.
Keep the urethane element handy for judging and maybe track events if you run them and really need that extra few percent peak power at the top end for a day.
DukeComment
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