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VALVES More is Better



 
 
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Old January 12th 09, 07:59 PM posted to rec.aviation.homebuilt
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Default VALVES More is Better

If you'll go over and take a look at my blog, the first article is a
thingee about valves.

It is mostly basic stuff but if also includes a few tricks of the
trade that allows your engine to take a deeper breath when using just
the STOCK valves. This is another of those cases where you pick up a
bit more power for FREE, assuming you're willing to put some work into
it.

This isn't new material. Some of the drawings are ten years old. But
I've included a photo taken just last night (Sunday, 11 Jan 2009) to
quell the qualms of a young fellow who was pretty sure I was shooting
him a line, in that, if doing all that stuff to a simple valve was so
GOOD, how come he'd never seen it in any of 'his' magazines.

I don't know. Perhaps you should be directing such questions to 'his'
editors.

But for all the rest of youse guys -- the ones who DON'T own a
magazine, you might want to take a peek at Bill Fisher's book. Yeah,
I know... first published in 1970, meaning it must be outta date...
except it isn't. In Bill's book, on page 51 (of my edition, printed
by H.P.Books in 1970) Bill has kindly included a drawing showing the
head of a valve which incorporates the features I've described in my
blog article. But what's possibly of more importance to you, I've
explained how you can modify an EXISTING valve; how to round the
corners and get rid of the lip, so as to allow the valve to FLOW
BETTER. Which is what we want.

You be the judge. Which is only fair, since you are the Mechanic-in-
charge.

-R.S.Hoover
 




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