Did the plenum reduction and the the runner shortning! Check the
archives, I documented it all and even included that article from Mopar
mag.
Eric
Gary Shook wrote:
>
> I am not aware of any method to allow welding of stainless steel to
> aluminum... ;-)
>
> I guess we're not picturing the same thing... with the intake off, the
> 'bathtub' gasket covers the whole lifter valley... it is made of thin
> stamped steel... the stock Magnum intake is completely open on the bottom,
> exposed to this bathtub gasket that is heated by oil spashing off the cam...
> What I have heard of being done is to seal up the bottom of the intake so
> there's a layer of air between the bottom of the intake and the bathtub
> gasket... the bathtub gasket then acts like a heat shield... the extra
> benefit is that the stock design is prone to vacuum leaks.. sealing the
> bottom of the intake solves that problem.
>
> and while the intake's off, but before you seal it up, fill up some of the
> phlenum volume of the intake by welding in some filler... and shorten the
> runners slightly... a Mopar rag had a whole write up on this intake mod...
> and I thought F&B were talking about looking into doing this... once they're
> caught up on TB's....
>
> Gary Shook
>
> >Actually, welding a sheet of stainless (special
> >flux, gas needed to do this!) would be MUCH better,
> >stainless is a poor heat conductor, where the aluminum
> >is a very good thermal conductor.
> >
> >> bathtub gasket that makes up the bottom of the intake, with hot oil
> >> splashing on the bottom of the gasket... I know there's a gain to be had
> >> just by sealing up your stock intake- having plate aluminum welded to the
> >> bottom of it would work great for this purpose...
> >
> >Mike
> >--
> >"Thoughtcrime was not a thing that
> >could be concealed forever. You might
> >dodge sucessfully for a while, even
> >for years, but sooner or later they
> >were bound to get you."
> >- George Orwell, Nineteen Eighty-Four
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