Which exits through a tailpipe 1 7/8" in diameter.
You know, the factory did a lot of work to eke out the most
horsepower they could out of the poor little B series engine.
To make any improvements in one area, you are typically going to
screw something up in another. I remember all the modifications I put on my
MGB as a child. Mostly all I got was noise, dirt and shortened life.
Stick with the factory setup for all around use. K & N filter
replacements would be sensible if you were encountering lots of dust. I do
believe that they filter dust particles better than the original paper
filters. They had better do something for the price premium. But nothing
is free. K & N filters are notorious for being noisy, something the
original MG designers were very careful about. The K & N assemblies with
cast covers look really cool when new, and evidently offer some change in
airflow, as richer needles appear to be necessary. But they offer very
little intake silencing and after a while you have a pair of dirty filters
staring you straight in the face when you open the hood. I'm going to give
that set up a try, but more for "gee whiz" factor than for any sensible
reason.
But then, if I was sensible, I'd drive a Honda.
Kelvin.
> -----Original Message-----
> From: Bill Schooler [mailto:schooler@erols.com]
> Sent: Thursday, November 18, 1999 1:34 PM
> To: mgs@autox.team.net
> Cc: info@britbits.com
> Subject: Re: air filters
>
>
> Lessee now...air/fuel mixture leaves the carbs through two
> 1.5 in holes,
> going into the engine. The stock air filter cans have two
> openings, each
> bigger than 1.5 inches, say at least 1.75 inches. Where is this
> "restriction" to air flow coming from? It would seem that as long as
> the openings on the air filter cans are equal to, or larger than the
> openings into the intake manifold, that restriction would be minimal.
>
> Bill
>
> Carl French wrote:
> >
> > I wish to return to stock appearance air filters, I
> currently have the
> > generic flat chrome ones. I was considering using KN filter
> elements for
> > the elements. Any and all thoughts would really be
> appreciated. Also can
> > you discretly increase the air flow of the stock system
> somehow? Is that
> > needed? if so could I make cut-outs on the back side or something
> > equally stupid. Lawrie? others?
> >
> > Carl W. French
> > Woopie!! it's above 30 again! what a great excuse for a top
> down drive!
> > Be back in a bit.
>
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