Date: Sun, 27 May 2001 12:01:15 EDT
Reply-To: CMathis227@AOL.COM
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Chuck Mathis <CMathis227@AOL.COM>
Subject: Re: Air Intake Project
Content-Type: text/plain; charset="US-ASCII"
Before you get too far into doing this check out
http://www.msdsinc.com/vanagon1.htm. Michael already makes what you are
talking about. I think Peter Cassidy has been using one of these for quite
some time and likes it.
I'm not too certain of the advantages of doing this. The big square box does
have a relatively large filter area and unless you can create a true ram-air
system I don't see how having a smaller filter on the other side of the wall
can make that much difference since the air will still have to tumble through
the connector tube to the throttle body then through the manifold into the
runners before it gets to the cylinders. A long sentence (sorry) and a long
trip. You also need to work in some sort of water trap to keep rail from
getting into the system.
I am using a K&N filter in the stock square box and noticed a slight increase
in scoot and a very slight increase in fuel economy over the clean paper
filter I replaced.
Chuck
'85 Wolfsburg Westy -- 'Roland the Road Buffalo'
In a message dated 5/27/01 5:45:14 AM, wayout@IX.NETCOM.COM writes:
<< Hello
I am thinking seriously about trying to improve the flow of intake air by
replacing the stock air filter box in my 85GL.
Mostly using the fabrication guidelines from this webpage
http://www.teamdelsol.com/howto/coldair/diycoldair.htm
Basically the idea is just running a section of mandrel bent steel or
aluminum tube from the AFM to the bottom of the passenger side engine
compartment vent, and installing an appropriate K&N airfilter on the end of
the tube that hides in that little hole (where the original air filter tube
went),
in theory this would improve things by:
- NOT trying to force the air diagnally through that stock square box
anymore... instead, letting it get a good running start down the section of
tubing before it goes through the AFM
- Using a less restrictive K&N style filter
- it would continue to draw intake air out of the cold(er) air coming down
the engine compartment vents
Theres a few questions running through my brain about this...
1.) How would I figure out the right diameter of pipe to use for this?
2.) How to attach the new intake tube to the AFM....I wonder if could have
the new piece of tubing welded to the AFM? Is there a better way?
3.) Is trying to get "cold air" and build velocity by using a long piece of
tubing routed to the bottom of the vent a worthwhile endeavor on a Vanagon?
.....Or is this whole thing just retarded, and I should just throw a K&N
filter in that big bastard, stock, air filter housing?
That stock thing CANT really be a good intake system can it? It doesnt
really make sense that air would really flow through it very well.
Thanks for you input folks...
Jason Loewenstein
Marysville / Tulalip, WA
85GL >>
