DIY head porting with a dremel?

[amalventano1@comcast.net (Allyn)]

yup, die grinder is a requirement. much more info here:
http://www.sa-motorsports.com/diyguide.shtm
very good info
Al

----- Original Message ----- 
From: "Dave Ewing" <rabbit16v@attbi.com>
To: "Scirocco List" <scirocco-l@scirocco.org>
Sent: Saturday, August 31, 2002 12:46 AM
Subject: Re: DIY head porting with a dremel?


> I did my first one with a dremmel and it increased the flow somewhat but I
> have learned since then that a die grinder is the only way to go!!  You will
> spend LITERALLY DAYS on that thing with a dremmel!!  A die grinder will make
> it so that you can do it in an afternoon!!  The bits for the die grinder can
> cost around $100  because you'll need something to take the aluminum away
> quickly then sanding and smoothing bits to sculpt and clean and polish.
> This is the way I did my last head and it turned out NICE!!  What might be a
> good idea, though, is to find a core head and experiment first!  Even when I
> did MY first head, I had experience doing others so I didn't just jump right
> in!
> 
> In my opinion, unless your reaching for every last little hp, you can
> effectively to it yourself.  The reason why most people you hear have it
> done professionally (technically, I am a professional) is that they want it
> flow benched AND they want someone to blame if it doesn't work!!  Plus, most
> who have any or all their work done by someone else either have no time and
> gobs of money or no desire to get their hands dirty (or afraid to!!).  It is
> not wise to always listen to someone else and not to follow your gut!!  If
> it is something you really think you can do than go for it!!  I am a huge do
> it myselfer and I like to live by two sayings (one I made up myself!!)
> 
> If man made it, I can fix it!! (notice, God made women, not man!!)
> If it doesn't kill you, it can only make you stronger!
> 
> Dave
> ----- Original Message -----
> From: "T. Reed" <treed2@u.washington.edu>
> To: <scirocco-l@scirocco.org>
> Sent: Friday, August 30, 2002 9:12 PM
> Subject: DIY head porting with a dremel?
> 
> 
> > Okay, well this is gonna sound stupid coming from an inexperienced
> > youngin' like me.. but..
> >
> > With everybody running to pay a shop hundreds of dollars to get their head
> > ported, is there any reason I can't just do this myself?
> >
> > I mean.. looking at before and after pictures of 16v intake and exhaust
> > ports on people's web pages, it looks like somebody just took a dremel
> > with a grinding bit and opened up the ports a little without making the
> > outside surface any bigger. I consider the dremel tool to be the
> > handyman's 3rd most important secret weapon (after vice grips and duct
> > tape) and I feel quite confident with a dremel in hand. I don't see any
> > reason why I couldn't just duplicate the re-shaping of the ports as shown
> > in the photos myself. Or is there something more to this that I'm missing?
> >
> > Why do people send this work away to be done by professionals? Is it the
> > risk of taking off too much material and ruining an expensive 16v head?
> > Fear of screwing it up and actually reducing the engine's power? Or is it
> > just a sense of "if you're going to do something, do it right"?
> >
> > Maybe I'm being stupid here and grinding material away like that only
> > helps if you put bigger valves in too..
> >
> > Being a cheap bastard, and being that I'm going to be pulling my head
> > real soon now anyway to put in a 2 liter block.. I just have to ask
> > because if $20 worth of dremel bits will buy me some more ponies, I'm
> > game.
> >
> > -Toby
> >
> >
> > _______________________________________________
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> 
> 
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