> Porting is the only thing that i
> Evan,
> The only thing that concerns me is that you
> say you forgot to do this before assembly.
> If the head is on the car, it goes without
> saying, don't touch the head. But we will
> assume the head is off the car. I would say
> you will see the most benifit from a simple
> port matching. If you don't know how that is
> done, I am going to give a quick
> explanation.
> First, you need the intake gasket. A marker
> will do for the next part,(shops use a dye).
> Anyways, take this red or blue marker and
> mark all around the intake and exhaust
> ports. now, place the gasket on the head,
> lining up the bolt holes as it will sit on
> the head. You will notice that the openings
> on the gasket are significantly larger than
> the head. In some areas, the gasket will
> actually overlap the intake hole. Well, take
> a scribe,(like a dental pick), and scribe
> around where the gasket sits. This is to
> give you a reference for where you should
> remove material out to. For now, don't worry
> about the gasket that is overlapping the
> hole. Take your trusty dremel tool or
> similar, and start grinding away. The
> purpose is to get a smooth transition from
> the intake to the head. So this must be
> repeated for the intake,(ie put the gasket
> up to the intake, and scribe where material
> needs to be removed, after you marked it
> with your trusty marker.
> I wouldn't worry too much about the header,
> unless you have the stock manifold. With a
> steel header, it is hard to work with. If it
> is close, then you should be fine. You can
> play with it a little, but be careful, that
> material is not all that thick. If you take
> a significant amount of metal out of that,
> they you are creating a hot spot.
> Lastly, for the gasket, put it back on the
> head, and where it overlaps the holes,
> lightly grind away the gasket material. you
> may then have to go back and work on the
> intake manifold again. (the order is up to
> you).
> For extensive porting, don't bother, it is a
> science that requires a lot of experience to
> do well. Because if you do it wrong, then
> you will be worse off then a stock job.
> good luck. I would say it is worth your time
> if the head is in good shape.
> -Bob Hanvey
Bob, What might be the horsepower increase someone could expect to get from this mod on a non turbo ,and a turbo.
Thanks jason