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Message started by fsmidt on 01/10/08 at 16:30:51

Title: porting head.
Post by fsmidt on 01/10/08 at 16:30:51

let me start this topic.

how do we port our beloved suzi`s head to burn more fuel and create more Horse power.

stock head.

http://i60.photobucket.com/albums/h5/fsmidt/Exhaust_Port_1.jpg

a little bigger exhaust port

http://i60.photobucket.com/albums/h5/fsmidt/exhaust_big01.jpg ;)

Title: Re: porting head.
Post by T Mack 1 on 01/10/08 at 18:43:25

Experience and http://www.dremel.com/ .

Go too far and it might as well be a boat anchor. Sometimes it pays to have a pro do stuff.

Title: Re: porting head.
Post by Savage_Greg on 01/10/08 at 20:12:41

Depends on how you look at it. Some people think the head is a boat anchor before they start grinding :P

He's doing it "blindly" kinda like I did. I read some stuff, but there's nothing to read about a Savage. So I started grinding...in some ways, more aggressively than he did, but I stopped at the outlet when I got to 36 mm.

Title: Re: porting head.
Post by LANCER on 01/11/08 at 00:52:22

I believe mine is in the 37mm range.
I like boats, and anchors, but wouldn't want to have to drag one around. :D

Entrance into intake side is roughed slightly to improve the break-up of fuel droplets that may try to adhere to side of wall, thereby improving vaporization of fuel/air mixture
http://render1.snapfish.com/render2/is=Yup6aQQ%7C%3Dup6RKKt%3Axxr%3D0-qpDPfRt7Pf7mrPfrj7t%3DzrRfDUX%3AeQaQxg%3Dr%3F87KR6xqpxQQQaxJQexJlGxv8uOc5xQQQJalla0JPnGqpfVtB%3F*KUp7BHSHqqy7XH6gX0QQQl%7CRup6lQQ%7C/of=50,590,442

In this one you can see the early stages of the preparation of the transition from rough to smooth in the intake tract. More work was done after this to improve the gradual change from rough to smooth but I could not find the pic right now. Ideally, just before reaching the valve itself the intake tract should be POLISHED GLASS SMOOTH, I am not quite at that level and lack a few tools needed for that perfect finish....but working toward it.
http://render1.snapfish.com/render2/is=Yup6aQQ%7C%3Dup6RKKt%3Axxr%3D0-qpDPfRt7Pf7mrPfrj7t%3DzrRfDUX%3AeQaQxg%3Dr%3F87KR6xqpxQQQaxJQexJlGxv8uOc5xQQQJalla0ol0nqpfVtB%3F*KUp7BHSHqqy7XH6gX0QQPQ%7CRup6lQQ%7C/of=50,590,442

Smoothing and opening of right side of exhaust port
http://render1.snapfish.com/render2/is=Yup6aQQ%7C%3Dup6RKKt%3AxxrKUp7BHD7Kofrj%3DQofrj7t%3DzrRfDUX%3AeQaQxg%3Dr%3F87KR6xqpxQQQaxJQexJlGxv8uOc5xQQQ0loPQo0PGGqpfVtB%3F*KUp7BHSHqqy7XH6gXPla%7CRup6lQQ%7C/of=50,590,442

Smoothing and opening of the left side of the exhaust port
http://render1.snapfish.com/render2/is=Yup6aQQ%7C%3Dup6RKKt%3AxxrKUp7BHD7Kofrj%3DQofrj7t%3DzrRfDUX%3AeQaQxg%3Dr%3F87KR6xqpxQQQaxJQexJlGxv8uOc5xQQQ0loPQo0PGJqpfVtB%3F*KUp7BHSHqqy7XH6gXPla%7CRup6lQQ%7C/of=50,590,442

I am following the techniques of a dude from California who builds HD engines for WORLD RECORD RUNS ON THE SALT FLATS, so this is a VERY LOFTY GOAL I am working toward.

Title: Re: porting head.
Post by Savage_Greg on 01/11/08 at 05:17:23

This is my exhaust port. I didn't open the outlet as much as these others, but spent most of my time on polishing and removing material inside the exhaust port. The end result was an increase of 2 mm at the outlet.

The intake was done pretty much like Lancer's. I didn't think too much was necessary since the intake is much bigger than the exhaust anyway.

http://i21.photobucket.com/albums/b277/gmdinusa/Head_Rework_2.jpg

In the end, with a Raask exhaust, my outlet was closer to the diameter of the header pipe.

http://i21.photobucket.com/albums/b277/gmdinusa/ExhaustHeaders_2750.jpg

Title: Re: porting head.
Post by azjay on 01/11/08 at 05:29:19

good pics, thanks to all of you!

Title: Re: porting head.
Post by Savage_Greg on 01/11/08 at 11:11:14

Glad that you liked my pics too...NOT.

Don't know what's up with Photobucket displaying my photos :-/

Title: Re: porting head.
Post by azjay on 01/12/08 at 05:46:20

467364665E373431010 wrote:

Glad that you liked my pics too...NOT.

Don't know what's up with Photobucket displaying my photos :-/

they worked for me :-?

Title: Re: porting head.
Post by Savage_Greg on 01/12/08 at 08:11:31

504B5B5048310 wrote:

[quote author=467364665E373431010 link=1200011452/0#6 date=1200078674]Glad that you liked my pics too...NOT.

Don't know what's up with Photobucket displaying my photos :-/

they worked for me :-?
[/quote]
I see that now...Photobucket must have been down for a few hours yesterday...