Linc's log modification

[80Stang]

mill the top and outer side off the log kinda leaving a L shape pocket.

That is a good idea, but the bottom inside corner of the square tube would cut in too far I'm afraid.

I tried a few sketches on paper - - - you could mill off the whole side of the intake log (the outer 180 degrees of a 360 degree circle) and fabricate an oval shaped tube to fit into the inside half - or "D" shaped, with a flat outside and round inside.

I would like to see some pics of logs that have been milled to see how stright the log is (or not) to see how feasible these ideas are.

Don't know if these pics help you anyhow...

About two years ago I was thinking about how to improve the head so I decided to look into it. This is a '66 200 head and I guess it is pretty close to the "L" shaped pocket style mentioned above in these two pics:

http://www.ponikorjaamo.com/ti80/fsp/cut1.jpg

http://www.ponikorjaamo.com/ti80/fsp/cut2.jpg

and some months after that I grabbed the die grinder again and the same head now looks like this

http://www.ponikorjaamo.com/ti80/fsp/newcut1.jpg

http://www.ponikorjaamo.com/ti80/fsp/newcut2.jpg

http://www.ponikorjaamo.com/ti80/fsp/newcut3.jpg

Both these phases have been made with a big die grinder in about 15 minutes. "Design" basics for a working solution were:
1. to be able to port the intake side
2. minimal welding on head
3. not to destroy std exhaust attachment
4. to be able to attach a carb of your choice; 2V, 4V, multicarbs, EFI or what ever manifold one wishes to fab up

The newcut needs the cut milled straight, a flange to attach to head (can be bolted on at the rear but the front is more tricky) and another flange and an intake design of your choice to be fabbed up and welded to outer flange, which I think could be made of 1/4" thick material. The tricky area is at the both sides of the siamese exh port (3-4).

Anyway, the intake is so much higher at the rear and none of the ports are equally shaped, which makes it hard to implant tubes (for runners) directly to a design like this, and it would end up with a need to weld a lot.

Back then I made an intake design of cardboard for that, individual runners and a 4V plenum. Don't have a pic of it but it still exists.

 

[Anonymous]

Teppo, you really are an assett to this website. It is amazing all of the testing and work you have done with these engines.

You must be as curious a person about engine changes and design as I am!!

 

[Anonymous]

All of this log milling and cutting is fascinating, and when and if I ever acquire the skills or freinds to accopmlish it may even try it.

I think that mod Linc's posted with the carb turned and extra runners could be done by a guy in his garage.

If you have enough money it would be a no brainer to buy an SP head and go nuts. I love to see the lo-buck hi-tech mods that a fairly competent mechanic can pull off.

But I have to admit after looking hard at the head, and picturing the arrangement of the carb port pad's, I'm more than curious how to put it all together.

 

[Anonymous]

I think that mod Linc's posted with the carb turned and extra runners could be done by a guy in his garage.

That's the whole idea - not many people want to have to take everything to the machine shop.
The two holes under the carb are just slightly too far apart for it to be a direct line up - I'll have to make a 3/4" or so adapter plate with the holes angled outwards away from the carb holes to make it work.