6 port pictures

[David Jerome]

Here is a basic streetport I did a couple weeks back on a 6 port block. On this one I didnt fully polish the intake runners and bowl, I dont really believe it helps but some customers prefer it.:)

[David Jerome]

couple more pics

[David Jerome]

If you keep working, one day you will be able to make yours look and feel like mine. :D

You dont want none of my intake ports:D However, I dont want none of your exhaust ports:D

[David Jerome]

That shit is damn impressive. I thought I had passed my teacher, this young grasshopper apparantly still has a lot to learn:)

[Rotary Inspired]

Here is one of my 6 port motors. Please excuse the overuse of hylomar. I was a touch liberal.

[Rotary Inspired]

One more. Here are the primary ports in my 10th AE

[David Jerome]

Looks nice, I dont think you have to worry about the coolant seals moving during install :)

[Rotary Inspired]

Thanks. Who wants a pinched coolant seal? Thats an extra headache. I always like to see everyones port work. Each one has its own personality so to speak.

[N.RotaryTech]

Bwaaaha ha ha ha.
http://i184.photobucket.com/albums/x70/RotaryTech/100_1283.jpg
More in the link in sig.

[N.RotaryTech]

To late.
The engine is back together and running.
I'm waiting for some misc. replacement parts and the break-in period to be over, until I can see what those ports do.

[WE3RX7]

Thats an odd setup - yea, with the ports still IN though, I would think that would hurt performance while the ports are closed but who knows.

A note on those earlier ports by David Jerome - the shape is pretty good, but bevel them leading andedges! And on EFI - polishing the bowls does make a difference from what I've seen...

[N.RotaryTech]

Well Ive removed the sleeves and actuating rods.

I too have wondered about polishing the runners, haven't read much about it, it seems to me its either way effectiveness.
About the runners...
What dose one use, just a grinding stone, or is there a finer grit stone out there, or dose one somehow get a sanding thing in there, or all of the above, depending on how smooth one wants the runners?

[WE3RX7]

I use an extension for a electric dremel with sanding paper - working it with some fine paper and then hit it with some polishing compound. I'm a bling junkie though.

The concept for me is - on carb cars, usually keeping a mildly rough surface helps to atomize the fuel and oxygen as it tumbles through the intake track since carbs doent mix as well. However, w/ EFI - since the injectors spray pattern is MUCH more precise and accurate than a carb's squirter/metering block/jets, the fuel and oxygen atomize earlier/better, so you want as smooth as possible surface to accelerate the mixture...

Dunno, kind of old school logic, but makes sense to me...