Im doing a Street port on my 6 port NA irons. This is the first center iron. Im using the Mazdatrix 6 port template.

Im worried about the inside curve being kind jacked. The stock curve went further in than the template which was odd.

Am I fubar-ing this or should I clean up that curve? *represented by the Bracket*

Also the corners aren't finished yet *arrows*

 

Bump. I need to know if I'm junking this iron or not.

 

Just work very carefully to smooth the transition between what you have ported and the stock line. There is some variability of the ports, however minor, from the factory. Notice the oil control ring line. You have very little material to work with. Use a sanding drum and work slowly.

As you may have figured out, cutting the port shape is the easiest part of porting. Blending it all together and making the transitions smooth is where the talent comes in.

This video may help as it gives an overview of porting:

 

Need to chamfer the edges some so that they aren't sharp and won't mess up the seals and possibly the rotor. Can fix that with a sanding bit and a lot of slow work along with patience. Never rush through a port job. Always stop and look after you chop some metal off.

 

Thanks guys! I finished them off yesterday and and I'll do a final polish when I get the irons back from the solvent tank.

 

looks good looking to go the same right shortly. let me know how it runs

 

Sorry to bump htis thread, but I have a new crisis.

I lost one of the primary injector sleeve things. Does anybody know where I can buy them? I checked my haynes manual and couldn't find it. What are these things called?

 

Nevermind I found it. Its the Injector "Diffuser". Mega overpriced but I found mine in the bin!

Fuel Injection Parts

 

Do you have any pics of what the final job looked like?