I have 2 question:






Thanks, Kyle

 

Hi kylekyle

Red Lined port is OK.
But I don't recommend yellow lined port.
Because, if so, Your FD idling is above 2000 rpm.

Thank you

 

thanks Inukai

 

Kyle,
When I did my own street port, I had SO MANY questions. Luckily, several people on the RX-7 Big List (email list) and this forum were able to offer me advice.
I made a small webpage with some of my experiences on it but please when you read it, remember: I AM NOT AN EXPERT.
This engine is in my car now with about 2500 miles on it and it pulls good vacuum (about 16 inches at 800+ RPM) and will idle smoothly down to 750 no problem. I dynoed the car and it seems to make good power and a nice torque curve. I think I did a good job on it, but there will some that say I should have gone bigger. Heheheh, maybe next time it's out!
Read my page and if you have questions, please PM me or reply to the thread. The one thing I will say is this: It's all about smoothly turning the air, so make your ports SMOOTH and nice curves to them. If you put your finger on the flat part of the housing and run it down into the port, it should "fall in" smoothly... Imagine a waterfall gently falling down into the port...

Brian

http://www.zeroglabs.com/rx7/porting.htm