Hello, Thanks for accepted me in the forum. I joined to this forum because I need information about how to make peripheral housing and other combinations.I hope somebody will help me soon.
Thanks.
Att.ChicoPR

 

need more info year of car turbo n/a ?

 

It is a1989 13b turbo engine

 

I shall assume you are refering to different porting options?? Well this webpage does a good job of describing the different port options, and what they can do. Be careful with the more aggressive ports like the J-bridge port, as if they are not done just right they will leak water into the engine, destroying it after several thousand miles. Also, make sure you have the intake and exhaust to handle the port jobs or you could lose power instead of gain. Porting is definitely something you should have done by a professional with rotary porting experience--the local machine shop guy just doesn't know what he's doing when there's no pistons involved.