The idle problem might just be related to the stock ECU. You shouldn't really be running a street ported motor with a full 3" exhaust on a stock ECU. Bad things waiting to happen. If you can't afford a PFC, just leave the car parked and OFF because you can/will break something and cause more expenses.

thewird

 

what could i break?

 

Apex seals. Not to mention your fouling your motor because its running rich at idle due to less air velocity.

thewird

 

whats fouling mean?? how could it damge apex seals?

 

By fouling I ment since its running so rich idling its fouling the spark plugs and carboning up your combustion chamber.

But that is the least of your worries. The bigger problem is that if you go into boost, you will be running lean due to the free flowing 3" exhaust and a street port (neither of which should be ran on stock ECU by itself, let alone together!). You have a high probability of blowing your motor (the apex seals) very quickly.

thewird

 

ahh well i never knew that ...haha im not new to rotarys but this is my first ported engine ...where could i find a pfc with commander for my 93 jdm (right hand drive) imported rx7?

 

The powerFC's work for both JDM and USDM models as long as its for the 92-95 series, look in the for sale section and/or post a WTB thread. Afterwards you need to get it tuned as well. If your local, I can help you with that.

thewird