Berserker

...I just upgraded my exaust to a Greddy Power Extreme....now it seems that my car is running a little rich and every once in a while when in 1st or 2nd gear, it sounds like it backfires.

Now my questions are is this bad and what needs to be done?

My mods are listed below.

I am also considering getting a ECU right away, was going to wait, but I do not want to destroy the engine. What would you guys recommend?? My RX-7 is just a daily drive and I am not looking for extreme power, just mods that will help maintain my engine. Although as I have noticed it seems like whenever I upgrade one thing, I need another...an endless circle...

Nike178

I think its about time for u to add an ecu. After 2 mods, u should do it. As far as backfiring, don't worry about that. It's just back pressure in the exhaust. With the mods u have, any ecu will do the job, of course, the power fc would be ur best choice

Sidestick

iTrader: (1)

Don't worry man. FDs do that when you change the stock exhaust. Many people including me shoot 1-2 foot flames sometimes!

As for always wanting to upgrade something...welcome to the world of the FD money pit.

solo1seven

How would increasing air flow (Gredy Power extreme) cause a car that apparently does not electronically compensate with increased fuel to run rich?

Mahjik

iTrader: (1)

He said "now it seems that my car is running a little rich". I'll bet he was assuming the backfiring was being caused by the car running rich.

Just a confused soul trying to make sure his FD isn't going to explode.