As the title states, I just installed a ZEX kit on my '06 6spd. I have a UTEC which I used for fuel and timing tuning, however I had some issues getting the spare solenoid to function correctly, so I just used the TPS switch for now.

I removed the intake box and used an open air filter to make room for where I mounted the nitrous controller, but otherwise the car is bone stock. Here's my dynosheet:



Overall the results are expected, but I am curious as to how some of you have setup your UTEC/nitrous installs. I searched around and found on some WRX forums that the UTEC spare solenoid is a switched ground, not power, is this correct?

I'll post pics of the install later, it's raining right now.

 

Have an A/F chart? Zex states hp as crank shots, obviously not whp....

 

Sorry, I didn't export the graph with a/f on it. If I get a chance I'll export the graph again with that included. The first run was very rich, with afr ranging from 10.8 to 11.4:1. I tuned it to 13:1 tapering off to 12.8 from 6k-7k.

I took out the suggested 4 degrees of timing but ended up putting 1 degree back in from 4500 up and 3 degrees back in from 3000 to 4500. One degree per 25shot is sufficient, I believe.

 

Yes! It was easy to set-up with the old software but there's a trick getting it to work with the new one. And if i knew, I'd tell ya.

Maybe PM Audible Mayhem?

Good Luck

 

Nice job!!! I always wanted to see someone bone stock run Noz. Keep us posted.