I just havea few comments from what I have read here.

1. JWT does not suck and neither do stand alones. Those guys with RNN14 and S13 ECUs are fortunate in that Secret Services is able to reprogram these ECUs with new EPROMS. B13 and B14 (USDM) ECUs do not have this luxury. So far, JWT is the best choice for USDM B13 and B14 turbo cars. I do, however, agree that JWT tunes rich for safety and to not be held responsible. Andreas Miko in Miami has had great success with JWT ECUs and leaning it out a bit with an adjustable fuel pressure regulator. A S-AFC would work very well for this as well.

You say that having your ECU reprogrammed from 2,000 miles away is stupid. Isn't that what NISSDATA was going to do as well?....at least for non-local customers? The main difference between NISSDATA and JWT was that NISSDATA runs more aggressive timing and fuel curves and a leaner A/F ratio across the board. JWT now has an in-house dyno, so their tuning is going to start getting a little more aggressive in terms of A/F ratios.

To recap, I recommend NISSDATA for all S13 and RNN14 ECU owners. For B13s and B14s, go with a JWT ECU and a S-AFC and/or NISMO adjustable fuel pressure regulator.

2. I think Serban was running lean up top because he is still running a stock SR20DE (non-turbo) ECU.

3. The wideband O2 senors supplied with Dynojets are the not the most accurate in the world. They have been known to be off a bit. The most accurate are the 5 wire wideband O2 sensors made by Horiba and Motec.

4. Serban, congrats on the turbo install.

5. Matt knows a whole lot about Nissans...even more than me in some areas He never claimed to be an SR God. That is my job Matt is a VG God.

Good luck,