Nismo FPR = Shitty???

[jspaeth]

I haven't had any real problems with this FPR yet, but prior to purchasing it, I heard they could be a bit touchy.

So, I just got back from the dragstrip....4 runs in a row, I noticed my PFC was registering a maximum knock of 58-60!!!!

Now, I 've been driving the car about a month since it got tuned, and never once had the knock go above 20.

Finally, after 3 runs like this, I decided maybe it's the fuel pressure. Sure enough, I get out, and with the car idling, it's at like 27-28 psi. However, it was tuned with the pressure around 32 psi at idle or so.

So, I raise it up to 33 or so, do a run, and when I get back, it's at 36 psi...


Anyone else having issues with this FPR randomly deciding to be jumpy?