New Plugs / Tuneup

[BuudWeizErr]

I know this has been asked before, but I am adding a twist so that it's not a repost.

I have about 12K on my Denso Iridiums and I think it's time to change them. I have a couple race days and I'd like to do a tune up before I go. Now here is the problem. I can't afford 50 bucks for new spark plugs again as I have been laid off and out of work.

What spark plugs can/should I get? I'm running 0.5BAR, FMIC, stock turbo, stock intake and exhaust manifolds, stock ECU, stock injectors. I know to get them from a B13, but if I just waltz into AutoZone can I get spark plugs that will work well?

Next up, o2 sensor. I am still using the o2 sensor that came with my motorset and I am questioning it's working condition. Same question, can I just waltz into AutoZone and get an o2 sensor from an 87 Z31T and have no problems (except for rewiring the plug of course)?

In reality, I just don't have the money for good aftermarket or Nissan OEM parts.

[BuudWeizErr]

Couple more questions:

Given my current setup, what gap specs should i set the plugs to?

Does AutoZone carry Seafoam? Kragen? Napa? Pep Boys?

[Phax]

WRT o2 sensor - The turbo Nissan plug wires right up where your old o2 sensor used to.

Plugs - There's a post of mine about a page down "Spark scatters at high RPM" or something like that. Tai Mai Shu suggested some copper NGK plugs that go for $7.00 a set, gapped at 0.28. I haven't had a chance to check out the plugs myself, as the car seems to be running fine for right now.

[BuudWeizErr]

what is a WRT o2 sensor?

And where can I get those NGK's ?

[Phax]

http://www.nissaninfiniticlub....7131.

With Regards To (WRT)

My o2 sensor was jacked up too. It turns out that my engine had been running open loop.

Edit: You could also use the universal Bosch o2 sensor.

[DAEDALUS]

I've only found Seafoam at Napa in my area. At every other place I either get blank looks and/or directions to the nearest marine supply store (which might carry it...who knows?).

[RobDET]

Don't cut the plug on the O2 sensors... take a few minutes and remove the pins... it's WAY more sanitary.

On plugs... I use NGK 'R' plugs from a 300ZXTT with no problems...