2002AltimateV6

iTrader: (7)

VQ35DE, want to run 75 shot (wet) but to prevent predetonation caused by a really fawkin' h0t platinum tipped plug, I'm going to need to replace the plug. I've searched (yes, I used it finally) and I wasn't able to come to a conclusion. Searching on the NGK website, they lead me to LFR5AIX-11, which I have come to believe is the stock heat-range (but in Iridium) spark plug for the VQ? Wouldn't that mean LFR6AIX-11 are one-step colder plugs for the VQ? Please help so I can get this shiet ordered and done with!

My bottle is mounted in the back, and it looks to be little too no room available for a pressure gauge to be mounted. I could mount it by lifting the bottle up higher, but just checking the pressure from the back will be so much of a hassle. What I was thinking about doing was instead of mounting it at the bottle, why not rather install it right at the NMU unit before the nitrous feed? Would mounting the pressure gauge further away from the bottle cause the gauge to read at a lower pressure then where the actual pressure is at the bottle? Will the cool air running over the nitrous line also cause a drop in pressure compared to what is being read at the bottle? I don't want to run the bottle too hot since I'll be running a temperature controlled bottle warmer instead of a pressure controlled.

Thanks,
GENE