Alrighty then. I just ordered the Zex wet kit 75-125 shot. I plan on running the 75 shot untuned for the time being. I will then step up to the 125 when I get the car on the dyno. Questions are, do I need to run a colder plug, or will stock heat range do. Also I have a predator on the car. Slightly leaned and maxed timing. Will this remain ok? should i go to stock predator settings? Or pull timing even more? HELP PLEASE.
Spark plugs for Zex kit?
- Thread starter Smokeurhonda
- Start date
steveb24
New Member
use the stock settings untill the dyno tune. zex sells their own plugs, which are a step colder, or you could buy some ngk tr6's for $1.77 a piece at napa.
the98stang
Active Member
Factory tune OR back the timing down to about -10% and the fuel a couple percent richer. You could leave the fuel alone as most "street" nitrous systems err on the side of caution and run fairly rich. I have the Predator as well and i only adjust the timing,not the fuel,with the predator tune.
the98stang
Active Member
General rule of thumb is to pull 2 degrees of timing for every 50 shot. I would pull at least 2 degrees for a 75 shot. Don't spray 75 until you get it on the dyno! Or your just asking for trouble...
Pughman
Member
1 Step colder NGK TR 6 plugs And gap at .035 is what i run on my 75 zex shot, ran 1 bottle now with no problems... stock tune.
....or some Motorcraft AGSF 22C's (1 step colder) or AGSF 12C's (2 steps colder)
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