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Join Date: Dec 2006
Location: lower Delaware
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...some quick responses for you, from my experience.
to be extra safe, install some iridium 6ix NGK plugs.
If you just spray fuel (ie bottle empty or very low) you won't really hurt
anything, it will just run pig rich, while you are spraying.
With a 75 shot, you should get about 8 good "passes" and 4 fading out.
Best way to determine how much NOS is left. Weigh bottle. ...but generally
keep track of the shots you use. You best shots will definately be your first
I spray mine with a hand held button, b/c I don't want it "spraying" through
the shifts. I may spray the whole way, once a tune is had, and tranny
firmness and consistency are addressed.
I thought the Zex system, sorta optimized your nitrous for best consistency
etc, based on bottle pressure and other stuff?
I wouldn't mess with oil viscosity based on nitrous???????? Oil & filter really
don't have much to do with whether you spray it or not. I do recommend
changing oil religiously if you are like me and run the heck out of stuff on a
Rule 1 for me is don't over think the nitrous, it's not that complicated.
Launching.....I don't brake torque my Jeep at the track.
I rest foot on brake and gas.......when I slam accelerator to the floor, I
then push button as soon as the truck lurches forward. I have tried hitting
the juice almost simutaneously as when I floored it, only to have the right
rear tire and front left tire burn.
As for PCM, or flash tunes..............as from my understanding, the truck's
computer somewhat adjusts for the nitrous hit, torque increase, fuel maps etc.....but
I don't recommend having a tune on the ragged edge and spraying it with
more than a 100hp shot, b/c a flashed computers timing may be too high
to be considered safe? make sense?
I also haven't had any issues with the SRT8 Jeep learning too much, or
adjusting too much and altering the computer control too much??????
I have put about 4 bottles total through my Hemi and have had no problems.
I may up the shot to 110-120 soon. The 75 is great, but I think I am real
safe, and the ET potential with another 40-50 seems to be good, if I can
use the power ASAP without tire shredding single wheel peels.
To get the most ET out of any nitrous application, you need to spray the
vehicle at the earliest point on the track. (Example) you could spray it from
half track to the finish only, and only pick up about 2 tenths, 2 mph max,
however all things being equal, if you sprayed for just the 1st half of the track
you would pick up almost double that????????? You make all of your time
I am anxiously waiting for a Predator or another hand held tuner, but I feel
like I will have to break down and get the B&G if I want it sometime before
I know 11s are going to be had with either 30* weather and good traction, or
with a tune and good traction.
Goodluck, and I will try an answer any thoughts you have.
I have a simple 1999 wet Nitrous Works kit on my Jeep, and it is probably
a hair rich with the Jeeps 50psi operating fuel pressure. I would rather be
safe then sorry with this vehicle though.
2007 Red Rock.... slightly modded, but BAD 2 the BONE!