I am going to buy a complete NX kit. It comes with plugs, purge, window switch, and all the other goodies. I was thinking about using 100-125 shot. Motor is mostly stock except for bolt-ons in sig and crane 1.6 gold roller rockers. Can I run this amount? Big question is when do I engage it (what gear and what rpm). thanks

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1993 formula firebird- Hooker Longtube headers w/custom y-pipe and hi-flow cat,flowmaster catback, Lingenfelter cold air induction, march under-drive pulleys, low temp thermostat, jet stage II chip, and other mods I cant remember.

 

You can engage it in any and all gears. As long as you're over 3000rpm and at WOT.
Your engine should have no problem with 100-125 hp shots.

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Mario,
White 94 Z28
Yeah I got a few mods
Video
Black 87 IROC-Z

 

Ild say stay at a 100 shot unless you upgrade your fuel pump. Yes you could most likely get away with a 125 on the stock pump but IMO thats liven on the edge and you dont want to be there running nitrous.

If you have an M6 caryour just going to burn tires off sprayn in 1st and 2nd on street tires....but that can be fun at times

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Greg
95 Z28 conv M6
Georgia F-Body Association

Stage 1 heads, 1.6rr, Meziere WP
lt4 hot cam,lt4 timing chain kit,52mm TB,
Hooker Headers, Pro 5 shifter,3.73s,
NX 150 progressive,
Self-tuned via Tunercat

 

Greg is right, if you plan on spraying over 100 hp. A fuel pump upgrade is almost mandatory.
Actually I would recommend it for even a 100 shot. Better safe than sorry. Ask me how I know.

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Mario,
White 94 Z28
Yeah I got a few mods
Video
Black 87 IROC-Z

 

The kit comes with an in line fuel pump. What would be the best gear to spray if I have and automatic?

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1993 formula firebird- Hooker Longtube headers w/custom y-pipe and hi-flow cat,flowmaster catback, Lingenfelter cold air induction, march under-drive pulleys, low temp thermostat, jet stage II chip, and other mods I cant remember.

 

Get yourself some Nittos and spray in first gear! You'll probably have to do a few suspension mods to be able to cut a decent 60'. But hey, that's what it's all about. Nothing comes easy.