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Old 04-29-2004, 04:26 PM   #16
EMPOWERD
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Join Date: Dec 2001
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The ZEX kit will go up to 75HP. The motor's fuel line goes through the ZEX controller so it knows what fuel pressure the motor has at all times. The nitrous gets injected with a single nozzle into the intake tube before the throttle body, but after the AFM. The further away, the better distribution to all cylinders. The kit comes with everything required and should take about 4 hours to install (wiring takes the longest). I recommend getting the ZEX over the more expensive (??) NX kit and using that extra money saved for 5 things:

-bottle warmer (keeps constant 900psi even when near empty)
-bottle pressure guage
-remote bottle opener (real nice upgrade)
-B&M adjustable fuel pressure regulator ($150)
-2 step "colder" spark plugs

Make sure you run a stock EPROM, or have one custom programmed to be slightly retarded (LOL).... timing-wise.

Justin, a full 10lb bottle with a 75HP shot usually last for about 10 quarter mile runs (150 sec). Sounds pathetic, but you only spray maybe 1st, 2nd and half of 3rd gear on the street... do that twice/day and you see what I mean. Upon squeezing the trigger, the tires usually break loose from the sudden power and a careful eye on the tach is required 'cause the lrev-imiter comes up quick! On 300+HP cars, I recommend spraying 2nd gear and up... 1st gear is usually too violent unless you're running drag radials or at the strip. Check and make sure your older M42 has good compression across the board and it's well tuned (ignition system works well). Should be okay to have fun... start with a 50-60 shot first.
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Last edited by EMPOWERD; 04-29-2004 at 04:30 PM.
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