How important is a blow-down tube?

I am looking at getting a basic NX dry kit.
Adding either the MSD or Mallory Window Switch. Remote bottle opener. NOS pressure gauge. Filter and stainless steel hose. Purge Valve w/push button & vent tube. Fuel Pressure Safety Switch


Anything else I should get safetywise? Or is this overkill?

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Black 1999 LS1 Convertible A4, 3.23
Whisper Lid, Borla Cat-Back, HPP3, Powerstat 160
Vigilante 2800, B&M 24K Tranny Cooler
BMR STB, SFC's, APHR, ALCA's, & Relocation Brackets
Eibach Pro-Kit, Bilsteins Shocks
Chrome SS Wheels, Kumho 275/40/17, Nitto DR's
SS Hood & Spoiler, SLP Grille, Converted Zaino User!
!Auto-Headlights, High Beam Mod, Clear Lenses
Passenger-Side Stealth Box
273.4 RWHP - Stock
289.4 RWHP - Mods
07.27.02
298.7 RWHP - 373.4 @ Crank (With Torque Converter & 160)
312.0 RWTQ - 390 @ Crank

 

Anyone?

 

I would recomend getting a bottle heater also. It helps keep pressure up so you don't go lean. A blowdown tube is a pretty important safety device. If your pressure goes too high in the bottle, the blowdown tube will direct the nitrous out of the car so you don't inhale it.

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Blue 1994 Z28
Moroso CAI, March underdrive pulleys, Jet throttle blade, Comp Cams 1.6 rr, Accel 300+ ignition, HPPIII, Accel adjustable fuel pressure regulator/gauge, Nitrous Works wet kit (175hp), FLP race-prepped 4L60E, Coan 2800 rpm convertor, LS1 driveshaft, 4.10 gears, cat removed, Flowmaster American Thunder. Moser 12 bolt soon.

 

Other than the fact NX doesnt have dry kits,what you said looks good.
Blow Down tubes are MANDATORY according to the NHRA for our cars......no seperate trunk.
Bottle heater is very important for consistency.

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Dirk
1997 TA A4
11.251@119.3 1.52 60',7.132@95.39 1/8
The RacinLT1
RacinLT1 pic's

 

Oh, I thought it was a dry kit. Then a warmer is necessary. Do you need one on a dry kit?

I assume that the blow-down tube need to vent outside.

Doesn't NX make a dry kit at all?

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Black 1999 LS1 Convertible A4, 3.23
Whisper Lid, Borla Cat-Back, HPP3, Powerstat 160
Vigilante 2800, B&M 24K Tranny Cooler
BMR STB, SFC's, APHR, ALCA's, & Relocation Brackets
Eibach Pro-Kit, Bilsteins Shocks
Chrome SS Wheels, Kumho 275/40/17, Nitto DR's
SS Hood & Spoiler, SLP Grille, Converted Zaino User!
!Auto-Headlights, High Beam Mod, Clear Lenses
Passenger-Side Stealth Box
273.4 RWHP - Stock
289.4 RWHP - Mods
07.27.02
298.7 RWHP - 373.4 @ Crank (With Torque Converter & 160)
312.0 RWTQ - 390 @ Crank

[This message has been edited by Ed (edited August 13, 2002).]

 

http://www.go-fast.org/z28/new_to_nitrous.html
Read this

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Michigan Skip's Flamed 95
95Z28, K&N TPIS 150hp NOS & 27mpg!
MSD 6AL, Window switch,Ford SVO 24# injectors,
2.73's (3.42's to come) Edelbrock headers, Flowmaster exhaust
BMR SFC,LCA,STB