I just ordered my NX kit today (thanks TByrne). Im going with the MSD window switch and a bigger fuel pump. What else do I need? I obviously want to keep my car as safe as possible. Im looking at spraying 100-125.

It only has ~58k on it, so its not all that worn, nor abused.

 

The kit should already have a WOT switch and you already have the next most important item, the window switch. The only other thing you might consider is a fuel pressure safety switch. Not expensive and a potentail engine saver. I use one.

Rich Krause

 

Yeah, thats included in the genx2 kit. Still saving for that one, wanted to order the kit, before the special ended.

 

What window do you guys spray in? I was thinking 3k-5800, or should I go to 6k?

The car is stock aside from a cutout.

 

If you get the gen 2 kit the only thing left would be a fuel pressure gauge and a N2O gauge. I spray between 3000-5600. I don't want to spray through the shifts to save my tranny, but some guess do it. Better safe than sorry for me. If you go to my web page you can see my NX install, I have a Racetronix fuel pump with an install for that as well.

 

Ive been to the site before. But missed the fuel pump how to. That will definatly come in handy. I also plan to do that before I spray.

 

There is also one on the install of the N2O gauge in the center AC vent.

 

Either Im dumb or blind, I dont see it.

 

My bad I haven't linked it yet.

Here you go. Autometer N2O gauge

 

sweet.

 

Anyone else?

 

If you want to run consistant get rid of the fuel safety switch.

What I'm saying is you could keep the switch but rewire it so it will not shut your kit down. After you use one for awhile you will understand what I'm talking about. Wire it to indash light.

I've used a FPSS once! Next thing you know the nitrous kit would not work and then would work. Thing is either the HOBBS switch is to sensitive and adjusting it will not work or the initial fuel psi drop while making a run would trigger it. I found this out after seeing what the fuel psi was doing during a run after downloading the data logger recording after a run. The fuel side of the nitrous kit was dropping psi a touch as the kit was ingaged and going down the run. This little bit of fuel psi loss was not enought to become concerned plus the fuel psi would recover fast but was shutting off the kit due to the Hobbs switch.

One problem I had with a few Hobbs switchs was if I set the switch to break the circuit at say 9 psi it would change after a little use and have the kit shutting down and or not working at all. I want to add that this was not caused by the pump being to small. The pump in use at the time was a Holly 500gph Dominator Series Pump dedicated only for the nitrous kit and #8 lines feeding the fuel solenoids.

This is kinda high end but when you want precise tunning I decided this was the only way to go. This year I'm using individual EGT probes per cylinder mounted into the exhaust primaries at the head and the nitrous will deactivate if the readings get nasty.

Good Luck

 

Ill keep that in mind, thanks.




Anyone else care to chime in as far as the window switch is concerned. I won a 3 and a 6k chip on ebay. Can I use the 6k? My buddy has some 5k series chips for sale, just wondering if I should pick those up instead.

 

Is you car a M6 or A4? The stock shift points for an A4 from1-2 and 2-3 are 5700RPMs. That's why I have mine shut off at 5600 so as not to spray through the shifts. Thats the whole point of a window switch.

 

Im an A4. I wasnt sure of the shift points.

Thanks for the info, Ill spring for the 5k series chips.