FI or Nos??
FI or Nos?? I'm looking to spend some money on my car. It has 134 thousand miles. I'm pretty sure a supercharger or a turbo would require fully going thru my internals and spending alot of money ontop of the supercharger or turbo. So would a 100 or 150 shot of NOS need alot of motor work to make it hold? Also how much money am I looking at for NOS. Please help
Originally Posted by TA4EVR
I'm looking to spend some money on my car. It has 134 thousand miles. I'm pretty sure a supercharger or a turbo would require fully going thru my internals and spending alot of money ontop of the supercharger or turbo. So would a 100 or 150 shot of NOS need alot of motor work to make it hold? Also how much money am I looking at for NOS. Please help
NOS is a company, N2O is nitrous. A 150 shot on a stock car would be fine, a lot of guys do it. Depends on the miles, and the fuel system. FI is only good to about 6-8 PSI with stock internals. With 134k on the clock, I would go a 100-125 shot depending on the fuel system condition. You can also get cut off switches where if it senses a dangerous fuel condition, it shuts the nitrous off. You'll need colder running plugs as well.
TECH Enthusiast
Joined: Nov 2004
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with the proper setup either is fine. if you use a momentary switch like in F&F then 100% make sure you use a window switch. i'd still use one with a WOT switch of course, but you can get yourself into trouble easier with a momentary and no other safety precautions.
just depends what you want. do you want to push a button when you want to spray or do you want to just spray when you go WOT??
just depends what you want. do you want to push a button when you want to spray or do you want to just spray when you go WOT??
I want to push a button but I have an A4 
so where would I mount the switch? So if I go with N20 how much am I looking at? For the whole setup, kit, install (or should I install myself?) all the safety stuff, guages, everything, how much?? Also do you think my motor with 134 thousand miles on will be ok like that?
so where would I mount the switch? So if I go with N20 how much am I looking at? For the whole setup, kit, install (or should I install myself?) all the safety stuff, guages, everything, how much?? Also do you think my motor with 134 thousand miles on will be ok like that? 
Staging Lane
Joined: Oct 2005
Posts: 91
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From: Orlando/Key Largo FL
i have 153k and spray. As for switches i have an arming switch that then goes to a momentary that finally runs through a WOT switch before actually spraying nitrous. I have an A4 and lots of miles and i don't want to spray through the shifts thats why i have it wired this way. btw just buy a new fuel pump and u can spray up to 150.
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Originally Posted by Vendetta
i was never a fan of the WOT switch. You'd be better off with a switch IMO. But yeah I'm more of a nitrous kind of guy even though my LT1 was blown.
i want whatever is safe and better on a well cared for, old motor. i dont want to upgrade to much and id like to stay under or around 1000 all inclusive if i could. so what am i looking at for that price?
Originally Posted by TA4EVR
$$$$$$$???
i got nos system on my car and just over 100k, works great motor has held up fine with 125 shot. I got about a $1000 in everything wich included nos dry system, bottle heater, msd window switch and autometer guage. And its not that hard to install
