Nitrous on a stock bottom end?

I ran a NX wet kit with a 150hp shot for about 5 months. Many a bottle went through the engine. Three backfires on that one kit. Then I sold it and put on a ZEX dry kit. 125hp shot and one back fire and about 1 bottle has gone through it. No problems. Stock fuel pump, stock timing both times, and two steps colder plugs and thats it.

Good Luck

running a 125 shot

all i got is a pressure pegulator and a chip

I put a NX 150 wet shot my '89 Coupe when I first bought it (with over 100k miles) and sprayed it everywhere I went for about a year. Had a 190 LPH pump, 24# injectors, GT40P heads, Cobra intake, an adjustable fuel pressure regulator and that was about it. With slicks and 4.10s the car went consistent 12.50s through the stock AOD at 6000 ft. I wouldn't say it would be beyond reason to think the car would've run 11.9s at sea level. Never had a problem with the car until it finally blew a head gasket at about 135k miles (pretty sure they were defective heads). The short block is still running around town in a buddies car that runs consistent 12.2s on a 150 shot. I would say it has about 160k miles on it now. Just back the timing off and make sure to get a good tune.

As long as you have the fuel to handle it.. ITs total hp you need to look at. It dont sound like your really gonna run a lotta nitrous but with plenty of fuel and a good wetshot kit then 250 shot should be okay. Its total hp... anything over 550hp and your getting closer to maxing it out.