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I recommend getting NX (Nitrous Express) GM EFI wet kit, with single nozzle. With 100 shot, you should put around 90-100 hp to the wheels with this kit. Your stock 90 L98 should put around 210 to the wheels, with this kit you will be putting out more than most LS-1s to the ground.
Don't get the plate kit from NOS, it is a POS (IMHO)! WHen I had the NOS 100 plate kit with the bottle pressure at 1400PSI, only made 83 hp to the wheels.
The NX is the best kit out there and it is very very dependable and reliable. Be sure to get the automatic bottle heater with this kit, you want around 1000psi when you run the juice, or else it won't run right.
I has a NOS "wet" plate (it was intended for an L98) setup on my LT1, and I think it works great! I am running a 150 hp shot, and went from 12.24@114 in the 1/4 mile to 11.04@126 in the 1/4 with it! I made an extra 124 rear wheel horsepower when jetted to 150 hp. Add 15% (for flywheel hp) and that make 142 hp gain. I would say that comes pretty close to the advertised hp gain NOS states. I could get more from jetting a little bit leaner, since I have been running overly rich, to make up the 8 hp lost, but I have not been to the track for a while. When I return, you can bet I will have it worked out.
Tony
How about the fuel pressure? Do i need a a own fuel line and pump. I learned from a friend that it would help to keep the fuel flow more constant and provide better cooling for the pistons :eek:
Is there any truth in these advise ???
:jester