here are the two threads i made recently trying to figure out this problem if you want to read more about it. but the short version is below


http://forums.corvetteforum.com/c5-f...n-nitrous.html

http://forums.corvetteforum.com/c5-f...-spraying.html

car is an 02z, i was trying to spray a 100 shot through a hsw 78mm wet plate.

after the install, i tested it and it was breaking up.
changed jets, fattened it up, still breaking up and going lean

installed a 2nd wideband so i could monitor both banks.
discovered it was only the left side going lean

fuel pressue showed a drop while spraying
new racetronix pump with hotwire
still showing lean

swapped coils to opposite side of motor, tested again doing the same thing. then the same with the injectors, then plugs and wires.
tested after each one and still breaking up.

finally installed a spare single fogger i had laying around and no breaking up.

took the plate out, and looked for clogs in the inlets.

then i hooked up a tube to the inlet and blew into it to see if all the ports were flowing. thats when i discovered that while blowing into the nitrous side, air was coming out the fuel side?

http://www.youtube.com/watch?v=UnEN9xZzgAU

are you kidding me? what kind of garbage product is this.
1050psi vs 58psi, nitrous was pushing back into my fuel rail. i'm so lucky i didnt hurt my motor.

i loved the idea of the 360 spray pattern but now im deciding on NOS or n2o outlet.

if anyone sees this and is considering an hsw plate, please do a test like what is in the video before you risk your car on a gimmick plate

 

Not a nos guy, but I see what you're saying from watching your vid.

Bad design for sure.

 

WOW.....That is Scary stuff right there. We use NO plates all the time never seen anything like that. Lucky you caught it.