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Thread: N2O ?'s

  1. #1
    Join Date
    Feb 2004
    Location
    Western, KY
    Posts
    433

    Talking

    Hey Guys,
    Was wondering how much spray i could put on a stock motor ive got a 2 stage wet kit for my truck and was wonder if you all could tell me some safe levels to spray at?

    Thanks,

    Cody


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  2. #2
    Join Date
    Dec 2003
    Posts
    246
    150 if you have really good gas , colder plugs and a good tune you could run a 200 shot
    old set up: 2002 chevy 5.3, procharger 12lbs boost, asm headers, ls1 edit, flames, 20inch budniks

    New Set up: 2004 chevy 5.3 ext cab, 12 inch twisted suspension lift, 36's, exhaust.
    future mods: 150-200 shot, ls1 edit, air intake, stall, 5.13 gears, 12s or bust

  3. #3
    Join Date
    Nov 2003
    Posts
    57
    I hope he's got forged pistons at least. That much spray and you are begging to blow your engine. I'd say a 100 shot MAX with some colder plugs and a good tune. Maybe if he was going direct port, he could do the bigger shots, but even then he's living on borrowed time. Just make sure you don't spray below 3000 RPM and you should be fine. Much below that and you run the risk of fuel puddling in the intake and blowing stuff up.
    2000 GMC 4.3L 2wd Auto Reg Stepside

    Performance: Volant Cold Air, Flowmaster Duals, Powerraid Throttle Body Spacer, Derale 18" Electric Fan, 180* T-stat, Underdrive pulley coming soon

    Exterior: 3" Body Lift, 31" tires

    Interior: Full painted interior (and I mean EVERYTHING except the cloth)

  4. #4
    Join Date
    Dec 2003
    Posts
    246
    nope bone stock motor. I ran awet shot with one fogger stabbed into intake tube. I ran a 200 shot and went through about a bottle then motor went, but i had same tune as 150 shot and stock plugs. which was a big mistake on my part but live and learn. soon as i got the truck back through the 150 back on it and still running good. same motor i have the procharger on.
    old set up: 2002 chevy 5.3, procharger 12lbs boost, asm headers, ls1 edit, flames, 20inch budniks

    New Set up: 2004 chevy 5.3 ext cab, 12 inch twisted suspension lift, 36's, exhaust.
    future mods: 150-200 shot, ls1 edit, air intake, stall, 5.13 gears, 12s or bust

  5. #5
    Join Date
    Nov 2003
    Posts
    57
    Damn. I guess these motors are stronger than I thought. What about on the 4.3l V-6 (or whatever size the friggin thing is. I can never remember)? What do you think would be the biggest shot that thing can take?
    2000 GMC 4.3L 2wd Auto Reg Stepside

    Performance: Volant Cold Air, Flowmaster Duals, Powerraid Throttle Body Spacer, Derale 18" Electric Fan, 180* T-stat, Underdrive pulley coming soon

    Exterior: 3" Body Lift, 31" tires

    Interior: Full painted interior (and I mean EVERYTHING except the cloth)

  6. #6
    Join Date
    Dec 2003
    Posts
    246
    i dont knwo maybe a 100. There is so many varibles with nitrous. just make sure you have good fuel pressue, colder plugs and pull timing. I havent messed with 4.3. My buddie has a 4.3 in a s10 and we have been talking about a 150 shot on it but we havent got around to it yet. See if it holds?????
    old set up: 2002 chevy 5.3, procharger 12lbs boost, asm headers, ls1 edit, flames, 20inch budniks

    New Set up: 2004 chevy 5.3 ext cab, 12 inch twisted suspension lift, 36's, exhaust.
    future mods: 150-200 shot, ls1 edit, air intake, stall, 5.13 gears, 12s or bust

  7. #7
    Join Date
    Apr 2003
    Location
    South MS
    Posts
    129
    With the correct jetting and nozzle placement a stock to lightly modded 5.3 could run a 125 all day long. There have been instances of guys running up to a 200 on the stock fuel pump and survived. The bottom ends on these motors can take the power, it is just the pistons that are the weak link. Just beware of running lean or puddleing fuel in your intake track and you should be ok.
    2000 Silverado, RCSB, 2wd w/ a few mods.
    Best 1/4 ET: 12.09@111.22 (old 5.3L H/C/N2O setup)
    WRE 370 and Kenne Bell 2.8L installed and breaking trannys.


    2001 Tahoe LT 4wd
    Stock, daily driver and tow vehicle.


  8. #8
    Join Date
    Nov 2003
    Posts
    57
    I know a fair bit about nitrous (but I've only played with it one on a mustang). I was thinking maybe a dry 75 sprayed before the MAF. Or a wet 75 after the MAF sprayed above 3000rpm. I was going to go with 1 degree colder plug for the 75. I think anything over a 100 and my buddy is gonna piss his pants. I was also thinking bout doing a window switch to turn on at 3000 and off at 5500.
    2000 GMC 4.3L 2wd Auto Reg Stepside

    Performance: Volant Cold Air, Flowmaster Duals, Powerraid Throttle Body Spacer, Derale 18" Electric Fan, 180* T-stat, Underdrive pulley coming soon

    Exterior: 3" Body Lift, 31" tires

    Interior: Full painted interior (and I mean EVERYTHING except the cloth)

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