Spraying off the line

[teal99camaro]

I've always wondered. How do you spray off the line without killing the car?

[auto666]

Re: Spraying off the line

just a guess high stall converter

[Shodown]

Re: Spraying off the line

I've always wondered. How do you spray off the line without killing the car?

What do you mean "killing the car" ???

[BobDoLe]

Re: Spraying off the line

What do you mean "killing the car" ???

this guy is killing the car off the line. apparently it is so common that the spectators in the picture seem at ease.

[Shodown]

Re: Spraying off the line

:eek: :eek: :eek:

[UDLOSE98]

Re: Spraying off the line

I am gonna take a wild stab at this one and say that possibly the reason that happens is becuase off the line there isnt a great deal of inlet air as opposed to a rolling WOT. If there isnt much air, there isnt much combustion......so if Nitrous is allowed to build up and not burn off then possibly BOOM! am I crazy or can anyone confirm something that I just made up off the top of my head?

[WishIHad$$$]

Re: Spraying off the line

Use a window switch, and have the nitrous engage at WOT and above 3500+ rpm. Plenty of people spray off the line and are just fine. Especially stalled automatics.

[Shodown]

Re: Spraying off the line

Use a window switch, and have the nitrous engage at WOT and above 3500+ rpm. Plenty of people spray off the line and are just fine. Especially stalled automatics.

Couldnt have said it better myself. :tup:

I didnt know what you were asking by "killing the car". You dont engage the nirtrous until your foot is all the way to the floor.

[BobDoLe]

Re: Spraying off the line

I've read that cylinder pressure can get out of hand when spraying at low RPM. Consider that at 2,000 RPM you have three times the amount of nitrous crammed into your poor little cylinders than at 6,000 RPM - given a constant flow of nitrous. No big deal, right? We like that low end torque that pushes you back into the seat...

If your engine tells you its ok to go on spraying a 100 shot at 2,500 RPM, it won't mind you spraying a 200 shot at 5,000 RPM (provided that you can get enough fuel in there). Progressive controllers are good for this and traction reasons. If I even get the LSx car I asked Santa for, I'll chisel my teeth out for a direct port nitrous setup and progressive controller from the tooth fairy.:drool:

[Shodown]

Re: Spraying off the line

Yeah, progressive controllers are awesome. They allow you to spray bigger shots without as much harm to the motor since it gradually releases the nitrous over a period of time or RPM, this is known as 'ramping'.

I still wouldnt spray below 3000 RPM though. I have my window switch (set at 3000-6000) and WOT switch that will be wired into my progressive controller I got from Dyno Tune. I'll intsall it next weekend :naughty:

[00 Silver 6]

Re: Spraying off the line

this guy is killing the car off the line. apparently it is so common that the spectators in the picture seem at ease.

theyre at ease because that explosion takes a fraction of a second to burn, peoples reaction times are just not fast enough to react instantaneously

[BobDoLe]

Re: Spraying off the line

theyre at ease because that explosion takes a fraction of a second to burn, peoples reaction times are just not fast enough to react instantaneously

ya don't say... :slap:

[OutKlast]

Re: Spraying off the line

I am gonna take a wild stab at this one and say that possibly the reason that happens is becuase off the line there isnt a great deal of inlet air as opposed to a rolling WOT. If there isnt much air, there isnt much combustion......so if Nitrous is allowed to build up and not burn off then possibly BOOM! am I crazy or can anyone confirm something that I just made up off the top of my head?

nt rly. Nitrous is pretty much used just for the oxygen content so you've got plenty of air. Nitrous isn't even flammable but it aids greatly in the combustion of any other flammable medium (ie: gasoline).

[Shodown]

Re: Spraying off the line

UDLOSE98 is right to a point, its not the nitrous that builds up its the added fuel of a wet system that puddles and causes problems at low RPM. Ask me how I know...:o

To the original poster, many people dont like to spray off the line due to traction issues or stress on the rearend. Thus many people use a 1st gear lock-out so it wont spray until second gear, after they have successfully launched the car or they use a progressive controller. Spraying off the line usually isnt as much of an issue for the motor as it is the drive train. This isnt too much of a problem for v6 guys as it is for v8 guys cuz they are putting way more power to the ground than our v6's are.

[teal99camaro]

Re: Spraying off the line

ive got a window switch at 2900to6100 and a wot switch. I still only run 14.3 with a 75 dry shot though. I figured it was cuz i wasnt spraying off the line. Car runs consistant 15.3 no nitrous