Nitrous Oxide - 175 Wet Shot?
02-23-2012, 12:06 AM
Im going to change over to a wet system and was wondering with a good tune timing for safety and good a/f would i be able to run a 175 shot. So far ive been spraying a 125 shot dry and gone through a few bottles to say the least, lol. Car has responded well but thats just about at the limits of what a dry system can do for me for stock fuel injectors and pump. Not sure if its worth going to a wet shot for 25hp more but some say a 125 shot dry is about 90-100 to the wheels and a 150 shot wet could be anywere from 140-160 at the wheels depending on mods so its probably more difference then just 25hp more but id like to go to 175 shot. What do you guys think ?
02-23-2012, 02:03 AM
if you have good oil pressure and dont smoke go for it get it tuned for it i run a 175 on mine and i put down like 530ish too the rear tire and it is fast as heck for a 500 hp car but make sure the tune is right or youll be rebuilding it lol
02-23-2012, 08:29 AM
ya for sure, ill be having him pull timing accordingly and make sure my a/f is 11.5-11.8. Im going to start off at 75 shot and work my way up like i just started using nitrous, it will run rich but it will let me know i have enough fuel as i go up little by little till i get to 175 and at that point if the tune is right i should know wether or not it will be ok to run it.
02-23-2012, 08:48 AM
Are you running a wideband sensor to keep up with your A/F ratio?
02-23-2012, 09:27 AM
Ya for sure, every time i run it i always keep an eye on it just to make sure the a/f is right.
02-23-2012, 09:14 PM
Where do you have it mounted? i was thinking about putting mine in the y-pipe, just don't know if that would be too far away from the motor...
02-23-2012, 09:25 PM
I have it on the ypipe. I didnt know if i should put it right behind the header or just put it on the y since both sides meet up and i might get a more accurate reading. Either way im glad i did when i first put it on thinking i have a good tune and im just doing this to be safe come to find out im running 14-15.0 a/f on 75 shot dry, lol. I sent it out right away and got it re tuned for 125 shot dry and came out good. Im running a bit rich 11.5-11.8 a/f on nitrous but as long as its not low 11's or 10's im ok with that.
02-23-2012, 10:35 PM
Oh, okay, thanks... I need to go ahead and get on it... Spring is right around the corner and i want to be spraying by then....
02-23-2012, 11:11 PM
youll have fun when time comes for sure, it puts a smile on my face everytime i use nitrous. Hopefully i can get the 150 wet shot dialed in and then maybe move on to the 175 shot.
02-25-2012, 09:49 AM
Sorry to hi jack but I have quick question. For those that run spray on daily drivers, do y'all run around with timing retarded all the time? I had a friend that sprayed a 150 shot but never did anything with timing.
02-25-2012, 12:04 PM
Ive pulled timing but the timing on my car is only pulled when the nitrous is on. I have a black box hooked up to the IAT and when i flip the switch on to the nitrous it switches over to nitrous tune. I would not recommend driving around using a 150 shot with no timing pulled. I even pulled timing on a 50 shot, lol. I will be going to 150 wet and my tuner will pull more timing and adjust fuel till i decide its ok to go to 175. If i do 175 i will have to buy the booster for the fuel pump, add's a couple of volts to the fuel pump and then hope the tune is good. Ive delayed it a bit going to a wet system because 125 shot dry hits hard and impressive when you have good bottle pressure. So i know ill for sure be happy with 150 wet shot.
02-25-2012, 11:07 PM
Tell me more about this black box that you speak of or atleast point me in the right direction direction so i can do some more reading on this.
03-13-2012, 01:13 AM
Always pull 2 degrees for every 50 shot of spray and then start adding degrees if the car is liking it and the plugs look good
Nitro Dave's Nitrous Outlet
03-13-2012, 11:27 PM
If switching to a wet system you will still need to upgrade the fuel pump but you will not need to upgrade the injectors.
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