How much will you lose on a drag truck if you dont run a IC, but run nitrous?

Rollin Coal said:
oh...ok i guess lol
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Here is the formula


Two jets are different sizes (a .050 jet and a .085 jet);
.050 x .050 x .7854 = .0019635 (a single .050 jet area)
.085 x .085 x .7854 = .0056745 (a single .085 jet area)

Add these two areas together to get the total jet area
.0019635 + .0056745 = .007638 (total jet area)

Compute what single diameter jet the total area equals.
.007638 /.7854 = .00972498
.00972498 times square root (or just hit the square root key) = .0986153

So a single .050 jet and a single .085 jet when flowing at the same time are equivalent to a single .099 jet.

Have fun!!!!
 
You know, I have never ran a jet in my system yet.. it is whatever the solenoid puts out.
 
Supposedly you can actually get more flow from a large jet than a wide open solenoid. The design of the jet keeps the nitrous flow path smooth and less restrictive. Although I have never tried myself, I always run no jets as well!
 
The taper on the jet is what makes it seal off against the nozzle, why run w/o one? If one wanted to max out a sol. Id think you would just run a jet equal to or larger than it would flow, Ive not seen reason to use that much myself, a 2 stage system with ~a .55 jet in each will help burn a -bunch- of fuel
 
stock600 said:
The taper on the jet is what makes it seal off against the nozzle, why run w/o one? If one wanted to max out a sol. Id think you would just run a jet equal to or larger than it would flow, Ive not seen reason to use that much myself, a 2 stage system with ~a .55 jet in each will help burn a -bunch- of fuel
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so when would you spray them?

is a progressive controller necessary with 2 small stages?

im only looking for a little bump in spool up and keeping IAT's cool, im not looking to gain 300 horse.
 
Rollin Coal said:
so when would you spray them?

is a progressive controller necessary with 2 small stages?

im only looking for a little bump in spool up and keeping IAT's cool, im not looking to gain 300 horse.
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-Maybe early as 8# then maybe 20# or on a button for your prefrance
-No
-If used in moderation it will help both.
 
Rollin Coal said:
so 8 and 20 and run them both until its time to let off?
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?
Not sure your intent or question. If racing then ya sure. Only want to bring in the spray if there is pleanty of fuel present but not to early by 8# there will be enough available fuel for that size orfice with no prob.. you could bring them in boost ref. with a hobbs switch, manual switch, or wot switch whatever works best for you. If brought in with a wot id wire a hobbs in line to not close until 8-10# so you dont snuff out the fire, if the track conditions are not there you will not always be able to build the same boost at the line against your service brakes [foot brake].
 
morkable said:
You know, I have never ran a jet in my system yet.. it is whatever the solenoid puts out.
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Which is pretty much where i was last year, running a .110 jet, but im pretty sure my soleniod only flows .09x or something like that. I wonder what the difference between fuel solenoids and nitrous solenoids are, you think fuel solenoids would work for a purge?
 
stock600 said:
?
Not sure your intent or question. If racing then ya sure. Only want to bring in the spray if there is pleanty of fuel present but not to early by 8# there will be enough available fuel for that size orfice with no prob.. you could bring them in boost ref. with a hobbs switch, manual switch, or wot switch whatever works best for you. If brought in with a wot id wire a hobbs in line to not close until 8-10# so you dont snuff out the fire, if the track conditions are not there you will not always be able to build the same boost at the line against your service brakes [foot brake].
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let me throw this wrench into the works.

street truck, 5 speed trans. :poke:
 
In your case I would run a smaller solenoid, on a WOT switch.. it will bring the boost back fast that way when you shift, but wont spray while your foot isnt on the throttle

and as an after thought you could run a second stage of a smaller solenoid on a button for when you get into top gear along with your startup solenoid
 
i really got to figure out a controller for this, i hate hobbs switches and throttle switches, especially since there is already a map and tps sensor relaying those exact things lol
 
B18B1LS1 said:
Supposedly you can actually get more flow from a large jet than a wide open solenoid. The design of the jet keeps the nitrous flow path smooth and less restrictive. Although I have never tried myself, I always run no jets as well!
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I've heard similar claims and seen the internet threads to go along with it, but I don't believe it. Nitrous is metered as a liquid, so the smallest orfice in the system should be your restriction, and the design of the jet shouldn't matter.

Rollin Coal said:
is a progressive controller necessary with 2 small stages?
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IMHO, no.

Like I said before, I would run a progressive controller if you were wanting to run a big single stage.

dzchey21 said:
Which is pretty much where i was last year, running a .110 jet, but im pretty sure my soleniod only flows .09x or something like that. I wonder what the difference between fuel solenoids and nitrous solenoids are, you think fuel solenoids would work for a purge?
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I believe the seat material in fuel solenoids is different than nitrous solenoids.

Rollin Coal said:
i really got to figure out a controller for this, i hate hobbs switches and throttle switches, especially since there is already a map and tps sensor relaying those exact things lol
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TPS based controllers have been around for a long time now.
 
I seen a guy run a very small shot of spray just to keep the turbo lit between shifts, worked well for him ran high 13s with just a 62 smarty and mp8 no other mods, i was impressed with it, that was also at 6000 feet of altitude.
 
dzchey21 said:
I seen a guy run a very small shot of spray just to keep the turbo lit between shifts, worked well for him ran high 13s with just a 62 smarty and mp8 no other mods, i was impressed with it, that was also at 6000 feet of altitude.
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13.0's or 13.9's
 
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