nitrous help
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On The Tree
Joined: Dec 2012
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From: atco
nitrous help I brought a used nitrous kit made by Harris speed works. The person before me put dual nozzles and i dont know how to jet it. it is a wet kit and he put a Y fitting at the solenoids. the calculators all only do single nozzle. i was told you divide the jets in half you would use for single so i calculated a 75 shot and for the dual nozzle set up i have i put a 12 fuel and 20 nitrous is this right and do you just cut the jetting in half.
TECH Regular
Joined: Apr 2011
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From: Deep in the heart of Texas
In a short answer yes. Two .020 nitrous jets fed by the same bottle equal the same amount of N20 forced into the motor, as one .040 jet fed by the same bottle. Two .020 would produce closer to 60rwhp.
Last edited by 93 LT1 Vette; Dec 12, 2012 at 05:49 PM.
Launching!
Joined: Nov 2012
Posts: 253
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From: Midwest City, Ok
I was under the impression that through a round orifice, the ratio of flow is determined by the square of the diameter ratio.
Thus a .40 would not flow 2x what a .20 would, it would in fact flow 4x as much.
This is derived from an elementary understanding of geometry. When the radius of a round object is changed its area is changed by that factor squared.
A=π*r^2
Thus a .40 would not flow 2x what a .20 would, it would in fact flow 4x as much.
This is derived from an elementary understanding of geometry. When the radius of a round object is changed its area is changed by that factor squared.
A=π*r^2
TECH Regular
Joined: Apr 2011
Posts: 441
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From: Deep in the heart of Texas
Call Nitro Daves they will hook you up. I would start fat and lean it out. Each setup is different. 125hp shot with a good AFR equaled a .057N and .035F for me which was way fat by the charts. As far as V=2xdia3 or whatever, I have no idea 2x.020= 1x.040 as far as I could find on the Bullet and other N20 forums. Personally I would shitcan the Y's and run one, less stuff to leak. Not much to be gained as far as distribution in a 4 inch tube only inches from the TB.
Last edited by 93 LT1 Vette; Dec 12, 2012 at 06:33 PM.
I was under the impression that through a round orifice, the ratio of flow is determined by the square of the diameter ratio.
Thus a .40 would not flow 2x what a .20 would, it would in fact flow 4x as much.
This is derived from an elementary understanding of geometry. When the radius of a round object is changed its area is changed by that factor squared.
A=π*r^2
Thus a .40 would not flow 2x what a .20 would, it would in fact flow 4x as much.
This is derived from an elementary understanding of geometry. When the radius of a round object is changed its area is changed by that factor squared.
A=π*r^2
93 LT1 Vette, I agree with you that it makes no sense to run dual nozzles in his case. Always go by the "KISS" principle
Launching!
Joined: Nov 2012
Posts: 253
Likes: 0
From: Midwest City, Ok
thanks for the confirmation!!A little mistake on nitrous jetting for OP could end up causing a big dent in a bank account!!
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