AI NOZZLE/JET/ Delivery Sizing
#54
Senior Member
iTrader: (1)
They come in different sizes. Check out my post #51 above. If you are using a 150 psi pump, you can get up to 2 liter/min (look at the 10 bar column).
As for your other question, you may want to check this excellent thread started by Howard
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/feeding-turbo-rotary-horsepower-airflow-fuels-881992/
- Sandro
As for your other question, you may want to check this excellent thread started by Howard
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/feeding-turbo-rotary-horsepower-airflow-fuels-881992/
- Sandro
#55
Lives on the Forum
iTrader: (6)
Sorry for the naive post here, but I need help in selecting the correct jet size for my Aquamist meth setup. I have a 20B running a T78BB turbo and an HFS-3 Aquamist methanol injection kit specifically designed for the 3 rotor (it has a larger pump). I plan on running a 50/50 meth mix and the car currently makes 525 at 12 PSI and 650 whp at 18 PSI. I also plan on using this for safety only as I am quite happy with my current WHP levels but want to be a safe and cool as possible.
Given the above, what do you guys recommend for the size of the jet nozzle? Or do you recommend two nozzles and if so, which ones. Here is a link to the jets available thru Aquamist:
http://www.aquamist.co.uk/sl/plist/frm-5.html
So, my thought is that larger would be better but I need some expert help here. Thanks so much.
Given the above, what do you guys recommend for the size of the jet nozzle? Or do you recommend two nozzles and if so, which ones. Here is a link to the jets available thru Aquamist:
http://www.aquamist.co.uk/sl/plist/frm-5.html
So, my thought is that larger would be better but I need some expert help here. Thanks so much.
#58
Racing Rotary Since 1983
Thread Starter
iTrader: (6)
using 650 rotary rwhp as your max.....
650 X 1.92 = 1248 CFM of air.
1248/ 14.471 = 86.24 pounds of air per minute
using a 10.75 AFR... 86.24/ 10.75 = 8.02 pounds per min of gasoline
8.02/ 6.35 (pounds per gal) = 1.26 gal per minute of gas
1.26 GPM = 4769 CC/Min
(BTW... adj for 85% max duty cycle you want 4769 X 1.176 or 5610 min total gross injector cap)
getting back ontrack...
given your setup and objectives:
you really should not run meth. you should just run water. water has almost 3 times the cooling (which is what you are after) than meth. so you can run smaller delivery and accomplish the two things you need.... cooling and cleaning.
i am not totally dialed on pure water as i run no water, just meth... (of course i have different goals/equip than you)...
my guess is you need about 15% water (distilled only). that would be in the area of
4769 X .15 or 715 CC/Min.
i suggest you post on the AQ forum your 4769 CC/Min number and ask their advice as well as for the suggested nozzle/restrictor numbers.
good luck. you will love the system and so will the motor.
howard
650 X 1.92 = 1248 CFM of air.
1248/ 14.471 = 86.24 pounds of air per minute
using a 10.75 AFR... 86.24/ 10.75 = 8.02 pounds per min of gasoline
8.02/ 6.35 (pounds per gal) = 1.26 gal per minute of gas
1.26 GPM = 4769 CC/Min
(BTW... adj for 85% max duty cycle you want 4769 X 1.176 or 5610 min total gross injector cap)
getting back ontrack...
given your setup and objectives:
you really should not run meth. you should just run water. water has almost 3 times the cooling (which is what you are after) than meth. so you can run smaller delivery and accomplish the two things you need.... cooling and cleaning.
i am not totally dialed on pure water as i run no water, just meth... (of course i have different goals/equip than you)...
my guess is you need about 15% water (distilled only). that would be in the area of
4769 X .15 or 715 CC/Min.
i suggest you post on the AQ forum your 4769 CC/Min number and ask their advice as well as for the suggested nozzle/restrictor numbers.
good luck. you will love the system and so will the motor.
howard
#59
Lives on the Forum
iTrader: (6)
using 650 rotary rwhp as your max.....
650 X 1.92 = 1248 CFM of air.
1248/ 14.471 = 86.24 pounds of air per minute
using a 10.75 AFR... 86.24/ 10.75 = 8.02 pounds per min of gasoline
8.02/ 6.35 (pounds per gal) = 1.26 gal per minute of gas
1.26 GPM = 4769 CC/Min
(BTW... adj for 85% max duty cycle you want 4769 X 1.176 or 5610 min total gross injector cap)
getting back ontrack...
given your setup and objectives:
you really should not run meth. you should just run water. water has almost 3 times the cooling (which is what you are after) than meth. so you can run smaller delivery and accomplish the two things you need.... cooling and cleaning.
i am not totally dialed on pure water as i run no water, just meth... (of course i have different goals/equip than you)...
my guess is you need about 15% water (distilled only). that would be in the area of
4769 X .15 or 715 CC/Min.
i suggest you post on the AQ forum your 4769 CC/Min number and ask their advice as well as for the suggested nozzle/restrictor numbers.
good luck. you will love the system and so will the motor.
howard
650 X 1.92 = 1248 CFM of air.
1248/ 14.471 = 86.24 pounds of air per minute
using a 10.75 AFR... 86.24/ 10.75 = 8.02 pounds per min of gasoline
8.02/ 6.35 (pounds per gal) = 1.26 gal per minute of gas
1.26 GPM = 4769 CC/Min
(BTW... adj for 85% max duty cycle you want 4769 X 1.176 or 5610 min total gross injector cap)
getting back ontrack...
given your setup and objectives:
you really should not run meth. you should just run water. water has almost 3 times the cooling (which is what you are after) than meth. so you can run smaller delivery and accomplish the two things you need.... cooling and cleaning.
i am not totally dialed on pure water as i run no water, just meth... (of course i have different goals/equip than you)...
my guess is you need about 15% water (distilled only). that would be in the area of
4769 X .15 or 715 CC/Min.
i suggest you post on the AQ forum your 4769 CC/Min number and ask their advice as well as for the suggested nozzle/restrictor numbers.
good luck. you will love the system and so will the motor.
howard
I'll definitely consider water for my needs and from your calculations, I think the two recommended 1.0 4 mm nozzles will do the job. We'll see what Richard says. Want to have this on the car by DGRR hence the urgency with the question.
As an aside, I just got back from PLX my AIT sensor unit so I can measure the differences in AIT pre and post installation.
#62
Irregular Here
iTrader: (14)
I have ADD and I suck at math.
FD:
Half Bridgeport
Aeromotive stealth pump 40 PSI Base
850 / 1650 Injectors
PFC
S366 Turbo. Do not plan to exceed 20PSI
AI:
Want to run progressive with Boost Juice
Nozzle size?
Plumb it in my intake elbow?
What psi to start spraying and what psi full duty?
FD:
Half Bridgeport
Aeromotive stealth pump 40 PSI Base
850 / 1650 Injectors
PFC
S366 Turbo. Do not plan to exceed 20PSI
AI:
Want to run progressive with Boost Juice
Nozzle size?
Plumb it in my intake elbow?
What psi to start spraying and what psi full duty?
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