Alcohol Nozzle size Calculator

Rocket468 · 12-13-2006

I would try it out first, This caculator is only a guestamate.

Joe Perez · 12-19-2006

This may be a stupid question, but is the calculator based upon the assumption of a particular mixture? I'd imagine, for example, that different flow rates would be appropriate depending upon whether the user is injecting 100% water, 20% methanol, 50% methanol, etc. Whether this difference is signifigant (or well understood) may be another matter.

drmatera · 12-21-2006

vr6t, as long as it's not bogging i would stick to the larger nozzle since you have no cooler.

rudebwoy · 02-15-2007

95 civic LS/vtec turbocharged
9600rpm
25psi of boost precision sc61(680hp)
1.8l 500whp
7.64GPH nozzle required

tgentry · 02-19-2007

The calculator seems a little oversimplified to me. According to the calculator my 32 valve SVT Cobra would need the same flow as a 16 valve Mustang GT. Obvioulsy the Cobra flows more air, needs more fuel and should need a larger nozzle as well.

Just wondering.

Erik Schirmer · 03-14-2007

GMC 6.6 Diesel I use 4 nozzles total 16 GPH water only. cools EGT's 200+ deg.

Rocket468 · 03-16-2007

You should drive the car and see how it acts. there is no replacement for real world trial and error. This caculator is just a best guess.

bruce-m · 03-16-2007

Nissan Skyline GTS-T

max rpm 7300
2500cc
boost 20psi
= 6.33gph

MikeB · 03-21-2007

Alright I think the calc is a bit off, and it doesnt state what the gph flow is for. It said I needed a 8.4gph nozzle but right now Im running a little over 10gph and in the next few days here moving to a 15gph nozzle injected right before the throttle body.

In the tune I do pull quite a bit of fuel out and my AFRs are right around 12.0:1 timing is around 9 degrees at peak tq and ramps to 27 degrees at the rev limit, with about 1-2 knock counts which is acceptable to the ECU. The meth starts injecting around 16psi and is at full flow at 24psi.

Im wondering if I lower the "on" time to generate more lower end tq but will go through my 1.5gallons in no time.

bruce-m · 03-22-2007

i think the calc is always gonna be a bit off because there's so many things to take into account, thing is i only run a 3gph injector on my skyline even tho it says 6.33gph, but thats because i have a massive front mount intercooler and dont run the turbo anywhere near its limits so heat isnt much of an issue!

ignition is 18degrees and ramps up to 45 degrees.

plus over in the crappy uk its always cold and raining.

12-13-2006	#11 (permalink)
Rocket468 DevilsOwn Staff Year: 2000 Make: Pontiac Model: Grand Prix Join Date: Apr 2005 Posts: 1,124	Re: Alcohol Nozzle size Calculator I would try it out first, This caculator is only a guestamate.

12-19-2006	#12 (permalink)
Joe Perez Water Injection Newb Year: 1992 Make: Mazda Model: Miata Join Date: Nov 2006 Posts: 13	Re: Alcohol Nozzle size Calculator This may be a stupid question, but is the calculator based upon the assumption of a particular mixture? I'd imagine, for example, that different flow rates would be appropriate depending upon whether the user is injecting 100% water, 20% methanol, 50% methanol, etc. Whether this difference is signifigant (or well understood) may be another matter.

12-21-2006	#13 (permalink)
drmatera Water Injection Newb Year: 1991 Make: Ford Model: Mustang 5.0 Turbo Join Date: Sep 2006 Posts: 13	Re: Alcohol Nozzle size Calculator vr6t, as long as it's not bogging i would stick to the larger nozzle since you have no cooler. __________________ 1991 mustang coupe - T70 turbo - DIY meth 10.45 @ 134mph , 22psi boost , pump gas Megasquirt1

02-15-2007	#14 (permalink)
rudebwoy Water Injection Newb Year: 1995 Make: honda Model: civic 1.8l LS/vtec turbocharged Join Date: Feb 2007 Posts: 12	Re: Alcohol Nozzle size Calculator 95 civic LS/vtec turbocharged 9600rpm 25psi of boost precision sc61(680hp) 1.8l 500whp 7.64GPH nozzle required

02-19-2007	#15 (permalink)
tgentry Water Injection Newb Join Date: Nov 2005 Posts: 1	Re: Alcohol Nozzle size Calculator The calculator seems a little oversimplified to me. According to the calculator my 32 valve SVT Cobra would need the same flow as a 16 valve Mustang GT. Obvioulsy the Cobra flows more air, needs more fuel and should need a larger nozzle as well. Just wondering.

03-14-2007	#16 (permalink)
Erik Schirmer Water Injection Newb Year: 2006 Make: GMC Model: Sierra 3500 Join Date: Sep 2006 Posts: 2	Re: Alcohol Nozzle size Calculator GMC 6.6 Diesel I use 4 nozzles total 16 GPH water only. cools EGT's 200+ deg.

03-16-2007	#17 (permalink)
Rocket468 DevilsOwn Staff Year: 2000 Make: Pontiac Model: Grand Prix Join Date: Apr 2005 Posts: 1,124	Re: Alcohol Nozzle size Calculator You should drive the car and see how it acts. there is no replacement for real world trial and error. This caculator is just a best guess.

03-16-2007	#18 (permalink)
bruce-m Approved Dealer Year: 1995 Make: Nissan Model: skyline Join Date: Sep 2006 Posts: 100	Re: Alcohol Nozzle size Calculator Nissan Skyline GTS-T max rpm 7300 2500cc boost 20psi = 6.33gph

03-21-2007	#19 (permalink)
MikeB Water Injection Newb Year: 2003 Make: Mitsu Model: Evo Join Date: Mar 2007 Posts: 1	Re: Alcohol Nozzle size Calculator Alright I think the calc is a bit off, and it doesnt state what the gph flow is for. It said I needed a 8.4gph nozzle but right now Im running a little over 10gph and in the next few days here moving to a 15gph nozzle injected right before the throttle body. In the tune I do pull quite a bit of fuel out and my AFRs are right around 12.0:1 timing is around 9 degrees at peak tq and ramps to 27 degrees at the rev limit, with about 1-2 knock counts which is acceptable to the ECU. The meth starts injecting around 16psi and is at full flow at 24psi. Im wondering if I lower the "on" time to generate more lower end tq but will go through my 1.5gallons in no time.

03-22-2007	#20 (permalink)
bruce-m Approved Dealer Year: 1995 Make: Nissan Model: skyline Join Date: Sep 2006 Posts: 100	Re: Alcohol Nozzle size Calculator i think the calc is always gonna be a bit off because there's so many things to take into account, thing is i only run a 3gph injector on my skyline even tho it says 6.33gph, but thats because i have a massive front mount intercooler and dont run the turbo anywhere near its limits so heat isnt much of an issue! ignition is 18degrees and ramps up to 45 degrees. plus over in the crappy uk its always cold and raining.