meth nozzle flow?

[RedBowTies88]

Dealing with a stock turbo chevy, 250psi pump, 40psi boost, 540-550 WHP calculated by track times.



injectors range from 50 to 760 cc/m......i'm new to this what flow do you guys recommend? looking to run a 50/50 mix...


thanks.

[RedBowTies88]

Bump......anyone?

[Carbon]

I run a 49/51 meth./water mix in my diesel, that is what snow sells as thier boost juice

[Carbon]

oh sorry I thought you were asking what mix, not what flow, I have no idea what a gasser would use sorry. My only advice would be to start small and work you way up until it starts missing then back off

[RedBowTies88]

It's a durmax haha. I don't know of any other stock turbo chevys that will come close to 500hp lol

[Jim Fulmer]

Snow performances original kit cam with (2) 625ml nozzles and I found that was fine for max HP as long as you are on it hard.......the new kits use 3 nozzles in more of a ramp up based on boost or EGT.

Jim

[RedBowTies88]

Well I'm only really worrie about WOT runs I'm gonna get the 0-25 boost sensor and set it to 25.

Does snow measure in ML per minute?

[Farmallgray]

A ML is the same as a CC if it helps any.

[RedBowTies88]

Thanks it does. Well guess I'm just gonna try to biggest nozzle I can find and wing it

[madmikeismad]

Not a chevy, but I'm running a 625 snow nozzle and a 8xx devils own nozzle. Works great, but you gotta stay heavy in the throttle to keep it from popping.

[RedBowTies88]

10-4

i was hoping i could get away with just one nozzle but it looks like ill need at least 1000ml

[Begle1]

Has anybody ever ran a "625" or "1000" mL nozzle in a bucket for a minute and seen how much they actually flowed?

[Sandaholic]

Has anybody ever ran a "625" or "1000" mL nozzle in a bucket for a minute and seen how much they actually flowed?

Not sure why I didn't, as that is usually the sort of thing I would do, but I tested mine at install just pulled them out and let them go on the ground and it seemed like a ton of fluid! This was 2-882ml nozzles.

Do you have reason to believe they don't flow what they are rated for? I guess it's a simple enough test, I just figure they are gonna be pretty close so why bother.

[RedBowTies88]

how did those 2 880's run on your truck?

[Sandaholic]

how did those 2 880's run on your truck?

Not a chevy, but I'm running a 625 snow nozzle and a 8xx devils own nozzle. Works great, but you gotta stay heavy in the throttle to keep it from popping.

Similar to this. If I have it set to come on too early say 10-15 psi. But at 25psi it works great on the track and the street.

I think I need to put a solenoid on one of the nozzles and use a simple hobbs switch on it. Have the progressive controller come on early with a single nozzle like around 10. Then have the Hobbs switch activate at around 30.

[Begle1]

My custom water injection system has the magical ability to turn my engine oil into milkshake, I've been on a quest for a few years to find out why.

I wish I knew how much water other people were actually injecting. I know I can go up to 2/3 GPM, but I also get milkshake down at a pint a minute so flow rate isn't all there is to it.

[RedBowTies88]

My custom water injection system has the magical ability to turn my engine oil into milkshake, I've been on a quest for a few years to find out why.

I wish I knew how much water other people were actually injecting. I know I can go up to 2/3 GPM, but I also get milkshake down at a pint a minute so flow rate isn't all there is to it.

sounds like you need better atomizarion....

[madmikeismad]

Has anybody ever ran a "625" or "1000" mL nozzle in a bucket for a minute and seen how much they actually flowed?

I can tell you mine goes through 2qts in a matter of seconds LOL

[Begle1]

sounds like you need better atomizarion....

I think it's too good atomization...

http://i159.photobucket.com/albums/t130/Begle1/Truck%20Parts/IMG_1241.jpg

[duallyspeed]

Look at the cone angle. Maybe it is heavy on the sides. How does it compare fan shape wise to a snow? How did you install it? Maybe back it off a taste.

You must have a real long hose, do other cars tend to run it over when you drive?:stab:

[Begle1]

They're cone-shaped impingement nozzles. That's not a garden hose, it's a pressure washer hose at 1000 PSI.

http://i159.photobucket.com/albums/t130/Begle1/Truck%20Parts/IMG_1243.jpg

While its going you can wave your hand 4" from the nozzle and not feel the water impacting your skin, but your hand comes away soaked. I don't think the "atomization" is sub-par in the slightest, but maybe there's some other feature of nozzle design I'm not aware of. I wouldn't imagine that pattern alone is that big of a problem, especially not when nobody says that it's critical to align the fan nozzles perpendicular to air flow (or do they?).

My leading theories are... that injecting into a stock 1" square non-intercooled first gen intake horn causes water to pool all over and form droplets that take forever to disperse... that it's what you get when you inject water into a 400,000 mile engine... that there just aren't that many people running 1000 PSI over the course of minutes...

Maybe one day I'll use some of the off-the-shelf nozzles that everybody else uses, that'll eliminate my nozzles from suspicion or condemn them. I should have my truck up and running within a couple weeks, hopefully I'll have my new datalogger up within a couple month, I'll just keep rehashing my milkshake woes until I have some additional data.


At any rate, of course there's a point where too much nozzle will cause the water injection pumps to drop pressure and you'll get worse atomization. I believe they say that's around with two of their "625" nozzles? I'd hope somebody knows. Regardless, they seem to work beyond that.

I don't know, too many people using the kits as straight bolt-ons, not enough experimentation with them.

[madmikeismad]

They're cone-shaped impingement nozzles. That's not a garden hose, it's a pressure washer hose at 1000 PSI.

http://i159.photobucket.com/albums/t130/Begle1/Truck%20Parts/IMG_1243.jpg

While its going you can wave your hand 4" from the nozzle and not feel the water impacting your skin, but your hand comes away soaked. I don't think the "atomization" is sub-par in the slightest, but maybe there's some other feature of nozzle design I'm not aware of. I wouldn't imagine that pattern alone is that big of a problem, especially not when nobody says that it's critical to align the fan nozzles perpendicular to air flow (or do they?).

My leading theories are... that injecting into a stock 1" square non-intercooled first gen intake horn causes water to pool all over and form droplets that take forever to disperse... that it's what you get when you inject water into a 400,000 mile engine... that there just aren't that many people running 1000 PSI over the course of minutes...

Maybe one day I'll use some of the off-the-shelf nozzles that everybody else uses, that'll eliminate my nozzles from suspicion or condemn them. I should have my truck up and running within a couple weeks, hopefully I'll have my new datalogger up within a couple month, I'll just keep rehashing my milkshake woes until I have some additional data.


At any rate, of course there's a point where too much nozzle will cause the water injection pumps to drop pressure and you'll get worse atomization. I believe they say that's around with two of their "625" nozzles? I'd hope somebody knows. Regardless, they seem to work beyond that.

I don't know, too many people using the kits as straight bolt-ons, not enough experimentation with them.

Im running one snow 625 and a devils own 8xx, off 1 snow pump. Seems to spray fine, and isn't doing my oil any harm.

Sent from my phone, probably while driving, so please excuse the typos.

[Smokie Okie]

[You must have a real long hose, do other cars tend to run it over when you drive?:stab:[/QUOTE]

:lolly:

[RedBowTies88]

So,...is the intake pipe you have it plumbed into 4+ in diamater? If not it seems like that would cause an issues with droplets

[madmikeismad]

So,...is the intake pipe you have it plumbed into 4+ in diamater? If not it seems like that would cause an issues with droplets

Me? Just plumbed into the top of stock intake horn. But I haave it set very progressive where it doesn't spray 100% until over 25psi

Sent from my phone, probably while driving, so please excuse the typos.

[Sandaholic]

So,...is the intake pipe you have it plumbed into 4+ in diamater? If not it seems like that would cause an issues with droplets
Good call.

Me? Just plumbed into the top of stock intake horn. But I haave it set very progressive where it doesn't spray 100% until over 25psi

Sent from my phone, probably while driving, so please excuse the typos.
Nope he was talking to Begle, and I immediately saw his point.

[RedBowTies88]

^ yep thanks.

Plus even if you have a 5" pipe if the injector protrudes more the. An inch or so it will be far less then 4" to the sides of the pipe.

[madmikeismad]

Anyone ever trying plumbing them in at an angle so they spray down the tube instead of directly at the far side?

Sent from my phone, probably while driving, so please excuse the typos.

[RedBowTies88]

Anyone ever trying plumbing them in at an angle so they spray down the tube instead of directly at the far side?

Sent from my phone, probably while driving, so please excuse the typos.

I was thinking about that, but more in like a direct port setup. I think 6 or 8 100-150cc nozzles would yeild better results then one or 2 large nozzles of = flow. And it seems like it wouldn't be terribly hard in a cummins setup

[Jim Fulmer]

Has anybody ever ran a "625" or "1000" mL nozzle in a bucket for a minute and seen how much they actually flowed?

(2) 625'S AT 190 psi flow 1/2 gal per minute with zero boost ( in a bucket) tested this like 7 years ago, sorry I fell behind on posts :)

Jim

[RedBowTies88]

Never factored in boost,... Makes sense though 200psi pushing against 50psi I'm sure makes a different.

[Farmallgray]

Probably a good idea to check nozzle flow to compare apples to apples. I'm dealing with a much smaller application than you guys but through some rough testing I found out that what I bought as a 250cc nozzle was more like 380cc. I couldn't figure out why my EGTs were higher with a 180cc and a 90cc (270 total) than with a single 250cc.