Spray pattern with Recessed Meth nozzle (vid & pics)

[robc1976]

Took these pics while my wife did 7/5 command mode with the recessed nozzle and it doesnt seem to be hitting the sides at all. Again this is with the naked eye on video. This was with a DO10 nozzle.

[GetSomeE92]

Oh man, that seems like a ton of flow. I wonder what it looks like when the air is pressurized and flying through there?

[Wedge1967]

Hey Rob, hows the head after your Methanol video? LOL sniff, sniff... LOL... did you order some FTW Purple E85? Think I need to buy a couple of 5g cans for Shift Sector. Instant power add...

[robc1976]

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Hey Rob, hows the head after your Methanol video? LOL sniff, sniff... LOL... did you order some FTW Purple E85? Think I need to buy a couple of 5g cans for Shift Sector. Instant power add...

LOL!! I think I was a bit high!! Purple E85?

[robc1976]

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Oh man, that seems like a ton of flow. I wonder what it looks like when the air is pressurized and flying through there?

Plus the other DO7...I bet it is much better with pressurized air.

[rader1]

I keep trying to give you some rep however i have, apparently, given you too much already judging by the "you must spread rep" message i keep getting

I am a HUGE fan of data and demonstration and you sir are providing both

[Dr. G]

This is exactly what I found with my CM10 as well, nice to see it captured on vid!!

When I was testing mine out I had a couple things pop into my head:
1) When there is extremely pressurized, fast flowing air atomizing the mist, the spray pattern will bend in the direction of the airflow a bit. To counter that concern I was thinking that since the mist is coming out pressurized and in a funnel type orientation, the mist would bend a bit further from the point at where the recessed area is since it is most densely packed and pressurized there.


2) since airflow will follow the path of least resistance the recessed area is where some of the air will be directing towards. There's a possibility that the air atomizing and bending the mist as well as blowing it up into the recessed area could cause small droplet formation on the recessed edge.
I'm assuming that with the rate of air flow this would be VERY minor if it were to occur at all and if it did, the droplets would be pretty far from the throttle body so they would still atomize to a degree as they approached it.

Edit: now that I think of this, the pressured mist coming in would promote a downdraft as well, but either way - it's way too minor to worry thinking about LOL, I just stuck it in there and said F it, it's good.

[xbox_fan]

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This is exactly what I found with my CM10 as well, nice to see it captured on vid!!

When I was testing mine out I had a couple things pop into my head:
1) When there is extremely pressurized, fast flowing air atomizing the mist, the spray pattern will bend in the direction of the airflow a bit. To counter that concern I was thinking that since the mist is coming out pressured and in a funnel type orientation, the mist would bend a bit further from the point at where the recessed area is since it is most densely packed and pressurized there.


2) since airflow will follow the path of least resistance the recessed area is where some of the air will be directing towards. There's a possibility that the air atomizing and bending the mist as well as blowing it up into the recessed area could cause small droplet formation on the recessed edge.
I'm assuming that with the rate of air flow this would be VERY minor if it were to occur at all and if it did, the droplets would be pretty far from the throttle body so they would still atomize to a degree as they approached it.

Sounds like a question for @DBFIU

[xbox_fan]

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Took these pics while my wife did 7/5 command mode with the recessed nozzle and it doesnt seem to be hitting the sides at all. Again this is with the naked eye on video. This was with a DO10 nozzle.

Great pics, thanks! +repped!

[LostMarine]

that seems like a TON of flow man.. you tested actual flow, ml/min?

[trufus]

I stumbled on a video @Hotrod182 made a while ago with similar results.



It doesn't seem like there's much to worry about here, unless you're aiming for complete optimization.

[DBFIU]

the ratio of the momentum of both streams of flow is called the blowdown ratio, it can tell you how far the penetrating flow stream will make it into the cross stream and also tell you how far away you need to be before the mixture becomes homogeneous. There are a plethora of equations that can predict that and it is very popular thesis for a lot of people that are into interacting mixtures.

[Sticky]

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Great pics, thanks! +repped!

Same here, nicely done.

[robc1976]

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I keep trying to give you some rep however i have, apparently, given you too much already judging by the "you must spread rep" message i keep getting

I am a HUGE fan of data and demonstration and you sir are providing both

I greatly appreciate that my friend!

[robc1976]

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that seems like a TON of flow man.. you tested actual flow, ml/min?

I actually havent....It looks like a ton of flow but wasnt as much as it seems....it looks like a waer faucet but the towel i had in the CP was not very wet. I know methanol evaporated but it was not very wet.

[robc1976]

I need to clarify, I found out the nozzle in the vid was a DO7 NOT a DO10.

[robc1976]

I havev shaved down the Meth bung to make noozle flush....DIY will be posted.

[robc1976]

Here is with dual nozzles, much better pattarn and optimization....the flow looked so extremen on the 1st vid beacuse it was 250 psi going to a DO7. the vid below is a DO7 & DO10

[trufus]

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Here is with dual nozzles, much better pattarn and optimization....the flow looked so extremen on the 1st vid beacuse it was 250 psi going to a DO7. the vid below is a DO7 & DO10

http://youtu.be/xuEdZnE_sSI

A bit OT, but dude... I watched some of your spider videos. That $#@!'s crazy.

[robc1976]

Made a DIY here for meth bung shaving:

http://www.bimmerboost.com/showthrea...897#post401897

Here is the finished product:

[robc1976]

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A bit OT, but dude... I watched some of your spider videos. That $#@!'s crazy.

Been doing that for 24 years LOL!!

[Tzu]

Rob, not to be OT, but you put a single bung in your intercooler? Still debating about a custom up-pipe with bungs or just putting both on the IC outlet.

[LostMarine]

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I actually havent....It looks like a ton of flow but wasnt as much as it seems....it looks like a waer faucet but the towel i had in the CP was not very wet. I know methanol evaporated but it was not very wet.

you should test it, im curious now. also, how is it controlled and what are you power levels?

[robc1976]

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you should test it, im curious now. also, how is it controlled and what are you power levels?

It is controlled with a BMS FSB...I am at about 520+ last time I dynoed meth flow cut out (different kit) I got pissed because it kept getting air in the lines. I crumbled up the sheet and put it in my console....wife cleaned car and can you guess where my crumbled up Dyno sheet went? Yeah...right in the trash ...my fault though lol!

that is with a 90 additive and 24 over boost safety...in the vid I am at 80 additive.

[robc1976]

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Rob, not to be OT, but you put a single bung in your intercooler? Still debating about a custom up-pipe with bungs or just putting both on the IC outlet.

I put 2nd bung on the lower intercooler pipe at the elbow. I didn't want to go lower because I wanted to minimize drain. When I had a single DO14 I had my selonoid literally 2" from the nozzle lol!!