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How do u choose the right nozzle size?

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Old Dec 6, 2010 | 08:51 AM
  #16  
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Originally Posted by mt057
Yes the DDS3 has a power button on its face. When off or error occurs it will switch to the alt map.
ok do you know which pin it gets wired to? is it pin 42 like in the link u sent me or another pin?
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Old Dec 6, 2010 | 09:13 AM
  #17  
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From: DFW
Yes input #42 I found the wiring diagram at www.waterinjection.info

here it is...Name:  HFS-3mapswitchwirediagramH3-EVO8-USDM-MS.gif
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Old Dec 6, 2010 | 09:51 AM
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From: Poughkeepsie NY, Central Jersey Shore, Fort Meade MD
Originally Posted by mt057
Yes input #42 I found the wiring diagram at www.waterinjection.info

here it is...
awesome this is perfect and exactly all the info i need....just finding out what parts i need for my dual nozzle set up and ill be good to go ..i hope this helps others looking for this info also
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Old Dec 6, 2010 | 10:37 AM
  #19  
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ok so i did the math on the link u posted for finding out what size nozzles to run and i came up with 2x .8 nozzles. this was calculated figuring the 165psi pump for the hfs6, my 880cc injectors, 30psi peak boost, on a 50/50 mix. does that sound about right or did i miss something

Last edited by 03evilution; Dec 6, 2010 at 11:17 AM.
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Old Dec 6, 2010 | 01:58 PM
  #20  
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Originally Posted by mt057
Yes the DDS3 has a power button on its face. When off or error occurs it will switch to the alt map.



The Aquamist kits uses jets and the link I posted for jetting calculations includes both jet size/flow and basic nozzle size/flow as well. I would think that it would be based off more than just Hp. Some use it simply for knock supression others as cheap race gas.
good info, what I meant by the hp thing is, when i called labonte they ask what were my goals in terms of HP and thats how they measure what the right nozzle would be.
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Old Dec 6, 2010 | 02:55 PM
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From: DFW
Originally Posted by 03evilution
ok so i did the math on the link u posted for finding out what size nozzles to run and i came up with 2x .8 nozzles. this was calculated figuring the 165psi pump for the hfs6, my 880cc injectors, 30psi peak boost, on a 50/50 mix. does that sound about right or did i miss something
You have to subract your boost pressure from your pump pressure when reading from the flow chart. I use 100% meth for ease. No mixing required

For % replacement of fuel basic rule of thumb as follows...

100% meth ~ 25% of fuel
50/50 m/w ~ 15-20% of fuel
100% water ~ 10% of fuel

esevo knows alot about WI I wish he would chime in...

Are you calculating in IDC as well?
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Old Dec 6, 2010 | 05:57 PM
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Anybody has the pinouts for the evo7 ecu for the Map switching
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Old Dec 6, 2010 | 07:20 PM
  #23  
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From: DFW
Originally Posted by EvoPower81
Anybody has the pinouts for the evo7 ecu for the Map switching
Found this one at www.waterinjection.info as well.
Name:  H3-EVO7-JDM-MS.gif
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Old Dec 6, 2010 | 08:02 PM
  #24  
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From: Poughkeepsie NY, Central Jersey Shore, Fort Meade MD
Originally Posted by mt057
You have to subract your boost pressure from your pump pressure when reading from the flow chart. I use 100% meth for ease. No mixing required

For % replacement of fuel basic rule of thumb as follows...

100% meth ~ 25% of fuel
50/50 m/w ~ 15-20% of fuel
100% water ~ 10% of fuel

esevo knows alot about WI I wish he would chime in...

Are you calculating in IDC as well?
yea i used the 135psi range subtracting 30psi peak boost and used the 20% fuel for the meth water mixture..i pretty much just followed each step and ended up with 774.4 which divided in half is 387.2 which is a little above the .7 so im assuming i would be using two .8's...correct me if im wrong
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Old Dec 6, 2010 | 08:11 PM
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From: DFW
Sounds good to me. With the HFS - 3 or 6, you can step up the gain to increase the IDC slope of the jet. It is also very easy to add a larger jet if needed. I guess the larger injectors threw me off. I thought the jets would be bigger, but you are mixing water in.

Last edited by mt057; Dec 6, 2010 at 08:14 PM.
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Old Dec 6, 2010 | 08:46 PM
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Good info. Looks like the nozzle I have is a little too big for my setup but it works. Looks like I should be using 2 nozzles instead of one. Where should one mount 2 nozzles? I have mine between the i/c outlet and the bov right now.
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Old Dec 7, 2010 | 06:33 AM
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From: Poughkeepsie NY, Central Jersey Shore, Fort Meade MD
Originally Posted by mt057
Sounds good to me. With the HFS - 3 or 6, you can step up the gain to increase the IDC slope of the jet. It is also very easy to add a larger jet if needed. I guess the larger injectors threw me off. I thought the jets would be bigger, but you are mixing water in.
i figured i would run the 50/50 as i have read somewhere the 100% denatured alcohol will begin to corrode the fittings over time as it is a mild acid and the fact that i would be driving around with a flamable tank all the time kinda had me turned off the idea of it too. either way 50/50 or 100% i know i will still benefit from the kit and my mods. is it ok to use a little larger nozzle or go to a nozzle just under and turn the spray up as u said?

Originally Posted by wizzo 8
Good info. Looks like the nozzle I have is a little too big for my setup but it works. Looks like I should be using 2 nozzles instead of one. Where should one mount 2 nozzles? I have mine between the i/c outlet and the bov right now.
from research that i have done i have heard between 8-12" before tb and then the second one 6" before that one anywhere between the ic and the tb is the ideal location though and they say the further back u place it away from the tb the better the atomization for an more even distribution between the cylinders

Last edited by 03evilution; Dec 7, 2010 at 06:39 AM.
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Old Dec 7, 2010 | 06:59 AM
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From: DFW
Using 100% methanol can corrode the connections over time. The older style shurflo pumps were prone to leaking. The new Aquatec pumps have a greatly improved design which seals the pump head extremely well. People have been running them for years with no leaks now, so I have heard. The only other place I got a leak from was the quick connect fittings. I had to replace them all with compression fittings. The new kits come with compression fittings for all connections. The only one you would have to order is the little T fitting for running 2 jets. Gasket maker can be used to seal the pump or any O-rings that give out, if either ever occur.

Good call on the jet location.
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Old Dec 7, 2010 | 07:08 AM
  #29  
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I wonder if a 50/50 mix will burn? I put some 100% in to a empty/clean cat food can and they dont lie. Methanol burns clear and colorless. The only way I noticed the flame was from the heat bending the sun light in its shadow. I could not even tell it had been lit. Sure enough though if I held a stick over it, the stick would start burning.

That is also why I opted for a FC from Howerton Engineering. It is much easier to fill, has a vent line with a built in check valve to prevent spillage upon flip over, contains baffles to prevent sloshing, has a protected inner tank, and is bolted to my truck. He also offers two tank enclosures. Getting rear ended on that side would suck but it makes me feel better about it.

Originally Posted by 03evilution
...is it ok to use a little larger nozzle or go to a nozzle just under and turn the spray up as u said...
It is ok to use a little larger nozzle. I calculated to use a 1 and .8 but I am going to step it up a little. You can easily tune it out. The only time that it would become an issue is if you start pooling. When I was over jetting and I changed gears my afr would drop to 8-9 and stay that way for a second. If I went straight into the next gear and got back on it. The afr would stay in the 9-10 range and drop again in the next gear. My old tuner was dumping it in. I figured it out when I bought a wide band and started to learn to tune.

Last edited by mt057; Dec 7, 2010 at 07:18 AM.
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Old Dec 7, 2010 | 07:18 AM
  #30  
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From: Poughkeepsie NY, Central Jersey Shore, Fort Meade MD
Originally Posted by mt057
I wonder if a 50/50 mix will burn? I put some 100% in to a empty/clean cat food can and they dont lie. Methanol burns clear and colorless. The only way I noticed the flame was from the heat bending the sun light in its shadow. I could not even tell it had been lit. Sure enough though if I held a stick over it, the stick would start burning.

That is also why I opted for a FC from Howerton Engineering. It is much easier to fill, has a vent line with a built in check valve to prevent spillage upon flip over, contains baffles to prevent sloshing, has a protected inner tank, and is bolted to my truck. He also offers two tank enclosures. Getting rear ended on that side would suck but it makes me feel better about it.
pretty sure i read in the new modified magazine thats out that the 50/50 mix doesnt burn when lit. as for that tank u have how much did it run you? i seen it in your other post and liked it
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