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-   -   Aquamist 2d Install ? on an FD? (http://www.aquamist.co.uk/forum2/vbulletin/showthread.php?t=2140)

Tem120 29-12-2011 02:34 AM

Aquamist 2d Install ? on an FD?
 
hi I purchased a second hand aquamist 2d unit . BUT it came with NO instructions I am at a complete and utter loss as to how to even begin to install it . Is there possibly a link to the original instructions or a quick guide as to what goes where ? and how ? hah .

I'm sorry if this has been asked a million times , I tried doing a quick search but it seems that its dominated by the newer models and not much on the 2d system

Howerton Engineering 29-12-2011 05:20 AM

Re: Aquamist 2d Install ? on an FD?
 
http://howertonengineering.com/retir...m-information/

Scroll down to the third section.

Tem120 29-12-2011 10:02 AM

Re: Aquamist 2d Install ? on an FD?
 
thANKS very much! it was extreemely helpful . But a quick question

The purple wire says " FI % monitor 0-5v = 0-100% , where does that go to?

also if you dont mind does the fuel injector wires go to the main fuel injector rail , or just a random injector doesn't matter which ?

Richard L 29-12-2011 10:37 AM

Re: Aquamist 2d Install ? on an FD?
 
IDC pick up can be connected to any one of the fuel injectors.

The purple wire is intended for IDC logging/moinitoring purpose usage.

Tem120 16-01-2012 02:37 AM

Re: Aquamist 2d Install ? on an FD?
 
Thanks for all the Help , I got it connected to one of the primary injectors it wasnt easy ..

Now all thats left is the TAP .. I have a greddy elbow http://www.rotaryextreme.com/greddyelbow.jpg

now my thoughts are I bought a used model , and it has a very very little bit of thread on the injector where does that thread onto? am I uspposed to drill and tap the elbow then screw it onto that? or am I supposed to usea NUT and screw the nut onto the thread of the injector?

and if I'm supposed to drill and tap is what sized bit and tap do I use ?

g's 3rd gen 16-01-2012 08:03 PM

Re: Aquamist 2d Install ? on an FD?
 
You ned to rewire the green wire to the secondary injector (light green) on a n fdrx7. You do not want to tap the greddy elbow as it will strip because the aluminum is too thin to support threads. Buy one of these http://www.howertonengineering.net/p...Weld-Bung.html and have it welded to it for long term use. If you buy the bung also purchase the plug http://www.howertonengineering.net/p...king-Plug.html I just did this complete system on my fdrx7. G

Tem120 16-01-2012 10:45 PM

Re: Aquamist 2d Install ? on an FD?
 
Quote:

Originally Posted by g's 3rd gen (Post 15813)
You ned to rewire the green wire to the secondary injector (light green) on a n fdrx7. You do not want to tap the greddy elbow as it will strip because the aluminum is too thin to support threads. Buy one of these http://www.howertonengineering.net/p...Weld-Bung.html and have it welded to it for long term use. If you buy the bung also purchase the plug http://www.howertonengineering.net/p...king-Plug.html I just did this complete system on my fdrx7. G

wow .. that just ruined my day lol I spent a couple hours to tap the injector wires yesterday .. I tapped one of the red injectors .. did you mean

the green wire? from the injector as the one I managed to tap had a green and a black/yellow wire..

Or is it hte color of the injector itself supposed to be green? the green wire from the system is supposed to be the negative isn't it ? why is it important to get the negative from the green from the secondary injector?

Also I wired it to the upper most injector rail , the closest injector to the firewall on the top rail . it has a puke green , and black/yellow wires . the motor is out of the car . so I dont even know which one is pos or neg , so I just have them onto an extension which I would solder into the aquamist system after I got the motor running and found out which is which .

but i'd like to understand why is it that I need to get hte negative lead (green from the aquamist system) from the secondary injectors ( I imagine you mean the lower rail )

Tem120 16-01-2012 11:14 PM

Re: Aquamist 2d Install ? on an FD?
 
Aslso could I not just FIND the injector wires that come from the ECU in the harness instead of taping into it from so near the injector? what color are the wires for the secondary injectors if you happen to know?

Richard L 16-01-2012 11:31 PM

Re: Aquamist 2d Install ? on an FD?
 
Some information below, worth trying.
http://www.aquamist.co.uk/vbulletin/...ead.php?t=1979

Tem120 17-01-2012 01:00 AM

Re: Aquamist 2d Install ? on an FD?
 
Quote:

Originally Posted by Richard L (Post 15816)
Some information below, worth trying.
http://www.aquamist.co.uk/vbulletin/...ead.php?t=1979

ok so according to that , the primary works always , while the secondary works part of the time ( after the primaries reach 50% workload , NOW , does the aquamist work depending on the workloado f the injector? say 25% the aquamist throws out a preprogrammed ammount ?

but even when the secondary's activate they work at the same % as the primary's so if at I dont know what kind of measurement it uses but lets say , 1v is idle , and 6v is full throttle .. if the IDC works based on current then weather its on the primary or secondary , 3v will be 3 v on the primary or secondary .. unless there were some way to program the IDC to mate it with the injector's flow rate itself . so the secondaries at 50% load is 400 CC , and the primaries at 50% load is about 250 CC .. so it would be better to put it on the secondaries because its the one with the most flow and thus give the aquamist a better ratio .

BUT since it has no calibration .. what determinates that the secondary injectors are better then the primary since whne the secondaries are working so is the primary .. unless the fear is the aquamist will trigger because the primaries get to 50% quickly and it might stop combustion since there is little fuel . but shouldn't the aquamist only work when the car is in boost anyway?

Richard L 17-01-2012 10:34 PM

Re: Aquamist 2d Install ? on an FD?
 
The aquamist will follow exactly what the primary injector is doing in 50%. If the injector is throws out a 50% of fuel, aquamist willdo the same for water. This is mirrored electromechanically.

The actual flow (cc/min) will be based on the flow at 100% of the size of the injectors and size of the water jet.


Unfortunately the weird staged primary injector makes things difficult for the water injection to flow linearily based on thr primary injection signal:

Primary: ... 0 ............. 25% ................ 50 %->25% .................. 100%
Secondary: 0 ...............0........................ ..... 25% ................... 100%

Based on the above sequence, it is better to tap the signal from the secondary fuel injector. If you want to track fuel below 25% iDC, you need add a "RX7 summer module". Details on the earlier link I posted.

Tem120 17-01-2012 11:21 PM

Re: Aquamist 2d Install ? on an FD?
 
I need a guide as to how IDC systems work , and if they need 2 criterias to work , injector pulse + boost pressure , or if they work reguardless of boost pressure and maybe boost pressure just increases the amount of spray? :confused::confused:

Richard L 17-01-2012 11:48 PM

Re: Aquamist 2d Install ? on an FD?
 
You can look at this link how the summer works
http://www.aquamist.co.uk/vbulletin/...ead.php?t=1979

The v3 summer needs primary and secondary signal. Trigger point is bsed on the the sum of the IDC signal. The summer can also be triuggered by 0-5V or a voltage-based MAP sensor signal.

The summer is designed IDC to "sum" two idc signals, boost cannot influence the summed output. The RX7 summer is an "add-on" to solve the unusual stepped sequence of the primary and secondary injectors.

We believe the idc signal contains all the information of multiple sensors on the engine. tracking this signal is a good representation of all loads.

As I have mentioned before. It you only need to inejctor water above 25% IDC, you don't need it, just read the idc signal from the secondary injector.

Tem120 18-01-2012 01:24 AM

Re: Aquamist 2d Install ? on an FD?
 
Quote:

Originally Posted by Richard L (Post 15822)
You can look at this link how the summer works
http://www.aquamist.co.uk/vbulletin/...ead.php?t=1979

The v3 summer needs primary and secondary signal. Trigger point is bsed on the the sum of the IDC signal. The summer can also be triuggered by 0-5V or a voltage-based MAP sensor signal.

The summer is designed IDC to "sum" two idc signals, boost cannot influence the summed output. The RX7 summer is an "add-on" to solve the unusual stepped sequence of the primary and secondary injectors.

We believe the idc signal contains all the information of multiple sensors on the engine. tracking this signal is a good representation of all loads.

As I have mentioned before. It you only need to inejctor water above 25% IDC, you don't need it, just read the idc signal from the secondary injector.


my car isn't a drag car.. just the oposite if anything it will be more geared twards track / auto-x . I want to run windshield fluid not straight water , for protection against knock , and cleaning / cooling purposes

I already have an aftermarket ECU , so if the deal is its going rich in the lower RPM's I can lean it out if needed . I have a wideband so I can see if its going to rich . the summer thing looks great .. but I'm tapped atm.. I want to get the car running after its running I can work on making the car perfect.

do I NEEED to wire it to the secondary injector ? will it caause the car to sputter to something ? because to do that it will be a big pain. damnit.. I'm just pissed off atm LOL I think its better to just tap the ECU harness.

and to re iterate what I understood .. at 100% flow of the secondary injector's the aquamist will be throwing out more water , then it would be at 100% of the primary?

Tem120 18-01-2012 04:21 AM

Re: Aquamist 2d Install ? on an FD?
 
welp you guys convinced me I'll reroute it to get the feed form the secondary injector's BUT! I could use a little help with that . i want to take the feed from the harness and not from so close to the injector , on the v3 summer diagram it shows that you can take the feed from the harness that plugs into the ECU , My harness is a JDM harness would you know if hte colors have changed? also on the ECU there are 3 plugs but the diagram doesn't show 3 plugs just one big one ? am I to assume that the one big plug is all the plugs on the ECU combined for simplicity? also on the summer diagram ..

what is shown is that the ECU itself ? or the harness plug that connects to the ECU? ( in order to locate the correct wires )

Richard L 18-01-2012 12:08 PM

Re: Aquamist 2d Install ? on an FD?
 
The diagram of the v3 is colour coded, so check it against your ecu. If the pins arrays are totally different from the v3 diagram, I have no other ideas apart form tracing the wires all the way from the fuel injectors to the ECU.

Tem120 19-01-2012 02:47 AM

Re: Aquamist 2d Install ? on an FD?
 
hah yeah but what i'm asking is the diagram is that the face of the ECU? or the face of the plug from the harness?

also the wire I tapped is most similar to the LG ( light green) on the diagram . LOL itsa solid LG I have pictures of the injector I tapped if I find my camera i'll try and post them but reguardless I've decided to take the wiring from the ECu because it will be much less messy comming form the engine bay I think.. I looked at the engine harness today and the first 4 wires are green , solid green , green with white line , geeen with red line , and green with another line thats on the harness I have an inkling that those are the injector wires . BUT they are in a different location than depicted on your diagram I will upload some pictures

BUT I just wanted to say thanks alot for all the help . and for putting up with my stubborn ness hah . I definitely want one of those summer things .

Tem120 19-01-2012 05:07 AM

Re: Aquamist 2d Install ? on an FD?
 
scratch that I located the 4 light green wireswith colored strips going from them .. but according to that and the diagram the tap that I have done atm is to a secondary injector the wire is solid green . lol

Richard L 19-01-2012 08:16 AM

Re: Aquamist 2d Install ? on an FD?
 
Quote:

Originally Posted by Tem120 (Post 15828)
hah yeah but what i'm asking is the diagram is that the face of the ECU? or the face of the plug from the harness?

also the wire I tapped is most similar to the LG ( light green) on the diagram . LOL itsa solid LG I have pictures of the injector I tapped if I find my camera i'll try and post them but reguardless I've decided to take the wiring from the ECu because it will be much less messy comming form the engine bay I think.. I looked at the engine harness today and the first 4 wires are green , solid green , green with white line , geeen with red line , and green with another line thats on the harness I have an inkling that those are the injector wires . BUT they are in a different location than depicted on your diagram I will upload some pictures

BUT I just wanted to say thanks alot for all the help . and for putting up with my stubborn ness hah . I definitely want one of those summer things .


The drawing is looking at the bare pins of the ECU. No wire harness is involved.
A good picture will be a great help for all. With and with out the harness plugged in.

Tem120 21-01-2012 01:52 AM

Re: Aquamist 2d Install ? on an FD?
 
Sorry for hte late replies

http://i233.photobucket.com/albums/e...7/DSC02046.jpg

http://i233.photobucket.com/albums/e...7/DSC02041.jpg

http://i233.photobucket.com/albums/e...7/DSC02052.jpg

the first one is where the injector I tapped is .

second one is the actual injector plug notice hte black/yellow , and green wire

Last one is 4 green wires one solid and 3 with different colored stripes which kind of match your diagram . well the 4 green wires are the forward most , and the rest is well the plug

Richard L 01-02-2012 12:44 PM

Re: Aquamist 2d Install ? on an FD?
 
It appears the wiring can be taken from the ECU. See below:

http://www.aquamist.co.uk/forum/gall...7/injector.gif

Tem120 06-04-2012 03:38 AM

Re: Aquamist 2d Install ? on an FD?
 
ok its been a long time I got it all wired in , and I almost got hte car on the road

the only thing I'm lacking now is some sort of way to inject the water into the engine , just post IC ??

and also http://www.howertonengineering.net/p...Weld-Bung.html

will this work with the aqua mist 2d ?

Tem120 06-04-2012 04:10 AM

Re: Aquamist 2d Install ? on an FD?
 
hmm I have a question I dont know if this is the correct place to ask . but maybe someone can point me in the right direction ..


So when the A/I is working and functioning correctly . should it affect my Air/fuel Ratios?

will it read richer as the alcohol burns ? or will it read as if it wasn't there .

Tem120 04-05-2012 04:17 PM

Re: Aquamist 2d Install ? on an FD?
 
how do I adjust when it injects water?

its currently injecting at around 7 PSI . I'd like fori t to inject earlier

Rub20B 11-12-2019 11:57 PM

Re: Aquamist 2d Install ? on an FD?
 
Having no experience with the kit itself I would def take either of the secondary injectors. Simply because you only need water in a boosted area, and the sec inj are on when being boosted. Using the primaries could also work but they can reach consoderable duty cycle with no or very low boost just before the secondaries get ramped in.


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