Just wondering if anyone has tried this. I know for a fact you can run higher boost on pump gas with this and run it safely. This would solve some of the knock issues also.

FeedBack?

I don't think that the car would like meth much... you might though.

Methonol is a differnet story.

we use it in the supras all the time. A mix of it and water. It is sprayed in the intake. you can even use alcohol instead of meth.

Long read but I think its worth it. Here is the link.

http://supraforums.com/forum/showthread.php?s=&threadid=129468&perpage=25&highlight=meth injection kit&pagenumber=1

Aquamist baby! Good stuff. I have used it on every turbo car I've ever had.

charged performance has a new intercooler inlet hose with twin jets.... sounds like something i would be interested in having someone else install on their car.... too spooky for me..

Don't be spooked. It is old technology. Proven stuff that's been around for a long time.

Correct STFUtuning . Buick GN guys have been using it for a long time. I know it works but was looking for the application for the STI.

yeah ive read alot about it... but i cant get past the fact that it is basicly shooting water into your intake....
just an odd concept.
looks pretty straight forward..
http://www.chargedperformance.com/cpcwiproducts.htm

Originally posted by DISCOPOPE
yeah ive read alot about it... but i cant get past the fact that it is basicly shooting water into your intake....
just an odd concept.
looks pretty straight forward..
http://www.chargedperformance.com/cpcwiproducts.htm

pull up your skirt Sally. It is good stuff I run it in my all-trac for years and she was still 165psi across the boards afte 150k

does anyone with a STI have it??

matt i'll be more than happy to come and watch you intsall it on yours :)

I have it but it is not tuned yet. No reason to spray H20 into intake without compensated for it tuning wise. I have Ed's (ChargePerformaces) Aquamist 2-d kit.

Wiring and install on these things can get very complicated.

cool let us know when you get it up and running. I would love to see the gains and results!!

Originally posted by MAD TKD
does anyone with a STI have it??

Jeeze!
Get off your ST-hIgh horse and actually search the other forums here...
If you want to know specific injector sizes call aquamist directly and tell them what your plans are.

Jeeze!


Jeeze Like i said I am looking for STI specific gains. I know the 2.0L has some people using it

Originally posted by MAD TKD
Jeeze Like i said I am looking for STI specific gains. I know the 2.0L has some people using it

Use the seach function! There are several people that use it on thier STI. You should be a little more polite we are all here for the same reason.

LOL funny I have not gotten any STI users to chime in and I am being polite. I think the post by WRXpkr was not polite. And I did search .............

im gonna get one soon...want the utec bad first

Its hard to throw out "STi specific gains.". I would use just plain water injection in non-freezing weather. The best comparison is that water/alky injection helps you tune in a similar manner as you would race gas without as much risk of detonation as you would have on plain pump gas.


Don't read to much into what I said though -- I'm not saying you'll be able to run C16 tunes on water/alky injection.

Thats correct Bryan.

I guess we will have to see when i get mine!!! I was wondering if anyone had used it on the stock ECU to see how much it helped the knock problem and to see how they triggered it. I imagine though that you will prolly need a Programable ECU to really take advantage and to raise boost.

A 50/50 mix of Meth/Water would be like using race fuel but way cheaper

The search engine on this forum leaves a lot to be desired. Try searching on "water injection" or "aquamist". There have been over a dozen threads in just the last month. Several folks have run it on both the 2.0L and the 2.5 L engines. Not sure if anyone is running it yet on the new STi 2.5 ECU, but it is being used on 2.5 STi short block hybrids.

Larry

The only person I know of that is using it (STI app) and plans to use it in place of an intercooler is TurboICE (Ed). He knows a ton about it so either PM him or try to get him. As far as using it with the stock ECU, we east coasters have 93oct so no real need to. I guess if you can turn the boost up to 21psi on the VF39 it might be useful.

This is one of the more "advanced" mods and usually only goes on the advanced cars. IMO it is a little complicated and involved for the everyday user. There are a ton of components in the system that could fail and when you need WI is high boost, high RPMs which isn't a great place for the system to fail = new shortblock.

Most tuners are not familiar with it and need assistance tuning it as well. It can give you a 10-12% total HP (20-30ish for STI app) gain at the press of a button which is why it is so attractive to people, but it costs quite a bit to get to that in time, system part $, and more so, tuning $. You should also be very mechanically / electrically inclined so that you totally understand what is going on so that you can spot any problems the instance in which they occur. It seems that no one is mentioning the Cons only Pros of water injection on Nasiac.

I can't wait to get mine up and running however, and should have something working this Spring (fingers crossed).

Ed's setup for the STI has the stock waterspray pump priming the high pressure pump. This pump is controlled via a time delay relay which makes sure that the high pressure pump is not dry. This HP pump produces about 60-100psi of pressure that builds in a small accumulator to be released into the intake track via a high speed valve. This valve is driven off of a controller that uses an electrical signal from your injectors so it scales itself automatically with the fuel. This is why this system is so "good". You just need to adjust the water pressure (amount) once and the system scales it across the RPM/load range AUTOMATICALLY. I have my setup wired so that one single switch turns the water injection system on AND also switches maps on my EM (currently Xede).

When the system is on it makes a very noticable "knocking" of the high speed valve firing causing the high water pressure to impact against the components = vibration. Ed mounts this in the area underneath the windshield wipers and the pump is mounted and dampened on a very sturdy mount that comes with Ed's system (ChargedPerformance). When we were testing my system, the water comes out in very small burst at a high frequency (just the RPM). Ed gave me an introductory rate on this system because it is still a prototype and he has things that still need to be resolved, but I knew that going into it.

nice write up wgknestrick.

Thats the kind of info I was looking for. I can buy a kit for $400.00 from a guy that makes them for the supra.

Please post pics of it on your car and give us the heads up

Thanks

Aquamist is limited to 50% methanol because of the components. On the Subaru AKWRX is probably the most knowledgable with high concentrations of methanol - one of the first to put a supplemental injection system on a US WRX and on a US STi as well as some others include an SRT4. He uses components that are more tolerant of various alcohols.

wgknestrick has been very patient as we ran into issues with Subaru knowledgable tuners and possibly a damaged pump that I need to confirm - but it will all be resolved.

A good source to gain access to many knowledgable people (including hotrod and akwrx) is the information site we sponsor - http://waterinjection.info/phpBB2/ stop by there as well, read up and post question.

I know people like to find out specific to their application but sometimes gathering broad experience views is good. For instance even if looking for STi specific use this is really an engine management issue as you are looking to manage the combustion process and suppress detonation. AKWRX looks for these topics so I am sure he will eventually chime in with a completed STi use.

Over multiple experiences and across many applications in general I have found that for each AFR multiple you can lean a rich knock suppressing fuel setting you can increase torque in that range about 10% until you reach optimum mixture. So if you can go from 10.75:1 to 12.5:1 while still suppressing knock you should be able to get to close to a 20% improvement in torque in the range where that leaning takes place. These are rough numbers on 50/50 water/methanol and across many implementations.

Bobs Project very impressive (http://users.adelphia.net/~suparu/Water_Injection/Water_Injectionf.htm)


areg

very interesting Keep em coming.