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Old 09-27-2015, 12:00 PM   #26
LittleBlueGT
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From my last 10 yrs of tuning Subaru's in North America I really don't think anyone will make an OTS tune for the meth, it would be nice, but I don't see it.

Almost everyone here will use a COBB AP.

That being said, many many tuners will gladly tune for it, just that COBB won't.

All that we need to ask for (that is maybe attainable) is for COBB to integrate some sort of map switching hack into their software, then the AM kit could use it.
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Old 09-27-2015, 12:15 PM   #27
Aquamist
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In that case, I just have to work with the tuner to protune the engine for meth, we will supply the failsafe.

For some unknown reasons, this platform is extremely quiet compared to the EJ community. WMI is extremely suited for this direct injection engine, in term of in-cylinder cooling, cleaner valves and octane supplement. good safety record too.
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Old 09-27-2015, 12:59 PM   #28
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Quote:
Originally Posted by Aquamist View Post
In that case, I just have to work with the tuner to protune the engine for meth, we will supply the failsafe.

For some unknown reasons, this platform is extremely quiet compared to the EJ community. WMI is extremely suited for this direct injection engine, in term of in-cylinder cooling, cleaner valves and octane supplement. good safety record too.
Give it time, it will get more vocal. You've got over a decade of EJs floating around, that is plenty of time to find the limit and start pushing.

I'm very enticed by WMI. Not for power, but just to run water as a means of cleaning the engine.
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Old 09-27-2015, 02:06 PM   #29
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Quote:
Originally Posted by Aquamist View Post
For some unknown reasons, this platform is extremely quiet compared to the EJ community. WMI is extremely suited for this direct injection engine, in term of in-cylinder cooling, cleaner valves and octane supplement. good safety record too.
Right now this engine is not available in the STI, when that happens (or a variation of it) expect interest to pick up.
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Old 09-27-2015, 04:48 PM   #30
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Quote:
Originally Posted by Boggie1688 View Post
I'm very enticed by WMI. Not for power, but just to run water as a means of cleaning the engine.
+1
The power would be a nice bonus but the insurance of clean valves is primary. I'm at 30k and my tuner is wondering why I'm not making as much power as I should be compared to other younger 15's. We think the valves. WMI would definitely clean this up after I get blasted.

Aquamist, what is your opinion on pre-compressor WMI?
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Old 09-27-2015, 10:32 PM   #31
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When are you guys planning on releasing this kit?
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Old 09-28-2015, 11:26 AM   #32
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Quote:
Originally Posted by ForValhallaWeRide View Post
When are you guys planning on releasing this kit?
The kit is out. You can go and just buy it on their website. It is a universal kit.

It just sounds like they are giving us extra attention, IE: specific install instructions, to help promote adoption.
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Old 09-28-2015, 11:51 AM   #33
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I can only find the v3 kit not the v3.1 which I'm guessing is for the FA20DIT
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Old 09-28-2015, 02:08 PM   #34
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The kit is out - you need to select it on the site, the FA20DIT option is there, It will be a v3.1. We include specific diagram and posi-taps.

We are still looking into a PnP option, but it will take time - Subaru does not specify the manufacturers of the connectors, especially you want both male and female pairs.

Meanwhile, posi-tap is only option.

Last edited by Aquamist; 09-28-2015 at 02:28 PM.
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Old 09-28-2015, 05:17 PM   #35
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Quote:
Originally Posted by Aquamist View Post
The kit is out - you need to select it on the site, the FA20DIT option is there, It will be a v3.1. We include specific diagram and posi-taps.

We are still looking into a PnP option, but it will take time - Subaru does not specify the manufacturers of the connectors, especially you want both male and female pairs.

Meanwhile, posi-tap is only option.

Are you going to do a group buy?
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Old 09-28-2015, 05:32 PM   #36
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Quote:
Originally Posted by Aquamist View Post
This will be very useful information. Thanks.
The local shop is tuning Via an accessport (Cobb) with no issues. I can't say I would really want a Meth OTS tune. I would want to be as optimized as possible by that point.
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Old 09-28-2015, 05:37 PM   #37
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Default ECUTEK option

I heard back from ECUTEK today, Received quite a bit of very useful information. I like to pass them on.

ECUTEK does not offer OTS maps for the final user to upload via a OBDII device. Instead the tool is only available to license shops or tuners. So they are different to COOB at user level.

As for the Aquamist/DIT integration, it is amazingly good. I am quite excited to tell you guys what can be done...

The rear O2 sensor input is "re-purposed" for third party use. As long as the new signal is 0-5V, it can be used to alter boost, ignition timing, fuel flow etc.

This opens the doors for E85 flex fuel sensor, methanol injection etc. The Aquamist has a meth flow output signal to take full advantage of this option. Upon receiving the progressive fluid flow signal, the ECU will modify the stock map to increase power safely.

They also recommended a couple of US tuners who are familiar with this implementation.
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Old 09-28-2015, 05:46 PM   #38
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Quote:
Originally Posted by Supple1 View Post
Are you going to do a group buy?
No plans to do this until I fully comfortable of what we letting ourselves into. treading carefully at the moment. The DIT is new to us and the Aquamist is new to you. There are a few Beta tester out there already, I will post progress reports as they come in.
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Old 09-28-2015, 05:49 PM   #39
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Quote:
Originally Posted by shadow_772 View Post
The local shop is tuning Via an accessport (Cobb) with no issues. I can't say I would really want a Meth OTS tune. I would want to be as optimized as possible by that point.
Do know if there is a failsafe attached with the tune should meth stops flowing? Do post a progress report.

Optimized tune requires good failsafe, cannot rely on the OE ECU over stretching itself to protect the engine on extremely swings.
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Old 09-28-2015, 06:51 PM   #40
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Wait so what I'm gathering is you can't get a Cobb Protune with this system installed?
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Old 09-28-2015, 08:26 PM   #41
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Quote:
Originally Posted by ForValhallaWeRide View Post
Wait so what I'm gathering is you can't get a Cobb Protune with this system installed?
You can run it. The issue is that Aquamist (and most tuners/users) would prefer that when a failsafe is triggered - that it switches maps to safe mode (ie different map). Right now Cobb does not support this as far as I know. Hopefully this will be added when they release the flexfuel (which they state is coming, but who knows when).
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Old 09-29-2015, 03:25 AM   #42
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In the past, we put the car in safe mode from within the aquamist since Cobb never offer the "map switch" option, only Ecutek does.

The Aquamist will do two things when water flow is interrupted, it will drop boost (1) and put the ECU to "safe mode" (2) by grounding the "TEST MODE" connector. We are not sure if (2) is available on the DIT ecu.

In any case, Aquamist provides its own "turbine flow sensor" based failsafe, independent of any tune.


Just posted the wiring diagram.

Last edited by Aquamist; 09-29-2015 at 05:33 AM.
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Old 09-29-2015, 07:01 AM   #43
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I may have to go back to this setup on the new DIT motor since there seems to be an issue with the HPFP keeping up with E85 demand. I ran one of these on my Evo 9 years ago and wouldn't opt for anything else but Aquamist. Very top notch stuff. Thanks for the updates.
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Old 09-29-2015, 07:30 PM   #44
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This is interesting stuff, E85. What power did you made before the HPFP start to struggle?
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Old 09-30-2015, 02:47 AM   #45
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I'm not sure anybody really knows the answer to that question. It was just recently discovered that there seems to be a random significant pressure drop from the hpfp when running E85. I'm not sure if that's causing some of the issues with these cars popping motor running E85, but I would certainly think it's a potential culprit. These cars seem to make around 300 whp / 350 wtq with bolt on mods and E85 depending on of course which dyno platform you're talking about. The small turbo is the limiting factor along with the strength of the rods taking on a significant amount of torque at a very low rpm. This turbo motor combo makes peak torque around 3000 rpm.

I thinking just running the aquamist setup would certainly be beneficial, if anything to help keep the carbon deposits down on the valves.

What size nozzle(s) comes with the kit? I was looking on the site last night and didn't see it listed.

Does this new unit still have the ability to cut boost to wastegate if a failure occurs?

Where is/are the nozzle(s) being installed in the new DIT motors? I installed two nozzles on my Evo 9 in the intercooler piping (post intercooler right before the throttle body).
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Old 09-30-2015, 06:23 AM   #46
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I just read the "15+ WRX Motor failure roll call!" thread. Quite shocking!

Not all ran E85. but mostly tuned cars. I just wonder if it is due to the epic change from EJ-port injection turbo to FA-DIT?

DI is not new to Subaru, I believe the FT-86 (non-turbo) has given them some experiences of designing DI engines. The FA-DIT is a whole new world to them, perhaps it just need time to know the limits.

E85 and HPFP is a very common on all DI engine. Tuning for more torque around 3k rpm with advance timing (easily achieved for E85) put quite a bit of stress on the bearings. Knock is never a problem on E85.
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Old 09-30-2015, 05:20 PM   #47
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The FT-86 is Direct injection and Port injection. It uses Toyota's D-4S system. Even their HPFP were squealing terrible and required replacement. Some just to come back for another pump with the same concern.
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Old 10-01-2015, 06:32 PM   #48
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Quote:
Originally Posted by Aquamist View Post
In the past, we put the car in safe mode from within the aquamist since Cobb never offer the "map switch" option, only Ecutek does.

The Aquamist will do two things when water flow is interrupted, it will drop boost (1) and put the ECU to "safe mode" (2) by grounding the "TEST MODE" connector. We are not sure if (2) is available on the DIT ecu.

In any case, Aquamist provides its own "turbine flow sensor" based failsafe, independent of any tune.


Just posted the wiring diagram.
Any updates on whether the failsafe will work with the FA20DIT? I'm on the fence on buying your kit.
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Old 10-02-2015, 12:58 AM   #49
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What would be the recommended size for the FA? I know it says to subtract 160psi from your boost, but does this mean from peak or what it is once it tapers towards red line if that makes any sense?
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Old 10-02-2015, 01:44 AM   #50
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Wastegate boost on the stock turbo is around 8psi. Depending on whether it has boost creep when the exhaust is changed, the boost cut method mentioned by Aquamist should be sufficient.

Where E85 is readily available, I can see a preference for it since it is a simpler solution. However, that is not an option around here. I have had the Aquamist HFS-5 system in my 06 WRX since 2008. The turbo has changed many times but the HFS-5 remained. As long as common sense is applied during the install (i.e. don't mount the high speed valve next to the exhaust housing of the turbo), the system should provide many years of service. Also, to avoid mineral deposits, don't use tap water.

When I get around to installing the HFS-4 on my '15WRX, I'll take some pictures of the intake valves (currently at ~27,000km).

Don't do this:
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