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Forced Induction Turbo, Supercharger, Methanol, Nitrous


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Old 07-17-2014, 04:40 AM   #1
ptuning
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PTUNING Plug and Play WMI (Water/Methanol Injection) System and ECUTek Tuning

As many of you know already know, we've been working for quite some time developing and perfecting our PTUNING PnP WMI System. In addition, we've also logged a substantial amount of time on the dyno in the past year or so to bring you the ultimate in WMI.

Having successfully used WMI on our own championship winning, 565whp 93 pump gas, Time Attack Scion tC, we've always been big fans of a properly set up and tuned WMI car.

WMI, when properly implemented and dyno tuned can yield excellent results, especially on an engine like this that is so ridiculously knock limited due to the ultra-high factory compression ratio. WMI is an excellent alternative for FR-S/BRZ owners who do not have readily accessible E85 stations, like us. It's also a better alternative for those who need to leave their cars sitting for months at a time while on deployment, etc.

Extensive dyno testing and tuning with our PTUNING FR-S Turbocharger System yielded solid results. On a 9.5psi tune on straight 93 pump gas we made around 320whp. With the additition of WMI and tuning with our custom PTUNING ECUTek tune, we made an additional 20whp at the same boost level. Aside from being able to run leaner AFR's and more timing, we're able to run more boost. We also managed to crack the 400whp barrier on our Dyno Dynamics Dyno with WMI and 93 pump gas.

WMI allows us to reach MBT timing at boost levels that you would only expect to see when running E50 or higher. What this means to the owner looking for a solution to inconsistent performance on 93 or even crappy 91 pump gas is that you can now expect full power when on track. As everyone knows, heat soak causes power loss, even more so with this engine. The factory ECU uses continous knock feedback to keep your motor in one-piece when you're hammering on your car during hard driving conditions. WMI pulls heat away from the combustion chamber and effectively raises the gas octane rating in the process.

We're still finishing up the PnP wiring harness. We'll put up a new link here to the vendor section when it's all ready to go.





(Shown with cover removed for access to AEM WMI control knobs)


(Shown with protective, anti-tamper cover in place. Safe for car meets, etc. )


- Toan

Last edited by ptuning; 07-18-2014 at 06:24 PM.
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Old 07-17-2014, 04:42 AM   #2
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Implementing WMI on the FR-S/BRZ using our own PTUNING developed custom ECUTek RaceROM maps:

We've spent a lot of time developing our own custom ECUTek RaceROM maps to allow us to run one of the safest and most seamless possible WMI scheme ever seen on a factory ECU controlled engine. We wrote and dyno tested countless numbers of different custom maps before settling on just the right combination of custom written RaceROM maps. We plan on using these custom maps to create an integrated WMI control system for customer's who choose to have us dyno or ETune their WMI setup.

Our PnP WMI System, when used in conjunction with an optional AEM WMI flow gauge will allow us to control all failsafe, fueling, timing, and boost parameters directly through the factory ECU using custom RaceROM maps.

Our tunes will automatically know where to implement a boost fuel-cut (different for pump gas vs WMI) and what timing and AFR's to run and what boost to run too. It will also do this with closed-loop feedback boost control with optional boost by gear and/or boost by speed, also in implemented to run in closed-loop. Our custom maps will also include built-in safety parameters to alter boost based on oil temps, water temps, and even boosted air temps. We're also putting the finishing touches on WOT closed-loop fueling controls and AFR failsafe too.

What does this all mean? You'll no longer be stuck limping around with a watered-down pump gas tune should your WMI system malfunction. WMI tank empty or WMI jet get clogged? The ECU will know what to do. WMI line pop off? The ECU will know what to do. We're no longer limited to just pulling timing, switching off the EBCS solenoid, or blinking a light when there is a problem with the WMI system.

- Toan
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Old 07-17-2014, 04:43 AM   #3
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Old 07-17-2014, 06:02 AM   #4
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Much respect, this seems to be very well thought out alternative to Flex Fuel
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Old 07-17-2014, 07:21 AM   #5
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Is it possible to use Water/Ethanol mix instead of methanol ? I'm asking because methanol is illegal in my country and we don't have E85 stations, but we have a lot of vodka! Expensive but i would only use it in race conditions.
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Old 07-17-2014, 08:21 AM   #6
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Is there any data or estimation as to how many seconds of WOT that can be supplied based on that tank size?
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Old 07-17-2014, 04:55 PM   #7
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Quote:
Originally Posted by Manji View Post
Is there any data or estimation as to how many seconds of WOT that can be supplied based on that tank size?
When we were running a 650cc jet on our TA Scion tC, we had no problems making it out on track for at least two 30-minute sessions before refilling the 1-gallon tank. We've had customers with 450whp built tC's that only fill up every 1-2 months. It will depend heavily on driving habits.

For the average person using this on the street, you would likely only need to look at the reservoir with each fill-up. Most folks check their oil levels with each fill up anyhow so it's perfect.

For the person that is looking to use this system for HPDE use, I'd say that the reservoir should have no issue keeping up with the capacity of the fuel tank.

- Toan
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Old 07-17-2014, 06:03 PM   #8
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Will this kit fit right in with RHD cars? Without your tune, is it possible to run other failsafe tunes from my local ecutek tuner?
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Old 07-17-2014, 06:05 PM   #9
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Where do you get your supply of methanol. I found it difficult to source methanol and either bought Boost Juice or Heet bootles.
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Old 07-17-2014, 06:09 PM   #10
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Will this kit fit right in with RHD cars? Without your tune, is it possible to run other failsafe tunes from my local ecutek tuner?
This WMI system will only fit LHD cars. If there's enough interest in a RHD version, I'm sure we can produce a limited batch to fit RHD models as well.

Depending on your tuner's preference, he may just want to have the AEM's WMI failsafe output trigger a relay to shut off your boost solenoid, if you're running a turbo.

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Old 07-17-2014, 06:31 PM   #11
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Where do you get your supply of methanol. I found it difficult to source methanol and either bought Boost Juice or Heet bootles.
Most local tracks and speed shops that offer VP racing fuels will also carry M1 Methanol. You can mix this with distilled water in a 50/50 mix. 50/50 by volume works just fine, though some purists like to be cute and do it by weight. I say keep it simple and just do it by volume. Just as long as you're consistent with it from the get go, you'll be fine.

Boost Juice purchased from Summit Racing in a 4 gallon case may be cheaper than buying direct from Snow Performance. I need to check on that again though.

The other alternative would be to just use Peak (rated to -20F) Windshield Washer Fluid. This is readily available from Wal-Mart and contains about 30 percent methanol. Avoid the ones that have lower freezing point or the Prestone versions as those will contain Glycol, which is a no no.

While washer fluid does contain a tiny bit of detergent and coloring, like the Boost Juice, we've never had any issues with it. Our lead tech here has been using the same brand Peak washer fluid for the past 7 years on his turbocharged xA and has logged over 250k miles on the same WMI pump and control mechanism.

My order of preference would be:

1) mix my own 50/50 mix using VP methanol and distilled water
2) Boost Juice
3) Peak washer fluid with 30 percent methanol
4) straight distilled water

- Toan
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Old 07-17-2014, 06:56 PM   #12
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Most local tracks and speed shops that offer VP racing fuels will also carry M1 Methanol. You can mix this with distilled water in a 50/50 mix. 50/50 by volume works just fine, though some purists like to be cute and do it by weight. I say keep it simple and just do it by volume. Just as long as you're consistent with it from the get go, you'll be fine.

Boost Juice purchased from Summit Racing in a 4 gallon case may be cheaper than buying direct from Snow Performance. I need to check on that again though.

The other alternative would be to just use Peak (rated to -20F) Windshield Washer Fluid. This is readily available from Wal-Mart and contains about 30 percent methanol. Avoid the ones that have lower freezing point or the Prestone versions as those will contain Glycol, which is a no no.

While washer fluid does contain a tiny bit of detergent and coloring, like the Boost Juice, we've never had any issues with it. Our lead tech here has been using the same brand Peak washer fluid for the past 7 years on his turbocharged xA and has logged over 250k miles on the same WMI pump and control mechanism.

My order of preference would be:

1) mix my own 50/50 mix using VP methanol and distilled water
2) Boost Juice
3) Peak washer fluid with 30 percent methanol
4) straight distilled water

- Toan
In the state of CA windshield washer fluid does not contain methanol. Auto shops here say it is illegal to carry it.
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Old 07-17-2014, 09:01 PM   #13
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Have you tested this on an NA engine?
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Old 07-18-2014, 12:35 AM   #14
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+1 for RHD application.

Sounds like a great system.

Here's a great thread that should answer all of the questions for people not familiar with these systems.

Go read this http://forums.nasioc.com/forums/showthread.php?t=937176

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