davenew

Here's the pump and pressure regulator I have in mind. The regulators are on ebay ~$110 new, and the pumps run around $60-75 new. After this, I still need nozzles, solenoid valve, and boost switch to control the valve. I'll probably try bidding on used ones, if reefer_bob isn't logged on. Spray.com has nozzles with built in mesh screens, but I haven't picked one yet. Then again, it would be easier to use aquamist's nozzles.

Another idea is, since the pump has so much extra flow, I could install an extra tee and solenoid valve to spray nozzles on the ICs. That way I could run the water injection with or without the IC sprayers to save on water.

I called aeromotive to ask if their regulator would handle water without rusting. He said it should be no problem since it's aluminum and the seat is plated steel.

What pressure does aquamist use for their nozzles? I'm sure I can find it online but does anyone know? I planned on using 40psi, raising to 60 with boost.

The problem with most cheap WI kits is they don't factor in the fact that a nozzle will flow less as boost rises. You would have to size the nozzle for max boost. Any other time the nozzle will flow too much water. By setting up a loop, with the regulator, it will maintain proper pressure, just like fuel injection. This way I can use the cheap shurflo pump.. Not to mention save quite a few hundred over buying aquamist. Has anyone priced out a replacement aquamist pump?


<a href="http://www.shurflo.com/pages/new_industrial/Industrial/gen_industrial/subcategories/8000_ADP_12DVC.html">shurflo pump</a>

<a href="http://www.shurflo.com/pages/new_industrial/Industrial/gen_industrial/genind_doc_sum/8000-543-238.html">shurflo pump pn 8000-543-238</a>

<img src="http://www.shurflo.com/pages/new_industrial/Industrial/gen_industrial/genind_img_sum/8000-Series.jpg">

<img src="http://www.aeromotiveinc.com/prod_imgs/img-10-1-large.jpg">
<a href="http://www.aeromotiveinc.com/pdetail.php?prod=10">aeromotive regulator</a>

Flyboy

if the pump is pushing 60 psi into 20 psi of boost, the result is effectively 40 psi of water pressure. Make sure that's enough pressure to adequately atomize the water, the finer the water droplets the more effective the WI system will be. If the droplets are too large they won't absorb as much heat, and will have more trouble staying suspended as the airflow changes direction.

ImolaPR

and there's also a 220psi upgrade pump. BTW, are you planning to go 1 or 2 nozzles and where would you be placing the nozzle(s), near the throttle or further back? 8^)

ImolaPR

in the fuel rail? Thanks. 8-)

davenew

I'll look into it. It definitely makes sense to use higher pressure for smaller droplet size. IF so, shurflow does sell a 150psi pump similar to the other one.

I assumed you would get way more than 200cc/min (0.052 GPM) out of a 0.7mm (0.027") dia spray nozzle at much more than 40 psi. A typical spray.com nozzle with 0.025" dia, shows getting 1135 cc/min at 100 psi. The aquamist nozzle must not have a smooth hole. Of course, sray.com has hundreds of various nozzles, so I'll look into it further. thanks for the help

davenew

The kit has what looks to be a shurflo pump. The problem is I don't see where all the extra water goes. They must be using a pump with an internal bypass. It runs up to whatever pressure it's set at which opens the internal bypass valve.

With a separate regulator, I could adjust the pressure to fine tune the flowrate of the nozzles. WIth the boost connected to the regulator, it would maintain the same flowrate as boost raises.

davenew

which hoses? is it something I can easily see on my engine?

ImolaPR

valves.

davenew

Active
Location: Active Autowerke Miami, Florida, USA.
EVO Specific: No
Capabilities: Adjustable manifold pressure activation
Pump: Shurflo
Electronic Controller option:: not mentioned on site
Chemical compatibility: Water, Alcohol
Failsafe: not mentioned on site
Price range: US$750.00
Warranty: Not mentioned on site
URL: http://activeautowerke.com/cooling/main.php
EMAIL: aatuning@activeautowerke.com

Alkycontrol
Location: Alkycontrol. USA.
EVO Specific:
Capabilities: Progressive delivery proportional to MAP sensor
Pump: Shurflo
Electronic Controller::Based on PAC module controlling pump speed to vary pressure
Chemical compatibility: Water, Alcohol
Failsafe: low alcohol sensor
Price range: US$425-495
Warranty: Not mentioned on site
URL: http://www.alkycontrol.com/
EMAIL: Online form or phone 727-526-9724

Aquamist
Location: ERL Ltd, Sussex, England.
EVO Specific:- NO
Capabilities: Static flow, mappable, ECU interface and map switching
Pump: Own design - magnetic piston type
Chemical compatibility: Water, Methanol. (100% methanol and 10-20% nitromethane (teflon seals -supply on request)
Failsafe: - Dash Flowmeter or full-time monitoring via "signal error comparator" circuitry - boost control and map switching output.
Price range: US$585.00-3000.00+
Warranty: 12 months
URL: www.aquamist.co.uk
EMAIL: info@.aquamist.co.uk (sales enquiry), richard@aquamist.co.uk (technical)

Aquastealth
Location: USA.
EVO Specific:
Capabilities: Static flow, Pressure switch activated inline solenoid.
Pump: Shurflo
Chemical compatibility: Water, Methanol, isopropyl and ethanol.
Failsafe: unspecified
Price range: US$239.00
Warranty: Not mentioned on site
URL: www.aquastealth.com
EMAIL: sales@aquastealth.com

Coolingmist
Location: Atlanta (Norcross), Georgia, USA.
EVO Specific:
Capabilities: Static flow - single or duel solenoid
Electronic Controller: Micro-based pump pressure/speed controller. Price to be announced.
Pump: Shurflo
Chemical compatibility: Water, Methanol safe
Failsafe: hi/lo system pressure switch to detect loss of pressure or clogged jet.
Price range: US$199.00-499.00
Warranty: 90 Days
URL: www.coolingmist.com
EMAIL: sales@coolingmist.com

Devilsown
Location: Washington, USA.
EVO Specific:
Capabilities: Static flow, PWM pump speed control option
Electronic controller option: 2/3 bar option - pump speed control . Price US$105.00
Pump: Shurflo
Chemical compatibility: Water, Methanol
Failsafe: Pump current overload detection. update

Price range: US$185.00-345.00 + MAP sensor
Warranty: One Year Limited
URL: www.devilsownonline.com

EngineRunup
Location: USA.
EVO Specific:
Capabilities: Static flow and two stage. Solenoid controlled
Electronic Controller: Call
Pump: Shurflo
Chemical compatibility: Water, Methanol.
Failsafe: two pressure switches to detect clogged jet (250psi) and low tank level option
Price range: US$189.00-359.00
Warranty: 12 Months
URL: www.enginerunup.com
EMAIL:info@enginerunup.com

Gaseous Intercooling TM
Location: Blowerworks. New Jersey, USA.
EVO Specific:
Capabilities: Static flow and two stage
Pump: Flojet
Chemical compatibility: Water, Methanol.
Failsafe: Flow switch
Price range: $395.00-540.00 basic to Standard Plus (with solenoid)
Electronic flow controller: US$195.00 sold as an optional extra
Warranty: 90 Days
URL: http://www.blowerworks.net
EMAIL: greg@blowerworks.net

Hyper-drive
Location: Hyperdrive inc. Maryland, USA.
EVO Specific: YES
Capabilities: Mappable pump speed controller
Pump: Shurflo
Chemical compatibility: Water, Methanol, isopropyl and ethanol.
Failsafe: low water level sensor.
Price range: US$750.00
Warranty: not mentioned on site
URL: http://www.hyp-drive.com/products/alcoholinj.htm
EMAIL: resolution@hyp-drive.com

RSR
Location: RB Racing, California, USA.
EVO Specific:
Capabilities: Static flow, Port injection
Pump: Shurflo
Chemical compatibility: Water, Methanol.
Failsafe: water level switch
Price range: US$185.00-345.00 + MAP sensor
Warranty: call
URL: www.rbracing-rsr.com/waterinjection.html

SMC
Location: SMC Enterprises, Kentucky, USA.
EVO Specific: YES
Capabilities:Progressive controller
Electronics controller option: - control pump speed to vary flow.
Pump: Flojet/Rotary fuel pump
Chemical compatibility: Water, Methanol.
Failsafe: tank level sensor at present.
Price range: US$399.00-499.00
Warranty:90 Days
URL: www.smcenterprises.com
EMAIL:schlupsa31@mchsi.com

Snow Performance
Location: Snow Performance, Colorado, USA.
EVO Specific: YES
Capabilities: Static flow, solenoid
Electronic controller option: Progressive pump speed controller +$129.00
Pump: Shurflo
Chemical compatibility: Water, Methanol
Failsafe: flow switch based. $99.00
Price range: US$185.00-439.00 (MAF vs Pump speed)
Warranty: limited option by vendor
URL: http://snowperformance.net
EMAIL: mbsnow57@msn.com

Spearco Water Injection System
Location: Top-End Performance, N.Hollywood, California.USA.
EVO Specific: No
Capabilities: Static flow
Electronic controller option: Progressive pump speed controller +$129.00
Pump: Not specified
Chemical compatibility: Water, Methanol
Failsafe: Not secified
Price range: US$219.00
Warranty: Call
URL: http://www.h2oinjection.com
EMAIL: topend@racetep.com

TTP Engineering
Location: Orlando, FL USA.
EVO Specific:
Capabilities: Static flow, Progressive controller -sold separately(PWM pump)
Pump: Shurflo Based
Control option: pressure switch, TPS or MAP (0-5v selectable)
Chemical compatibility: Water, Methanol
Failsafe:upgrade path available
Price range: from US$299.00(base) + accessories
Electronic Controller: Variable injection rate controller now available
Warranty: Call
URL: http://www.ttp-engineering.com
EMAIL: online form filling

rojodosformula::red

so you can adjust how much water you want at any given pressure as long as it's scaled say from 1psi to 15psi. Between the regulator on the pump, the electronic boost pressure regulator, and the jet size, how much more regulation can you ask for?? You must work for the IRS?? =) I did however have an idea of using a greddy emanage as a controller for total output control over everything using any other system as a referance. Maf voltage, boost pressure, injector duty cycle. Absolute total control of pressure any where in the rpm band. Would love to see someone give it a shot one of these days.