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The mkiv Supra Owners Club

Best Pump for Water Injection


bolarbag

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What is the best most reliable pump for WI? I'm be running some methanol too, dont want to buy an aquamist kit as I'll be using the motec to control the injection, I've heard various reports that they fail aswell

 

Adequate size jets for around 600hp?

 

I remember seeing a company from the states that produced a reliable water/meth pump, alkali or something, can't find it

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Why are you going to use the MOTEC to control it?

 

Are you going to be mapping it in, ie more boost, ignition and less fuel, if so will you also have the motec setup to detect a WI system issue, ie pump failure, blocked jet or filter etc.

 

Just asking as most people simply use it for a little added safety, a simple pressure switch which turns it on at approx 1bar is normally enough, the cars are then mapped with the WI disabled so that if there is an issue you dont blow the motor.

 

FYI I run a Aquamist 1s activated at 1bar with 50/50 water/meth.

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a WI system issue, ie pump failure, blocked jet or filter etc.

 

More flexibility of when the water injection comes on and off, and more conditions, as well as seperate maps

 

I can set up the pump detection failure, and pressure sensor, dont expect the jets to become blocked,

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Have you ever recorded intake temps before the mix is added and after

 

Nope, I rarely download logs from my ECU, I can check when I am next out if you like.

 

How many jets do you have what size and where are they positioned?:)

 

I have a single .7mm infront of the throttle at the moment, I have a couple more jets and a small manifold so that I can try different sizing and location. Just havent got round to it yet.

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http://www.aquamist.co.uk

 

aquamist is a good system and their pumps can be used with methanol.

 

i havent heard of "high failure rates on them". my mate has used aquamist on his cosworth engines for the past 8 years. he uses 100% meth on a seperate container and he has moved the kit through several applications (different cosworths) in the past 8 odd years.

 

the only thing he has changed in that time is the in-line filter and a relay (the realy got water soaked and rusted over time) recently he also purchased a new loom that comes with the dash lights to show you details of the system in use, armed, low water/meth levels.

 

otherwise very reliable IMO

 

:search:

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