Flow vs Pressure

[parmas]

Originally Posted by rotrex

The injection control valve will only work to some max. Pressure. Check the data sheet of the valve you use.Doubling pressure only gains you some 40% more flow. Pipe fittings become challenging at such high pressure.

The check valve used on the Pre-turbo is branded Hamlet 316_Stainless and works in 3000psi systems. Also much expensive though worth it. The inlet/outlet is 6mm I don't know how much I can flow to it until I test it. See attached..


The pump case might not sustain 450PSI vs. the outside and leak or crack.
The serial arrangement is not necessary. Just use them in parallel and get the jets yOu need for the flow you need. you can always just add more.

Well the pump case could be an issue, I have to check with Aquatec about it. Parallel would be best for methanol flow needs while Series would be better for water droplets

My system is based on the old AM 2c system. I have now replaced the race pump with a Flotec pump. Otherwise it stil works the same. 150 PSI rail pressure buffered by a accumulator. The mix is metered by a HSV PWM control valve. I think AM now seems a FAV (fast acting valve). My flow indication is the pump running indicated by a LED: if it blinks or illuminates, the mix is flowing. The faster it blinks, the more I flow.

I have an AEM flow gauge and software datalogging. I can datalog how much injected during a run. Could you give more details on the HSV PWM control valve and Flotec pump you have like links etc..

There is no reason to build something like this, just with 4 pumps and the according number of jets. Likely a single FAV will flow enough.

Did not understand the above...

Fuel injectors are ethanol and fuel compatible these days. MEthnaol compatible injectros are likely identical except someone did the effort to test compatibility.
Common to all fuel injectors is that they cannot tolerate water similar to fuel pumps with ther fuel cooled rotors. They corrode from the water.
You need special metering valves that are designed to be compatible with with water. They are not common. Aquamist is one of the few (actually the only one) selling those.
I have a HSV under ECU control and it is one fine piece of valve. Current modulation frequency is set to 80Hz.


Could you indicate what Aquamist valve are you referring to?

Pure methanol corrodes aluminium if exposed over prolonged periods of time in a container, especially if contaminated by acids or bases breaking down the passivity on layer of aluminium. Water reduces this effect. That is why storing 50:50 mixes causes no issues.

Are you sure your race fuel shop cannot provide race spec e85? It would make your life much easier as you could use mostly common fuel pumps and injectors for a secondary injection system.
Then again, add water as necessary with your current WMI system.

I meant E85 is not available at the pump station, you need to go buy it directly from the Racefuel company like VPracing. As you see I like to go big so methanol is the first priority fuel if it happens the case of any issues along I might reconsider E85 or pure ethanol then

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