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| Disco Frank |
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ok guys i am making my own watrer injection kit for summer
only want it to operate above 3-4rpm what i am looking for is a rpm activated swicth of some sort or a vacum operated switch ie high vaccum open circut low vaccum to zero vaccum closed circut this is to operate the water pump. also need a bleed back device or somethign to stop water flow when the pump is off as i do not want water to be "sucked" into the engine under the above load points.
_________________ RIP SCOTT |
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| Spork |
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Use two jaycar frequency switches in series. One hooked up to RPM signal and the other to the map sensor signal.
Try sealing the water tank so that it always sees the same pressure as the manifold. ie. when there is high vaccum the tank is at high vaccum. Have a look at intercooler "mist" type watersprays.
_________________ Manual EL Gli.
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| Slick |
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Disco Frank wrote: ok guys i am making my own watrer injection kit for summer do you mean 3000-4000rpm?only want it to operate above 3-4rpm what i am looking for is a rpm activated swicth of some sort or a vacum operated switch ie high vaccum open circut low vaccum to zero vaccum closed circut this is to operate the water pump.. get a "digital pulse adjuster" for $79.95 Cat No:KC-5385 & hand controller $59.95 Cat No:KC-5386 at jaycar. or cheaper, a micro switch. Disco Frank wrote: also need a bleed back device or somethign to stop water flow when the pump is off as i do not want water to be "sucked" into the engine under the above load points. water/Alcohol Solenoid or high quality brass checkvalve
_________________ Mind f**k!!! it works on feeble minded ignorant sheeples... there's plenty of em on this site... some are very intelligent but by god they are so thick!!! Pakrat wrote: You can buy them seppertly
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| Disco Frank |
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mm cheers guys...
yer 3000rpm and above.. i was thinkign about the micro switch after i posted this.. place it on the throttle body some how... have some parts just need a higher pressure pump( damn windscreen washer bottle pump is too week in testing  :(
spork wrote: Use two jaycar frequency switches in series. One hooked up to RPM signal and the other to the map sensor signal.
Try sealing the water tank so that it always sees the same pressure as the manifold. ie. when there is high vaccum the tank is at high vaccum. mm tank in boot!! and the jaycar swicthes i have no idea car to explain more for me?
_________________ RIP SCOTT Last edited by Disco Frank on Mon Dec 12, 2005 9:37 pm, edited 1 time in total. |
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| Slick |
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Disco Frank wrote: mm cheers guys... heres a direct link to jaycar KC-5384 http://www.jaycar.com.au/productView.as ... &SUBCATID=
yer 3000rpm and above.. i was thinkign about the micro switch after i posted this.. place it on the throttle body some how... have some parts just need a higher pressure pump( damn windscreen washer bottle pump is too week in testing :([quote=spork] Use two jaycar frequency switches in series. One hooked up to RPM signal and the other to the map sensor signal. Try sealing the water tank so that it always sees the same pressure as the manifold. ie. when there is high vaccum the tank is at high vaccum. mm tank in boot!! and the jaycar swicthes i have no idea car to explain more for me? A VP commy came with 45psi windscreen washer unit. you'll find them at the wreakers. 
_________________ Mind f**k!!! it works on feeble minded ignorant sheeples... there's plenty of em on this site... some are very intelligent but by god they are so thick!!! Pakrat wrote: You can buy them seppertly
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| Rapier |
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capa do kits now as well was lookin at their site the other day
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| Spork |
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Naa that's not it. Those only adjust pulses that the car is already recieving. Although you could hook it up to the fuel injectors and tune the water injector as a function of injector duty cycle but then you have to have a PWM solenoid.
I think you just want to switch it on or off. In that case look for a frequency switch. All it does is monitor a frequency input (like RPM signals or our frequency based MAP sensors) And switch someting on or off when the frequency passes a certain threshold (set with a screwdriver = easy). They are commonly used for shift lights etc. If you put two in series then both have to be triggered on before the water injection pump will start. = Done! Check your gregories manual it has the frequency ranges for the MAP sensor.
_________________ Manual EL Gli.
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| Walkinshaw |
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ermmmmmmmmm why???
n/a 6cyl right? Why do you want water injection.
_________________ Soo many idiots. So few bullets |
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| tickford_6 |
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Posts: 6449 Joined: 11th Nov 2004 |
what does it mater if it's N/A??
water injection helps to stop detonation. i know of a lot of N/A cars that suffer from it on hot days. |
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| Disco Frank |
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Walkinshaw wrote: ermmmmmmmmm why???
n/a 6cyl right? Why do you want water injection. yup more for the hot summer days
and a fun project not for anything serious at all so FREQUENCYSWITCH so why do i need 2? 1 off and 1 on?
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| snap0964 |
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Dunno if I'm looking at this too simply.
How about for your RPM interlock to use the ECU output to the VSV that controls the Broadband manifold. In EF/EL's it's pin 15, <3800RPM 0V, >3800RPM 12V. Splice into the equivalent AU wire for relay coil power. Then for further interlocks, as per what's already suggested. This might save 1 RPM switch at least.
_________________ 96 XH Longreach 'S': LPG, Alarm, 3.23:1 LSD, Cruise, Trip Comp, ABS, Power Windows, Mid Series Dome Lt, Climate Ctrl |
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| Slick |
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Disco Frank wrote: Walkinshaw wrote: ermmmmmmmmm why??? n/a 6cyl right? Why do you want water injection. yup more for the hot summer days and a fun project not for anything serious at all so FREQUENCYSWITCH so why do i need 2? 1 off and 1 on? that'll work too but you'll only need one. this is what water injection can also do for your engine.
_________________ Mind f**k!!! it works on feeble minded ignorant sheeples... there's plenty of em on this site... some are very intelligent but by god they are so thick!!! Pakrat wrote: You can buy them seppertly
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| twr7cx |
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Just incase your interested in having a look:
http://capa.com.au/capa_performance_water.htm http://capa.com.au/prices_capa_performa ... capa_water http://cgi.ebay.com.au/100-psi-Methanol ... dZViewItem |
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| Disco Frank |
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cheers seen all those.. so far parts haev cost me under $40
hoping to do this for less than $200
_________________ RIP SCOTT |
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