wondering if any of you guys use water injection. i have an N/A engine but would still like to use this. Im just posting here because most people use water injection so they can run more boost. but im having trouble because most water injection is run of a manifold pressure switch. and i dont have pressure i have vaccume. any ideas on how to control a pump depending on rpms?, or load? thanks

Walter

 

you can run it off an RPM window switch, but unless your running really high compression it'll be useless for you

 

also a nitrous full throttle switch would work

 

water injection actually should do a lot for an N/A engine. it should increase efficiancy gas milage, and help it to run cooler, and i will be running pretty high compression, and it should allow me to advance timing without any spark knock
thanks for the infomation
Walter

 

what is water injection?

 

Try it, it should work but I don't know anyone who's done it.

In theory you should be able to run more timing/compression on **** gas (which may help also since quite often 87 octane has more energy in it then 89 or 91-94). There would be much simpler ways to do it but if I was going to waste my time with it I'd probably go completely wild to it and trigger it off the/a map signal, so when it turns on and how much you get would depend on load. You could accomplish something very similar by using the TPS sensor signal, but in either way you'll have to figure out how to activate it at a specific voltage (which is what makes it slightly more complicated).

 

Holley dissagrees. Water injection was very common on low compression cars in the 70s and early 80s.


I have a _complete_ holley water injection kit for a N/A car. I still may use it, but its been on the shelf since I bought it. If your interested, cash (or paypal) talks.

-- Joe