steam injection.....

[87glsubie]

anyone ever messed around with steam injection???

[32ford]

nope but put water injection on a blown chev, made a big difference in engine temp

[nipper]

You mean water injection?

[coxy]

Water Injection is what you mean as the water turns to steam and in doing so lowers temps in the engine.

Benefits you clean all the carbon out of the engine,as long as you keep the water supply topped up it allows more ignition advance which improves power and driveability somewhat.

Have fitted sophisticated systems on turbo cars and more basic stuff on older carb cars with equally positive results.

Ford Escort cosworth Turbo rally homologation specials came stock with computer controlled water injection so major manufacturers have used it.

I used to fit it to many courier drivers vehicles and on a Holden(GM) 4.2 litre(253CuIn) V8 it allowed an increase from 6 to 12 degrees base ignition timing and resulted in an improvement in city driving of between 6 and 8 miles per gallon(Our Imperial gallon is 4.55 Litres as opposed to a US gallon being 4 litres).

Conclusion a worthwhile mod,use a mixture of water and methelated spirits so as to prevent algae growth in the tank.

A simple brass tube press fitted just above the throttle butterfly allows suction to feed the water into a carb system (Diameter internally about 2mm (KS Metals from a RC Hobby shop) plastic hose to suit and another length of brass pipe with about 3 holes of 1mm size in the brass pipe that allow you to slide as needed plastic tube over to either cover or uncover the holes will allow adjustment of the water flow by introducing air into the vacuum filled water supply pipe from a container (can use anything from a radiator overflow tank to a washer bottle or even a plastic coke bottle,just feed the plastic tube to the carb in from the top of the container)

This describes a simple system you can throw together in an hour or so to test on a carb car,it should also work on a throttle body SPFI system.

Turbo cars love this stuff just dont run out of water.

Cheers Coxy

[WoodsWagon]

I'm using a water injection system on my 2001 toyota tacoma 3.4l. I have a TRD supercharger on it with an undersized pully so it's making 8.5psi. The stock injectors can't keep up with it at higher rpms and the computer won't back down the timing maps far enough to keep it from detonating. I use winter grade washer fluid, which is 30% methanol. The methanol actually helps fuel the engine at the higher rpms, if I run straight water the power drops off as you come up to redline.

 

I use the stock washer fluid tank and pump, it's mounted down in front of the front wheel so it's lower than the intake, a Hobbs adjustable oil pressure switch, a washer nozzle from an 06 civic, and an evap soleniod from a t100. The pressure switch runs off of manifold pressure, when it hits whatever boost pressure you have it set to it opens the evap soleniod and turns on the pump. That sprays washer fluid out of the washer nozzle I have mounted in the intake tube right before the throttle body. It's a misting type washer nozzle, but the volume is kinda high and the spray pattern isn't ideal. It all gets distributed evenly when it hits the supercharger impellers and evaportated by the too-high intake temps on the other side of the supercharger.

 

I put a stock t100 washer fluid tank in the engine bay and use that to run the windshield washer. I did a little rewiring so both pumps are powered when the key is on and the injection system is grounded by the pressure switch. The T100 pump is run by the wiper switch.

 

It pulls way harder and I can't hear it detonate like I could before.

[Txakura]