Water Injection For Dummies

[hawlass]

I've already caught her putting 91 E10 in it a couple of times which I wasn't happy about.

she gets confused at the pump "there's so many choices and they've all got different names"

Just get a sticker made for inside the fuel filler door , big letters '94 E10 ONLY'

Your friendly tuner may have some made already. My tuner stuck a 98 only sticker on my fuel filler door when it was tuned.

[jabtronic]

You mean low in the car or the capacity low?

Low in the car, its better to fit a solenoid or check valve otherwise you may get a siphon effect.

I'm currently gathering parts for a DIY water injection kit, not doing it for power gains at this time just lower intake temps and the DIY aspect.

These are the rough prices off the top of my head

Shurflow 60-90psi water pump - $120

Hobbs pressure switch ~4psi - $30

Aquamist water injection atomisating jet - $40

10L water jerry can - $10

Water solenoid valve - $10

4mm Nylon hose - $5

10mm water hose $5

Float switch (for tank water level) - $5

Total = $320

I'm also thinking of adding a manually activated intercooler spray basically T another hose off the existing water lines add another solenoid and some cheapo misting nozzles off ebay.

[MattyP]

Yeah that's what I was thinking too

The last thing you want is hydraulic lock.

Would you mount the tank in the boot or had another spot in mjnd

[10SECN]

Yeah that's what I was thinking too

The last thing you want is hydraulic lock.

Would you mount the tank in the boot or had another spot in mjnd

I would put it low in the front bar area... in the boot its still sitting pretty level with the motor

[MattyP]

I think if you mounted the tank low in the boot and had the injector at the top of the throttle body elbow you'd be ok or close to.

I just cant think of a spot were a 20l tank would fit in the engine bay

[barnz]

Put the battery in the boot and the tank where the battery was. The snow performance kits that jet mentioned look very good, a top shelf kit with a controller that can be mapped using boost, injector pulse width or both can be had for around 800 US.

There installation instructions do suggest having the injectors as the highest point in the system. You can put the tank in the boot but they make it sound like a bad idea and you need some extra gear.

[MattyP]

That's a good idea barnz apart from I just installed a plaz battery relo kit. Oh well.

Are you going go water injection as well?

[barnz]

Potentially, I need to evaluate it some more first but I'm thinking for a first round of power mods it might be interesting. My budget is tight atm with all the renovating and babies and chit but at around 2k for tune + xcal and a water/meth kit it would be interesting to see how far it would push a stock car, might even have to bung in a cat to push it to it's limit.

You guys have big coolers and fuel systems so the cooling and fuel mixture benefits aren't all that important as it's more the det resistance you guys seem to be chasing. However on a stock vehicle it could be much more beneficial. The kit im looking at comes with the uber controller and 2 injectors and I would be looking at running 50/50. Id want a tune that leans on it really hard so basically engine failure would occur fairly quickly if it failed. An everyday one that's somewhat more conservative and obviously a 98 one if I do the cat so I can pull over and change it if I have any trouble.

As far as I know nobody has tuned a fg with water meth as the only mod so it's hard to quantify its real world benefits but it all sounds good in theory....