I'd ask either Nem (SRB2NV) or Karl (90TTZ). The former looked into it for a long time and was close to taking the plunge, the later has a working system and 500+ RWHP. The consensus I got was that in recent years a few viable kits have emerged that could be used. Never saw anyone following through though. MoulaZX
Thread with opinions on why/when to inject meth http://www.aus300zx.com/forum/showthread.php?t=311206&highlight=meth+injection
How about E85 with meth injection? will definitely improve clutch kicking. More seriously its not pump fuel everywhere so further out it may be easier to get the few litres of MeOH per tank needed for injection than to fill it with E85
you have already got 85% ethanol and around 105 octane ... dont need it . I'm surrounded by e85 pumps
what size injectors are you running and what fuel pump, if i convert to e85 ill be up for a new fuel pump and ditching my brand new 550cc injectors and taking a few 44s up to powerplay in may lol, whats shelf life of the stuff like
IMHO not worth it on a road zed With the abundance of good aftermarket intercoolers readily available at an economical price, it is not worth going the water injection route unless you are planning on wringing every last possible horsepower out of your zed (i.e pushing the envelope) In my younger turbo days I used water injection, but that was as a safety measure because intercoolers were not readily available. If you do go with injection, don't muck around with methanol..... it's too dodgey. Water is 'as safe as houses', and available everywhere..... no need to carry a supply 'cause you can fill up at the servo when you get your petrol. Water injection is another thing you have to constantly monitor (something else that can go wrong), whereas intercoolers are consistent and nearly foolproof.
What he said. However, water injection works and works well and is a worthwhile addition. Further up the thread there are a couple fo claims of E85 being all you need. well, not at all. There is no real magic bullet built into that fuel and only surrounding mods will gain any real Hp. However, any decrease in inlet air temp and resulting increase in inlet air density INCLUDING a small increase from using the fuel results in a bigger bang. What water does successfully is increase inlet air density. It also has a nice side effect of eventually stripping carbon out of combustion chambers!!!! Forget funky jungle juices/mixtures and such. Plain old water works just fine. believe me, years ago, i tried them all including funky mixes that contained acetone and other funky shite! Out E
To be honest, I'm starting to think about installing it for laughs. Just a straight up simple water injection. Don't really need it per say, but might be fun. MoulaZX
I want to do it so that the intercoolers can be removed and shorten the intake piping. For both faster response and fewer places for boost/vacuume leaks.
Ok kids, i know there are some that have installed water injection to their rides, Karl springs to mind staight up. What brands and setups are more favourable than others? Any reasons why one is better suited to a Zed over another will be appreciated.
Disadvantages of intercooler removal.... Intercoolers are functional whenever the car is moving, so they will be contributing to charge density under ALL circumstances (including vacuum). Water injection is normally only set to 'trigger' when certain boost levels are attained (eg 10/12/14psi), so is NOT functional all the time. WI could be set up to function constantly but that would entail the need for multi staged injectors (more complexity) and a 44gallon drum of water in the boot IMHO if you feel the need to install WI because you're going to boost your zed to 'within an inch of it's life' every so often, by all means do so (it's a good safety measure)..... but don't eliminate the IC's that are contributing something the other 90% of the time
there is **** all heat been produced when you are off boost. you know not all turbo cars run intercoolers. you would have the water meth tuned for when you really need it. it isnt going to hurt your car runnning 6-7psi (a2zed NA - TT rings a bell). for the benefit or removing intercoolers + safety in tuning it is great. you dont get heat soak either.
Intercoolers dont to jack under a vacuum, its not a refrigerator. Otherwise every NA out there woul benefit from an intercooler. Intercoolers dont work just when the car is moving. They only take out above ambient heat from the charge. So they only work when the car is boosting, and do a better job of that if the car is moving because the airflow reduces heatsoak increasing effeciency. WI can reduce the intake temps to below ambient temperature. So they can work better than intercoolers. So they can be used in an NA with benefit aswell as extra benefit in a TT.
I think the biggest problem here is there are a few that have "been and done that" and others that read all of what the googleweb have to say. Good and bad. And with out specific numerical data, people are unsure as to what to use and where to go. I too looked into all of this and DIY'd a kit to suit my applications. It wasnt a zed, but my turbo 720. One thing you have to work out is at what boost level you with to have the system trigger. For this i got a variable pressure switch. Range, 5psi - 30psi. This is my trigger point. Next i had to work out the liters per minute at which my nozzles sprayed at, to which gives you an indication as to what size tank you need. Ive got 0.8mm brass nozzles. I cant recall the lpm usage at the moment as i cant remember the pump pressure. But either way i had a smallish transfer pump, 0.8mm nozzle and a 5kg stainless steel fire extinguisher as the reservoir. All running through 1/4 nylon tubing with quick release ends. Essentially this would outlast my fuel tanks capacity, providing you didnt drive like a race car driver. As realistically how often are you on "x" boost pressure for minutes at a time. My aim of the system was to alleviate excess heat entering the intake as i was running without an IC for a while. I stopped with the install due to sourcing a W2A IC kit from an RS Liberty. But after recent events i may still install the WI kit. As the need is there. As above, jungle juices can work well, but for everyday use, simple water injection is perfect. It offers a near exact result every time the system is activated. Another debate to be has is where in the line does one install the nozzle. Just before the TB, 6 inches away to allow for atomization. Right at the hot side outlet, pre turbo? All offer different results, and again all have been debated. This is where the user needs to test and try to find their premium install position. Early days, guys used to use a simple setup which merely consisted of a tank, pump, hose, and carby needles. As you could source all kinds of carby needles at different flow rates/diameters. And a simple test was to slide the needle along side the pipe at which the hose/silicone joiner clamped over the top. It would introduce a mist into the system, allowing you to work out what worked best for your setup. I with my setup expanded with some safety margins. I planned to install a non return valve so that the pressure side of the pump had water still in it. This meant it would activate near exactly when preset boost pressure was sensed. I then also got a jaycar water metering kit at which installed in the extinguisher tank. That would buzz and shine a light when water levels got below a predetermined level. I also got a fine filter inline, to which if ever dirty water entered the system, it would stop potential blockages in the 0.8mm nozzle. Simple but effective addons. If you want to go with a more modern nozzle. Use a small top fed injector. It can activate off the pressure switch at the same time the pump turns on, and has a definite shut off and leakage protection measure built in. Just have to remember that water if not demineralised will eventually block it up and diminish operations. Do it if you want to. Kits can be had for cheap on the net, and you simply take a gamble at its quality. Or you do as ive done, and individually select each component based on research in build quality and longevity. If anyone wants pics of my parts, just ask and ill organize them.
