I was reading about steve morris and one of his high hp motors that he used water only injection on. He injected it right before the procharger. Said it kept the charger cooler and tighter. It also provided the most cooling effect.

I plan on running ww fluid maybe with a little denatured added. I'm wondering how good of an idea it would be to spray it before the sc? Would the alcohol eat it? Seals?

IIRC, ww fluid will burn, I havent tried it. If so, it may not be a good idea.

I highly doubt ww fluid will burn. Not in the typical sense at least.

I'd spray it after, but while i'm thinking about it here, I don't think it would make a whole lot of difference really.

Well I'm sure it cools the blades and housing down. So I guess it might help prevent heat, which might have a big impact on the end temp.

I'll have to look up the corrosive properties of 30% ww fluid. It might eat the inside up.

your talking about water methanol injection right? i would spray it after the super charger, that way the excess heat in the supercharger doesnt evaporate the water b4 it can cool the cylinders...kinda pointless to inject it and not get its effect.... plus think about the pros at places like snow performance dont ya think if it would be more efective to spray b4 the charger they would recomend it? just my 2 cents....but good idea goin with the water/meth injection ive seen some dyno tests it really works well...

Well I just read up on it. Alcoholinjectionsystems.com had a good writeup on injecting before the turbine. The supercharger is whats causing the heat, it has nothing to do with engine cylinders.

Why its not recommended usually is because you don't want to spray it through a MAF or IAT sensors. It can also puddle in the intercooler. But with a carb like I have and no intercooler, this seems the best place to stick it.

The alcohol doesnt seem to have any corrosive effects on the wheels, it actually cools them, and increases the efficiency of the blower. More hp!
They said that you want to use a high pressure kit, not one that squirts a stream because the stream will erode the blades.

[quote=Batass;3738749] The supercharger is whats causing the heat, it has nothing to do with engine cylinders.
quote]
yeah i know the supercharger is super heating the air, presurizing air heats it plus it flows through the supercharger that gets hot from friction causing even more heat but thats the thing, you are generallu trying to cool the intake charge in the cylinder to help prevent detonation and pre ignition....ive had turbo charged cars b4 i know all about forced induction....

Most of the guys locally who you water injection on superchargers spray it before the blower.

I think its what I'm going to do. I'm going to run a 50/50 mix so I don't have to pull much jetting, if any, out of the carb. Denatured seems to cool better, but methanol provides more power as a fuel.

Injecting into a turbo doesnt seem to work too well. It slows the spool, unless you only inject at high boost.

Hmm, similar to how a draw through blower works then eh? ie, roots blowers like having the cooling gasoline coming through them. Then yea, if you don't have an intercooler, I guess it would work slightly better.

If you ask some of the guys that run pro stuff and alcohol they will tell you that it is extremely corrosive. I just had a conversation with a guy who builds some of the turbo fords that run low 8s and 7s in the quarter and he told me that any kind of alcohol based injected cooler will corrode aluminum and recommended either not using it or if you have to never spray it on blades that are so thin already that the slightest amount of corrosion can cause a catastrophic failure of the turbine. Now do you want to take that chance with a 1000+ in a blower or turbo? I wouldnt. He also said that the fittings on these cars have to be replaced every 2 years aprox due to corrosion. Think about it, this is why you just cant throw e-85 in any vehicle. You have to go stainless with lines and other things need changed. No different with any alky based fuel. I had no idea at all about it so had to ask since I am going single turbo my self and thought a alky set up would help keep it safe but I guess it isnt safe at all when it comes to alky and aluminum. The main thing he said was if you must use it NEVER spray it on the blades directly. Take out blades and normally take out motor too. Too much money to go up over the chance it might happen. Just what I have been told by someone who is a huge forced induction ford guru so dont beat the messenger for those who run it and have no problems,YET.

I hear ya, but its debateable. This method has indeed eaten the blades, but in one scenario, it was with water injection and it was a coarse stream which the blades chopped. It was recommended to use a pressurized stream.

Another scenario was with pure methanol. A couple of guys at turbomustangs.com, used a 50/50 mix and tore everything down and didnt find any problems. So I'll just have to keep an eye on it.

As far as corrosion goes, I havent heard it being a problem. The water dillutes it well. I'm going to use denatured first. Its a good bit less corrosive than methanol.

Also ww fluid is about 30% methanol and I've never had any problems in any of my cars with the pump or leaks. Maybe the factory just used good metal. I don't know.

Oh also the eating of blades has been noted to be a problem more so with turbos, since the turbine spins so much faster. With centrifugal it doesnt seem to be an issue. This would lead me to believe that its not a corrosive problem, its the actual fluid cutting the blades at high speed.

makes sense to me. Like I had said I was passing on the info I learned from people who seem to be up on it. Really never discussed a mix with water just straight and like you said I am sure it would make a huge difference.

something a bit cheaper than alky injection may be the nos intercooler spray kits. anyone run one of these?

I suppose it would be cheaper if you already had nitrous, and only sprayed at the track. But in the long run, the nitrous would be more expensive. I picked up my snow performance kit off ebay for 250 bucks. It works all the time, and I dont need an intercooler, granted i dont have a hot turbo though.

http://www.jegs.com/p/NOS/757028/10002/-1/12043
so anybody runnning these??

You could also run a safe 50 shot all the way down the track. Nitrous cools the intake charge extremely well.