For those on the brink of WATER INJ..........

[EXSC]

If you read this, never mind.

Ok, here is my take on Water-injection:
After doing extensive research and bugging countless people, who actually use various water-inj systems, the best way to do it is after the blower. The proper pump is one that puts out at least 85psi with minimal drop-off in pressure. A high-pressure pump is required to atomize the H2O properly. The better the atomization, the more effective it will be in cooling down the charge before it enters the cylinder head. The poorer the atomization, the more space(water and fuel mix) is being used up by the H20. Therefore robbing performance. The idea is for the water to completely evaporate before it enters the combustion chambers. This is why the Aquamist system is so successful in Europe on Turbo and Supercharged cars.

Now the Spearco unit looks good, BUT it uses a much weaker pump that cannot keep a steady high pressure for optimum atomization. When I called Spearco, the told me "mounting the sprayer nozzle after the throttle body is definitely not recommended"

I would also like to mention here that a certain person known by myself, Bill at ZYDYNE and Larry at ENDYN, seriously F*CKED their motor by not evaluating the water-inj system they had and poorly positioned the nozzle.

On the other side, kameleon has had success but kam's nozzle is before the throttle-body and the charger is spinning 10psi creating plenty of heat to completely evaporate the H20 (so we hope).

So, beware and be careful with H20, we can drink it but our engines can't!

BTW, as I have mentioned in an earlier post, I have purchased the aquamist system (with the JR logo). I hope to button up my car soon and head down to RELIABLE and see if there are any gains. I will post my dyno runs for all of us to see.

AL

[zip]

So are you saying that the Spearco unit isn't up to par with the aquamist system?

I would also like to mention here that a certain person known by myself, Bill at ZYDYNE and Larry at ENDYN, seriously F*CKED their motor by not evaluating the water-inj system they had and poorly positioned the nozzle.

What is the correct positioning of the nozzle? What other precautions must be taken that are not already apparent in the instructions?

Sorry for all the questions but I'm contemplating on getting the Spearco unit soon, but I may be swayed to go into another direction otherwise.

[EXSC]

ZIP, you and alot of members here have quality set-ups. I really admire your ride. Your whole car is top notch. If you have covered your basics with fuel and your ready to take the dive with water, I would strongly suggest the Aquamist. BTW, did you see the blower that was sent to ENDYN in his posts? You know, the one that "was in the worst shape he has ever seen", did you notice the protective film comming off the blower fins? Water aids that process. Once that happens, the blower gets even hotter, not to mention the particles of that film have to go through your motor.

No Thanx

[zip]

Hmmm...well I guess I'll wait on the H2O and upgrade my fuel requirements first. Thank goodness I can dial down the boost. I only get detonation above 8psi.

[EXSC]

Good choice

[green95gsr]

I ordered the Spearco Unit already. Maybe I was too hasty? I'm a little surprised though that a company like Spearco whose reputation for good products is high, would market a system that will f**k up your car! I spoke with the guys at the place where I orderd it and they say they sell lots of them. If they are not useable for our type of application, what are they good for? I'm sure that Aquamist and JR make and sell good products too, but it is true that a lot of these types of products can be a nd often are priced very high in relation to true cost. The Spearco unit might be a good buy not because it's crappy but because it is competitively priced? Another question, isn't the spray nozzle configuration a big factor in the shape of the spray? Don't forget, the Spearco system is pressurized already by the blower. The pressure required to inject the water would only need to be a differential ammount, is this correct?
I sure don't want to damage my motor but I also don't want to overlook a possible good, cost effective method of cooling the charge. This might no be a good comparison, but I can get a $3 fuel press gauge that is totally as effective as somebody else's $100 gauge. Ditto for Boost gauges and other things too (wheels come to mind). I appreciate the good info and input but I would like to hear from more people before I give up on any option.

Manuel

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'96 GSR, JRSC 6 psi, Greddy Sp, Apex 4-2-1, Home made CAI w/K&N, Ground controls coil overs, Eibach, AGX, DC short shifter, more stuff on the way....

[EXSC]

Manuel,

Lets say you do get an optimum spray pattern from your unit, what about all the water going through your blower? That water is being evaporated by comming into contact with ultra hot blower fins. After constant exposure to the water, that protective film on the fins wears, creating even more heat. Also, dont forget the turbulent "S" neck the water will have to go through. I cant imagine how much moisture will be on the sides of that intake tube before the blower!

Hey, here is a thought, if you haven't done the catch can mod, not only will you have oil vapors comming through your intake but add a little unatomized H2O and pieces of blower film, and WAHLA, can u say REBUILD?!

I would not take that chance

I would also like to ask KAMELEON to take a good look at the intake tracks and blower fins after running the SPEARCO unit w/ 10psi. I also wonder if there was a catch can set-up. I feel bad for anyone who's motor takes a crap, but this is also a possible learning experience.

If your out there KAM, let us know.

THX

[JRCivic]

EXSC...

Good post... and good research.

Yes, for all of you JRSC guys, ONLY use the Aquamist or JR kit. All others that I am aware of are sub-standard for our requirements.

True, water injection kits are expensive... but so is a NEW MOTOR !!!


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'93 Civic Si H/B with B18C1, JRSC @ 8psi
Best 1320: 12.68 at 110 mph

[EXSC]

Now if someone could get a good price on an Auquamist set-up for all my fellow blowers. Maybe this will be Jim's new buy-in. Don't forget:

"Good sh*t is not cheap and cheap sh*t is exactly that"

[green95gsr]

EXSC, you are 100% correct. I called Spearco and they told me that their system *is not recommended* for a supercharger like the JRSC. It has to do with the design of the nozzle. Apparently it will work fine with a turbo or a centrifugal blower like a Paxton. The nozzle must be placed *before* the TB. In this case, you are quite correct and the potential for damage is greater than the potential benefits.

Thanks

Manuel

By the way, I'll be returning the un-opened package when it arrives. Too bad, I was looking forward to installing it

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'96 GSR, JRSC 6 psi, Greddy Sp, Apex 4-2-1, Home made CAI w/K&N, Ground controls coil overs, Eibach, AGX, DC short shifter, more stuff on the way....