Hey everyone I have been researching a lot into water/injection kits after reading howard colemans making a case for the rotary thread. I would of course like to go single turbo but right now with paying for school I dont see that happening soon. I would however like to run water or methonal injection to help my motor from detonating but im not sure if it would help with the twins. Any help or ideas would be great Im just trying to as many precautions as possible to help my engine live longer. My mods are in the sig. Thanks

 

Water/meth injection would work perfectly fine with twins (I've got it with my BNR's). As you may well know the stock twins make a LOT of heat, so anything you can do to combat this is a good thing. A/I is an excellent step in that direction. You don't necessarily *need* to go to the extent that Howard went to (though what he's done is pretty badass!) to get good results.

You will also have people who believe that adding additional systems (like A/I) to protect your system is just adding another point of failure to an already complicated mess. Personally I don't feel this way, nor do I think A/I is just a "bandaid." If you're looking for a relatively inexpensive way to safeguard against pre-det than I'd say go for it! (just BE SURE to never let your reservior get too low..)

 

the stock twins are going to max out at about 12-13 psi. the stock I/C will max out at 10 psi . by adding meth you will have cooler intake temps and be able to run at max boost longer and safer. so adding meth will help for safety reasons.

Jeff

 

awesome thanks for the input guys I think I will pick up a kit soon. Does anyone have any suggestion on what kit to get or does it really matter?

 

i do agree with posts 2 & 3... you might check out Coolingmist. they have alot of systems on Fds and are primarily, but not exclusively, water. CM offers the pump/nozzle ramp adjustable as well as a solenoid/injector setup.

hc

 

Also try the AEM system. It's the one i have and it works great

 

Bump for more info. Anyone have dyno graphs on a water injected twin setup? I'm all ears.

 

I can post up mine when I get home, though I've got an "issue" with my solenoids (primary doesn't want to boost over 10psi, period), so it will probably look more like a singles power curve..

I've got the 325whp (pre-A/I) @ 1.1bar and the 340whp (post-A/I) @ 1.2bar printouts at home.

~ fwiw I'm running the Aquamist 1S kit with 50/50 meth/water for mixture. The A/I is set to kick in at right about .9bar.

 

Are you still on a smic Levi? I'm sure those numbers will be higher with your custom v mount.

 

if you are going to just inject water you will find that hp should remain approx unchanged. the primary objectives using water as an AI injectant are a cooler knockfree combustion and a much cleaner engine interior.

so i wouldn't be looking for an exciting dyno sheet.

in order to make more hp w water you need to "tune up." that is, turn up the boost and do some tuning. there is an attendant risk in tuning up which is if the AI system malfunctions you end up lean and perhaps damage your motor. this is not to say you shouldn't do it, but if you do you should know exactly what you are doing.

generally on this board, memebers that are interested in having it all (and you can have it all) run either partial or 100% methanol and do turn up the boost.

hc

 

Yeah I am not looking for more power really I would just like to protect my motor. I do plan on getting it tuned also before I start to use it. All this info is great guys thanks and if you have any more keep it comin

 

No I'm not still on the SMIC. I had the Re:worx/PWR kit installed last monday. I stuck pics up in BAW and the "engine bay pics" threads, but the car was dirty as crap from the drive down (had to stop and clean my headlights 3-4 times on the 2 hour drive because all the crud/salt on the road was making them ineffective) and all that jazz..

The numbers are actually pretty good imo (keep in mind the dyno I get tuned on shows 15-18% lower numbers than a Dynojet/pack. So if/when I hop on a Dyno when I get back to Va I expect 390-401 whp, which ain't too shabby on stock ports ^_^). We would have pushed higher but I was hitting at 85% IDC. May possibly swap my 850cc Secondaries for 1300's and give it another go later on down the road though...

 

Those are excellent numbers indeed.

 

Will this work out??

The price seems really affordable w/ a lifetime warranty. I want to just run water.

http://www.coolingmist.com/detailmain.aspx?pid=Cool150

 

I dynoed my car last year with the 50% meth. and water injection. It lost 3-4 HP with the meth/water inj, but on the butt dyno I could definately feel it was faster when I turned off the injection. I have the dyno sheets, see attachment. And I would lean out the PFC alittle when I turned on the meth/water injection so that I got the same AFR on my wideband. I tested all this before so I knew how much fuel to add or remove on the dyno to get the same AFR.

The injection did make the intake temps lower, and knock lower. I never had problems without the injection so I chose to remove it and save the weight and have it make more power without it.

 

I'm not sure why you say this, or maybe you are talking about with the stock fuel system, but this statement alone is far from the truth, I just wanted to clear that up since so many people end up thinking you can't run much boost on the stock turbos (of course you need the supporting mods).

 

+1 a stock FD's turbos are working a little harder than that to give you 10psi, with intake, exhaust and intercooler there is a lot less restriction so the turbo's are not working as hard.

 

Perhaps he meant sequentially. And turning up the boost any further would be more effective in a non sequential mode. Still have a question a couple posts up.

 

Well no thats not true either, I have run the same amount of boost sequential and non sequential. Non sequential doesnt make much more power, its the additional boost that makes a huge power difference, sequential or non seq.

 

Peter from Rice Racing in Australia is the gun water injection ace.

A street driven 13B fitted with his WI system has output 600rwhp on pump fuel.

http://www.riceracing.com.au/water-injection.htm

 

Will this work out??

"The price seems really affordable w/ a lifetime warranty. I want to just run water.

http://www.coolingmist.com/detailmain.aspx?pid=Cool150"


Randy,

CM makes an excellent AI product. i think you would be alot better off to move up one click and spend an extra $100 to get the variable delivery controller kit at $320.

without the variable delivery you are going to be hitting the motor w alot of water at lower boost/rpm and flooding it.... or to avoid this using a small inefective delivery nozzle.

the extra 100 allows you to twist a dial and ramp the delivery starting at a particular boost level.

hc

 

thank you howard.