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Discussion Starter · #1 ·
Here is a very interesting concept that a very small number of people are trying these days, most of them having great success: Spraying water/methanol directly into the turbo to cool the air AS it is heated by the compressor wheel, making it dramatically more efficient, lowering outlet temps, and increasing mass flow and power. Some report intake air temps LOWER than ambient, which allows the user to completely remove the intercooler, and plumb the turbo outlet directly into the intake.

Many cars in the past would draw gasoline misted through a carburetor directly into the turbo with no harm to the blades. IJ (Ian) did this in the past; plus I've heard that this was the stock configuration on a 1980 turbo Trans-Am.

Here are some links and quotes I've found searching the net. Discuss!

http://www.supraforums.com/forum/showpost.php?p=6846492&postcount=5
(^^^Not risky at all. I have 3 nozzles in my meth setup. One fires directly into the turbo, two larger ones pre- throttle body. NO issues what so ever. However, I use pure meth.
Go for it, your AIT temps will thank you! Ive had my IC have frost in the dead summer at night after a long pull. BTW, I am fairly confident I could get away with my boost level(40psi with an 80mm turbo) with 100 and my meth setup. I run 110 though for added peice of mind.")
http://www.aquamist.co.uk/phpBB2/viewtopic.php?t=267
http://www.alcohol-injection.com/forum/technical-questions/pre-turbo-safe-1629.html
http://www.dieselbombers.com/cummins-corner/4634-pre-turbo-water-meth.html
http://www.alcohol-injection.com/forum/diesel-engines/pre-turbo-nozzle-placement-1455.html
http://www.cumminsforum.com/forum/g...e/108850-ill-effects-pre-turbo-injection.html



 

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I still have an old M freeze kit never actually put it to use http://www.andersonfordmotorsport.com/mr-freeze.html

Its pretty big in the mustang world, sprays meth directly at the compressor and the blades do the atomization. pitting and blade degradation isn't my concern. its having some water residue left back into the intercooler over time and then one day hydrolocking the motor. I just cant imagine the compressor atomizing it well enough.

Btw pleeeeeeeeeeeeeeeeeeeeease dyno test your spool valve.
 

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To the OP, notice I run 100% meth since I am spraying it directly into the turbo.

Boostage, I hope you have better luck with that kit than we ever did. All it ever did for a buddies car was make a mess since it didnt get compressed enough to be a fine mist but was more like a super soaker water gun. That and the top would pop off after a run. Maybe he got a bad kit, I have no clue but I know I would never recommend that particular kit to anyone
 

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Discussion Starter · #4 ·
To the OP, notice I run 100% meth since I am spraying it directly into the turbo.
Thanks for your info. Perhaps you could give us a few more details, like which nozzle you are using, which pump, how close, and what position in front of the turbo? Also, if you are getting frost on your IC because of super low outlet temps, why not eliminate it? Did you figure 100% meth is better for pre-turbo injection compared to a 50/50 water mix?
 

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To the OP, notice I run 100% meth since I am spraying it directly into the turbo.

Boostage, I hope you have better luck with that kit than we ever did. All it ever did for a buddies car was make a mess since it didnt get compressed enough to be a fine mist but was more like a super soaker water gun. That and the top would pop off after a run. Maybe he got a bad kit, I have no clue but I know I would never recommend that particular kit to anyone
It comes with a medium nozzle, but there are 4 other nozzles ranging from much smaller to much bigger. you had a nozzle too big for your motor. I tested it on my old honda, but not on the supra motor
 

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Thanks for your info. Perhaps you could give us a few more details, like which nozzle you are using, which pump, how close, and what position in front of the turbo? Also, if you are getting frost on your IC because of super low outlet temps, why not eliminate it? Did you figure 100% meth is better for pre-turbo injection compared to a 50/50 water mix?
*Its a m10 nozzle(IIRC)
*I use this kit with the 150psi pump(although I am going to be upgrading to the 250psi pump one I add even more meth) https://www.alcoholinjectionsystems.com/product_info.php?products_id=102
*Its about 4inches from the turbo
*Sprays directly into the center of the turbo

I stayed with the IC since it takes quite sometime for the IC to frost over. My AIT stays steady to 40psi in high gear, on the long pull of highgear it will creap up a little. After several passes the IC is now cold due to all the meth. The temp goes up, then back down if that makes any sense after a few passes. Plus, in the dead heat in the middle of the day the IC helps a lot. I have thought about goign with a water/air IC lately though
 

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Discussion Starter · #7 ·
*Its a m10 nozzle(IIRC)
*I use this kit with the 150psi pump(although I am going to be upgrading to the 250psi pump one I add even more meth) https://www.alcoholinjectionsystems.com/product_info.php?products_id=102
*Its about 4inches from the turbo
*Sprays directly into the center of the turbo
Is the nozzle tapped into the side of your intake pipe? Or is it firing toward the blades somehow like in the top picture above?

Are you running braided AN lines? Just wondering where to buy braided lines designed for the usual methanol/water fittings.

How do you choose which nozzle is suitable for pre-turbo?
 

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My system uses a nozzle that screws into a nickle plated 90deg elbow. I used another strait fitting with a locking ring to set the distance it protrudes into the intake pipe.
 

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My system uses a nozzle that screws into a nickle plated 90deg elbow. I used another strait fitting with a locking ring to set the distance it protrudes into the intake pipe.
I am working on installing a pre-turbo injector right now and this is one of the routs I was thinking of. Do you have any photos showing the injector in the intake?

How did you determine that 4" was the right distance?
 

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Just got lucky I 'spose. I did watch it on the dyno to make sure it was where it needed to be and I guess I got lucky and it was spot on. Ill snap a picture later for you
 

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Discussion Starter · #12 ·

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Sorry I got a few of the lines from AIS, but IMO just make your own. Its not hard and saves some coin.
 

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slither ... Are you using AIS Stage 2 Progressive Water Methanol Injection Controller with your meth system? ... If so would you share some info about it? ... Is this Progressive Water Methanol Injection Controller sited up using special software? ... What is the middle knob " TUNE " for ?
 

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slither ... Are you using AIS Stage 2 Progressive Water Methanol Injection Controller with your meth system? ... If so would you share some info about it? ... Is this Progressive Water Methanol Injection Controller sited up using special software? ... What is the middle knob " TUNE " for ?
Yes Im using the stage 2. I think you can get away with using the stage 1 though. Id set it up to come on full blast at whatever RPM your tuner(or you) feel comfortable with and go from there. Just make sure its setup to where lets say you hit 15psi at 3500 in 3rd gear vs 3200 in 4th gear that the tune is setup to add the additional fuel at 3200.
The tune knob is how you set the max flow of the pump(its more for fine tuning)
 

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Yes Im using the stage 2. I think you can get away with using the stage 1 though. Id set it up to come on full blast at whatever RPM your tuner(or you) feel comfortable with and go from there. Just make sure its setup to where lets say you hit 15psi at 3500 in 3rd gear vs 3200 in 4th gear that the tune is setup to add the additional fuel at 3200.
The tune knob is how you set the max flow of the pump(its more for fine tuning)
Sound Great ... Is there a connection for the tank level sensor so the controller will give warning light or warning signal? ... I just want to compare this controller to Coolingmist CMGS controller http://www.coolingmist.com/detailmain.aspx?pid=cmgs ... They both have same price. I already have Aquamist S1 WI kit (basic Kit) and I just need a good Progressive Water Methanol Injection Controller and tank level sensor.
 

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I havnt checked the site in a while, but that one you linked has a built in boost gauge. Wouldnt work for me since I go over 30psi but its a cool feature IMO.
 

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i ran pre-turbo meth injection on another car of mine with great success and have a couple other buddies running pre-turbo injection on there cars aswell. Im planning on doing it on the supra when I go single here in a few weeks
 

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Discussion Starter · #20 ·
i ran pre-turbo meth injection on another car of mine with great success and have a couple other buddies running pre-turbo injection on there cars aswell. Im planning on doing it on the supra when I go single here in a few weeks
Did you run just meth or 50%/50% meth/water?
 
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