The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

water & meth injection results

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

mastadogg2

15+ Year Contributor
366
7
Jun 11, 2003
harrisburg, Pennsylvania
Well, this has got to be one of the easiest mods ive ever done, and does it ever pay for itself. I couldnt run any more then 15psi before on my evo3 16g on 92oct without knock, now with 92oct + -20 below temp washer fluid i can run 21-22psi flowing around 38lb/min.

Its night and day with injection. Heres some logs below to show the results.

Kit used: Devilsown (alcohol-injection.com)
Standard. 150psi shurflo pump, M5 nozzle @ 180psi.
Boost activated via a pressure switch @6psi

You must be logged in to view this image or video.
 
All I see are squigglies LOL. How hard was it to tune? Did you only get the boost activated switch instead of the progressive?
 
pretty easy. I didnt really have to do much of anything except adjust my fuel where the nozzle started spraying. Im already pushing my setup really far now, so i didnt lean it out to much more and kept timing curve below 14deg.
 
elfroggo said:
All I see are squigglies LOL. How hard was it to tune? Did you only get the boost activated switch instead of the progressive?

I got everything minus the progressive switch. I dont think its really needed. the pressure switch works fine.

Also just look at the yellow/orangish color line, that indicates knock.

Lowered egt's
Lowered Intake temps
Allowed for way more power.

Its a damn good investment! I got 12gal of -20 fluid for 12 bux.
you can probably get away with straight distilled water to.

Good thing about using just water, is you could use your sink and fill up a pot,
boil it on the stove to boiling point, so it distills it. then let it cool off and use it.

I havent tried straight water yet tho..
 
Nice .4 counts with washer fluid injection, and 4.9 counts with out...try water/meth injection, you can run even more boost, and the meth ups the octane count of pump gas.
Just my .02:)

Dustin
 
mastadogg2 said:
I havent tried straight water yet tho..

Don't bother. Methanol/alcohol is way more effective at knock prevention/running higher boost than water is. I'm running 100% denatured alcohol and I'm able to run 25+ psi on 91 octane pump gas, and without the injection I could only run about 18. Water barely helped at all. Water is more if you don't have a good FMIC or still on the stock SMIC.
 
Hmm, im going to have a similer setup to you, except I have a GM MAFT, and a XACT flywheel, my profile say 2.5" exhaust but I will be moveing up to 3" Also I was planning on the water injection. Still not sure which kit I want to go with. Oh and I also have a FMIC. and im going to get a set of HKS 264 cams.

My goal is to make it into the 11's with that setup on 93 pump. Seem likely on a engine with like 130ish compression LOL..?
 
1Gs should be serviced at 133psi for compression, your rings are probably shot. Try a wet compression if the compression rises more the 15psi in each cyl. then your rings need to be replaced. Meth/water is a better knock supresant then water, or washer fluid.

Dustin
 
fourreGsixty3 said:
1Gs should be serviced at 133psi for compression, your rings are probably shot. Try a wet compression if the compression rises more the 15psi in each cyl. then your rings need to be replaced. Meth/water is a better knock supresant then water, or washer fluid.

Dustin

I think your confused man.. 2g's service limit is 133 not 1g's. 1g is 121psi. perfect compression on a 1g is 164psi.

My compression is 140-145across, and im running 70-90mph times in 1.98 seconds. Those of you with DSMLink know thats hauling ass. Ive seen 1g's with 105 across run down the track and run 11's...

Also for the person above that mentioned knock counts, those are not counts, those are degrees of timing being pulled. I cant remember the conversion but, it goes something like this....... 1degree = 5-7counts, etc..

But ya, whoever was spectical about meth/water injection.. dont be any longer, its a badass mod! its so effective its unbelievable.
 
fourreGsixty3 said:
better knock supresant then water, or washer fluid.

Dustin

washer fluid is half meth half water...... -20 is 40% meth, 58% water, 1% blue dye, 1% pump lubricant
 
Anyone here ever test IATs using just plain water injection? I think its the evaporation time of the meth that really does a good cooling job, though water alone has over twice the latent heat of evaporation value of methanol, which means it has the ability to absorb thermal energy very very well. Water being at 970btu/lb, and meth at 472btu/lb i believe.
 
1SloColt said:
Anyone here ever test IATs using just plain water injection? I think its the evaporation time of the meth that really does a good cooling job, though water alone has over twice the latent heat of evaporation value of methanol, which means it has the ability to absorb thermal energy very very well. Water being at 970btu/lb, and meth at 472btu/lb i believe.

I havent, Also when I added a stronger mix of more water then meth, it seemed to work just fine. Im just going to keep running the washer fluid, its only $1.00 a gallon, and 2 gallons will last you a good full 2hrs of constant boost
 
I've been running 150psi/M7 -20deg fluid for about 2 months now. Awsome mod.. Has anyone used that red -50deg RV fluid. I saw some at NAPA & Walmart last week, but couldn't find the Alch%.
 
mastadogg2 said:
I think your confused man.. 2g's service limit is 133 not 1g's. 1g is 121psi
Damn I get those 2 confused.
Well as for washer fluid maybe its just the percentage of water, and meth.
So those are degree's of knock...well that makes the difference even better. Thats like 5> counts vs 25 counts.

Dustin
 
I am interested in this mod, never really looked at or thought about it until now. how much is it for a kit, what would be best, and where are the best places to look.
also, what are the general performance gains seen with these.
thank you so much.
 
exiletalon said:
I am interested in this mod, never really looked at or thought about it until now. how much is it for a kit, what would be best, and where are the best places to look.
also, what are the general performance gains seen with these.
thank you so much.

Email this guy; [email protected] for pricing on the same kit I got. If you do groupbuy or something similar they would lower prices alot. But I paid $190 for my kit.

There website is www.alcohol-injection.com & you can sign up on there forum with any questions you have. I had experienced excellent customer service and shipping was very fast and well packaged.

Big gains. It allows you to increase your boost, So significant gains.
 
fourreGsixty3 said:
Damn I get those 2 confused.
Well as for washer fluid maybe its just the percentage of water, and meth.
So those are degree's of knock...well that makes the difference even better. Thats like 5> counts vs 25 counts.

Dustin

No biggie. Sometimes I get evo compression confused with 2g compression to, so im just as bad. LOL

Ya man, the injection made a hell of a difference. Only thing I have to figure out now is, how im going to get rid of the fireballs im shooting inbetween shifts. The first night out with the injection I was so happy, I couldnt believe how it transformed the cars performance. And its definitely a money saver, when you can run lower octane fuel and get race gas results :thumb:
 
Heres a testament to meth injection...
Runing no KS for going on 18 months (with meth injection). Have put the engine through all kinds of stuff:
Always on 94 octane:

1.14b at 25 psi, 23 deg timing,450's leaned out to -15%
2.New setup with 20g and 650's, blew the non-stock but crappy headgasket after running 28 psi a couple of times. Had the head off, no signs of detonation or damage.

Of course, YMMV!
 
LaN- said:
can you take pictures of your install? How easy was it to setup?

Thanks

sure; it was pretty simple. Altho I took my front bumper off to mount my pump.
I am in process of switching to a 6 gallon tank in the trunk now :) 3qts dont last long.

You must be logged in to view this image or video.


You must be logged in to view this image or video.


You must be logged in to view this image or video.


You must be logged in to view this image or video.
 
Looks great Tom, I will be going with this kit, but I will be getting the 6gal. tank in the rear, and custom fitting it to the spare tire spot (on FWDs this is dropped down unlike the AWD ones)

Dustin
 
Nice! Make sure you get everything at once, im sure they will cut you some slack on $ for the tank & etc. Ya, 2g's are alot nicer in the trunk, im going to have to set my tank ontop but i never use trunk anyways

Tom
 
It's a very, very good mod.. 6 gallons is major overkill. I have a 1 gallon tank, and it lasts quite some time on a 600cc/M7 injector (to small). I can run all day at the track without worries...

I personaly don't like that pump/tank anywhere near the engine heat. I chose under the spare tire in the back of the car (mounted to the spare tire bracket) for the shurflow pump, and the back of the driverside rear seat for the 1gallon tank (gravity feed). It's good to have the tank above the pump.
 
I hear that these systems are iffy, and can get dangerous real quick, any insight on this?
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

Back
Top