Ask your water alcohol injection questions here.

[Devilsown]

It's fine to put it in the trunk.

You might have issues with not having a check valve.

 

[Devilsown]

Any other questions?

 

[spyderturbo007]

This is how I mounted my pump. It fits perfectly under the spare tire, so I don't loose any trunk space in the already small Spyder trunk. I just drilled 4 holes in the bottom and dropped some bolts through and tightened them from under the car.

Sorry for the shitty camera phone picture.

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[big_d]

So I've come to the point where I'd like to get a little bit more out of my 16g. Currently it's sitting at 20 psi and I'm interested in purchasing a meth kit. This question has come up but I'm going to get some input from you guys. Here's a picture of my maf-t setup. Do you think there is enough room between the throttle body and the maf to put a nozzle in the elbow without conflicting with the maf? Thanks, big_d

 

[Slippi84]

I have a kit but I don't think I want to mount the pump in the engine bay because temps will probably get up there and could decrease the life of the pump but I don't know how much length I have to work with for the feed line. The guy I bought the kit from had it right by where the fuse box would be.

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Anyone mount there's in the fender well where the stock smic goes ?

 

[Iroc_g]

How loud are these pumps? Are we talking A1000 loud or what?

 

[Devilsown]

big_d Yea there is plenty of room for it to fit betwen the maff and the tb. thats where most eveyone puts it unless they are running a LS based maff and relocated it.



Slippi84 I have seen them mounted in the fender area before on dsm, but its pretty common for them to go in the spare tire area.

Iroc_g no there not very loud, you should not be able to hear it with the car running.

 

[romeen]

Chance, I recently set my pressure switch to the lowest point. It is activating at about 5 psi. Now, when it activates I hear a noise coming from the area where the switch is located. Best way I can describe it is a flapping noise similar to a playing card hitting the spokes of a rotating tire.

The system seems to be working fine though. I have no boost leaks. Never heard the noise when I had it set to activate at 12 psi.

Any idea what might be causing this?

I know that 5psi is a pretty low activation point but I do have a deliberate reason for this and won't always run it this way.

Thanks.


Iroc_g, like Chance said the pumps are actually pretty quiet. I don't hear mine whatsoever. It's located in the spare tire well.

 

[Devilsown]

I can't think of anyway it could make that noise, the switch just has a spring on the inside.

 

[thilaksharma]

lets say im running 11.5 A/F at WOT
im getting 360whp on Dyno dynamics at 30psi
1. what size nozzles are suitable for me
2. as for the tuning , should I jst add more fuel or just add more timing to it.

 

[Devilsown]

Lots of varables for nozzle size. 1st is 50/50 mix or 100%. I recomend a 50/50 mix. For that i would start with a 5gph nozzle.

I would first start by trying to add another 1-2psi of boost. your probley got your timing maxed for that. Then your more than likely will be able to remove a slight amount of fuel.

 

[big_d]

So you don't think I will have any problems with the gm maf being that close to the nozzle?

 

[ApexVIII]

do you think a M10 jet is to big for a 16g?

 

[dvldoc]

So you don't think I will have any problems with the gm maf being that close to the nozzle?

If it is at least 3 to 4 inches or so away from the MAF the airflow will keep any alcohol from drifting back on the MAF sensor as it's only spraying under boost.

 

[dvldoc]

do you think a M10 jet is to big for a 16g?

That depends on how much boost your running. You the nozzle size calculator and that will get you in the range you need to be. Plus it can be tweak with the controller or tweaking the pump pressure.

 

[imagine3163]

Hey guys, I am a total methanol injection noob so I am sorry for this dumb question. What do I do with the blue tabs in the pictures? Am I supposed to simply pull them off with pliers or something? The only reason I am asking is because they are on there pretty good so I don't want to break anything if I don't have to. Thanks everyone!

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[brisvr4]

If you push in on the grey collar ( push towards the pump ) whilst pulling on the blue part it will come apart.
Hope that made some kind of sense!

 

[imagine3163]

That makes perfect sense. Thank you so much!

 

[Devilsown]

No worries your not the first to ask.

 

[19BLACKGST98]

I ordered the Devils own kit a few months back and just got it on the car last night. Wasnt a hard install at all. My car is currently not tuned so I havent actually got to try the kit out yet though. The person that does the work on my car is really busy and doesnt know when he will be able to get me some time on the dyno for tuning. Our local forum is having a track day on May 1st so im hurting for a tune right now....

Anyways I started calling other shops trying to get tunned using Eprom chips and I talked to a guy that told me I wasted my money buying a meth kit. I asked him why and he said with a properly tuned car water/meth injection will only hurt your power unless you dump in enough meth to be using it as actual fuel. I was just wondering why a known tuner would say somthing like that when there is proof all over the place. He said he tested it on his car and it made no diffrence. Obviously if you can only run 21 psi before meth and 30 psi with meth you would have to see some increase in power
Needless to say I told him to have a nice day and I will not need his services.

 

[19BLACKGST98]

That depends on how much boost your running. You the nozzle size calculator and that will get you in the range you need to be. Plus it can be tweak with the controller or tweaking the pump pressure.

I must have missed this so could you point me to this nozzle size calculator please?

EDIT: Also in the instructions it says not to hit the rev limiter while running the meth inj kit because that is causing fuel cut. What about using two step? Isnt that basically the same thing...I will be building boost on the line which will cause the system to start (unless I obviously started the sytem high then the amount of boost that I can build during the two step?)

EDIT EDIT: Sorry guys I keep thinking of things that ive been meaning to ask. I was just wondering if it is ok to use the peak 0 degrees Walmart windsheild wiper fluid because they do not sell 20 below zero washer fluid in the state of Texas anymore due to some Polution bull shit or somthing like that. Also when setting up your controller why do the instructions say to set the first dial to 1/4 of your max boost and the other dial higher? Why dont you just drive the car and when it gets to the point that it is knocking start the Meth 1 PSI before that? (it would save you a shit load of methonal over time)

 

[dsm-onster]

Yes, if running pure meth, you need to run 3-4 times more than running water, to raise octane in the combustion chamber a significant amount (like from 93 to 99). Whereas just water at about 15%-20% of the fuel flow effectively raise the octane to race gas levels because of slowing the burn rate by removing heat from the flame front. Maybe that is what he means?

If he really saw no gains injecting a smaller amount of meth, then he never pushed a motor on pump gas. The intake pipe, intake manifold, and backside of the valve cover is actually cold after my meth injection, which at the time wasn't enough flow to significantly alter the total octane of the fuel. But a cold aircharge ALWAYS helps, else what's a big intercooler for?

 

[19BLACKGST98]

I think what he did was tuned the car before the meth injection was installed. Then installed it and did no other changes to the tune...threw it on the dyno and saw no power gains. I know he was using 100% meth and was only using one nozzle so he was not spraying enough for it to be used as fuel.
I was under the impression that water/meth injection would not help you when you are running race fuel (c16 in my case)....is that not true...do you use it the exact same way as you do with 93 or do you have to change the settings (do you have to change your mixture?? More meth or more water? Thanks for all the help.

 

[19BLACKGST98]

I think what he did was tuned the car before the meth injection was installed. Then installed it and did no other changes to the tune...threw it on the dyno and saw no power gains. I know he was using 100% meth and was only using one nozzle so he was not spraying enough for it to be used as fuel.
I was under the impression that water/meth injection would not help you when you are running race fuel (c16 in my case)....is that not true...do you use it the exact same way as you do with 93 or do you have to change the settings (do you have to change your mixture?? More meth or more water? Thanks for all the help.

 

[dsm-onster]

With meth injection, you still get benefits of denser aircharge than what an intercooler can give you alone.

With water injection, the droplets don't break up enough to cool as well and the cooling benefits are good but not so good as to see a huge difference on the dyno. Pure water shines in the combustion chamber where it can slow the burn rate. But then the race gas already is there to slow the rate and remove the chance of detonation. Besides, if you inject enough water to render enough droplet surface area that will allow water to match alcohol in rate of heat removal, then you'll bog your motor. So pure water? No, race gas would render it almost useless. But who runs race gas all the time .

Now meth injection? If it we injected in proper amounts, yes you would still see goos results on a dyno even with race gas. I mean who doesn't like sub ambient temps and what $120000000 intercooler kit can match the results of below ambient temps .

If this guy really jsut added meth injection with out a retune and declared that meth injection is useless, then he is NOT a good tuner. A good tuner understands the concepts than make an internal combustion motor more efficient. And clearly his reputation is a bit inflated. I'll wager he did this with an n/a motor too .