rob,

when u start spraying does it affect ur a/f ratio...do u need to retune ur pe curve for it?
or do u just add timing to it and let it go?
lastly does ur water injection go up linearly like the maf or is it exponential?

Thanks,

Dan

 

The Impala wasn't IC so i used both WI and race gas to get the most out of it. With the Cobalt, just WI looks to be fine.

 

Yes, it does affect the AFR and requires minor changes to keep it at peak HP AFR. The system is linear.

 

FAST06SS got what i was trying to say about using the MAF instead of the boost. So my question now is where do i get this module to convert to 0 to 5V???

 

Which controller do you use? The cooling mist controller can be controlled by either boost or a 0-5V source.

 

I use the Snowperformance.net set-up which is MAF based and linear.

 

Rob is yours the Stage 2 GM MAF setup?

 

I think he's running an lt1 maf.... I just happen to have one left over from a vette I built... so I think I'll be running that too if there aren't anyproblems.

 

Dan,
Yes, i'm using the Stage 2 GM MAF kit

 

Couple of information points.

The boost rise characteristics of a positive displacement blower (like your Eatons, or a twin screw Lysholm/Kenne Bell etc) are very steep at lower rpms and taper at higher rpms vs. a turbo or centrifugal supercharger which has a very progressive rise in boost.

The MAF signal is a smoother rise than the boost signal when a positive displacement blower is usedd and the MAF signal more closely represents the engines need for water-methanol. If you use a boost-based controller, it can usually be dialed in, but it can take a lot more time and effort to do so. This is why we developed a MAF based kit. (It also allows a progressive injection to be used on a naturally aspirated car very easily)

The output MAF signal on most GMs is a frequency (Hz) signal, not a 0-5V signal, so a controller has to have our translator to change the signal or it won't work. That translator is included in our GM MAF kits. There are also different ranges of frequencies on different models and years of GM MAFs, FYI, so we have different translators, etc.

 

do u make one that is plug and play into the maf harness? If so that would rock

 

yeah... I don't really want to cut up my harness... especially in a spot where it could see water.

 

Here we go again, plug and play sissys

It's cake guys, the maff sensor harness runs right below the PCM for the cobalt guys and is cake to get to. How hard is it to splice wires?

You will NOT see a plug and play system for WI since every car and install could be slightly different. You will see what i mean when i post some pics later.
Rob

 

Screw the Plug and Play, I don't give a **** if it means that much better cooling temps. I'll solder wires back together if needed. I am now definitely saving for this Snow performance kit.

 

ill just have to make adapter kits for the aforementioned sissies lol

 

I"m definately gonna use it too... I really don't care about plug and play... just would be an easier install... but to solder in 1 or 2 wires I can deal with it... for the gains oh yeah

 

Question Rob, do you plan on spraying after the charger as well to see the differance?
or are you only going to spray before the charger,

 

Rob, I cant wait to see the gains so you can show the haters. I just got my new system all worked out so that it has 4 seperate nozzles drilled into my intake manifold. Drilling that thing out was such a bitch. I know that last part has nothing to do with you but I am just soo excited.
Here is what it looks like

 

Thats a lot of washer fluid going in! Looks cool, good luck!

 

So where can i get a GM MAF translator? This is the kit that i have

http://www.enginerunup.com/turbo-blo...it/prod_39.php

 

No, we don't make it plug and play, because like Rob said - each installation, even on identical cars, can be very different, let alone different year changes, etc. so it would just turn into a very large headache very quickly. Not to say we aren't interested in maybe getting some connectors to allow people to make it "more" plug and play, just that we aren't there yet.

We have the GM MAF translators - PM me and I can give details. Don't want to make this a commercial.