Snow Performance Kit issues

[blown98gt]

I have the stage 2 boost controller kit. i'm running a procharger d1sc 8 rib conversion and a 2.90 rr pulley. (built motor and such)

my problem is this. while not in boost and while the car is running it is creating a vacuum and sucking the meth/water mix into the intake and down into the MAF. this has ruined my 90mm lightning MAF. when i say sucking i mean when ken (tuner) pulled off my MAF it had huge droplets of the mix all over the MAF and all. As you can imagine this is a huge issues since it jacked my MAF up.

i'm upgrading to a 3'' blow-thru tube but i prefer not to ruin this one.. anyone have this issue or heard of this issue and have any thoughts on a solution. (this caused many headaches while ken was tuning the car)

i've thought about getting a plenum spacer or something and using it instead of the intake pipe but if it's creating a vacuum in the intank i'm afraid that it'll just do the same thing and pull drops of water/meth mix into the engine.

 

[Magic]

Where is the injection nozzle located? Before the blower or after the blower before the throttle body?

What might be happening is, it(the motor) is just sucking out the excess water in the line after the pump has shut off...

 

[blown98gt]

it's before the throttle body, that is where the kit said to place it. i am sure that is what is happening it's just sucking out the excess while it's not in boost. it's set to start spraying at 3 lbs up to 30 although i'm only seeing about 23-24 lbs of boost. it should be shutting off.

 

[Magic]

it's before the throttle body, that is where the kit said to place it. i am sure that is what is happening it's just sucking out the excess while it's not in boost. it's set to start spraying at 3 lbs up to 30 although i'm only seeing about 23-24 lbs of boost. it should be shutting off.

if you are seeing 23-24, then have the pump set to that end psi as well...

 

[blown98gt]

set the pump? nooooo i wasn't aware that there is a way to set the pump for that much boost...

the only settings that i could find were on the little boost controller which after talking to my tuner is set to 25 lbs of boost as the end point. i don't think that is what is causing the issue. the excess mix in the line from the pump to the jet is getting sucked out.

 

[Magic]

set the pump? nooooo i wasn't aware that there is a way to set the pump for that much boost...

the only settings that i could find were on the little boost controller which after talking to my tuner is set to 25 lbs of boost as the end point. i don't think that is what is causing the issue. the excess mix in the line from the pump to the jet is getting sucked out.

Sorry I meant to say to set the controller thing for the pump to go on and off.

I recall some tuner (I forget where I read it) saying how he liked to set these Snow kits in a certain way...come on at X psi boost, and turn off at around 1-2psi before max boost... so if your max boost was 24, then set the controller to 22-23psi. Why he liked to do this? Im sure he has his reason...

Give SNOW a call and see what they have to see about the issue. Im sure they will be willing to assist.

 

[blown98gt]

it's hard to call, i sent an email i'm +14 hours of EST so i have to either stay up really really late or find time to call during my work day. i'm sure if i just see if the tuner can set it to go off just a few psi before max boost it'll cut off the mix from the pump to the jet but still leaves some in the line... hmmm

 

[ProKiller]

i can't really speak to this as i've had my snow kit sitting in the box now for close to two years awaiting install, but i don't really like that idea. The whole point of meth inj is to run more boost with more timing. if you shut that pump off at 22#s you have 24#s of boost WITH more timing going into your engine! That's a poop load of boost without a cooler involved. Now i realize there is some still in the line, but how sure are you that it will be enough for you to shift and get the RPMS/boost back down? willing to bet your motor on it? I'm not.

So you have the nozzle between the blower and the throttle body? how did it get to the MAF?

 

[Magic]

i can't really speak to this as i've had my snow kit sitting in the box now for close to two years awaiting install, but i don't really like that idea. The whole point of meth inj is to run more boost with more timing. if you shut that pump off at 22#s you have 24#s of boost WITH more timing going into your engine! That's a poop load of boost without a cooler involved. Now i realize there is some still in the line, but how sure are you that it will be enough for you to shift and get the RPMS/boost back down? willing to bet your motor on it? I'm not.

Well, since it is being tuned and the purpose of tuning is to make the power AND to keep it safe...
You can start to pull out timing in the high rpm range (where the most damage tends to occur), few hundred RPM before your rev limiter, or peak boost...etc etc..
Ive seen this done with cars running a standalone system (BigStuff3, FAST, DFI)...and Im sure it can be done with stock ECM cars and the SCT or whatever tuner software/hardware thats being used.

It also depends on how your are driving your car...at the drag strip and street/highway is different...and also the conditions...you maynot always hit peak boost IE 24PSI, or NEED to hit peak boost...

But then again, IM no expert. Just going by what Ive experienced/seen in my years.

 

[blown98gt]

i can't really speak to this as i've had my snow kit sitting in the box now for close to two years awaiting install, but i don't really like that idea. The whole point of meth inj is to run more boost with more timing. if you shut that pump off at 22#s you have 24#s of boost WITH more timing going into your engine! That's a poop load of boost without a cooler involved. Now i realize there is some still in the line, but how sure are you that it will be enough for you to shift and get the RPMS/boost back down? willing to bet your motor on it? I'm not.

So you have the nozzle between the blower and the throttle body? how did it get to the MAF?

does anyone really not read it's a procharger d1sc setup blow-thru and the MAF is in the passenger side fender well, then the pipe connection to it goes to the TB towards the top of that pipe is the jet; some how the vacuum created from 23lbs of boost sucked out the mix from the hose to the tube. this sucked droplets since the jet is made to spray when activated the droplets dropped down the tube while it was idling and boom MAF fried..

i think i'll just upgrade to 2 jets for a dual setup and then i'm going to use the solenoid offered from Snow even though my application meets now of the needs for it, it does do what i need it to do.