Got the car running pretty good, stock 5.3 with torqstorm supercharger with 3" pulley should get 10-12psi. I have snow performance water/meth with 175ml/cc nozzle (snow rates this nozzle for 350-500whp) activated full flow at 5.5psi roughly shooting new wiper fluid. I run no intercooler. Today I had the system activated (since my AFR in boost is between 10.5-11.5 so far) and in my log I had a 10.5:1 AFR at 4500 rpms and MAP reading of 155 kpa (7.78psi boost) and my data log shows the water/meth was activated. Motor went immediately lean in less than 1 sec and went from the 10.5:1 to 16.5:1. My Innovate PSB-1 WB02/boost controller has a fail safe that I set AFR/boost cutoff for something leaner than ideal which it must have triggered and shut down 4 injectors thus creating the super lean condition.

In my Log I see that I have voltage output from AEM meth flow fail safe gauge which is showing that it activated. Not sure if any fluid was pumped but something activated the Boost fail safe and I had to limp it for a while before restarting the motor to reset the fail safe.

Is it possible that I could have quenched the motor at 4500 rpms and with a 175ml nozzle? I went to pull the data log off the meth flow fail safe gauge but got no data (no flow), but the gauge was blinking showing that it had been activated.

So either something happened with the flow gauge fail safe or the innovate PSB-1 causing my failsafe system to cut 4 injectors out to save the motor.

 

Lol probably not. Mine comes on at 8 PSI, which is about 3400 RPM on my 10:1 5.3 and I run a bigger nozzle also.

 

That's a tiny nozzle.

 

lol thanks.

So its probably that the pump didn't push any fluid so the AEM meth fail safe activated. Now I gotta figure that out. This is my first time tuning with METH but I also thank my 10.5:1 in boost is a bit rich at the moment.

It is a tiny nozzel, snow rates the 175cc/ml for 350-500 whp. I'm assuming im at about 450-550 crank hp which puts me in that ballpark. Since I run no IC this is my form of cooling and thats all its being used for. Cooling/detonation control which is why I run wiper fluid.

 

Just went over everything today. AEM failsafe water/meth flow gauge did not record any data logging of when it was activated. I replicated the event by turning the system on for a very short duration much less than 1 sec. Pump turned on, very small amount of fluid if any came out but the Gauge did not datalog any info. It needs to be active for a slightly longer duration to record. Originally I had it set to activate failsafe in 350ms if no flow was found, so I increased that setting the max which is 1s. Hopefully it flows pressure that quickly as its very hard to time that short a duration. I also reset the perimeters for high and low values to trigger the alarm. THen I disconnected the failsafe from the engine ECM so it wouldn't kill 4 injectors if the system was tripped. Only because i want to verify its coming on and working correctly. If not I'll know and the tune should be safe enough to keep it from doing any damage.

I also verified the nozzle, its a 175ml/min nozzle and it seems to put out a very decent amount of fine mist. My AEM fail safe flow gauge actually measures the amount of fluid being flowed out the nozzle and at 100% pump pressure the nozzle puts out 360ml/min according to the flow gauge even tho Snow performance rates it at 175ml. I have 3 nozzles in my kit, 100, 175 and 375.

100ml = good for 250-350rwhp
175ml = good for 350-525rwhp
375ml = good for 525-700rwhp

I'm using the 175ml and I estimate my 5.3 with 10psi to put out about 500 fwhp depending on a few things but the supercharger does eat 50hp roughly at full boost. so If I'm around 400rwhp I'd be happy and puts be in the ball park of the 175ml nozzle. I guestimate 10psi but this is the smallest pulley 3" that torqstorm offers and I could see anywhere from 10-12psi on a stock 5.3.

So now I need to run it high boost and verify the pump/meth is working correctly. I actually ordered a cheap ebay speed daddy 31x12x3.25 FMIC with 3" piping kit, I will combine the two cooling methods and hopefully lower my 150 IAT as much as possible. I would welcome a 1-2 psi pressure drop as well since its mostly hot air anyway.

 

Update

 

5 yr old thread.....