I think you misunderstood what I was getting at. I understand you're not killing power to the pump under high boost.

Correct me if I'm wrong but the way you have it set up now, when there is an alky inj failure it triggers the solenoid so boost drops down to wastegate pressure and power is killed to the pump. What I was saying was why kill power to the pump at all? Just have it trigger the solenoid to drop boost down to wastegate pressure and leave the pump alone. That's what I was getting at. There's not anything wrong I suppose with killing power to the pump when boost is at wga pressure but why even do it?

 

I guess because that was the idea I had @ the time, and I figure if your running wga pressure that running no meth wouldnt be an issue. but your idea should work as well, that is why I wanted feedback its great for brainstorming. yes I said brainstorming something used in grade school.

How would you hook it your way to trigger to low boost if there is high pressure detected? Its easy to say "how it switch to wga pressure" but I already have the ground side of the boost solenoid used for the low pressure.

 

The power to the pump should never be disconnected. That is not a failsafe.

 

I started a new thread here. This is the idea I had for using two pressure sensors. Feel free to leave any feedback.

 

if you @ wga pressure then why should it matter if the pump is on or off. my wga pressure is around 13-15 I highly doubt I need any meth spraying then

the pump power is tied into the soleonoid, so if some odd reason a wire gets cut or doesnt turn on then you will get wga pressure since the pump and solenoid share the same power wire.

NO POWER = WGA PRESSURE

 

If meth starts spraying at 8-10 psi like it should and your tune is competant, then YES fuel has been removed from the injectors at that load level and you would run lean.

I really don't think you would be laughing then.

Its really a stupid design.

 

WTF are you talking about, you are WAY OFF.

OMG you my friend dont understand, first of all chill with the bashing. Lets talk really slow for Mr. TTP

OK here it is again once the HFS detects a clogged nozzle it will pop the fuse this will:
1. In a blink of an eye switch to wga pressure (because it lose power)
2. Kill the w/i (because it lose power)

Why do you need to be spraying meth when your @ wga pressure? You havnt answer that question yet.

And wouldnt you be Lean if your nozzle is spraying 1/2 or 1/4 of what its rated @ because its clogged? YES ESP. if your running the bigger nozzle ex. m10 m15



Also the LFS does the same thing when it detects low fluid level, it goes to wga pressure as well. HOLD ON SAME CONCEPT, NOT SPRAYING METH @ WGA PRESSURE

SO I ASK YOU WHAT IS THE DIFFERENCE?

I'm a nice guy but DAMN man I take my time out of my day FOR WHAT?

I am not LEAN @ WGA PRESSUE WITH NO METH.

For the record if ppl ran a inroute filter to the pumps inlet, then they wouldnt have this problem let alone do nozzle maint. every 4-6 months.

 

Clogged nozzle has never happened to anyone I have ever known in the years of methanol injection experience we have. It is all but a myth.

Killing the pump is A STUPID IDEA. Why on earth would someone benefit from removing power from a pump.

Dropping boost while still spraying is the answer. Even if the volume is down, it will still be safer.

You can sell this idea all you like and its nothing personal, but it is a ridiculous answer for a failsafe.

You would probably have more risk of the failsafe blowing your engine than losing it from a clogged nozzle.

 

i agree with that (in bold)

for the 4th time I tied the boost solenoid into the pump's power wire. so for some odd reason you dont get power to w/i system (pressure switch doesnt arm, cut power wire, fuse blown) then you will get wga pressure.

so i dont understand the difference if you have a bad wiring and the pump not turning on. Or killing the fuse, you act like your going blow fuses all day or something. You even admit to it not really happen too

ha ha think your so funny, i dont know how your going to blow your motor from running wga pressure with no w/i. it will switch over so damn fast but whatever. i expect an reply like that from a "big baller vender"

 

First of all, bnice01 take a couple deep breaths and try to relax. You seem to be getting a little too worked up over this. I think you're missing our point. You can argue that having the pump killed while boost is dropped to wastegate pressure won't hurt anything, but whats the point of having a failsafe do that? Just leave the pump out of it and only have boost cut during a failsafe action.

You asked earlier how I would wire it up. Just remove the pumps power wire from the failsafe's circuit completely. Run a dedicated power wire to your boost solenoid and call it a day. The purpose of a failsafe is to cut boost, switch over to a more conservative map, or anything else that could potentially save your motor. Having power killed to the pump doesn't do anything to help so why do it?

If you're still content with the way you have it setup, then by all means don't change a thing. You will never see a failsafe on the market today that kills power to the w/i system as part of it's action. There's a reason for that.


EDIT
This is exactly right. Bnice01, if you have a partially clogged nozzle and flow is down(pressure up), why would you want to kill power to the pump under that circumstance. You still have some flow and some is better than none.

 

ok if I remove the power completely then what if you dont get any power to the pump? your still going to be in high boost, because there will be still pressure in the line from the check valve or water solenoid. I have a water solenoid because my system is in my truck and I dont want to be waiting for it prime and spray every pull.

 

trust me I want to do that but one night my pressure switch came off (so w/i didnt arm). so the pump & water solenoid never turned on, I was still in high boost because I didnt have low fluid, and there was pressure still in the lines from the water solenoid not opening. So that is why I have it tied together. So thats my question how would I wired it doing it like that.

I am not trying to selling anything, everyone see things differently. I understand its "better" to have some fluid spraying while in wga pressure but if not lean while not spraying @ all then why should it matter

my a/f is 10.0-10.5 while in wga pressure with no W/I

I apologize if I was out of line I just dont respond well to rude and childish comments

 

It sounds like you have your alky line pressure sensor between the pump and solenoid. I'd think it would work better if it was placed between the solenoid and nozzle.

So the line pressure sensor will only react after the solenoid opens and full pressure is seen. This would then switch over your boost solenoid giving you full boost.

With the pressure sensor placed after the solenoid, you won't have to worry if the pump fails/solenoid doesn't open. Pressure still remaining in the line will not be able to trigger the sensor in this case.

 

MY MAN, thats the feedback I am looking for something positive

THANK YOU

Then that way I can hook up the HFS straight to the boost solenoid, leave the pump/ water injection system out of the picture. get a breaker or inroute fuse to trigger it to ground out (no power) =wga pressure with the pump still spraying.

 

after seeing your thread HMAN (what slowcar pointed out) i think I am just going to stick to the verison 2 diagram and do just nozzle maint. with my inroute filter. I have done alot of w/i installs and havnt seen a clogged nozzle. but again man great ideas and thanks for pointing me in the right direction for new ones.