Fuel Safety cutoff - Hemi Truck Club
 
Go Back   Hemi Truck Club > HEMI | Performance Zone > Nitrous Oxide Topics

Reply
 
Thread Tools Display Modes
 
Old 05-25-2007, 02:23 PM   #1
 
Join Date: Aug 2005
Posts: 2,945
Fuel Safety cutoff

Well, here is what I am faced with. One of the worst thing that can happen is that the fuel does not spray and a big shot of NO2 is put in without enough fuel and then boom... I have seen the fuel pressure safety switches, but those seem to go before the solenoid, which means if the solenoid does not open, then the fuel pressure safety switch will not do any good. So what else can I do to defend against ths potentail problem?

slvrmagnum is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-25-2007, 03:13 PM   #2
KOZ
Guest
 
Posts: n/a
Fuel Safety cutoff

You can hook it up to the fuel line that goes to the nozzle from the solenoid and have it control the power going to the NO2 solenoid. That way, when it drops, It will shut off the NO2.

Either way, it wont spray unless the cut off switch senses there is fuel going to the actual nozzle. At that point in time, it will activate the N02 solenoid. You just have to watch it, cause you dont want too big of a delay between the fuel being added and the no2 coming into the manifold. You dont want puddling going on. But at 1100 psi, the no2 gets to the nozzle alot faster than the fuel does anyways. Hope this helps.
  Reply With Quote
Old 05-25-2007, 03:37 PM   #3
 
Join Date: Sep 2006
Posts: 1,440
Fuel Safety cutoff

Yeah, if it puddles you will lose your manifold. A lot of the LS1 guys run dry shots for that reason.
1FASTV8 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-25-2007, 03:49 PM   #4
KOZ
Guest
 
Posts: n/a
Fuel Safety cutoff

I honestly dont think that it will puddle just because the nitrous will actually get to the nozzle way before the fuel does
  Reply With Quote
Old 05-25-2007, 03:49 PM   #5
KOZ
Guest
 
Posts: n/a
Fuel Safety cutoff

ls1 has interlaced runner design on their manifolds..they have ALOT of low spots that fuel can puddle
  Reply With Quote
Old 05-25-2007, 04:21 PM   #6
 
Join Date: Sep 2006
Posts: 1,440
Fuel Safety cutoff

I know, I'm just saying worst case senerio.
1FASTV8 is offline   Reply With Quote
Old 05-25-2007, 04:49 PM   #7
 
Join Date: Aug 2005
Posts: 2,945
Fuel Safety cutoff

What type of PSI would I see after the solenoid though, enough to measure, and with the sensor, will the NO2 still reach the nozzel at the same time or close enough not to cause a rich condition?
slvrmagnum is offline   Reply With Quote
Old 05-26-2007, 01:06 PM   #8
KOZ
Guest
 
Posts: n/a
Fuel Safety cutoff

thats the issue at hand, to be honest with you, I can not imagine there being a gap due to nitrous entering at 1100 psi and fuel at 59 or whatever it is. The sensors for fuel pressure can be set to whatever you want. I think they operate as long as you have some pressure. I am not sure since I never had one.
  Reply With Quote
Old 05-26-2007, 07:47 PM   #9
 
Join Date: Mar 2007
Posts: 211
Fuel Safety cutoff

Why dont you just get a AFR safety switch that way it will cut of the nos if it leans out(no fuel)
sdogre is offline   Reply With Quote
Old 05-28-2007, 07:13 PM   #10
 
Join Date: Aug 2005
Posts: 2,945
Fuel Safety cutoff

found my solution... will post up details later
slvrmagnum is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Premium Vendor Showcase
n2 Speed Edge InTune Edge OCPerformance Parts

All times are GMT -6. The time now is 05:21 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.