Simple FPSS question. Did a search.
Thread Starter
TECH Resident
iTrader: (7)
Joined: Dec 2004
Posts: 850
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From: Arlington, Texas
Simple FPSS question. Did a search. Alright, Im in need of a fuel pressure safety switch. Been using a small shot of nitrous for too long without one and have a question.
Alright, I understand that my stock fuel pump runs around 45-50psi or so, im replacing it with a 255lph walbro later this month.
When shopping for a FPSS I found a nicely priced one from NOS. It says it is adjustable 25-50psi. The following is assuming I have it adjusted to 50 PSI for examples sake. Its installed properly, set to 50PSI.. Now.. that means it will only allow my nitrous to be sprayed when its at 50PSI or higher, correct?
Just trying to verify before I end up with one I cant use, even though im pretty sure I got this right. Never hurts to ask for a double check.
PN is: 15685NOS
-Lurius
Alright, I understand that my stock fuel pump runs around 45-50psi or so, im replacing it with a 255lph walbro later this month.
When shopping for a FPSS I found a nicely priced one from NOS. It says it is adjustable 25-50psi. The following is assuming I have it adjusted to 50 PSI for examples sake. Its installed properly, set to 50PSI.. Now.. that means it will only allow my nitrous to be sprayed when its at 50PSI or higher, correct?
Just trying to verify before I end up with one I cant use, even though im pretty sure I got this right. Never hurts to ask for a double check.
PN is: 15685NOS
-Lurius
Originally Posted by Lurius
Alright, Im in need of a fuel pressure safety switch. Been using a small shot of nitrous for too long without one and have a question.
Alright, I understand that my stock fuel pump runs around 45-50psi or so, im replacing it with a 255lph walbro later this month.
When shopping for a FPSS I found a nicely priced one from NOS. It says it is adjustable 25-50psi. The following is assuming I have it adjusted to 50 PSI for examples sake. Its installed properly, set to 50PSI.. Now.. that means it will only allow my nitrous to be sprayed when its at 50PSI or higher, correct?
Just trying to verify before I end up with one I cant use, even though im pretty sure I got this right. Never hurts to ask for a double check.
PN is: 15685NOS
-Lurius
Alright, I understand that my stock fuel pump runs around 45-50psi or so, im replacing it with a 255lph walbro later this month.
When shopping for a FPSS I found a nicely priced one from NOS. It says it is adjustable 25-50psi. The following is assuming I have it adjusted to 50 PSI for examples sake. Its installed properly, set to 50PSI.. Now.. that means it will only allow my nitrous to be sprayed when its at 50PSI or higher, correct?
Just trying to verify before I end up with one I cant use, even though im pretty sure I got this right. Never hurts to ask for a double check.
PN is: 15685NOS
-Lurius
With it set at 50psi, that means once the FPSS reads less than 50psi it will ground the nitrous system and stop spraying, but YES you are correct!!!!
Thread Starter
TECH Resident
iTrader: (7)
Joined: Dec 2004
Posts: 850
Likes: 0
From: Arlington, Texas
Awesome, Thanks guys! Put away the bottle for winter and am itching to use it this spring, want everything to be perfect. Next im going to do away with the push button and go with a window switch.
-Lurius
-Lurius
Originally Posted by BOTTLEFEDLS1Z
With it set at 50psi, that means once the FPSS reads less than 50psi it will ground the nitrous system and stop spraying, but YES you are correct!!!!
Originally Posted by NHRATA01
Correct but you have it backwards - the FPSS is put in the path to ground. The FPSS closes a contact and completes the circuit to the noids (usually thru the window switch) when sufficient pressure is present, and opens, thereby breaking the ground when it drops below a threshold.
Robert
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