Could this be the cause of the pause
Could this be the cause of the pause if im understanding this right this is what i have. When activated on spray my car has a slight pause then pulls hard. Im using a 78mm n20outlet plate and ive tried everything. I came to this way to test to see if the nitrous and fuel are getting to plate at same time. Well when i hook up the plate to bench test this is what i got as soon as you hit the nitrous side it sprays dead on like instantly. But on the fuel side when i tap it nothing comes out you have to actually hold button for about 1.5 secs before it sprays fueland since the plate is behind the MAF this is what could be the cause of the pause right?? What can i do to get more press up the rail to the noid? Im thinking of getting the racetronix fuel pump what else should i look at also changing the fuel filter. Thanks in advance for your help
2 foot is pretty far away for the fuel, its having to push the air out of the line threw the little pin hole in the jet. get you noids as close as you can to the plate.The nitrous is getting to the plate first ,because its under high pressure and can cause you a lean spike, 1.5 sec. of nitrous with out fuel can cause you spark knock and possibly engine damage. 1.5 sec. is at the greatest load on your engine ,about your first 60ft.
Teching In
Joined: May 2011
Posts: 19
Likes: 0
From: Northwest Ohio
I am having the same problem. I installed my fuel pressure gauge and seen I am dropping from 58 to 38 psi from the rail. Going to hold off in spraying any more until I get time to change the fuel pump and see if that helps.
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FormerVendor
Joined: Feb 2012
Posts: 634
Likes: 0
From: Waco, TX
if im understanding this right this is what i have. When activated on spray my car has a slight pause then pulls hard. Im using a 78mm n20outlet plate and ive tried everything. I came to this way to test to see if the nitrous and fuel are getting to plate at same time. Well when i hook up the plate to bench test this is what i got as soon as you hit the nitrous side it sprays dead on like instantly. But on the fuel side when i tap it nothing comes out you have to actually hold button for about 1.5 secs before it sprays fueland since the plate is behind the MAF this is what could be the cause of the pause right?? What can i do to get more press up the rail to the noid? Im thinking of getting the racetronix fuel pump what else should i look at also changing the fuel filter. Thanks in advance for your help
What all is done to your car? It sounds like you are taxing your fuel pump to much. Does the fuel pressure recover quickly or does it stay low? How much are you spraying and what kind of set up are you using.
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Joined: May 2011
Posts: 19
Likes: 0
From: Northwest Ohio
Neal,
Thanks for the reply. As far as motor I am pretty much running stock other than an air lid. My pressure is not recovering just staying at 38 until I get off the nitrous, then it recovers to about 58. For my setup I am running nitrous outlet solenoids and a Harris plate. I have both lines to the solenoids equal lenght with 100 shot jets.
Thanks for the reply. As far as motor I am pretty much running stock other than an air lid. My pressure is not recovering just staying at 38 until I get off the nitrous, then it recovers to about 58. For my setup I am running nitrous outlet solenoids and a Harris plate. I have both lines to the solenoids equal lenght with 100 shot jets.
FormerVendor
Joined: Feb 2012
Posts: 634
Likes: 0
From: Waco, TX
Neal,
Thanks for the reply. As far as motor I am pretty much running stock other than an air lid. My pressure is not recovering just staying at 38 until I get off the nitrous, then it recovers to about 58. For my setup I am running nitrous outlet solenoids and a Harris plate. I have both lines to the solenoids equal lenght with 100 shot jets.
Thanks for the reply. As far as motor I am pretty much running stock other than an air lid. My pressure is not recovering just staying at 38 until I get off the nitrous, then it recovers to about 58. For my setup I am running nitrous outlet solenoids and a Harris plate. I have both lines to the solenoids equal lenght with 100 shot jets.
