Fuel pressure and volume at test port with direct injection for nitrous

[Pappaprime]

I have decided that I am going to run the wet kit that I already have. How much pressure is at the test port and is the volume enough to feed a 100 shot on a -4an line. Thanks in advance.

[IneedAZ]

Some found it to be adequate. For me it wasnt enough as the pressure dropped many times throughout the 1/4mile pass. I changed the fuel pump to the ZL1 pump and upped the line to #6. Much better now!!

[etmx183]

+1 for me too.
I am now setting up a dedicated fuel cell for my nitrous only. I'm planning on going higher on my settings in a few months and want to have plenty of fuel flow/pressure.

Originally Posted by IneedAZ

Some found it to be adequate. For me it wasnt enough as the pressure dropped many times throughout the 1/4mile pass. I changed the fuel pump to the ZL1 pump and upped the line to #6. Much better now!!

[Pappaprime]

How much fuel do you think it takes to run 4-5 passes. I am thinking of building a small aluminum tank with a holley blue pump to feed the nitrous. I would put this small tank under the hood. I just bought a universal Zex kit and i was going to tap into the test port for my fuel. That is until someone told me that with a returnless fuel system there would not be consistant pressure . I only want the tank volume to match the nitrous bottle volume. But i guess for now i should be able to use the test port with a small 50 or 75 shot. What do you think. Thanks in advance.

[IneedAZ]

As etmx183 is doing, a small dedicated tank and pump under the hood has many advantages. I have the same in my 67 Camaro. Besided steady pressure, it also allows me to up the octane in that small tank. I think mine is 1.5gals which last me 4-5 runs on a 150shot. IF you have the money and will be running 100+ shot it would be the way to go for consistency IMO.

[etmx183]

50 - 75 shot you should be good