wicked_95z

Im putting a wet kit on a 383 and need help plumbing the fuel. I was under the assumption that I could run a tee off of the schrader valve and run one end to my FP guage and the other to my nitrous solenoid. However today I was told that that is not a good idea. I did a search and was reading about a seperate fuel cell and pump for nitrous alone but it seems like the people that were running that setup were shooting over 200hp and it was a direct port sys. My car will be mostly street driven with a trip to the track once a week. It seems like a nice setup for running race gas but what are my alternatives. Pics would be great. Thanxs in advance

Mike383LT1

run it off the schrader valve have several friends running 150 through thier motor thats where they are pulling the fuel from

wicked_95z

Anyone else using the same setup or a different one

RacinLT1

i was spraying 175 and getting fuel from the schreader valve. thats a fine setup as long as your fuel pump can handle the load.

definately get a 255 intank if you dont have 1,and it should be fine.

JucinGTA

Whoever said that must be an Idiot. It doesnt matter if there is a T on it, it will still see the same amount of fuel. Like they say the path of least resistance.

You will be fine, I have had a T on mine since day 1.

JSK333

I also have a T on the rail--one end to the fuel noid, the other to the electronic FP sender. Works fine.

On big shots the FP gauge shows a quick dip, but looking at my PCM logs of the O2 sensors, it must be an artifact of the T and not an actual drop.

Injuneer

The Schrader is on the supply line, before the rails/injectors. If you suddenly start pulling fuel out of the Schrader, there will definitely be a brief drop in fuel pressure.... at least until the "drop" reaches the fuel pressure regulator on the return end of the rails, and shuts down on the return line to push the pressure back where it belongs. What you are seeing on your gauge is the real situation, not an artifact. Its very brief but it is "real".

Smaller shots, this is probably OK, larger shots set up a dedicated fuel supply.

JSK333

Really, you think so? My O2 voltages never change when this happens, so I figured it was a drop in flow to the sender as the fuel solenoid opened.

wicked_95z

Thanks everyone

wicked_95z

One more thing...is there anyway to decrease the amount of time until the FPR senses this drop and kicks the pressure up. Is there any chance of this pressure drop causing me to not have enough fuel for the nitrous and run into serious probs. Would an adj FPR be a good investment and kick up the pressure?