Lets Talk Nitrous

tommysdodge · Jun 25, 2014

It should say the same the way I read it because it said if the pressure goes over 60psi an internal diaphragm opens pushing pressure back into the tank .

redram2007 · Jun 25, 2014

This is what a friend said that runs 125-150 on a 4.7 with stock internals.

"You havta figure out what psi your fuel system creates under wot, and account for a 2-5psi drop depending on hp jetting size used."

So you will need a fuel pressure gauge inside the cab to figure it out.

redram2007 · Jun 25, 2014

Have you seen this yet?

http://www.go-fast.org/z28/new_to_nitrous.html

tommysdodge · Jun 25, 2014

yeah i read that one earlier today and with the way he put it then fpss would be set at 45/46 psi for us.

redram2007 · Jun 25, 2014

I don't know about that. From what he's saying the fuel psi goes up under load/acceleration.

He's going to send me his psi specs and settings in relationship to jet sizes from his 4.7 jeep. He also said using the method with the bucket is a really good idea and will get us very close to where we need to be.

tommysdodge · Jun 25, 2014

i didnt get that from the reading on the go-fast page. but id like to see it. when i read the service manual it read as though it should always be with-in a 5psi range and never going above 60psi

redram2007 · Jun 25, 2014

My bad. As soon as he sends it to me I will post it up. Hopefully we will get it figured out so we don't blow our engines up.

tommysdodge · Jun 25, 2014

hahaha yeah true

tommysdodge · Jun 25, 2014

this should be made a sticky to help everyone after us with the same questions

redram2007 · Jun 25, 2014

tommysdodge said:
this should be made a sticky to help everyone after us with the same questions

nethumb:

tommysdodge · Jun 26, 2014

so got board today and added my underhood lights got tired of losing light. so got two 4.5 inch running lights and merc. switch it is bright as hell and i luv them

redram2007 · Jun 26, 2014

Do you need a bottle pressure switch? I have a brand new NX one I'm not going to use...

tommysdodge · Jun 26, 2014

i dont have one dont have a bottle heater. why arent you going to use it

redram2007 · Jun 26, 2014

Bc it's not adjustable but it's preset instead. Since my bottle is going to be in the bed and I can't keep an eye on the gauge at all times I ordered an adjustable one. But if you ever buy a heater and need one let me bc it's just going to sit in the garage.

tommysdodge · Jun 26, 2014

Oh OK I understand

tommysdodge · Jun 28, 2014

so got out and set up the nitrous management unit and put the switch tested it and its only opening at full throttle now all that is left is hooking up the window switch and fpss

pic of switch

pic of how i think im going to hook everything up that i found

redram2007 · Jun 28, 2014

I will post a diagram of how I plan to wire mine up later, looks similar to yours except the 12v for the window switch will have it's own power source to prevent signal interface. I picked up the MSD 8969 and MSD 8918 tach adapter just in case. Talked with NX and they said the FPSS comes preset at 35 psi, and I "should" not have to adjust it.

redram2007 · Jun 28, 2014

Here's the diagram I'm thinking I should use.

tommysdodge · Jun 28, 2014

still have to get my tach adapter and the fpss and than fill the bottle been on such a tight budget with tring to get this house, so maybe in the next few weeks ill be up to tring it out

tommysdodge · Jun 28, 2014

yeah i saw that diagram when i was looking for one that looks like a winner

so on the fpss your thinking about leaving at the factory setting of 35 instead of pushing it up to 45?

Lets Talk Nitrous

tommysdodge

redram2007

redram2007

tommysdodge

redram2007

tommysdodge

redram2007

tommysdodge

tommysdodge

redram2007

tommysdodge

redram2007

tommysdodge

redram2007

tommysdodge

tommysdodge

redram2007

redram2007

Attachments

tommysdodge

tommysdodge

Top Contributors this Month

Recommended Communities