Nitrous update...fuel pressure regulator...

[my66coupe]

Ok I finally received my kit Edlebrock #70001 which now also includes a holley fuel pressure regulator, WOT switch, RPM activation switch, and a bottle pressure guage all for $400 bucks. Well I have a question regarding the fuel pressure regulator...Where should I mount this and how? Its a single inlet, dual outlet. Should I...A. have the line come from the pump, use a T junction, split the line soo the main connects to the carb, and then inbetween the t junction and the solenoid have the regulator...soo only the nitrous will be regulated. r B. should i have it right after the pump, and have 1 outlet to the carb and the other to the solenoid, regulating both carb and nitrous solenoid?

Thanks guys

Mike

 

[10secgoal]

Hmmm. Ok, this is why nitrous can get expensive. To be the safest possible setup, your going to want another complete fuel system. Ya I know it sux but it is the best way. You can set the fuel pressure for the nitrous without ANY change in the pressure. What you may get with one system....set the fuel at 5.5lbs and then at 4k you hit the nitrous, and your pressure drops on the nitrous side because it is now trying to feed a motor AND nitrous. If you decide to keep only one system, y-block the fuel line before the regulators. You will need two of them. The motor and nitrous line need different line pressures.

 

[my66coupe]

Ok so if im understanding this properly, I will run the line off the pump, split it with 2 different lines, 1 going to the regulator and 1 to the carb. In the end, only the Fuel solenoid is being regulated, and the carb is getting pressure only off the fuel pump. Edelbrock also recommended a completely different fuel system. I think I will be fine with....A new pump that will flow at least 5.5 psi, and 120 gph, and then a regulator for the fuel solenoid to be safe. The edelbrock tech said that at only 50 shot, i shouldnt worry to much about the system im running. When things get more serious (above 100 shot) he said i would need safety switches etc to maintain a rich state.

Mike

 

[10secgoal]

Almost. Two different lines,yes. Each need to be regulated. If you don't regulate the carb line, it will push past your needle and seat and flood the motor. Probaly even bend a rod. You want the nitrous set a 5.5 FLOWING and the carb set to 6-6.5. You will also want a fuel purge. You will need to be able to check to make sure the fuel soleniod works each time before you use the kit. And it will eliminate any air in the line. If the nitrous doesn't comeon, who cares ? It might backfire out the exghaust. But pumping just nitrous tends to cause major motor problems. Ignorance can be bliss for somethings, but not nitrous tunning. Please get that book I was talking about.

 

[my66coupe]

This is getting real expensive......The edlebrock techie shunned all your advice.....he said with the pump im running (120gph at 6psi) and just splitting the line like the Edlebrock manual says only regulating the nitrous's supply of fuel i should be fine..... I have the book on order......Definetly not gunna run the bottle in the car until i know if i can safely do this. Ps where did you mount your solenoids?

Mike

 

[10secgoal]

This is getting real expensive......The edlebrock techie shunned all your advice.....he said with the pump im running (120gph at 6psi) and just splitting the line like the Edlebrock manual says only regulating the nitrous's supply of fuel i should be fine..... I have the book on order......Definetly not gunna run the bottle in the car until i know if i can safely do this. Ps where did you mount your solenoids?

Mike

I have delt with the guys at edelbrock and some of them are not the most informed people I've ever met. If your fuel pump is rated to 6 psi and NEVER goes higher, it will work. My advise above is not to say, " This is the only way to do it! Any other way, and I promise your motor will blow!" This is the way I went because it is the safest way. Although I would have to y-block mine because my pumps are both rated at 15 psi and have to be regulated.
Mine is a NOS kit and the solenoids are hard lines to the plate and just kinda hang there. P.S. you solenoids Must be above the plate for them to work corrcectly. (Take that as gospel, there is now way around that, I don't care what edelbrock says about that one. )

 

[my66coupe]

Ya Ive had enough of Edelbrock techies, one time I call, they sware by 130gph and 7psi of fuel, the next day, i get 120 at 6 psi mind you that the 1405's limit is 6.5 psi, and they never recommended a regulator. ......These guys just seem like they are bsing everything. Well I managed to get everything minus all the wiring set up today, I'm waiting on some switches....10secgoal your wisdom is worshipped as true "gospel" Thanks, I'll have pleanty more questions btw.

Mike

Ps...........i'm broke.........