Hot Rod Forum banner

Fuel return for nitrous

2.1K views 2 replies 3 participants last post by  ericnova72  
#1 ·
Can the return line from a BG return style diaphragm fuel pressure regulator be used to supply fuel to the fuel solenoids of a wet nitrous system?

As in, I want to supply the fuel to a 100 shot direct port fogger system on my BBC. The fuel system is a dead head, returnless system. I would use the regulator as a make shift "T" fitting. Fuel would be supplied by the return port on the regulator. Is this possible, or more importantly able to supply enough fuel without any pressure spikes?
 
#3 ·
I would NOT do this, you will have no control over the nitrous system fuel pressure this way. Use a Mallory # 4309 3 port regulator if you are looking to run a return lne, it has the inlet, 2 outlet, and a return port(plus has a vacuum/boost pressure reference port if you need it).

Make sure your pump is capable of delivering the fuel needs of both engine and nitrous. Don't guess, make sure you know pump is enough, along with line size.

What pump, line size, regulator are you currently using?? Engine HP??