Fuel line modification or other options for use with big pumps for 92 vette
08-07-2016, 02:25 PM
#1
Fuel line modification or other options for use with big pumps for 92 vette Hi guys. I've got a 92 y body. I am currently running the stock lines with a Walbro 465 pump and aeromotive regulator. It appears that the stock return line is too small to handle this much flow. The fp is set at 43 psi but it spikes up to 65 psi when the car is started. I think I have a few options...
1. Assuming my injectors are okay with 80 psi (65 base and 15lbs of boost), I could just tune it the way it sits.
2. Or I could either add new lines or swap the feed line to be the return line and add a new "feed" line such as a -8. Obviously adding new lines would be much more trouble.
3. Pull the 465 and back down to a smaller pump and add a boost a pump. More $$$ and more complexity.
What would you guys suggest?
1. Assuming my injectors are okay with 80 psi (65 base and 15lbs of boost), I could just tune it the way it sits.
2. Or I could either add new lines or swap the feed line to be the return line and add a new "feed" line such as a -8. Obviously adding new lines would be much more trouble.
3. Pull the 465 and back down to a smaller pump and add a boost a pump. More $$$ and more complexity.
What would you guys suggest?
