Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 421 SBC not making power
View Single Post
  #16 (permalink)  
Old 02-14-2013, 07:07 AM
gearheadslife's Avatar
gearheadslife gearheadslife is offline
MentalMuffinMan
 
Last photo:
Join Date: Nov 2012
Posts: 1,977
Wiki Edits: 0

Thanks: 83
Thanked 222 Times in 209 Posts
Quote:
Originally Posted by yorkcounty View Post
Yes it is electric and I have a 10 gauge wire ran to it. I have it ran through a relay off the switch. It's approx. 4 feet from the fuel cell under the truck.

Now the return line issue is very interesting. I am running a deadhead style regulator to the carb. I have 3/8 lines from each side of the regulator to each bowl but no return. I do have a pressure gauge inline and I'm on 7-8 psi.

I wasn't aware that the electric pumps stop after reaching pressure so to speak.
electric pumps DON'T STOP but the dead head regulator shuts off the fuel flow, and then the pump just sit's and spins, the fuel is what cools the pump, and is what lubes it.. what psi you have after you top out 1st gear, the fuel being stopped at the deadhead regulator, and your using it at WOT is your issue, the pump can't get the fuel to move in the 1/ line fast enough.. and the fuel volume in the line works against you..
looss the dead head and add a return line,, problem solved
Reply With Quote