Notices
Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks
Sponsored by:
Sponsored by:

Confused on Dual fuel pumps

 
Old 04-21-2019, 02:40 PM
  #1  
Launching!
Thread Starter
iTrader: (1)
 
The Outlaw Kid's Avatar
 
Join Date: Aug 2012
Location: Central Illinois
Posts: 214
Default Confused on Dual fuel pumps

Iíve been reading about dual pumps and Iíve confused my self. I keep reading about a hobbs switch and having a second pump come on when the psi drops . I just read something that said that is due to the factory regulator. Nothing about my set up will be factoring from the lines to the engine. Can I just run twin pumps with a hot wire kit and run them both at the same time using AN feed line AN return line and an aftermarket regulator at the rails? Do I have to have a return line with an aftermarket regulator at the rail?
The Outlaw Kid is offline  
Old 04-21-2019, 10:22 PM
  #2  
TECH Apprentice
 
Drj8787's Avatar
 
Join Date: May 2010
Posts: 362
Default

Run a return off the reg to the tank. The hobs switch is for boost, not pressure loss. But I guess it could be looked at that way from a different perspective. Do you have a turbo or supercharger? Why do you need dual pump?
Drj8787 is offline  
Old 04-22-2019, 12:11 PM
  #3  
Launching!
Thread Starter
iTrader: (1)
 
The Outlaw Kid's Avatar
 
Join Date: Aug 2012
Location: Central Illinois
Posts: 214
Default

Originally Posted by Drj8787 View Post
Run a return off the reg to the tank. The hobs switch is for boost, not pressure loss. But I guess it could be looked at that way from a different perspective. Do you have a turbo or supercharger? Why do you need dual pump?
ok makes sense. Building a forged 370 LS3 heads plan to use a big shot of nitrous on it at the moment. But boost may be in the near future. Been looking into what pump to run and for the power level Iím shooting it seems like dual pumps is the way to go.
The Outlaw Kid is offline  
Old 04-26-2019, 05:15 PM
  #4  
9 Second Club
 
Join Date: Nov 2003
Location: Norn Iron
Posts: 12,305
Default

Originally Posted by The Outlaw Kid View Post
Iíve been reading about dual pumps and Iíve confused my self. I keep reading about a hobbs switch and having a second pump come on when the psi drops . I just read something that said that is due to the factory regulator. Nothing about my set up will be factoring from the lines to the engine. Can I just run twin pumps with a hot wire kit and run them both at the same time using AN feed line AN return line and an aftermarket regulator at the rails? Do I have to have a return line with an aftermarket regulator at the rail?
Yes you can. Simple is good..

There are dead end PWM controlled systems available for no regulator...but that is not simple.

So yes, just run a regulator close to the rails/engine, and a return line. It works...every time. It's simple.
stevieturbo is offline  
Old 04-26-2019, 06:26 PM
  #5  
TECH Addict
iTrader: (9)
 
Floorman279's Avatar
 
Join Date: Mar 2011
Location: Wilmington, DE
Posts: 2,737
Default

not 100% certain how it works, but i bought the lonnies doubles. he told me that since im N/A i can set it up to come on at a given rpm. so if i know im maxing out 1 pump at 6500, ill just have the other one kick on at 6300 or so. unsure how to do that tho since im not at that point of modding yet
Floorman279 is offline  

Thread Tools
Search this Thread

About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: