Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Intank or Inline FP?
View Single Post
  #8 (permalink)  
Old 10-23-2012, 01:31 PM
ap72 ap72 is offline
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 31
Posts: 9,544
Wiki Edits: 0

Thanks: 20
Thanked 404 Times in 377 Posts
Originally Posted by zildjian4life218 View Post
NA engines are around .4-.5 bsfc right? Most pumps I have seen are EFI which idk if there are any disadvantages to running that high pressure pump to the regulator then just let it run back the return. The calculator on walbro said 200 lph should be good for 400hp at .5 bsfc so even if I stepped up to a 255 lph which is a popular size I should be okay since I will have that return
200lph and 255lph at what pressure? and there is generally no problem with running an efi pump with a low pressure regulator, provided your return line is adequate.
Reply With Quote