![]() |
|
|
|
Registered
|
what injector size / 79 3.0 big port EFI
I am in the process of starting a EFI project on my 79 3.0L big port.
Anyone have insight to what injector size is a good starting point? 31LB? 31lb/hr (330cc/min) Magneti Marelli (Pico) - Fox Injection 46LB? 46 lb/hr (483cc/min) Magneti Marelli (Pico) - Fox Injection |
||
![]() |
|
Registered
Join Date: Jul 2001
Location: mt. vernon Wa. USA
Posts: 8,718
|
__________________
[B]Current projects: 69-911.5, Previous:73 911X (off to SanFrancisco/racing in Germany).77 911S (NY), 71E (France/Corsica), 66-912 ( France), 1970 914X (Wisconsin) 76 911S roller..off to Florida/Germany RGruppe #669 http://www.x-faktory.com/ |
||
![]() |
|
Navin Johnson
Join Date: Mar 2002
Location: Wantagh, NY
Posts: 8,808
|
Yes just plug in the numbers on an injector selection calculator like the one above, or Marren has good one also..
https://www.injector.com/injector_selection_guide.html
__________________
Don't feed the trolls. Don't quote the trolls ![]() http://www.southshoreperformanceny.com '69 911 GT-5 '75 914 GT-3 and others |
||
![]() |
|
Registered
Join Date: Feb 2004
Location: UK
Posts: 2,230
|
Last edited by chris_seven; 01-06-2016 at 07:03 AM.. |
||
![]() |
|
Registered
|
also figure in type of fuel in the equation
![]()
__________________
88 930 3.4 ,Twin plugged billet Xtreme cylinder heads and denso COPs, Dougherty custom GT 2 evo cams,pauter rods,Garrett Gt40,ms3x Efi ,1100cc injectors,extrude honed 3.2 intake,TK billet fullbay I/C,MODE headers,KEP stage 2, E-85, 706 rwhp |
||
![]() |
|
Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,132
|
How much power do you plan on? Mid-20's I'd think would be plenty.
|
||
![]() |
|
![]() |
Registered
Join Date: Feb 2004
Location: UK
Posts: 2,230
|
Do you mean Methanol of other fuels with different energy ratings to normal gas?
I don't believe Octane Rating will change the energy produced although it may reduce compression and hence the horsepower developed which will be taken into account by all of the basic calculations. |
||
![]() |
|