Is the stock hard fuel line fine for MPI?
Posted 15 April 2018 - 07:55 PM
I plan on getting an Aeromotive adjustable FPR with this setup....
Posted 15 April 2018 - 08:47 PM
'89 Starion SHP...FIP MPI, 3" Exhaust, TEP Cam, Turbonetics 11021-BB T3/T4 Turbo, Treadstone Manifold, 75# injectors, Mookeeh Sway Bars, GC Coilovers, Saleen Replica Wheels, the list goes on...AND IT FINALLY RUNS!!!
Posted 16 April 2018 - 08:59 AM
by Admin on November 16, 2012 in General, Technical Articles
Lots of strange information out on the internet regarding fuel line sizing and it seems like most of the time people run way more diameter fuel line than they need. This is an interesting article that I came across that seems to be pretty relevant.
Quick reference for AN to Inch line conversion:
-6AN = 3/8″
-8AN = 1/2″
-10AN = 5/8″
-12AN = 3/4″
Fuel Line Sizing
A question that is often asked of me when dealing with high horsepower applications is: “My fuel line is nominal 3/8” id. Don’t I need to increase the size of the fuel line to at least ½” id (from a #6 to a #8 or #10) to support say 600 HP”?
The answer is “NO”! A 3/8”id fuel line can easily support 600 HP given sufficient “pump head”! Given a big enough pump a 3/8” steel line could support 1000 HP.
The simple way to know is to install an electronic fuel pressure gage. If the pressure falls as the engine RPM’s go up you need more pump head. More pump head can be achieved with a bigger pump, higher pump voltage and/or increasing the line size. But before you do check out the following (and remember a dirty fuel filter is often the culprit of falling fuel pressures!).
If you're trying for big HP and not logging fuel pressure, well, that's a waste of your time.
I can upgrade your Fuel Injection Pro firmware
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Posted 16 April 2018 - 10:07 AM
Insta = @battlemagnet
Posted 13 May 2018 - 06:59 AM
Edited by croquest87, 13 May 2018 - 07:00 AM.
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