psphinx81

iTrader: (38)

on my stock motor i made 515 on a mustang dyno on 100 octane pump gas with a BR double pumper and 1000 cc injectors. stock rail, FPR, lines.

700 on emerys mustang dyno with my built motor on E85. FIC 2150's, BR double pumper, BR fuel rail, stock FPR, stock lines.

mrfred

iTrader: (50)

the purpose of the fuel rail is to provide the same fuel pressure to each injector. a "restrictive" fuel rail causes progressively leaner afrs going from cyl #4 (rich) to #1 (lean). its a nasty issue because wideband afr in the downpipe is an average of all four cylinders, so wideband afr can look great while #1 can be running much leaner than #4.

KGB_KGB

Hi,
My cylinder 1 piston cracked and chipped at the side. I am using the FIc 1450. I am using the stock fuel rail. How do I check if the Injectors are faulty or is it because of the fuel rail.
I am using a 6466 turbo.

Thanks

Ev0ikon

iTrader: (18)

Send them to FIC for flowtest

Omgitsnicho

Hey guys,

I want to build up my EVO to a 500 hp daily driver. I am looking at ID 1000 injectors for the upgrade. Anyone think I'm looking in the wrong area? Should I look for different injectors? Also, should I consider upgrading my fuel rail? Or would you guys say
is accurate. Thanks!

futurevowner

iTrader: (1)

Assuming you're talking dynojet numbers, id1000 injectors and a stock rail is plenty for 500whp.

mrfred

iTrader: (50)

on pump gas.

Omgitsnicho

Yeah I was talking dynojet numbers. Sorry for not being more specific. Sweet! I was hoping I wouldn't have to upgrade the fuel rail unless I really had to.

Thanks for saying this. I forgot to mention that. I want to make 500hp to the wheels on pump gas. I unfortunately can't conveniently get e85 in my area.

newera.59fifty

iTrader: (4)

I know this is super old but I purchased the Buschur fuel rail but the link used in this post for the "fuel rail to line adapter" is the same link as the rail itself. I'm needing to know what adapter to use with the buschur fuel rail.

mrfred

iTrader: (50)

The Buschur rail has the same connector as stock. If you are continuing to use the stock supply line, then no change is needed. If you are installing AN hose, then you need an adapter. Here's an example:

http://www.lancershop.com/customer/p...cat=151&page=1

supersnow

iTrader: (6)

http://www.extremepsi.com/store/prod...roductid=23977

Nimpoc

iTrader: (17)

Curiously, is there any testing to show this? I get the idea, just wondering at what power level this would be an issue.

Reading over this thread, I wonder if anyone has considered fuel system pulsation as a reason for weird fueling. The stock rail has a number of features to combat this (rubber feed line, inlet restrictor, flat profile, regulator on the end).

On a related / unrelated note, has anyone experienced boost leaks at injectors #2 & #3 due to the stock rail flexing? I'd replaced the seals and lubed them with Krytox and they still leak there. If I press the rail they quite down. I'm only testing to ~30 lbs.

michaelrc51

iTrader: (37)

If you were to install EGT probes in each runner of the manifold you would be able to tell if one cylinder is leaner than the others.

Also, one reason for switching to a different fuel rail is because the welds on the stock ones have broken in some cases.

EvoTurboTurk

Would it be a waste fitting one, if your not pushing that power? Or is it a good mod to do for better fuel delivery?

michaelrc51

iTrader: (37)

Some people might say it is a waste but as mrfred pointed out it will help distribute the pressure more evenly across all 4 injectors.
Also, you won't have to chance an OEM rail braking a weld.