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Limits of fuel rails and restrictions?

Posted: Fri Jun 19, 2009 12:15 am
by PhyrraM
While cleaning up and assembling the intake manifold for my 2.35 stroker I noticed this kink in the fuel supply hose. This is the main inlet, from the fuel filter.

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Another view
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And for comparision, a non-damaged one.
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Think this will pose a restriction with supplying enough fuel? It's a 2.35 stroker with a 90 degree inlet TD05-16G and USDM STI 550cc "yellow" injectors? Intercooler to de determined. Straight California 91 octane pee-water- no meth/alchohol/water injection or any other "consumable" octane enhancer.

My horsepower will be set by the weakest link, and I don't want it to be the stupid fuel rail. Ideally I'd like to "max out" the turbo. And for smog reasons a parallel fuel feed is a secondary, but possible, option.

Posted: Fri Jun 19, 2009 12:19 am
by asc_up
I wouldn't risk it. Chances are that you could get away with it, but if you're looking to supply enough fuel to max out a TD05, you may as well get a new rail or repair that one.

Can you squeeze the sides of it with pliers to help round it back out?

Posted: Fri Jun 19, 2009 2:00 am
by Legacy777
It should be fine. I believe almost all of the fuel rails I've seen have some sort of flat bend like that......although that one may look a little more flat.

Posted: Fri Jun 19, 2009 2:09 am
by 93forestpearl
These:

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Plus this:

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= win.

Posted: Fri Jun 19, 2009 2:26 am
by PhyrraM
93forestpearl wrote:These:

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Plus this:

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= win.
Oh yes, I know. But I'm trying to stay "clean" and be able to pass a visual smog inspection in addition to the sniffer.

I think I'm going to see if I can source another set of EJ20G fuel lines/rails. Second choice is to replace just that section with hose. That should look pretty factory also.

Posted: Wed Aug 26, 2009 5:19 am
by Legacy Rally Guy
This company has EJ22 stuffs for fuel system fixing... Some things are mild and some things are pretty friggin high end..

http://www.outfrontmotorsports.com/fuel_rail_setup.htm

Posted: Wed Aug 26, 2009 5:44 am
by RJ93SS
that's fucking awesome

Posted: Wed Aug 26, 2009 6:20 am
by douglas vincent
Unless you are shooting for over 250 whp, I suggest the "plier" fix.

Posted: Wed Aug 26, 2009 2:44 pm
by Legacy Rally Guy
douglas vincent wrote:Unless you are shooting for over 250 whp, I suggest the "plier" fix.
*nodding* Douglas Vincent knows his shtuff!

Posted: Thu Aug 27, 2009 5:06 am
by 93forestpearl
Don't get much cheaper than that.




I prefer Knipex pliers :wink: