Limits of fuel rails and restrictions?

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PhyrraM
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Limits of fuel rails and restrictions?

Post 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.

Image

Another view
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And for comparision, a non-damaged one.
Image

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.
'93 Winestone SS Auto, '91 Pearl White SS.
'93 Pure White SS EJ20G slanty intercooled, SIDESWIPED! In stasis.
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asc_up
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Post 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?
-Aaron

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Legacy777
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Post 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.
Josh

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93forestpearl
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Post by 93forestpearl »

These:

Image

Plus this:

Image



= win.
→Dan

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PhyrraM
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Post by PhyrraM »

93forestpearl wrote:These:

Image

Plus this:

Image



= 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.
'93 Winestone SS Auto, '91 Pearl White SS.
'93 Pure White SS EJ20G slanty intercooled, SIDESWIPED! In stasis.
'94 FWD and '95 AWD Laguna Blue SVXs.
2017 Pure Red BRZ Limited w/Performance pack
Legacy Rally Guy
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Post 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
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RJ93SS
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Post by RJ93SS »

that's fucking awesome
93SS 04 wrx brakes/slotted w/ hawks--TD05 -- 06 I/C -- 20mm n/a fsb -- Stage 2 -- 550's -- Perrin DIV DP -- 2-3/4 Tit Exhaust -- K&N -- C/C -- A/C Delete -- Grounded -- GT Leather Interior -- WRX/STI Strut Setup -- 17" 225's -- 2 Kids Seats ;)
douglas vincent
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Post by douglas vincent »

Unless you are shooting for over 250 whp, I suggest the "plier" fix.
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Legacy Rally Guy
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Post 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!
1991 Legacy N/A- Being built to withstand zombie apocalypse!
2004 WRX STi- (GT3076r, 850cc Deatchwerks, Unequal Length Headers, FMIC, Alum Driveshaft, Camber Kit, Daily Driver)
93forestpearl
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Post by 93forestpearl »

Don't get much cheaper than that.




I prefer Knipex pliers :wink:
→Dan

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