After market fuel rails.

Ryanvilas102 · 01-05-2021, 12:55 AM

Hello just a quick question for anyone out there reading this but I’m planning on doing a tgv delete to my bugeye here soon and I figured while I was at it I’d upgrade my fuel rails...But I’m not sure if I have to upgrade my fuel lines as well or can I keep them stock?

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MortonCharbo · 01-05-2021, 03:23 AM

You can keep em stock as long as they provide your injectors with enough fuel. Basically, if you were using them before without issues, they should be just fine.

What turbo/injectors/pump are you running currently?

snow_bound26 · 01-05-2021, 09:02 AM

Keep the OEM rails unless they are becoming corroded. I'd replace the pieces of rubber hosing though since they are now quite old. The OEM rails are plenty capable. One thing to consider is having your injectors cleaned while you have everything apart. It's cheap insurance to make sure your getting proper fuel to each cyl.

K3rm1tth3fr0g · 01-05-2021, 09:36 AM

My tuner told me switching to IAG rails can help eliminate lean spots while tuning. I'd say upgrade rails when doing TGVs

JarHarms · 01-05-2021, 10:25 AM

Aftermarket fuel rails are not worth the effort and cost for 95% of the persons still using factory sized injectors and marginally increased power levels. You will have to deal with fuel line plumbing, address incorporating the FPR, etc. It is very unlikely your setup will need the larger volume of aftermarket fuel rails to address fuel delivery or harmonic issues.

You do not provide specifics on your 2.0L setup or plans. But after going through your prior posts I would stick to factory rails. Doing so will get your car up and running sooner. Very good idea to replace all of the short rubber hoses and clamps while accessible. Also a great suggestion to have the (aged by now) injectors sent out for ultrasonic cleaning and flow checking while you are working on the other tasks. When injectors return you just install them and finish top end assembly.

v - Yes they do clean up the engine area a bit as long as the fuel plumbing is done well. Trust me, I completely get your reason for considering doing those at the same time.

Ryanvilas102 · 01-06-2021, 12:14 AM

Quote:

Originally Posted by JarHarms

Aftermarket fuel rails are not worth the effort and cost for 95% of the persons still using factory sized injectors and marginally increased power levels. You will have to deal with fuel line plumbing, address incorporating the FPR, etc. It is very unlikely your setup will need the larger volume of aftermarket fuel rails to address fuel delivery or harmonic issues.

You do not provide specifics on your 2.0L setup or plans. But after going through your prior posts I would stick to factory rails. Doing so will get your car up and running sooner. Very good idea to replace all of the short rubber hoses and clamps while accessible. Also a great suggestion to have the (aged by now) injectors sent out for ultrasonic cleaning and flow checking while you are working on the other tasks. When injectors return you just install them and finish top end assembly.

Thanks for the feedback on this.. I was just looking into the possibility of doing the rails when I do the tgv delete mainly because it seems to clean up the motor a lot more. And honestly I’m not trying to do anything crazy with my 2.0 I’m just trying to get it to run right at the moment... and yes I’ve already had my sti blue injectors sent out cleaned for some insurance.

Ryanvilas102 · 01-06-2021, 12:19 AM

Quote:

Originally Posted by MortonCharbo

You can keep em stock as long as they provide your injectors with enough fuel. Basically, if you were using them before without issues, they should be just fine.

What turbo/injectors/pump are you running currently?

Hey thanks for feedback.. they weren’t causing me any issues before I mainly was just going to do it sense I’d have the stock ones off for my tgv’s and aftermarket rails really seem to clean up the motor. But I’ll probably just stick with stock rails for now.

I’m running a vf48 turbo, 565 injectors (sti blues) and 255 walbro fuel pump

Samurai Jack · 01-06-2021, 12:44 PM

Honestly you don't really need to do a full TGV delete. Just remove the butterfly plates in the TGVs and you have most of a full delete for $0 cost.

If you want, you can do some blending inside the TGVs.

Waddlz · 01-06-2021, 12:54 PM

I ran stock fuel lines with Id1300s, hardwired walbro 450 making 461 whp 461wtq on a rotated EFR 7163 with E85 with 0 fueling related issues for 3 years.

I'm swapping to aftermarket fuel rails because I think the OEM rail being small caused me to burn up a walbro 450, and the IAG TGV deletes kept kinking the fuel rails causing boost leaks.

MortonCharbo · 01-07-2021, 12:05 AM

Quote:

Originally Posted by Ryanvilas102

Hey thanks for feedback.. they weren’t causing me any issues before I mainly was just going to do it sense I’d have the stock ones off for my tgv’s and aftermarket rails really seem to clean up the motor. But I’ll probably just stick with stock rails for now.

I’m running a vf48 turbo, 565 injectors (sti blues) and 255 walbro fuel pump

Keep your stock setup then.

I highly recommend taking JarHarm's advice on replacing all the little rubber hoses in there as well.

spoolinsti05 · 01-12-2021, 12:17 AM

Stock fuel rails are fine. Aluminum is nice because they heat up slower. Steel heats up faster but also cools slower.

01-05-2021, 12:55 AM	#1
Ryanvilas102 Scooby Newbie Member#: 491712 Join Date: Sep 2018	After market fuel rails. Hello just a quick question for anyone out there reading this but I’m planning on doing a tgv delete to my bugeye here soon and I figured while I was at it I’d upgrade my fuel rails...But I’m not sure if I have to upgrade my fuel lines as well or can I keep them stock? * Registered users of the site do not see these ads.

01-05-2021, 10:25 AM	#5
JarHarms Scooby Specialist Member#: 138994 Join Date: Jan 2007 Chapter/Region: MWSOC Location: DeKalb-ish, IL Vehicle: 2006 WRX, 6MT, 5x114 TMIC, FP blue, ELH	Aftermarket fuel rails are not worth the effort and cost for 95% of the persons still using factory sized injectors and marginally increased power levels. You will have to deal with fuel line plumbing, address incorporating the FPR, etc. It is very unlikely your setup will need the larger volume of aftermarket fuel rails to address fuel delivery or harmonic issues. You do not provide specifics on your 2.0L setup or plans. But after going through your prior posts I would stick to factory rails. Doing so will get your car up and running sooner. Very good idea to replace all of the short rubber hoses and clamps while accessible. Also a great suggestion to have the (aged by now) injectors sent out for ultrasonic cleaning and flow checking while you are working on the other tasks. When injectors return you just install them and finish top end assembly. v - Yes they do clean up the engine area a bit as long as the fuel plumbing is done well. Trust me, I completely get your reason for considering doing those at the same time. Last edited by JarHarms; 01-06-2021 at 02:49 PM.

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01-05-2021, 03:23 AM	#2
MortonCharbo Scooby Newbie Member#: 487057 Join Date: Jun 2018 Chapter/Region: BAIC Location: California Vehicle: 2002 WRX Wagon PSM	You can keep em stock as long as they provide your injectors with enough fuel. Basically, if you were using them before without issues, they should be just fine. What turbo/injectors/pump are you running currently?

01-05-2021, 09:02 AM	#3
snow_bound26 Scooby Specialist Member#: 395793 Join Date: Jul 2014 Chapter/Region: AKIC Location: Split time between SLC and Lak Vehicle: 2005 92x Aero Beige	Keep the OEM rails unless they are becoming corroded. I'd replace the pieces of rubber hosing though since they are now quite old. The OEM rails are plenty capable. One thing to consider is having your injectors cleaned while you have everything apart. It's cheap insurance to make sure your getting proper fuel to each cyl.

01-05-2021, 09:36 AM	#4
K3rm1tth3fr0g Scooby Newbie Member#: 508105 Join Date: Nov 2019 Chapter/Region: NWIC Location: Seattle, WA Vehicle: 2002 WRX Wagon VF39 Midnight Black Pearl	My tuner told me switching to IAG rails can help eliminate lean spots while tuning. I'd say upgrade rails when doing TGVs

01-06-2021, 12:44 PM	#8
Samurai Jack Scooby Guru Member#: 21145 Join Date: Jul 2002 Chapter/Region: NESIC Location: Not in my own time Vehicle: 2002 Enemy of Aku	Honestly you don't really need to do a full TGV delete. Just remove the butterfly plates in the TGVs and you have most of a full delete for $0 cost. If you want, you can do some blending inside the TGVs.

01-06-2021, 12:54 PM	#9
Waddlz Scooby Specialist Member#: 395275 Join Date: Jul 2014 Chapter/Region: RMIC Location: Brighton, CO Vehicle: 2012 STi SWP	I ran stock fuel lines with Id1300s, hardwired walbro 450 making 461 whp 461wtq on a rotated EFR 7163 with E85 with 0 fueling related issues for 3 years. I'm swapping to aftermarket fuel rails because I think the OEM rail being small caused me to burn up a walbro 450, and the IAG TGV deletes kept kinking the fuel rails causing boost leaks.

01-12-2021, 12:17 AM	#11
spoolinsti05 Scooby Guru Member#: 108051 Join Date: Feb 2006 Chapter/Region: Tri-State Location: NY Vehicle: 2005 TickingTimeBomb Jr tuned TT Sleeved	Stock fuel rails are fine. Aluminum is nice because they heat up slower. Steel heats up faster but also cools slower.