Aftermarket Fuel Rails?

Zenki7 · 11-30-2009, 09:16 PM

Hey can anyone give me some direction on where to get some good aftermarket fuel rails for a decent price.....

Any help would be great thanks

If anyone knows of a good place to pick up -AN fittings for great price let me know that too!

NoDOHC · 12-01-2009, 12:30 AM

I don't know about aftermarket pre-manufactured fuel rails, I know you can buy fuel rail and a special drill bit and make your own.

The stock s5 fuel rail is pretty good.

Be careful of Stainless steel lines. If properly installed, they are Ok, but they have a nasty tendency to spring leaks at very inopportune times.

Zenki7 · 12-01-2009, 10:56 AM

I have an S4 I know there are some aftermarket fuel rails you can buy I could buy aluminum and drill injector holes but I dont have anything to tap to put the fittings in... Im going -AN....

***TitaniumTT*** · 12-01-2009, 11:28 AM

I usually buy the bungs and TIG them on. Makes for tighter fitting fittings. Any machine shop will be able to tap them. I would be worried about drilling holes for injectors though. Without a proper bit/polishing of the bore, you're likely to tear and o-ring or have the potnetial for leaks

C. Ludwig · 12-01-2009, 12:08 PM

http://kgparts.com/index.php?page=kgfuel

http://www.skernracing.com/fuelrails.html

I've made my own and used a few different aftermarket rails. If you haven't made them before just buy them pre-made and save yourself some headaches.

Summit and Jegs are hard to beat on their -AN prices. Their house brands are less expensive but I have had issues with the Summit brand leaking. I'll usually pay the markup and stick with Earl's because I know I'm getting a quality part.

With the S4/5 you can have the Bosch injectors setup with a pintle cap that allows them to fit in the stock manifold without the need for sleeves or a wad of o-rings to get them to seal correctly. Marren sells these injectors as their "Pro-Import" injectors at a serious markup. If you have a competent injection shop close by you can take a regular "domestic" Bosch EV1 injector and have the pintle cap changed to replicate the Denso injector for a stock fit with the stock injector grommets.

misterstyx69 · 12-03-2009, 12:00 AM

Kg rails..and Keith can make any Modifications you need to accomodate you.
I am in Canada and I deal with this Gentleman beacuse he responds quick,Knows his stuff,and his prices are good and reflect quality parts,.
His shipping/Turn around time is Real fast..Five days is VERY good for US/Canada shipping.

Flys · 12-03-2009, 02:39 AM

If you decide to make your own fuel rail, make sure you use the appropriate size ream bit. Also, radius the leading edge of the hole to allow the o-ring to squeeze in. Cratex bits work great for this, as well as the polishing Titanium mentioned.

Max777 · 12-11-2009, 10:26 PM

can you not just get an fitting adaptors for the Stock S4 turbo rails? Something like 12x1.25-to-AN size and then use fittings and lines?

IE: http://www.pegasusautoracing.com/pro...asp?RecID=5936

11-30-2009, 09:16 PM	#1
Zenki7 Rotary Fan in Training Join Date: Mar 2008 Posts: 56 Rep Power: 18	Aftermarket Fuel Rails? Hey can anyone give me some direction on where to get some good aftermarket fuel rails for a decent price..... Any help would be great thanks If anyone knows of a good place to pick up -AN fittings for great price let me know that too! __________________

12-01-2009, 12:30 AM	#2
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin Posts: 855 Rep Power: 17	I don't know about aftermarket pre-manufactured fuel rails, I know you can buy fuel rail and a special drill bit and make your own. The stock s5 fuel rail is pretty good. Be careful of Stainless steel lines. If properly installed, they are Ok, but they have a nasty tendency to spring leaks at very inopportune times. __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)

12-01-2009, 10:56 AM	#3
Zenki7 Rotary Fan in Training Join Date: Mar 2008 Posts: 56 Rep Power: 18	I have an S4 I know there are some aftermarket fuel rails you can buy I could buy aluminum and drill injector holes but I dont have anything to tap to put the fittings in... Im going -AN.... __________________

12-01-2009, 11:28 AM	#4
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son Posts: 4,581 Rep Power: 10	I usually buy the bungs and TIG them on. Makes for tighter fitting fittings. Any machine shop will be able to tap them. I would be worried about drilling holes for injectors though. Without a proper bit/polishing of the bore, you're likely to tear and o-ring or have the potnetial for leaks __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

12-01-2009, 12:08 PM	#5
C. Ludwig Rotary Masochist Join Date: May 2008 Location: Floyds Knobs, IN Posts: 494 Rep Power: 17	http://kgparts.com/index.php?page=kgfuel http://www.skernracing.com/fuelrails.html I've made my own and used a few different aftermarket rails. If you haven't made them before just buy them pre-made and save yourself some headaches. Summit and Jegs are hard to beat on their -AN prices. Their house brands are less expensive but I have had issues with the Summit brand leaking. I'll usually pay the markup and stick with Earl's because I know I'm getting a quality part. With the S4/5 you can have the Bosch injectors setup with a pintle cap that allows them to fit in the stock manifold without the need for sleeves or a wad of o-rings to get them to seal correctly. Marren sells these injectors as their "Pro-Import" injectors at a serious markup. If you have a competent injection shop close by you can take a regular "domestic" Bosch EV1 injector and have the pintle cap changed to replicate the Denso injector for a stock fit with the stock injector grommets. __________________ _______________________________________________ *One stop Haltech, AEM, Syvecs shopping. Installation and tuning.* http://www.lms-efi.com *Free support. Drop us an email.* chris@lms-efi.com 502-515-7482 Facebook @LMS-EFI Last edited by C. Ludwig; 12-01-2009 at 12:11 PM.

12-03-2009, 12:00 AM	#6
misterstyx69 .drives like MrMagoo! Join Date: Feb 2008 Location: Smiths Falls,Ontario Posts: 198 Rep Power: 18	Kg rails..and Keith can make any Modifications you need to accomodate you. I am in Canada and I deal with this Gentleman beacuse he responds quick,Knows his stuff,and his prices are good and reflect quality parts,. His shipping/Turn around time is Real fast..Five days is VERY good for US/Canada shipping.

12-03-2009, 02:39 AM	#7
Flys The Newbie Join Date: Dec 2008 Posts: 7 Rep Power: 0	If you decide to make your own fuel rail, make sure you use the appropriate size ream bit. Also, radius the leading edge of the hole to allow the o-ring to squeeze in. Cratex bits work great for this, as well as the polishing Titanium mentioned.

12-11-2009, 10:26 PM	#8
Max777 Pirate Join Date: Mar 2008 Location: Central IL Posts: 1,323 Rep Power: 19	can you not just get an fitting adaptors for the Stock S4 turbo rails? Something like 12x1.25-to-AN size and then use fittings and lines? IE: http://www.pegasusautoracing.com/pro...asp?RecID=5936 __________________ Rotaries:They are NOT that complicated!