2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Turbo II Fuel Rails

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Old Dec 17, 2010 | 11:16 AM
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RX7Racer46's Avatar
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Turbo II Fuel Rails

http://www.risingrpm.com/products/pr...rail_kit_a.asp

So I found this website after trying to find some S4 fuel rails for my S5 Turbo II. After long and tireless hours of searching for some used S4 rails, with no luck, I decided to go aftermarket. Has anyone used these before and if not, I bought them and will let you know how they work. Oh and the oil bock comes with it too. Not a bad deal IMHO.

Here is a pic.
Attached Thumbnails Turbo II Fuel Rails-500_rrpm_fuel_rail_kit.jpg  
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Old Dec 17, 2010 | 11:54 AM
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87 t-66's Avatar
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used s4 fuel rails are very common and only $25-$35...where are you looking? i'd imagine the aftermarket ones would work but they seem unnecessary. the throttle body inlet they sell is pretty slick.
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Old Dec 17, 2010 | 12:12 PM
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i probably have a spare set of s4 rails...want to buy them? 25 plus shipping..
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Old Dec 17, 2010 | 12:49 PM
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I can't imagine you looked very hard... Those units look good though. I'm interested to see that oil junction block mounted on a car....
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Old Dec 17, 2010 | 01:54 PM
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to you guys saying they're easy to come by, have you looked lately? probably not.

parts for these cars come in spurts here and there, without digging months back and hoping someone hasn't sold them just about anything for the turbo cars is and has been becoming difficult to find with everyone going turbo.
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Old Dec 17, 2010 | 02:23 PM
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however after doing some research i now am planning on making aftermarket fuel rails for the FC since there is a lack of products out there for them.
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Old Dec 17, 2010 | 02:35 PM
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RX7Racer46
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Originally Posted by Karack
to you guys saying they're easy to come by, have you looked lately? probably not.

parts for these cars come in spurts here and there, without digging months back and hoping someone hasn't sold them just about anything for the turbo cars is and has been becoming difficult to find with everyone going turbo.
Thank you! I really have been looking all week. Karack is proof.
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Old Dec 23, 2010 | 10:26 AM
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Originally Posted by sharingan 19
I can't imagine you looked very hard... Those units look good though. I'm interested to see that oil junction block mounted on a car....
Here are pics from their website with the oil junction block installed.
Attached Thumbnails Turbo II Fuel Rails-500_rrpm_fuel_rail_kit_mounted.jpg   Turbo II Fuel Rails-500_fuel_rail_kit_group_a_7.jpg  
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Old Dec 23, 2010 | 10:37 AM
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Black Knight RX7 FC3S's Avatar
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hmm, the rail and the TB inlet looks promising, as for the oil block, why is the ports way off the center though.

If you are going to install a FPR, aftermarket fuel rails will be better suited. For me, they just offer a lot of connection possibilities.
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Old Dec 23, 2010 | 10:39 AM
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don't know but it doesn't look like it will work with most stock applications.

the oil filter pedestal is just too large, i'm not sure why they made it so huge and bulky.
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Old Dec 27, 2010 | 11:12 PM
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Originally Posted by Black Knight RX7 FC3S
hmm, the rail and the TB inlet looks promising, as for the oil block, why is the ports way off the center though.

If you are going to install a FPR, aftermarket fuel rails will be better suited. For me, they just offer a lot of connection possibilities.
The Large Ports are fuel ports on the oil block.
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Old Dec 27, 2010 | 11:29 PM
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The Oil block allows of mounting the oil filter and oil pressure gages (1/8 NPT) also has 3/8 NPT connections to mount a "Solid Connection" so that the fuel lines route to the firewall hard lines without resting on the engine itself, eliminating the possibility of vibration and wear to the fuel lines possibly causing a fuel leak.
For those too lazy to read the description on the site.
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Old Dec 28, 2010 | 12:02 PM
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Originally Posted by RX7Racer46
The Large Ports are fuel ports on the oil block.
well sort of.
they are holes where the fuel lines can go through so you don't have to let your fuel feed and return lines dangle on the engine.
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